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Schweitzer Engineering Laboratories SEL-352-1, Instruction Manual

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Date Code 20010731 

Installation 

2-29 

 

SEL-352-1, -2 Instruction Manual 

Configure the output contacts as “a” contacts or “b” contacts with solder jumpers.  Figure 2.26 
shows the location of the jumpers and explains the jumper position.  Contacts are factory 
configured as “a” contacts. 

 

Figure 2.26:  Interface Board 4 Component Layout 

Summary of Contents for SEL-352-1

Page 1: ...SEL 352 1 2 BREAKER FAILURE RELAY CONTROL RELAY DATA RECORDER INSTRUCTION MANUAL SCHWEITZER ENGINEERING LABORATORIES 2350 NE HOPKINS COURT PULLMAN WA USA 99163 5603 TEL 509 332 1890 FAX 509 332 7990 ...

Page 2: ... être réduit afin de ne pas user la mémoire non volatile Limiter la commande automatique BRE C à une opération par semaine ou moins WARNING This device is shipped with default passwords Default passwords should be changed to private passwords at installation Failure to change each default password to a private password may allow unauthorized access SEL shall not be responsible for any damage resul...

Page 3: ...tion 3 Specifications changed name to Section 1 Introduction and Specifications removed information regarding manual fonts formatting and objective reading Section 3 replaced and renamed to Section 3 Breaker Logic which includes Protection Logic and Breaker Alarm Logic from previous Section 4 Relay Logic and all of previous Section 5 Breaker Failure Applications reordered and edited text added dis...

Page 4: ...ed cautions warnings and dangers in English and French Section 1 made typographical corrections Section 2 inserted updated dimension panel mount cutout front and rear panel drawings merged drawings and information from Appendix G Optional I O Board Specifications into this section added a caution about replacing the clock battery Section 3 updated specifications Section 4 reordered some subsection...

Page 5: ...umber 5 041 737 to the reverse of the page Section 1 Updated the section including adding a new functional diagram page 1 10 Section 5 Updated the section including adding Figure 5 3 page 5 3 and replacing previous Figures 5 5 through 5 9 with Figures 5 6 through 5 10 pages 5 8 through 5 12 Section 7 Made typographical corrections Added cautionary notes about clearing the event report buffer page ...

Page 6: ...mmands and Appendix F Relay Word Added 110 Vdc level sensitive input option to Section 3 Specifications and Appendix G Optional I O Board Specifications 20000104 Appendix A Added Firmware Version SEL 352 1 R102 990623 Section 3 Changed voltage in 59V Setting Range Section 4 Corrected Figures 4 21 and 4 38 Made editorial typographical corrections Section 8 Added SET T Command Settings Improved Sett...

Page 7: ... ac analog inputs and dc control inputs outputs 980102 New manual for SEL 352 1 Relay was created from last revision of SEL 352 Relay dated 970820 The SEL 352 1 Relay will replace the SEL 352 Relay as the standard relay offering Performance enhancements installed to create the 352 1 version are as follows 1 Subsidence current detection logic to shorten the dropout time of overcurrent elements 2 Pr...

Page 8: ......

Page 9: ... RELAY SECTION 8 SERIAL PORT COMMUNICATIONS AND COMMANDS SECTION 9 FRONT PANEL INTERFACE SECTION 10 EVENT REPORTS AND SER SECTION 11 TESTING AND TROUBLESHOOTING APPENDICES Appendix A Firmware Versions in This Manual Appendix B Firmware Upgrade Instructions Appendix C SEL Distributed Port Switch Protocol LMD Appendix D Configuration Fast Meter and Fast Operate Commands Appendix E Compressed ASCII C...

Page 10: ......

Page 11: ...ations 1 10 Overcurrent Elements 1 10 Pickup Dropout Curves 1 11 Voltage Elements 1 13 Synchronism Check Element 1 13 Current Unbalance Element 1 14 Overpower Elements 1 14 Breaker Resistor Thermal Elements 1 14 Settable Timers 1 14 Fixed Timers 1 15 Internal Logic Timers 1 15 Metering 1 16 Multiple Setting Groups 1 16 Data Recording Specifications 1 16 Event Records 1 16 Breaker Monitor Reporting...

Page 12: ......

Page 13: ...pabilities breaker operating time monitors energy interruption monitors and breaker resistor thermal protection Simple hardware design and efficient digital signal processing provide reliability Extensive self testing and communication capabilities enhance availability Figure 1 1 shows a single phase diagram of the ac connections All nine connections are not required for most relay functions Figur...

Page 14: ...nformation and obtain metering information etc Section 9 Front Panel Interface for a description of how to perform the serial port commands from the front panel Section 6 Metering and Monitoring to learn how to retrieve operations data such as metering dc battery monitor breaker monitor and relay status Section 10 Event Reports and SER for a description of event report and sequential events report...

Page 15: ...oint on Wave Closing Trapped Line Charge Detection Flashover Protection Breaker Isolation Control Single Pole Fail to Close Detection DNP 3 00 Level 2 Slave SELOGIC Control Equation Analog Compares optional Figure 1 2 Functional Overview Breaker Failure Detection The SEL 352 Relay has five fault current driven breaker failure detection schemes including one specifically designed for ring bus or br...

Page 16: ...olarity and zero crossings Control breaker tripping through lockout and reset conditions instantaneous retripping and time delayed retripping Use the flexible SELOGIC control equations to create your own recloser implement manual closing supervision and or change existing control logic to meet your needs Data Recording A wide range of user selectable events trigger the sequential events recording ...

Page 17: ... operations total current total energy and percent wear fields in the operation summary on a per pole basis Optional Distributed Network Protocol DNP 3 00 Level 2 Slave communications protocol Conventional Terminal Blocks This model includes hardware that supports three current inputs six voltage inputs six optoisolated inputs seven programmable output contacts one alarm contact three EIA 232 port...

Page 18: ... Factor 50 Hz Harmonic Correction Factor 60 Hz Correction Factor 50 Hz Fundamental 1 1 20 th 1 42 1 21 through 8 th 21 st 1 50 1 25 9th 1 01 1 22nd 1 59 1 30 10th 1 02 1 01 23rd 1 68 1 36 11th 1 03 1 01 24th 1 78 1 42 12th 1 05 1 02 25th 1 89 1 48 13th 1 07 1 03 26th 2 01 1 56 14th 1 10 1 04 27th 2 14 1 63 15th 1 14 1 06 28th 2 27 1 72 16th 1 18 1 08 29th 2 40 1 80 17th 1 23 1 11 30th 2 55 1 89 18...

Page 19: ...n lb 1 0 Nm Terminal Connections Terminals or stranded copper wire Ring terminals are recommended Minimum temperature rating of 105 C AC Current Inputs 5 A nominal 15 A continuous 500 A for 1 s linear to 100 A symmetrical 1250 A for 1 cycle Burden 0 27 VA at 5 A 2 51 VA at 15 A 1 A nominal 3 A continuous 100 A for 1 s linear to 20 A symmetrical 250 A for 1 cycle Burden 0 13 VA at 1 A 1 31 VA at 3 ...

Page 20: ...s Note Do not use high current interrupting output contacts to switch ac control signals These outputs are polarity dependent Fast High Current Interrupting Option Make 30 A Carry 6 A continuous carry at 70 C 4 A continuous carry at 85 C 1 second rating 50 A MOV protected 330 Vdc 40 J Pickup time Less than 200 µs Dropout time Less than 8 ms typical Breaking Capacity 10000 operations 24 V 10 A L R ...

Page 21: ... 68 2 1 1990 EN 60068 2 1 1993 Test Ad 16 hours at 40ºC Dry Heat IEC 60068 2 2 IEC 68 2 2 1974 EN 60068 2 2 1993 Test Bd 16 hours at 85ºC Damp Heat Cyclic IEC 60068 2 30 IEC 68 2 30 1980 Test Db 25º to 55ºC 6 cycles 95 humidity Damp Heat Steady State IEC 60068 2 3 IEC 68 2 3 1990 Test C Dielectric Strength IEC 60255 5 IEC 255 5 1977 and IEEE C37 90 1989 2500 Vac on analogs contact inputs and conta...

Page 22: ...out time less than 1 35 cycles pickup and dropout 0 025 A secondary 5 of setting transient overreach 5 of setting 50MN Minimum Current Element current threshold fixed 0 10 A secondary Inom 5 A 0 02 A secondary Inom 1 A pickup time less than 0 9 cycle at 2 multiples of pickup dropout time less than 1 35 cycles pickup and dropout 0 03 A secondary transient overreach 5 of setting 50N Ground Overcurre...

Page 23: ...t data at room temperature using various settings Relay element specifications given previously in this section include the entire temperature range of the relay Output contact times are not included 0 XUUHQW LQ 0XOWLSOHV RI 6HWWLQJ F OH V 0D 0HDQ 0LQ Figure 1 4 50FT Pickup Curves 0 XUUHQW LQ 0XOWLSOHV RI 6HWWLQJ F OH V 0LQ 0D 0HDQ Figure 1 5 50FT Dropout Curves ...

Page 24: ...L 352 1 2 Instruction Manual XUUHQW LQ 0XOWLSOHV RI 6HWWLQJ 01 LV IL HG DW Â QRP FOHV 0D 0HDQ 0LQ 0 Figure 1 6 50MN 50LD 50MD 50N Pickup Curves XUUHQW LQ 0XOWLSOHV RI 6HWWLQJ 01 LV IL HG DW Â QRP FOHV 0D 0HDQ 0LQ 0 Figure 1 7 50MN 50LD 50MD 50N Dropout Curves ...

Page 25: ...pickup and dropout 0 09 V secondary 5 of setting transient overreach 5 of setting X27D Y27D Dead Line Undervoltage Element setting range 1 0 120 0 V secondary 0 1 V steps pickup time less than 1 35 cycles dropout time less than 1 55 cycles pickup and dropout 0 09 V secondary 5 of setting transient overreach 5 of setting X59L Y59L Live Line Overvoltage Element setting range 10 0 120 0 V secondary 0...

Page 26: ...stor Failure Element 26TP Trip Resistor Pending Failure Element setting range 0 010 1000 000 Joules secondary 0 001 J steps Inom 5 A 0 002 200 000 Joules secondary 0 001 J steps Inom 1 A pickup error is based on 37OP element over time Settable Timers SYNCT Synchronizing Time Dropout SYNCdo setting range 0 00 99999 00 cycles 1 4 cycle steps pickup setting 0 25 cycles or 0 25 of setting 62TT Failure...

Page 27: ...62LT1 Loss of Dielectric Input Debounce Timer 60 cycles 0 25 cycles 62LT3 Loss of Dielectric Input Debounce Timer 60 cycles 0 25 cycles MCT Manual Close Input Dropout Timer 2 cycles 0 25 cycles SEN Synchronism Calculation Enable Pickup Timer 15 cycles 0 25 cycles SS Slip Security Pickup Timer 4 5 cycles 0 25 cycles Internal Logic Timers 62XZPB B Phase Positive Zero Crossing Delay Timer for X Side ...

Page 28: ...up selection input 1 SS2 Setting group selection input 2 Number of setting groups 3 Setting group change delay TGR setting and up to 3 seconds uncertainty DATA RECORDING SPECIFICATIONS Event Records MER Event Report Trigger pickup accuracy 0 000 to 0 125 cycles number of events 600 LER setting 15 30 or 60 cycles SER1 Sequential Event Recorder Trigger List 1 SER2 Sequential Event Recorder Trigger L...

Page 29: ...EL 352 1 2 Instruction Manual SERIAL PORT SPECIFICATIONS Port 1 EIA 485 with IRIG B input Port 2 EIA 232 with IRIG B input and 5 Vdc output Maximum total current draw on 5 Vdc supply through serial ports is 1 A Port 3 EIA 232 with 5 Vdc output Port 4 EIA 232 ...

Page 30: ......

Page 31: ...iguration 2 17 Accessing the Relay Circuit Boards 2 17 Main Board 2 18 Output Contact Jumpers 2 18 Second ALARM Contact Jumper 2 20 Password and Breaker Jumpers 2 20 EIA 232 Serial Port Jumpers 2 21 Condition of Acceptability for North American Product Safety Compliance 2 21 Other Jumpers 2 21 Low Level Analog Interface 2 21 Clock Battery 2 21 Optional Interface Boards 2 22 Interface Board 1 16 Ou...

Page 32: ...re 2 15 SEL 352 Relay Example DC Input Connections 2 17 Figure 2 16 SEL 352 Relay Main Board Jumpers Connections and Battery Locations 2 19 Figure 2 17 Interface Board 1 Output Contacts Board Position 1 2 23 Figure 2 18 Interface Board 1 Output Contacts Board Position 2 2 23 Figure 2 19 Interface Board 1 Component Layout 2 24 Figure 2 20 Interface Board 2 Output Contacts Board Position 1 2 25 Figu...

Page 33: ...19 inch rack See Figure 2 2 and Figure 2 3 From the front of the relay insert four bolts two on each side through the holes on the relay mounting flanges and use nuts to secure the relay to the rack See Figure 2 1 Panel Mount We also offer the SEL 352 Relay in a panel mount version for a clean look Panel mount relays have sculpted front panel molding that covers all installation holes See Figure 2...

Page 34: ...2 2 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Dimensions and Cutout Figure 2 1 Dimension Drawing and Panel Mount Cutout ...

Page 35: ...Date Code 20010731 Installation 2 3 SEL 352 1 2 Instruction Manual Figure 2 2 Front Panel Drawings Models 0352x0xxxH and 0352x1xxxH ...

Page 36: ...2 4 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 3 Front Panel Drawing Model 0352x2xxxH ...

Page 37: ...Date Code 20010731 Installation 2 5 SEL 352 1 2 Instruction Manual Figure 2 4 Front Panel Drawings Models 0352x0xxx3 and 0352x1xxx3 ...

Page 38: ...2 6 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 5 Front Panel Drawing Model 0352x2xxx3 ...

Page 39: ...sconnect voltage rated connector for voltage inputs The manufacturers of these connectors have tested them thoroughly and many industry applications have proven the performance of these connectors In addition we have tested these connectors thoroughly to be certain that they conform to our standards for protective relay applications Terminal Block Make terminal block connections with size 6 32 scr...

Page 40: ...2 8 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 6 Rear Panel Drawings Models 0352x0xxxxX and 0352x1xxxx1 ...

Page 41: ...Date Code 20010731 Installation 2 9 SEL 352 1 2 Instruction Manual Figure 2 7 Rear Panel Drawing Model 0352x2xxxx15 ...

Page 42: ...2 10 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 8 Rear Panel Drawings Models 0352xYxxxx2 and 0352xYxxxx6 ...

Page 43: ...relay chassis with the screws at each connector end When removing a CT shorting connector pull it straight away from the relay rear panel Removing a shorting connector causes internal mechanisms within the connector to individually short out each power system current transformer Potential Transformer Input The two three phase sets of voltage inputs are internally wye connected voltage inputs Each ...

Page 44: ...cal for both terminal block and Connectorized relay types They are illustrated here as they apply to a terminal block version Standard independent dry output contacts that are not polarity dependent are represented by Figure 2 9 Figure 2 9 Standard Independent Output Contact Representation Standard dry output contacts that share a common terminal for each pair of contacts but are not polarity depe...

Page 45: ... rear panel provides pin definitions for Ports 1 2 3 and 4 Refer also to Section 8 Serial Port Communications and Commands for more serial port details Port 1 is an EIA 485 protocol connection on the rear of the relay Port 1 accepts a plug in plug out terminal block that supports wire sizes from 24 AWG to as large as 12 AWG The connector comes with the relay Ports 2 3 and 4 are EIA 232 protocol co...

Page 46: ...elay accepts a demodulated IRIG B format signal for synchronizing an internal clock to some external source such as the SEL 2020 or SEL 2030 Communications Processor SEL IDM or satellite time clock Connect the IRIG B source to the relay through the connectors for serial Ports 1 or 2 Refer to the port pin definition of each port for the appropriate connection Plug In Connectors Connectorized Model ...

Page 47: ... to 14 One connector for POWER inputs and The wire size selection is from AWG 18 to 14 One spade connector for chassis GROUND connection Plug the CT shorting connector into terminals Z01 through Z06 Secure the connector to the relay chassis with the two screws located on each end of the connector When removing the CT shorting connector pull it straight away from the relay rear panel When the conne...

Page 48: ...wn Old New WA03521J WA0352xY The other connectors on the Connectorized SEL 352 Relay rear panel power input voltage inputs output contacts etc are the same for the old or new models Only the current transformer shorting connector has changed Figure 2 8 shows the rear panel for the new model 0352xY This figure can also be used as a reference for the old model 0352xJ All terminal labeling numbering ...

Page 49: ...ove the relay circuit boards so you can change circuit board jumpers or replace the clock battery and 2 how to replace the circuit boards in the relay Accessing the Relay Circuit Boards 1 De energize the relay by removing the connections to rear panel terminals Z25 and Z26 Accomplish this easily on Connectorized relays by removing the connector at rear panel terminals Z25 and Z26 2 Remove any cabl...

Page 50: ...t jumpers are soldered in place 8 When finished slide the drawout assembly into the relay chassis Reconnect the cables you removed in step 5 Replace the relay front panel cover 9 Replace any cables previously connected to serial ports 10 Reenergize the relay by reconnecting wiring to rear panel terminals Z25 and Z26 On Connectorized versions replace the power connector at rear panel terminals Z25 ...

Page 51: ...Date Code 20010731 Installation 2 19 SEL 352 1 2 Instruction Manual Figure 2 16 SEL 352 Relay Main Board Jumpers Connections and Battery Locations ...

Page 52: ...be in the same state closed or open If jumper JMP23 is installed on the two bottom pins and output contacts OUT107 and ALARM are different output contact types one is an a and one is a b they will be in opposite states one is closed and one is open Password and Breaker Jumpers Refer to Figure 2 16 and note the password and breaker jumpers identified as JMP6 To change these jumpers remove the relay...

Page 53: ...uirement Other Jumpers Additional main board jumpers JMP5A through JMP5D located near JMP6 are not functional in the SEL 352 Relay Originally they were installed for developmental testing purposes but are not used in the production version of the relay Jumpers must not be installed in any JMP5 position Low Level Analog Interface SEL designed the SEL 352 Relay main board to accept low level analog ...

Page 54: ...pplication flexibility The number of inputs number of outputs operating speeds interrupt capabilities and operation configuration vary depending on the interface board This subsection describes each optional I O board and shows a partial rear panel diagram for each optional I O board To determine what I O boards are installed in an existing relay issue the INI ENTER command Refer to Section 8 Seri...

Page 55: ...ntacts 1 2 cycle or less typical is 1 4 cycle These 16 standard dry output contacts share a common terminal for each pair of contacts but are not polarity dependent The rear of the relay will be similar to the following figures Figure 2 17 Interface Board 1 Output Contacts Board Position 1 Figure 2 18 Interface Board 1 Output Contacts Board Position 2 Configure the output contacts as a contacts or...

Page 56: ...2 24 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 19 Interface Board 1 Component Layout ...

Page 57: ...ake 6 A carry Closing pickup for a contacts dropout for b contacts 1 4 cycle or less Opening dropout for a contacts pickup for b contacts 1 2 cycle or less typical is 1 4 cycle Interface Board 2 provides 12 output contacts These 12 standard dry output contacts have independent terminals for each pair of contacts and are not polarity dependent The rear of the relay will be similar to the following ...

Page 58: ...2 26 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 22 Interface Board 2 Component Layout Screw Terminal Block Version ...

Page 59: ...Date Code 20010731 Installation 2 27 SEL 352 1 2 Instruction Manual Figure 2 23 Interface Board 2 Component Layout Plug In Connector Version ...

Page 60: ...rnal connections between inputs See General Specifications in Section 1 Introduction and Specifications for ratings Output Contacts 30 A make 6 A carry Closing pickup for a contacts dropout for b contacts 1 4 cycle or less Opening dropout for a contacts pickup for b contacts 1 2 cycle or less typical is 1 4 cycle Interface Board 4 provides four standard independent output contacts These four stand...

Page 61: ...on Manual Configure the output contacts as a contacts or b contacts with solder jumpers Figure 2 26 shows the location of the jumpers and explains the jumper position Contacts are factory configured as a contacts Figure 2 26 Interface Board 4 Component Layout ...

Page 62: ...to relay capabilities the outputs of the SEL 352 Relay are specified at 200 ms 0002 seconds The output contact that is in the eighth position K1 in Figure 2 30 may be configured as either an a or b contact Figure 2 30 explains the jumper position K1 is factory configured as an a contact All other outputs 1 7 are fixed a contacts closed when coil is energized Short transient inrush current may flow...

Page 63: ...milar to the following drawings Figure 2 27 Interface Board 5 Output Contacts Board Position 1 Figure 2 28 Interface Board 5 Output Contacts Board Position 2 Figure 2 29 Possible Connections for Fast High Current Interrupting Output Contacts Circuit Load Not Shown Third Terminal Connection is Optional ...

Page 64: ...2 32 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 30 Interface Board 5 Component Layout ...

Page 65: ...opout for b contacts 1 4 cycle or less Opening dropout for a contacts pickup for b contacts 1 2 cycle or less typical is 1 4 cycle Interface Board 6 provides 12 output contacts These 12 High Current Interrupting dry output contacts can interrupt 10 A of inductive current with an L R 0 04 seconds at 125 Vdc At 250 Vdc they will interrupt 10 A of inductive current for an L R 0 02 seconds These outpu...

Page 66: ...2 34 Installation Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 2 33 Interface Board 6 Component Layout Screw Terminal Block Version ...

Page 67: ...Date Code 20010731 Installation 2 35 SEL 352 1 2 Instruction Manual Figure 2 34 Interface Board 6 Component Layout Plug In Connector Version ...

Page 68: ......

Page 69: ...rip Timer Pickup Time TTpu Scheme 4 3 16 Trip Timer Dropout Time TTdo Scheme 1 3 17 Trip Timer Dropout Time TTdo Scheme 4 3 17 Setting Calculations 3 17 Fault Detector 50FT 3 17 Fault Logic Enable FTLOG 3 18 Fault Clearing Pickup Time FCpu 3 18 Load or Line Charging Current Conditions 3 19 Application Description 3 19 Operating Characteristic 3 19 Scheme 1 Load Current 3 19 Scheme 2 Load Current W...

Page 70: ...d Close Resistors 3 29 Phase Overpower 37OP 3 30 Thermal Model Voltage Threshold 87TH 3 30 Overpower Pickup OPpu 3 31 Close Resistor Energy 3 31 Close Pending Failure 26CP 3 32 Close Failure 26CF 3 32 Trip Resistor Energy 3 32 Trip Pending Failure 26TP 3 32 Trip Failure 26TF 3 32 Cooling Time Constants CRTC TRTC 3 32 Flashover Conditions 3 33 Application Description 3 33 Operating Characteristic 3...

Page 71: ...ristic 3 43 Setting Description 3 44 Dielectric Pressure Level Indicators LOD1 LOD2 LODCT 3 44 Loss of Dielectric Logic Enable DELOG 3 44 Leak Timer L2pu 3 45 Breaker Alarm Logic 3 45 Application Description 3 45 Operating Characteristic 3 45 Failed CB Trip Resistors Put in Service 3 46 Failed CB Close Resistors Put in Service 3 47 52A Contradicts Voltage 3 47 Current While Open 3 48 Trip While Op...

Page 72: ...nt Condition Detection 3 16 Figure 3 17 A Phase Failure to Trip Load or Line Charging Current Logic Scheme 1 3 19 Figure 3 18 Failure to Trip Load or Line Charging Current Logic Scheme 2 3 20 Figure 3 19 Trip and Close Resistor Thermal Protection Logic 3 24 Figure 3 20 A Phase Voltage Nulling Logic 3 25 Figure 3 21 Flashover Condition Logic Scheme 1 Six PTs 3 34 Figure 3 22 Flashover Condition Log...

Page 73: ...ervice Zones of protection are arranged to minimize service disruption when local primary protection operates When local protection fails to clear a fault backup protection clears the fault sometimes removing more equipment from service than the primary protection would have during correct operation Both local and remote backup protection are available to the system protection engineer Remote back...

Page 74: ...ortant Figure 3 2 illustrates the timing of the basic breaker failure scheme Calculate an absolute maximum fault clearing time based upon system stability and equipment I 2 t withstand considerations In the event of a breaker failure total time to clear all electrically adjacent breakers must be less than this absolute maximum The 62 timer pick up delay should be set to allow time for the protecte...

Page 75: ...ction schemes intended for these complex bus breaker arrangements The SEL 352 Relay is intended to protect a single breaker regardless of the bus breaker arrangement In breaker and a half and ring bus arrangements you must use an independent breaker failure relay for each breaker UHDNHU 2SHQV UHDNHU DLOV UHDNHU V ORVHG UHDNHU V ORVHG 0 Figure 3 3 Breaker Failure in a Complex Bus Breaker Arrangemen...

Page 76: ...o not need to connect the voltage inputs EXAMPLE BREAKER SPECIFICATIONS Figure 3 4 shows an example breaker arrangement Table 3 1 lists pertinent breaker line and system information that will be used to describe an application of the SEL 352 Relay for breaker failure protection Table 3 1 Example Line Breaker Information System Per Unit Bases 525 kV 100 MVA 2756 W 110 0 A Line length 100 miles Line...

Page 77: ...lementation of timers and latches that define the breaker failure scheme Schemes 2 and 3 are intended for single breaker applications and Schemes 1 4 and 5 are intended for multiple breaker applications although any of the schemes can be used in either single breaker or multiple breaker applications Use Table 3 2 to help select the scheme that best fits your application All five schemes are applic...

Page 78: ...caying dc current with a fairly long time constant The effect of this current upon the half cosine filter may be to create artificial phasor magnitudes large enough to prevent proper detection that the primary ac current actually has been interrupted This failure to detect interruption of the primary ac current may delay detection of overcurrent element dropout by some fraction of a cycle As a res...

Page 79: ...r failure protection for breaker and a half and ring bus breaker applications it also can be used for single breaker applications This scheme adds a set reset latch a rising edge latch and dropout timer and other logic to the logic of Scheme 5 to allow for a pulsed trip input The 62TT timer latches the trip input for time TTdo when the input is asserted for a quarter cycle The 62FC breaker failure...

Page 80: ...EL 352 1 2 Instruction Manual In both cases the LFA latch latches the 62FC timer After the 62FC timer latches trip signal dropout does not affect the breaker fail protection scheme Figure 3 6 A Phase Failure to Trip for Fault Logic Scheme 1 ...

Page 81: ...U 2SHUDWH 7LPH 6 4 SX UHDNHU 2SHUDWH 7LPH 7 URSRXW 7LPH 6DIHW 0DUJLQ 7LPH 6 7 75 3 77 5 0D LPXP UHDNHU 2SHUDWH 7LPH 4 77 77GR SX UHDNHU 2SHUDWH 7LPH 7 URSRXW 7LPH 6DIHW 0DUJLQ 7LPH UHDNHU DLOV DXOW 2FFXUV 3URWHFWLYH 5HOD 2SHUDWH 7LPH 3URWHFWLYH 5HOD 2SHUDWH 7LPH 0 D GMDFHQW UHDNHU 2SHUDWLQJ 7LPH Figure 3 7 Scheme 1 Breaker Failure Timing ...

Page 82: ...ons In a single breaker arrangement fault current causes the 50FTA element to assert immediately following fault inception and just prior to TRIPA input assertion If 50FTA is asserted when the relay receives the TRIPA input the 62FC timer starts and latches At this point trip signal dropout does not affect the breaker failure scheme If the 50FTA element remains asserted until the 62FC timer expire...

Page 83: ...ult current detector and the trip input to time for a breaker failure The logic shown in Figure 3 10 protects the system from a breaker failure during a fault This scheme is applicable to single breaker configurations When a fault occurs 50FTA asserts and the protective relay asserts the relay TRIPA input The AND gate output goes high and the 62FC timer starts If the TRIPA input and 50FTA element ...

Page 84: ... for at least a quarter cycle The 62TT timer output TTAD remains deasserted for time TTpu after which it asserts for time TTdo Relay Word bit FBF asserts if 50FTA asserts while the 62TT timer output is asserted The 62TT breaker failure timer resets when the 62TT timer dropout time TTdo expires This timing scheme provides consistent breaker failure clearing times between adjacent breakers This logi...

Page 85: ...r applications The 62FC timer starts as soon as the trip input asserts to provide consistent breaker failure clearing times between adjacent breakers This logic is necessary in multiple breaker applications because the fault current may be below the fault current threshold for one breaker until the adjacent breaker clears The logic shown in Figure 3 14 protects the system from a breaker failure du...

Page 86: ...d breaker Figure 3 14 A Phase Failure to Trip for Fault Logic Scheme 5 UHDNHU 6XFFHVVIXOO OHDUV UHDNHU 2SHUDWH 7LPH 7 URSRXW 7LPH 6DIHW 0DUJLQ 7LPH SX 75 3 7 DXOW 2FFXUV UHDNHU DLOV DXOW 2FFXUV 7 3URWHFWLYH 5HOD 2SHUDWH 7LPH UHDNHU 2SHUDWH 7LPH 7 URSRXW 7LPH 6DIHW 0DUJLQ 7LPH SX 75 3 3URWHFWLYH 5HOD 2SHUDWH 7LPH 0 D GMDFHQW UHDNHU 2SHUDWLQJ 7LPH Figure 3 15 Scheme 5 Breaker Failure Timing ...

Page 87: ...ic operates each time the breaker is called on to trip phase current greater than the 50FT setting Note that the 50FT setting for Scheme 4 must be greater than the maximum load current The 50FT element is the only overcurrent element that includes the subsidence current logic discussed earlier in this section The SEL 352 Relay does not discriminate between phase faults and ground faults Fault disc...

Page 88: ... including the SELOGIC control equations Modify these settings to meet your specific application needs Fault Clearing Pickup Time FCpu Schemes 1 2 3 and 5 Range 0 8191 cycles in 1 8 cycle steps Use SET ENTER to access the fault clearing pickup setting FCpu This setting determines the time delay before the 62FC timer expires and asserts the FCAD timer output The recommended setting for FCpu is the ...

Page 89: ... cycles in 1 8 cycle steps Use SET ENTER to access this setting It determines the duration of FBF assertion and therefore the duration of the trip output to your lockout relay Set the TTdo timer to one cycle or longer Setting Calculations This section contains setting calculations for an example SEL 352 Relay breaker failure application for fault current conditions Only settings necessary for this...

Page 90: ... on the simplicity of the scheme and the fact that the trip input may be deasserted once the breaker failure scheme initiates Fault Clearing Pickup Time FCpu For the example application all Zone 1 three phase faults must clear within 8 5 cycles to maintain system stability Thus total fault clearing time Tt is 8 5 cycles Nominal tripping time of local breakers Tbl and remote breakers Tbr is 2 cycle...

Page 91: ...one protection scheme at a time or customize the logic Both schemes require that the breaker is closed and that the relay receive a trip input The two schemes differ in how they determine a closed breaker condition Refer to Operating Characteristic for an operational description and logic diagram of each scheme Setting considerations for each scheme follow Scheme 1 and Scheme 2 are essentially the...

Page 92: ...protected breaker is nearly zero You can set the SEL 352 Relay to operate the 86 lockout relay if the relay 52A input is not deasserted after a settable time delay If any other breaker failure condition is detected based on assertion of the 86BFT bit the 52A logic of Scheme 2 is disabled Figure 3 18 Failure to Trip Load or Line Charging Current Logic Scheme 2 Setting Description Trip Inputs TRIPA ...

Page 93: ...he following equation Ic Vg Bc A primary where Vg is the line to ground voltage and Bc is the total line capacitive susceptance Multiply the line capacitive susceptance by the line length if it is specified on a per unit basis For the example application line charging current Ic is 350 A primary or 0 58 A secondary The 50LD element accuracy specification for a nominal 5 A relay is 0 025 A secondar...

Page 94: ...urrent Timers LPpu LDpu Schemes 1 and 2 Range 0 16383 cycles in 1 4 cycle steps Use SET ENTER to access the LPpu and LDpu timers These are breaker pending failure and failure timers respectively for the failure to trip load current breaker protection scheme The time delay of this protection scheme is typically set longer than fault current conditions due to lower current duties associated with thi...

Page 95: ... for the breaker failure timers described above The longer safety margin can allow for possible differences in expected and actual breaker auxiliary contact operating times The recommended settings for APpu and AFpu are two cycles longer than the LPpu and LDpu respectively The two cycles allow for a slow 52A response time Setting Calculations Pending Failure and Breaker Failure LPpu LDpu In our ex...

Page 96: ... bits must be used in control logic for energizing an external alarm retripping the breaker or asserting a lockout relay Refer to Lockout Relay Control in Section 4 Close Logic Other useful Relay Word bits are 26TFA 26TPA 26CFA and 26CPA which are the energy accumulation comparisons to the trip and close failure and pending failure settings Operating Characteristic The logic shown in Figure 3 19 i...

Page 97: ... SET G ENTER command to select either an automatic close CLOSE or manual close MCLOSE Any optoisolated input can be used to control these Relay Word bits For example if IN101 is to be used to indicate an A phase trip initiate from another relay set TRIPA IN101 If IN105 is used to indicate an automatic close from another device set CLOSE IN105 Repeat this for each programmable input The same input ...

Page 98: ...ltage difference across the breaker prior to voltage nulling When trip or close resistors are stuck in service a difference voltage is measured across the breaker pole Set the 87TH so it will pick up for stuck resistors Voltage Nulling Delay VNpu Range 0 00 240 00 minutes in 0 01 minute steps Use SET ENTER to access the VNpu setting This setting defines the delay before the system returns to a ste...

Page 99: ... to the acceptable angle of voltage nulling Kang is set in degrees and is compared to the absolute value of the angle difference between VAX and VAY When this limit is reached the voltage nulling remains at that threshold and the potential transformer disagreement PTD alarm asserts Tracking continues when the nulling drops below Kang again Select the Kang setting based on the accuracy of your pote...

Page 100: ...itively coupled voltage transformers CCVT Close Pending Failure 26CP Range 0 001 1000 000 J in 0 001 J steps 5 A 0 002 200 000 J in 0 001 J steps 1 A Use SET ENTER to access the 26CP setting and establish the threshold at which the relay asserts an alarm for pending close resistor failure Close Failure 26CF Range 0 010 1000 000 J in 0 001 J steps 5 A 0 002 200 000 J in 0 001 J steps 1 A Use SET EN...

Page 101: ...fuse condition exists Without the voltage supervision the thermal logic may misoperate Refer to the Controlled Closing logic in Section 4 Close Logic for 59L and 27D setting recommendations Setting Calculations Thermal Model of Trip and Close Resistors The output of the thermal models is a number in Joules calculated from either the heating or the cooling equation When power is applied greater tha...

Page 102: ...ng current times minimum resistor in circuit voltage across the breaker yields the minimum power for which 37OP should be required to assert PMIN secondary W 5 2 V 3 4 600 A 350 Consider 37OP element accuracy when selecting a setting Element accuracy is specified 37OP 2 25 mW 10 25 of measured power 2 63 of measured voltage 9 45 of measured current At 37OP pickup the maximum error is calculated DP...

Page 103: ... be raised if this condition exists Overpower Pickup OPpu For the example protected breaker we select an OPpu setting as follows 62OP 3 cycles If you are unsure of the amount of time necessary to ride through the transients use the SEL 352 Relay event report to see how long the 87TH and 37OP bits are asserted after a switching operation Refer to Section 10 Event Reports and SER for a description o...

Page 104: ...J primary per breaker pole TSSEC 375 75 SULPDU 0 5 37 J secondary Thermal failure settings should prevent a normal trip operation from adding enough energy to damage resistors after thermal failure elements assert Trip Pending Failure 26TP Setting the relay conservatively we select the trip resistor pending failure element 26TP to assert when the thermal model reaches 65 percent of the maximum the...

Page 105: ... over the following conditions can be used to detect the failure One per unit system voltage can be measured across the breaker pole before the flashover occurs Once the flashover starts voltage drops and current flows Because these two criteria may also describe breaker close operations the flashover protection scheme should be disabled during breaker operations and for several cycles after The r...

Page 106: ...tion Logic Scheme 1 Six PTs Scheme 2 Flashover Three Potential Transformers Scheme 2 uses the voltage on one side of the circuit breaker and the current through the breaker to detect flashover This logic also needs the breaker monitor input Figure 3 22 Flashover Condition Logic Scheme 2 Three PTs ...

Page 107: ...ker failure initiate logic inputs TRIPA TRIPB TRIPC with physical inputs Both flashover protection schemes use these three programmable inputs Any optoisolated input can be used to control these Relay Word bits For example if IN101 is used to indicate an A phase trip condition from another relay set TRIPA IN101 If IN104 is used to indicate breaker status set 52AA IN104 Repeat this for each program...

Page 108: ...aker VMIN was calculated as VMIN 4 3 V secondary The accuracy specification of the 87FO element is 0 09 V 5 of settings so 87FO maximum error 0 09 V 0 05 4 3 V 0 3 V secondary To ensure that 87FO asserts when a resistor is stuck in service 87FO 4 3 0 3 4 0 V secondary A recommended setting is 87FO 4 V If you use Scheme 2 accept the default 87FO setting or use the 87FO Relay Word bit in other custo...

Page 109: ...es of the breaker Scheme 2 is designed for applications where voltages are only available on one side of the breaker but the breaker status input is also necessary Flashover Pending Failure FPpu Range 0 16383 cycles in 1 4 cycle steps Use SET ENTER to access the FPpu setting and determine the delay before the 62FP timer expires and asserts the timer output FPAD Assertion of this output results in ...

Page 110: ...flashover logic uses the load current detector 50LD setting but you set the value for this setting along with the load current protection logic Use SET ENTER to access the 50LD setting and establish the level of current above which the 62FP and 62FF flashover timers will start if the breaker is open Set the 50LD in settings for the load current protection logic based on the same criteria as outlin...

Page 111: ...ls and determine which signal the relay will use in the current unbalance logic Any optoisolated input can be used to control these Relay Word bits For example if IN101 is used to indicate a close condition from another device or control switch set CLOSE IN101 The programmable input settings are actually SELOGIC control equations Use any combination of Relay Word bits according to the SELOGIC cont...

Page 112: ...g and define the close input timer pickup time Set the UCpu timer higher than the nominal closing time of the protected breaker The timer may be set the same as the SlowCl setting A recommended setting is 125 percent to 150 percent of timing tests For the example breaker assuming a closing time of four cycles we select a setting UCpu 6 cycles The margin in this case an additional two cycles allows...

Page 113: ... three phase current magnitudes Lower unbalance ratio settings make the relay more sensitive to current unbalance An example follows Assume 46UB 8 and 1 per unit current flows in each breaker pole upon closure If A phase and B phase breaker poles close while the C phase pole remains open the relay makes the following comparisons Ia 8 I I I pu 1 c b a Ia 8 0 1 1 pu 1 Ia 8 current unit per 2 pu 1 Ib...

Page 114: ...ad between the open conductor and the relay the loading on the open conductor phase will be greater than zero at the relay The relay can still detect the open conductor if this tapped load is less than the specified percent of the total load as seen by the relay The following settings represent the most sensitive pole discordance and open conductor detection The pole discordance logic has a pendin...

Page 115: ... use pressurized air or gas as a dielectric and to help interrupt the electrical arc when tripping If the amount of gas pressure is insufficient the breaker may fail Many breakers that rely on air or gas for such applications have pressure monitors so the breaker will not attempt to operate under possible failure conditions These pressure monitors can be connected to the SEL 352 Relay for sophisti...

Page 116: ...quation criteria in Section 4 Relay Logic Two inputs are used to monitor two separate breaker gas pressure thresholds A pressure device that monitors the breaker should apply control voltage to the SEL 352 Relay input when the pressure drops below the preset value The high threshold asserts LOD2 and the low threshold asserts LOD1 As pressure drops below the high threshold LOD2 the L2pu timer start...

Page 117: ...LODPF Set L2pu based on the preset pressure threshold and the minimum amount of pressure necessary to trip the breaker The pending failure bit LODPF should have enough time to trip the breaker before the pressure drops below the second threshold For example a breaker that has a nominal pressure of 400 psi and pressure level thresholds at 80 percent and 50 percent may be set to trip the breaker aft...

Page 118: ...RS Failed CB close resistors put in service MCC MOD contradicts current 52ACV 52A contradicts voltage ST Slow trip CWO Current while open SC Slow close TWO Trip while open PTD Potential Transformers Disagree BDNC Breaker did not close Set a programmable output contact to close for indication when the relay detects a breaker alarm condition For example set OUT101 BALRM The following items explain c...

Page 119: ...resistor thermal failure bit asserts and 86RS bit or close input assertion occurs Figure 3 29 Failed CB Close Resistors Put in Service 52A Contradicts Voltage The 52ACV bit asserts if the 87TH overvoltage bit picks up when a 52A bit asserts as long as a trip or close operation has not occurred for five cycles Figure 3 30 52A Contradicts Voltage ...

Page 120: ... Figure 3 31 Current While Open Trip While Open TWO asserts if a trip input asserts while the 87FO element for that phase is picked up Figure 3 32 Trip While Open Breaker Did Not Close BDNC asserts if the 52A status still indicates an open breaker three seconds after the close output element CCA asserts When the breaker status finally indicates a closed breaker the three second timer resets Figure...

Page 121: ...Figure 3 34 Current After MOD Trip MOD Contradicts Current MCC asserts if any phase 50MD element is picked up and the MOD Status MODST input does not assert indicating that the MOD is open Figure 3 35 MOD Contradicts Current Slow Trip ST asserts if the A B or C phase 50MN element is still picked up when SlowTr time expires following the A B or C phase trip input assertion respectively The SlowTr t...

Page 122: ...ective phase close input assertion The SlowC1 timer resets when 52AA asserts Figure 3 37 Slow Close Potential Transformers Disagree The PTD bit asserts if the voltage nulling constant K see Voltage Nulling exceeds the Kmag or Kang setting Figure 3 38 Potential Transformers Disagree To disable any of the above breaker monitors remove the element from the BALRM setting list ...

Page 123: ... Slip Frequency for Manual Close 25SM Scheme 2 4 11 Maximum Manual Close Angle 25AM Scheme 2 4 11 Synchronizing Phase SYNCP Scheme 2 4 11 Synchronism Timer Dropout SYNCdo Scheme 2 4 12 Point On Wave Timer Pickup PCApu PCBpu PCCpu Scheme 2 4 12 Zero Crossing Timer Pickup ZCApu ZCBpu ZCCpu Scheme 2 4 12 Controlled Close Output Timers CLSA CLSB and CLSC Scheme 2 4 12 Setting Calculation 4 13 Point On...

Page 124: ...ck Diagram 4 2 Figure 4 4 Synchronism Logic 4 3 Figure 4 5 Synchronism Controlled Close Logic 4 4 Figure 4 6 Trapped Charge Detection Logic A Phase 4 5 Figure 4 7 Voltage Zero Crossing Detection Logic X Side 4 6 Figure 4 8 Point On Wave Controlled Close Logic A Phase 4 7 Figure 4 9 Controlled Close Output Timers A Phase 4 8 Figure 4 10 Point On Wave Timer Calculation 4 13 Figure 4 11 Circuit Break...

Page 125: ...em can tolerate a single pole condition Use Scheme 2 for synchronized and point on wave closing when PTs are available on both sides of your breaker Synchronized closing is used when both sides of a breaker are live The logic determines when the two sides are in phase and closes the breaker at that time to minimize transients Point on wave closing is used when one side of the breaker is live and t...

Page 126: ...gic is shown in Figure 4 3 Point on wave closing requires separate close coil circuits for each pole When you close all breaker poles at the same time differences in where poles close on the voltage waveform can cause transients that can cause system damage or degradation This scheme detects various line conditions and voltage zero crossings to determine the optimum time to close each pole Synchro...

Page 127: ...LES SS SS 25C 25M 25T 25SC 25SM M3520008 52AA 52AB 52AC VnX VnY Figure 4 4 Synchronism Logic Synchronism check output SCTD is combined with the point on wave outputs CTA CTB and CTC on a per phase basis to form outputs CCA CCB and CCC respectively Figure 4 9 illustrates this combination for the A phase logic Note that RCLS reset close resets the close timers if any of the TRIPn inputs assert If yo...

Page 128: ...e closing depends greatly on breaker closing consistency Breakers vary in tolerance depending on breaker type and manufacturer Consult the breaker manufacturer for close time tolerances Breaker closing times vary according to ambient temperature changes control voltage level age of the breaker and time since last operation The SEL 352 controls none of these factors but calculates the instant to is...

Page 129: ...d variation of 4 ms and it operates at the edge of its error band the breaker will close at a zero crossing instead of a peak The voltage difference across the breaker will be equivalent to the amount of trapped charge This closing scenario is still more desirable than random closing If the relay detects a positive trapped charge on one of the phases it asserts the XPT X side positive trapped char...

Page 130: ...ed average is compared to the 27D setting A measured average larger than the 27D setting indicates positive trapped charge An average less than the negative of the 27D setting indicates negative trapped charge Figure 4 7 shows the X side voltage zero crossing detector logic The Y side logic is similar The logic determines whether there is a positive or negative going zero crossing Outputs of this ...

Page 131: ...Output Timers These timers are initiated by the zero crossing and point on wave controlled close logic You cannot modify the output timer logic shown in Figure 4 9 however you can turn the timers off The CLSA CLSB and CLSC settings pick which outputs have timer logic associated with them defaulting to OUT301 OUT302 and OUT303 respectively The pickup times of timers in this figure are accurate to 2...

Page 132: ...als CLOSE MCLOSE Use the SET G ENTER command to associate CLOSE or MCLOSE with a physical input control bit or remote bit CLOSE and MCLOSE indicate a close initiation from another device or a manual close input condition Use any optoisolated input to control these Relay Word bits For example if IN101 is to be used to indicate a close initiation set CLOSE IN101 The input settings are actually SELOG...

Page 133: ... setting CLSLOG 2 Set CLSLOG CUSTOM to modify the close logic When set to CUSTOM all settings are shown including the SELOGIC control equations Use these settings for a modified close logic or for an entirely different application Close Dropout CLSdo Range 0 16383 cycles in 1 4 cycle steps Set the close dropout time CLSdo to a value that makes certain the breaker close coil has been energized and ...

Page 134: ... close coil energization This 2 67 cycles is less than the 3 cycle requirement for the system and in this case the voltage transients decay in 1 cycle which is less than the stagger times of 1 33 cycles between phases Maximum Slip Frequency for Control Close 25SC Scheme 2 Range 0 005 0 500 Hz in 0 001 Hz steps Two synchronizing elements provide separate automatic and manual close operation control...

Page 135: ...e setting allowed for 25AM so do not set 25SM to its highest value just to desensitize the synchronism supervision If 25SM is set to 0 5 the minimum angle for 25AM will be 16 Maximum Manual Close Angle 25AM Scheme 2 Range 32 25SM to 90 min 1 in 0 1 steps Two synchronizing elements are provided to separate automatic and manual close operation control Set 25AC to the maximum allowable angle differen...

Page 136: ...f the fast outputs is used The contact closes at the point on the wave that the logic designates Positive and negative peak closing logic uses these timers The logic closes the output contact at a positive peak for logic detection of a positive trapped charge and it closes the output contact at a negative peak for a negative trapped charge These timers provide the delay for the breaker close time ...

Page 137: ...int to another point on the wave For example with a Tclose nominal closing time of the breaker time of 33 ms 2 cycles and a setting of PCApu 0 the breaker will close at the appropriate peak 2 cycles after the output contact closes However if the Tclose time is 29 ms 1 75 cycles the breaker would close 1 4 cycle before the peak To set PCApu for breaker and offset times that are not multiples of 1 c...

Page 138: ... output contact at a negative going zero crossing when it detects no trapped charge The positive going zero crossing element is not used ZCApu provides the delay for the breaker close time and any offset to move the closing point to another point on the wave For example with a Tclose nominal closing time of the breaker time of 33 ms 2 cycles and a setting of ZCApu 0 the breaker will close at the z...

Page 139: ...ip coil failed auxiliary contact low battery dc and open trip coil circuit are all possible conditions that may cause a breaker not to open Some of these conditions will require that all adjacent breakers be opened but some of the conditions may only require another trip signal Some breakers have multiple trip coils that are energized with a retrip signal A retrip signal provides partial redundanc...

Page 140: ...soon as one of the trip initiation inputs is received and current is flowing through the breaker a timer is started When the timer expires and the current has not dropped out the retrip outputs will assert Again as in Scheme 1 set the retrip bits to an output contact Modify the default logic by setting RTPLOG CUSTOM When set to CUSTOM all settings are shown including the SELOGIC control equations ...

Page 141: ...ator isolates the failed breaker with manual disconnects 3 Operator manually resets the lockout relay 4 Operator restores the system by closing breakers Example 2 1 Relay trips all adjacent breakers through a lockout auxiliary relay 2 Relay trips motor operated disconnects to isolate the breaker 3 Relay electrically resets the lockout relay 4 Automated reclosing restores the system The two example...

Page 142: ...ing waiting for the trip conditions to reset After the trip conditions reset and the M2 timer has expired the 86BFT trip output is reset deasserted After five seconds of the reset condition no trip and no current the 86RS output asserts to reset a lockout relay or provide a safe to reset indication The M1 timer deasserts the 86RS output in one second If a thermal failure of a trip or close resisto...

Page 143: ...er has expired the MOD is tripped with the MDT output or it can be used to indicate a safe to disconnect condition At the same time MDT asserts the M3 timer starts timing waiting for the MOD to open or the current to drop below the 50LD setting After this occurs and the M3 timer expires the 86BFT trip output is reset deasserted After five seconds of the reset condition no trip and no current the 8...

Page 144: ...ontrol voltage is applied to IN101 the SEL 352 Relay determines that the MOD is closed The input settings are actually SELOGIC control equations Use any combination of Relay Word bits according to the SELOGIC control equation criteria in Section 5 Control Logic Breaker Failure Trip Mask M86T Select which failures trip the lockout relay by setting the M86T equation accordingly M86T is the mask crit...

Page 145: ... directly Use the 86RS output to reset a lockout relay or indicate OK to reset lockout relay Use the MDT output to trip an MOD to isolate the failed breaker or use it for a safe to disconnect indication Timer 2 M2pu Range 0 8191 cycles in 1 8 cycle steps Set M2pu long enough for breaker isolation and for the current to drop below the 50MD setting Take into account the lockout relay operate time th...

Page 146: ...act for external indication and control For example the 86BFT bit is the output of the lockout relay control logic To use this logic program an output contact to follow the 86BFT bit OUT101 86BFT Note that all outputs will return to their de energized state SELOGIC control equation 0 for approximately 1 second when settings are saved ...

Page 147: ... Setting Groups SS1 SS2 5 13 TRIP 5 13 CLOSE MCLOSE 5 13 Local Control Switches LB1 LB16 5 13 Remote Control Switches RB1 RB16 5 14 Remote Bit Application 5 14 Remote Bit States Not Retained When Power Is Lost 5 15 Remote Bit States Retained When Settings Changed or Active Setting Group Changed 5 15 SELOGIC Control Equation Set A 5 15 Timers 62T1A 62T1B and 62T1C 5 15 Latch Control Switches 5 16 S...

Page 148: ...igure 5 2 SELOGIC Control Equation Operators Example Diagrams 5 9 Figure 5 3 Analog Comparison Logic Examples 5 10 Figure 5 4 Example Operation of Optoisolated Inputs IN101 and IN102 5 11 Figure 5 5 Remote Control Switches Drive Remote Bits RB1 Through RB16 5 14 Figure 5 6 62T1A Timer Logic 5 15 Figure 5 7 Latch Logic 5 16 Figure 5 8 EN Target LED Logic 5 19 Figure 5 9 PF Target LED Logic 5 19 Fig...

Page 149: ...luctuates the relay tracks to that frequency to determine processing intervals With NFREQ 50 the relay tracks over the range of 45 55 Hz With NFREQ 60 the relay tracks over the range of 55 63 Hz If the system frequency goes beyond the tracking range the relay stops tracking at that boundary until the system frequency returns The tracking frequency follows the A phase voltage frequency of the volta...

Page 150: ...s The decision or output of the fixed scheme logic is used by the Trip and Close Logic The decision or output of the Trip and Close Logic is the assertion or deassertion of Relay Word bits The following discussion describes the Relay Word Up to this point the relay has not done anything physical It has processed data but not acted on the information To program the relay to open or close an output ...

Page 151: ...C YNTB YPTB YNTA YPTA 12 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB16 RB15 RB14 RB13 RB12 RB11 RB10 RB9 LB8 LB7 LB6 LB5 LB4 LB3 LB2 LB1 15 LB16 LB15 LB14 LB13 LB12 LB11 LB10 LB9 16 BCW 50R 50RC 50RB 50RA 17 IN106 IN105 IN104 IN103 IN102 IN101 18 IN208 IN207 IN206 IN205 IN204 IN203 IN202 IN201 19 IN216 IN215 IN214 IN213 IN212 IN211 IN210 IN209 20 IN308 IN307 IN306 IN305 IN304 IN303 IN302 IN301 21 IN316 IN3...

Page 152: ... Dielectric Protection Elements 48 LT3D LT3 LT2D LT2 LT1D LT1 Controlled Close Elements 0 7 5 5 5 5 5 5 5 6 3 3 6 7 6 7 6 1 7 6 1 7 7 7 0 7 3 1 3 3 1 3 3 3 1 3 3 3 1 6 1 1 7 7 7 1 3 1 Breaker Alarm Elements 53 CAMT BPF BDNC TWO CWO 52ACV FCRS FTRS 54 BALRM PTD SC ST MCC Circuit Breaker Retrip Elements 55 LRTCR LRTCS LRTBQ LRTBR LRTBS LRTAQ LRTAR LRTAS 56 RT3D RT3 RT2D RT2 RT1D RT1 LRTCQ SELOGIC Co...

Page 153: ...tion 7 Setting the Relay for a list of the predetermined SELOGIC control equation settings that may be customized SELOGIC control equation settings are written in Boolean algebra logic combining Relay Word bits or Analog Compares together with different operators Analog Compares are discussed later in this section Parentheses can also be used in SELOGIC control equation settings Use more than one ...

Page 154: ...ere NAME is one of the valid analog names see below OP is an arithmetic operator VALUE is either a fixed numerical value or another NAME scaled in the same units Examples of Analog Compare statements are IA 2 2 or VAX VAY An equation using an Analog Compare might be written as SAA IA 2 2 50LD for example In the Limitations of SELOGIC Control Equations discussion that follows an Analog Compare coun...

Page 155: ...00 kA primary 2 TRPA TRPB TRPC CLSA CLSB CLSC Total number of trip or close operations 0 65535 0 Limitations of SELOGIC Control Equations Any single SELOGIC control equation setting is limited to 17 Relay Word bits that can be combined together with the SELOGIC control equation operators listed in Table 5 2 If this limit must be exceeded use a SELOGIC control equation variable SnVm as an intermedi...

Page 156: ...ncluded in these limitations each such setting counts as one element Table 5 4 Maximums for SELOGIC Control Equations Group Setting Class Global Setting Class Relay Word bits per Equation 17 17 Relay Word bits per Setting Class including Rising or Falling Edge Operators 550 50 Equations per Setting Class 258 15 SELOGIC Control Equation Set A Example Objective Set all 38 digital inputs to trigger a...

Page 157: ...lements and Logic top to bottom Relay Elements and Logic see the Relay Word in Appendix F or Table 5 1 Processing Interval Targets Relay Word Rows 0 and 1 1 8 cycle General Elements Fixed Analog Comparisons Relay Word Rows 2 11 1 8 cycle General Elements Optoisolated Inputs Relay Word Rows 17 21 1 8 cycle General Elements Input Assignment Variables Relay Word Rows 22 23 1 8 cycle General Elements ...

Page 158: ...lose Elements Row 49 52 1 4 cycle Breaker Alarm Elements Rows 53 54 1 4 cycle Circuit Breaker Retrip Elements Rows 55 56 1 4 cycle SELOGIC Control Equation SET B Elements Rows 57 65 1 4 cycle Logic Output Elements Rows 66 68 1 4 cycle 86BF Trip and Reset Elements Rows 69 72 1 8 cycle Event Report Trigger MER Row 71 1 8 cycle Contact Output Elements and Display Points Rows 73 79 1 8 cycle Sequentia...

Page 159: ...it The analog comparison process has been expanded in this relay through the use of SELOGIC control equation Analog Compares discussed earlier in this section OPTOISOLATED INPUTS Relay Word bits IN101 through IN316 follow optoisolated inputs IN101 through IN316 respectively if the input output board configuration supports them Section 2 Installation gives a description of the optional I O boards t...

Page 160: ...atic close input MCLOSE Manual close input The inputs assignment variables are SELOGIC control equations Set them to NA if they are not used Set them to follow a specific input or set them to a combination of elements Some examples follow MODST NA Always a logical 0 CLOSE IN101 Input 101 asserts automatic closing MCLOSE IN102 CCMD Input 102 asserts manual closing or the CCMD bit asserts manual clo...

Page 161: ...d to indicate that an external device has initiated closing Two close variables are provided to separate automatic and manual close initiation LOCAL CONTROL SWITCHES LB1 LB16 Local control switches are used largely for the same purposes as the remote control switches but are operated from the front panel interface rather than from a serial port The local control switches replace traditional panel ...

Page 162: ...itch can be put in one of the following three positions via the serial port commands shown Begin with the CON n Control Remote Bit n command then specify SRB n Set Remote Bit n ON logical 1 CRB n Clear Remote Bit n OFF logical 0 PRB n Pulse Remote Bit n MOMENTARY logical 1 for an eighth cycle Remote Bit Application With SELOGIC control equations the remote bits can be used in applications where yo...

Page 163: ...ition corresponding remote bit is asserted to logical 1 before a setting change or an active setting group change it comes back in the ON position corresponding remote bit is still asserted to logical 1 after the change SELOGIC CONTROL EQUATION SET A The SEL 352 Relay has two sets of logic reserved for additional flexibility Set A and Set B provide timers latches and generic variables for customiz...

Page 164: ...S asserts L1AQ will only deassert when L1AR asserts When both L1AR and L1AS are asserted L1AQ resets deasserts SELOGIC Control Equation Variables Three variables are available for application flexibility Set A variables SAA SAB and SAC may be used individually or as the same function for each individual phase Use these variables to make larger SELOGIC control equations to provide a monitoring poin...

Page 165: ...sed individually or as the same function for each individual phase Use these variables to make larger SELOGIC control equations to provide a monitoring point for testing or to create a specific event triggering point OUTPUT CONTACTS All contact output elements represent a programmable output contact These contacts will only operate according to a corresponding SELOGIC control equation These elemen...

Page 166: ...when power is cycled Refer to Figure 5 8 through Figure 5 20 for logic diagrams for each target LED Table 5 7 Target LED Illumination Conditions Target LED Conditions for Illumination Latched Row 0 top row EN Normal Operation No PF Breaker Pending Failure Detected Yes 86BFT Lockout Relay Trip Yes 86RS Lockout Relay Reset Yes TRIP Breaker Trip Received Yes CLOSE Breaker Close Received Yes 52A 52A S...

Page 167: ...henever a failure is pending based on various pending failure logic elements in the relay The relay can detect a pending failure for the following conditions Load current LPF Trip resistor thermal condition 26TP Close resistor thermal condition 26CP Flashover FOPF Current unbalance UBPF Loss of Dielectric LODPF If any one of the logic pending failure bits asserts the PF target LED latches until th...

Page 168: ...AR R command is issued to one of the serial ports Figure 5 10 shows the 86BFT target LED logic Figure 5 10 86BFT Target LED Logic 86RS Target LED The relay illuminates and latches the 86RS target LED whenever the breaker failure lockout relay reset element 86RS in Relay Word Row 69 asserts This bit is typically assigned to an output contact to reset a lockout relay after timing toward a breaker fa...

Page 169: ... illuminates and the TRIP target LED extinguishes because of the processing order For simplicity this is not represented in the logic diagram CLOSE Target LED The relay illuminates and latches the CLOSE target LED whenever one of the close elements CLOSE MCLOSE assert The CLOSE target LED latches until the close conditions deassert a trip condition asserts the Target Reset button is pushed or the ...

Page 170: ...lved with the breaker failure The failures during a FAULT LOAD FLASH UBAL and THERM include phase indication When one of these conditions exists according to Figure 5 15 the phase s involved will target accordingly A phase logic is shown but B and C are similar Figure 5 15 A Phase Target LED Logic These phase targets latch until the condition goes away and either the Target Reset button is pushed ...

Page 171: ...he LOAD target LED when the output element for breaker failure while tripping load or line charging current LBF asserts The target LED latches until the condition goes away and either the Target Reset button is pushed or the TAR R command is issued to one of the serial ports Figure 5 17 shows the LOAD target LED logic Figure 5 17 LOAD Target LED Logic UBAL Target LED The relay illuminates the UBAL...

Page 172: ...pushed or the TAR R command is issued to one of the serial ports Figure 5 19 shows the FLASH target LED logic Figure 5 19 FLASH Target LED Logic THERM Target LED The relay illuminates and latches the THERM target LED when one of the output elements for trip or close resistor thermal failure TTF CTF asserts The target LED latches until the condi tion goes away and either the Target Reset button is ...

Page 173: ...ns 6 5 Average Operation Times 6 5 Last Operation Times 6 5 Total Energy 6 5 Total Current 6 5 Percent Wear SEL 352 2 Relay 6 5 Breaker Alarms 6 7 Selecting Alarms 6 7 Total Count 6 7 Clearing the Breaker Monitor Report 6 8 Preloading the Breaker Monitor Report SEL 352 2 Relay 6 8 Breaker Resistor Thermal Monitor 6 8 Resetting the Thermal Monitor 6 8 Status Monitor 6 8 Channel Offset 6 9 Master Of...

Page 174: ...Monitoring Date Code 20010731 SEL 352 1 2 Instruction Manual TABLES Table 6 1 a and K Constants for the Three Regions in Figure 6 1 6 7 Table 6 2 Self Test Summary 6 11 FIGURES Figure 6 1 Breaker Maintenance Curve 6 6 ...

Page 175: ...mn labels as a header The values displayed include phase to neutral and phase to phase voltages and currents in primary kilovolts and amperes and real and reactive power in megawatts and megavars MET ENTER EXAMPLE BUS B BREAKER 3 Date 02 01 96 Time 15 15 24 640 A B C AB BC CA I A 202 198 197 349 339 344 VX kV 134 1 133 7 133 5 231 5 230 9 231 9 VY kV 134 0 133 8 133 6 231 5 230 9 231 9 dV kV 0 371...

Page 176: ...d close energy Trip and close current Breaker contact wear percentage SEL 352 2 Relay Numerous alarms Use the BRE breaker monitor report or BRE S breaker monitor summary report commands to display breaker operation information on a per pole basis a breaker operation summary and a listing of breaker alarms The operations and summary are stored in nonvolatile memory so the relay retains these if pow...

Page 177: ...l Energy MJ 0 03 0 01 0 01 0 02 0 01 0 00 Total Current A 5472 5454 5457 1248 1249 1236 Percent Wear 100 100 100 BREAKER ALARMS ALARM TOTAL COUNT Failed CB trip resistors put in service FTRS 0 Failed CB close resistors put in service FCRS 0 52A contradicts voltage 52ACV 1 Current while open CWO 0 Trip while open TWO 1 CB did not close BDNC 0 Current after MOD trip CAMT 0 MOD contradicts current MC...

Page 178: ...hever occurs first If the breaker operating time exceeds both the SlowCl and SlowTr settings the relay reports the larger of these two settings with an appended plus symbol B and C phases are similar Mechanical Operate Time The relay defines mechanical operating time per phase The A phase tripping time is measured from the assertion of TRIPA to the dropout of 52AA The mechanical operating time for...

Page 179: ...nts Calculation of the average continues for all operations until clearing of the breaker monitor report Last Operation Times The relay reports the last trip and close operation for each pole These electrical and mechanical operation times provide the necessary information for fast comparisons of the averages to determine if a breaker is slowing down Any operation longer than the longest SlowCl or...

Page 180: ...um currents and the third for high currents This flexibility accommodates mechanical wear resulting from low current breaker interruptions and electrical wear resulting from medium and high currents KASP1 is kA Set Point 1 while COSP1 is Close Open Set Point 1 The relay will not accept the settings unless KASP3 KASP2 KASP1 and COSP1 COSP2 COSP3 UHDNHU RQWDFW HDU N QWHUUXSWHG SHU 2SHUDWLRQ 1 X P E ...

Page 181: ...ion The BALRM setting indicates which alarms are reported You can use the BRE S command to display the summary and breaker alarms independent from the breaker operations Selecting Alarms Select breaker alarms with the BALRM setting The default setting shown below includes all possible alarms See Breaker Alarm Logic in Section 3 Breaker Logic for default setting descriptions and logic diagrams Use ...

Page 182: ...resistor failure threshold 26CF or 26TF For example if the B phase open resistor ORB contains 1 0 J of internal heat and the trip failure threshold 26TF setting is 2 0 J the HEA command displays the ORB resistor heat as 0 50 The thermal report headings use a simple format ORA heads the A phase opening resistor column CRA the A phase closing resistor column and so on for B phase and C phase HEA ENT...

Page 183: ...alues against fixed limits If a voltage measurement is outside the limits the relay declares a warning or failure See Section 3 Breaker Logic for the limits Temperature The relay measures internal temperatures TEMP within itself If the relay measures a temperature less than 40 C or greater than 85 C the relay declares a warning If the relay measures a temperature less than 50 C or greater than 100...

Page 184: ...warning for the test I O Boards The relay checks the values in the I O board ID register against a stored value If any values differ the relay declares an I O_BRD failure There is no warning state for this test Use the INITIO ENTER command to reset the stored value for the new I O configuration The following is an example of the status report EXAMPLE CIRCUIT BREAKER Date 11 09 96 Time 14 09 49 628...

Page 185: ...upply 14 40 15 60 Vdc 14 00 16 00 Vdc 15 V Power Supply 14 40 15 60 Vdc 14 00 16 00 Vdc Temperature 40 85 C 50 100 C RAM NA Cannot READ WRITE Flash ROM NA Bad Checksum A D NA Slow Conversion Critical RAM NA Bad Checksum EEPROM NA Bad Checksum IO_BRD NA Incorrect I O Board Value The relay continuously runs a variety of self tests Some tests have warning and failure states others only have failure s...

Page 186: ......

Page 187: ...d 7 5 Date Format DATE_F 7 5 Settings Descriptions 7 5 Default Settings 7 14 Default Scheme SELOGIC Control Equations 7 18 Fault Current Protection Scheme 1 7 18 Fault Current Protection Scheme 2 7 19 Fault Current Protection Scheme 3 7 19 Fault Current Protection Scheme 4 7 20 Fault Current Protection Scheme 5 7 20 Load Current Protection Scheme 1 7 21 Load Current Protection Scheme 2 7 21 Therma...

Page 188: ...ET Commands 7 1 Table 7 2 SET Command Editing Keystrokes 7 2 Table 7 3 SET R Report Command Settings 7 6 Table 7 4 SET Command Settings 7 6 Table 7 5 SET G Global Command Settings 7 11 Table 7 6 SET P Port Command Settings 7 14 Table 7 7 SET T Command Settings 7 14 Table 7 8 SET Command Categories 7 27 ...

Page 189: ...ts are at the end of this section SETTINGS CHANGES VIA THE FRONT PANEL The relay front panel SET pushbutton provides access to the Relay Global and Port settings only Thus the corresponding Relay Global and Port settings sheets that follow in this section can also be used when making these settings via the front panel Refer to Section 9 Front Panel Interface for information on front panel settings...

Page 190: ...sion without saving changes The relay checks each entry to ensure that it is within the setting range If it is not an Out of Range message is generated and the relay prompts for the setting again When all the settings are entered the relay displays the new settings and prompts for approval to enable them Answer Y ENTER to enable the new settings If changes are made to Global SER or Port settings s...

Page 191: ...e for the breaker to open Topen is for record keeping only Enter the manufacturer s specification timing test results your best guess for breaker tripping times or results from previously recorded actual operations The trip time is considered as the time between the trip coil circuit energization and the breaker opening An open breaker typically is indicated by an auxiliary contact or the current ...

Page 192: ...ent transformer ratio CTR setting is based on the actual CT ratio of the current inputs The setting is entered as a ratio to 1 For example if the current transformers that are connected to the SEL 352 Relay are connected on a tap of 600 5 set CTR to 120 Note that if the CTs are connected in a delta configuration assuming the same tap set the CTR to 120 which equals 204 The CTR setting is used for ...

Page 193: ...if necessary For example if you suspect your close operation to take approximately 13 cycles you may want to trigger an event for the CLOSE input initiation the close output CCA and a timed delayed CLOSE initiation to be sure the relay actually sees the breaker closing LER 15 T1A CLOSE T1pu 14 MER CLOSE CCA T1AD CLOSE triggers the first 15 cycles and CCA or T1AD triggers the second 15 cycles Globa...

Page 194: ...igger conditions SER1 2 and 3 are provided to separate the potentially long list of elements Any Relay Word bit or alias Table 7 4 SET Command Settings Setting Name Description Setting Range Labels See Section 10 Event Reports and SER RELID Relay Identifier text label 17 characters TRMID Terminal Identifier text label 39 characters Breaker Monitor and Misc Settings See Section 10 Event Reports and...

Page 195: ...cyc 0 125 cyc steps Load Current Logic Settings See Section 3 Breaker Logic 50LD Load Current Detector 0 1 45 0 A sec 5 A Inom 0 02 9 00 A sec 1 A Inom 0 01 A steps 50N Ground Current Detector not used in default logic 0 1 45 0 A sec 5 A Inom 0 02 9 00 A sec 1 A Inom 0 01 A steps LDLOG Load Current Scheme Selection OFF 1 2 CUSTOM LPpu 62LP Pending Failure Pickup Time used in Schemes 1 and 2 0 1638...

Page 196: ...000 0 J sec 5 A Inom 0 002 200 0 J sec 1 A Inom 0 001 J steps 26CF Close Resistor Failure Energy level determines the failure threshold for the thermal model output 0 01 1000 0 J sec 5 A Inom 0 002 200 0 J sec 1 A Inom 0 001 J steps 26TP Trip Resistor Alarm Energy is not used in the default logic 0 01 1000 0 J sec 5 A Inom 0 002 200 0 J sec 1 A Inom 0 001 J steps 26TF Trip Resistor Failure Energy ...

Page 197: ...teps UFpu 62UF Breaker Failure Pickup Time determines if unbalance conditions indicate a failure 0 16383 cyc 0 25 cyc steps Dielectric Monitor Logic Settings See Section 3 Breaker Logic DELOG Loss of Dielectric Logic enable OFF ON CUSTOM L2pu 62L2 Leak Timer Pickup Time defines a rapid loss of pressure versus a slow leak 0 16383 cyc 0 25 cyc steps Controlled Close Logic Settings See Section 5 Cont...

Page 198: ...mer Pickup Time for A phase peak closing 0 00 40 00 ms 0 01 ms steps PCBpu 62PCB Timer Pickup Time for B phase peak closing 0 00 40 00 ms 0 01 ms steps PCCpu 62PCC Timer Pickup Time for C phase peak closing 0 00 40 00 ms 0 01 ms steps ZCApu 62ZCA Timer Pickup Time for A phase zero crossing closing 0 00 40 00 ms 0 01 ms steps ZCBpu 62ZCB Timer Pickup Time for B phase zero crossing closing 0 00 40 0...

Page 199: ...trol equation Output Contacts SELOGIC Control Equations OUT101 OUT316 Programmable output contacts Use SELOGIC control equations to make the output contacts close for the desired conditions SELOGIC control equation Display Points SELOGIC Control Equations DP1 DP16 Programmable display points Use SELOGIC control equations to control text display SELOGIC control equation Table 7 5 SET G Global Comma...

Page 200: ...tatus for C phase SELOGIC control equation MODST Programmable input that defines the motor operated disconnect status SELOGIC control equation Automatic and Manual Breaker Close Signal See Section 5 Control Logic CLOSE Programmable input that defines an automatic close initiation receive SELOGIC control equation MCLOSE Programmable input that defines a manual close initiation receive SELOGIC contr...

Page 201: ...OUT Front panel timeout 0 30 min 1 min steps TGR Setting group change delay time required before settings actually change 0 900 sec 1 sec steps Breaker Monitor Settings SEL 352 2 Relay only See Section 10 Event Reports and SER for some settings EBCW Enable breaker contact wear monitoring Y N COSP1 Close Open Set Point 1 1 65000 in steps of 1 COSP2 Close Open Set Point 2 1 65000 in steps of 1 COSP3...

Page 202: ...is port Y N RTS_CTS Hardware flow control enabled on this port not available on EIA 485 Port 1 Y N FAST_OP Fast Operate Enable Y N For DNP settings see Appendix G Distributed Network Protocol DNP 3 00 Table 7 7 SET T Command Settings Setting Name Description Setting Range NLB1 NLB16 Name of the local bit 14 characters SLB1 SLB16 Text label to display when the local bit is set 7 characters CLB1 CLB...

Page 203: ...LDpu 5 50 37OP 2 07 47Q 18 7 87TH 4 3 VNpu 10 00 Kmag 5 0 Kang 10 0 THLOG ON OPpu 3 00 26CP 1 110 26CF 1 450 26TP 3 490 26TF 4 560 CRTC 80 TRTC 80 87H 57 0 87FO 4 0 59H 100 0 FOLOG 1 FPpu 25 00 FFpu 30 00 46UB 16 UBLOG ON UCpu 6 00 UPpu 50 00 UFpu 60 00 DELOG OFF 59L 57 0 27D 10 0 CLSLOG 1 CLSdo 5 00 RCApu 0 00 RCBpu 0 00 RCCpu 0 00 RTPLOG 1 SBLOG OFF M86T FBF LBF TTF CTF FOBF UBBF 50MD 0 10 TRLOG...

Page 204: ...52AA IN104 52AB IN104 52AC IN104 MODST IN105 CLOSE IN106 MCLOSE IN106 CCMD LB2 LOD1 0 LOD2 0 LODCT 0 LER 30 PRE 2 NFREQ 60 PHROT ABC DATE_F MDY FP_TIMEOUT 5 TGR 5 SHO R ENTER ALIAS1 NA ALIAS2 NA ALIAS3 NA ALIAS4 NA ALIAS5 NA ALIAS6 NA ALIAS7 NA ALIAS8 NA ALIAS9 NA ALIAS10 NA ALIAS11 NA ALIAS12 NA ALIAS13 NA ALIAS14 NA ALIAS15 NA ALIAS16 NA ALIAS17 NA ALIAS18 NA ALIAS19 NA ALIAS20 NA BALRM FTRS FCR...

Page 205: ...PARITY N STOP 1 TIMEOUT 5 AUTO N RTS_CTS N FAST_OP N SHO T ENTER Text Settings NLB1 MANUAL TRIP CLB1 RETURN SLB1 PLB1 TRIP NLB2 MANUAL CLOSE CLB2 RETURN SLB2 PLB2 CLOSE NLB3 CLB3 SLB3 PLB3 NLB4 CLB4 SLB4 PLB4 NLB5 CLB5 SLB5 PLB5 NLB6 CLB6 SLB6 PLB6 NLB7 CLB7 SLB7 PLB7 NLB8 CLB8 SLB8 PLB8 NLB9 CLB9 SLB9 PLB9 NLB10 CLB10 SLB10 PLB10 NLB11 CLB11 SLB11 PLB11 NLB12 CLB12 SLB12 PLB12 NLB13 CLB13 SLB13 P...

Page 206: ...to the same logic Set the FTLOG setting to the desired scheme i e Scheme 4 and save the settings Scheme 4 equations are now loaded into the current settings Now set FTLOG to CUSTOM so that the SELOGIC control equations for Scheme 4 appear You may now modify the Scheme 4 settings to meet your application needs Save your settings If at any time you want to go back to the default Scheme 4 settings se...

Page 207: ... TTB NA TTC NA LFAS TRIPA 50FTA LFAR 50FTA LFBS TRIPB 50FTB LFBR 50FTB LFCS TRIPC 50FTC LFCR 50FTC FCA LFAQ FCB LFBQ FCC LFCQ FBF FCAD FCBD FCCD Fault Current Protection Scheme 3 The default SELOGIC control equation settings for the fault current protection logic Scheme 3 follow TTA NA TTB NA TTC NA LFAS NA LFAR NA LFBS NA LFBR NA LFCS NA LFCR NA FCA 50FTA TRIPA FCB 50FTB TRIPB FCC 50FTC TRIPC FBF...

Page 208: ...w TTA TRIPA TTB TRIPB TTC TRIPC LFAS NA LFAR NA LFBS NA LFBR NA LFCS NA LFCR NA FCA NA FCB NA FCC NA FBF 50FTA TTAD 50FTB TTBD 50FTC TTCD Fault Current Protection Scheme 5 The default SELOGIC control equation settings for the fault current protection logic Scheme 5 follow TTA NA TTB NA TTC NA LFAS NA LFAR NA LFBS NA LFBR NA LFCS NA LFCR NA FCA TRIPA FCB TRIPB FCC TRIPC FBF 50FTA FCAD 50FTB FCBD 50...

Page 209: ... LPA LLAQ LPB LLBQ LPC LLCQ LDA LLAQ LDB LLBQ LDC LLCQ L52S NA L52R NA AP NA AF NA LPF LPAD LPBD LPCD LBF LDAD LDBD LDCD Load Current Protection Scheme 2 The default SELOGIC control equation settings for the load current protection logic Scheme 2 follow LLAS TRIPA TRIPA 50LDA LLAR 50LDA LLBS TRIPB TRIPB 50LDB LLBR 50LDB LLCS TRIPC TRIPC 50LDC LLCR 50LDC LPA LLAQ LPB LLBQ LPC LLCQ LDA LLAQ LDB LLBQ...

Page 210: ... X Y CRMEC OPCD LTCQ 52AC X27DC Y59LC 52AC Y27DC X59LC TTF 26TFA 50MNA 26TFB 50MNB 26TFC 50MNC CTF 26CFA 50MNA 26CFB 50MNB 26CFC 50MNC Flashover Protection Scheme 1 The default SELOGIC control equation settings for the flashover protection logic Scheme 1 follow F1A 87HA F1B 87HB F1C 87HC F2A 50LDA F2B 50LDB F2C 50LDC F3A TRIPA CLOSE MCLOSE F3B TRIPB CLOSE MCLOSE F3C TRIPC CLOSE MCLOSE LHAS NA LHAR...

Page 211: ...LHCR 50LDC LVAS LHAQ F2AD 50LDA 52AA F3AD LVAR 50LDA F3AD 52AA LVBS LHBQ F2BD 50LDB 52AB F3BD LVBR 50LDB F3BD 52AB LVCS LHCQ F2CD 50LDC 52AC F3CD LVCR 50LDC F3CD 52AC FPA LVAQ FPB LVBQ FPC LVCQ FFA LVAQ FFB LVBQ FFC LVCQ FOPF FPAD FPBD FPCD FOBF FFAD FFBD FFCD Unbalanced Current Protection The default SELOGIC control equation settings for the unbalanced current protection logic follow UC CLOSE MCL...

Page 212: ... LODCT LODPF LT1D LT2D LT3D LODBF LT2D LT1D Controlled Closing Scheme 1 Staggered Closing The default SELOGIC control equation settings for the controlled closing logic Scheme 1 follow RCLS TRIPA TRIPB TRIPC RCA CLOSE MCLOSE RCB CLOSE MCLOSE RCC CLOSE MCLOSE CCT NA MCT NA SYNCT NA SCT NA ZCNA NA ZCNB NA ZCNC NA ZCPA NA ZCPB NA ZCPC NA PCNA NA PCNB NA PCNC NA PCPA NA PCPB NA PCPC NA SYNCEN NA CCA R...

Page 213: ...3 ZCNC CCTD MCTD XPTC XNTC YPTC YNTC X59L3 Y59L3 X59L3 Y59L3 ZCPA NA ZCPB NA ZCPC NA PCNA CCTD MCTD XNTA YNTA X59L3 Y59L3 X59L3 Y59L3 PCNB CCTD MCTD XNTB YNTB X59L3 Y59L3 X59L3 Y59L3 PCNC CCTD MCTD XNTC YNTC X59L3 Y59L3 X59L3 Y59L3 PCPA CCTD MCTD XPTA YPTA X59L3 Y59L3 X59L3 Y59L3 PCPB CCTD MCTD XPTB YPTB X59L3 Y59L3 X59L3 Y59L3 PCPC CCTD MCTD XPTC YPTC X59L3 Y59L3 X59L3 Y59L3 SYNCEN 52AA 52AB 52AC...

Page 214: ... 50LDA LRTBS TRIPB 50LDB LRTBR 50LDB LRTCS TRIPC 50LDC LRTCR 50LDC RT1 LRTAQ RT2 LRTBQ RT3 LRTCQ RTA RT1D RTB RT2D RTC RT3D Lockout Relay Control Scheme 1 No MOD Trip The default SELOGIC control equation settings for the lockout relay control logic Scheme 1 follow M1 M4D L1MS M86T M1D L1MR M1D M2 L1MQ L2MS NA L2MR NA M3 NA L3MS M86T L3MR M86T 50MD M2D M4 M86T 50MD M2D MDT NA 86RS M4D CTF TTF 86BFT...

Page 215: ...ges 3 21 Group Settings SET Pages 22 23 Global Settings SET G Pages 24 26 Port Settings SET P Pages 27 28 Text Settings SET T Categorization of group SET settings is according to the Function column of Table 7 8 Note that functions involving logic settings can be set to Off a predefined scheme or Custom Simple settings sheet arrangement and presentation of each scheme and custom logic setting make...

Page 216: ...n Logic Settings OFF 1 2 CUSTOM Unbalanced Current Protection Logic Settings OFF ON CUSTOM Dielectric Monitor Logic Settings OFF ON CUSTOM Controlled Close Logic Settings OFF 1 2 CUSTOM Retrip Logic Settings OFF 1 2 CUSTOM SELOGIC B OFF CUSTOM 86BF Trip and Reset Logic Settings OFF 1 2 CUSTOM Event Report Trigger and SELOGIC Output Equations Display Point Elements ...

Page 217: ..._ For example ALIAS1 IN101 BREAKER_OPEN Fifteen characters may be used in each alias Set alias names and use these aliases in SELOGIC control equations to ensure valid SEL 5010 setting comparison ALIAS1 ALIAS2 ALIAS3 ALIAS4 ALIAS5 ALIAS6 ALIAS7 ALIAS8 ALIAS9 ALIAS10 ALIAS11 ALIAS12 ALIAS13 ALIAS14 ALIAS15 ALIAS16 ALIAS17 ALIAS18 ALIAS19 ALIAS20 Breaker Monitor Description Range Breaker Alarm Types...

Page 218: ...der Settings Description Range Report Label 59 Characters Text strings may contain any printing character A Z 0 9 space etc but they cannot start with or LABEL Relay Element Event Trigger List Settings Description Range Relay Element Event Trigger Lists Maximum of 24 Relay Word bits per list with space or comma delimiters between bits SER1 SER2 SER3 ...

Page 219: ... steps SlowCl Current Transformer Ratio 1 10000 in increments of 1 CTR X Side Potential Transformer Ratio 1 10000 in increments of 1 XPTR Y Side Potential Transformer Ratio 1 10000 in increments of 1 YPTR SELOGIC A Description Range SELOGIC Set A OFF CUSTOM SALOG If SALOG Custom 62T1A Pickup Time 0 8191 cycles in 1 8 cycle steps T1Apu 62T1A Dropout Time 0 8191 cycles in 1 8 cycle steps T1Ado 62T1B...

Page 220: ...cles in 1 8 cycle steps TTdo 62FC Fault Current Pickup Time 0 8191 cycles in 1 8 cycle steps FCpu If FTLOG 2 62FC Fault Current Pickup Time 0 8191 cycles in 1 8 cycle steps FCpu If FTLOG 3 62FC Fault Current Pickup Time 0 8191 cycles in 1 8 cycle steps FCpu If FTLOG 4 62TT Trip Timer Pickup Time 0 8191 cycles in 1 8 cycle steps TTpu 62TT Trip Timer Dropout Time 0 8191 cycles in 1 8 cycle steps TTd...

Page 221: ...02 9 00 A in 0 01 A steps 1 A 50LD Ground Current Detector 0 10 45 00 A in 0 01 A steps 5 A 0 02 9 00 A in 0 01 A steps 1 A 50N Load Current Logic OFF 1 2 CUSTOM LDLOG If LDLOG 1 62LP Pending Failure Pickup Time 0 16383 cycles in 1 4 cycle steps LPpu 62LD Breaker Failure Pickup Time 0 16383 cycles in 1 4 cycle steps LDpu If LDLOG 2 62LP Pending Failure Pickup Time 0 16383 cycles in 1 4 cycle steps...

Page 222: ...steps LDpu 62AP 52A Pending Failure Time 0 16383 cycles in 1 4 cycle steps APpu 62AF 52A Breaker Failure Time 0 16383 cycles in 1 4 cycle steps AFpu Load Current Latch LLA LLB and LLC Inputs LLAS LLAR LLBS LLBR LLCS LLCR Load Current Timer 62LP and 62LD Inputs LPA LPB LPC LDA LDB LDC Load Current 52 Latch Inputs L52S L52R Load Current Timer 62AP and 62AF Inputs AP AF Load Current Pending Failure L...

Page 223: ...26CF Trip Resistor Alarm Energy 0 010 1000 000 J in 0 001 J steps 5 A 0 002 200 000 J in 0 001 J steps 1 A 26TP Trip Resistor Failure Energy 0 010 1000 000 J in 0 001 J steps 5 A 0 002 200 000 J in 0 001 J steps 1 A 26TF Close Resistor Cooling Time Constant 1 1140 minutes in 1 min steps CRTC Trip Resistor Cooling Time Constant 1 1140 minutes in 1 min steps TRTC If THLOG Custom 62OP Thermal Overpow...

Page 224: ...tion Timer 62OP Inputs OPA OPB OPC Thermal Protection Latch LTA LTB and LTC Inputs LTAS LTAR LTBS LTBR LTCS LTCR Trip Resistor Thermal Model Enables TRMEA TRMEB TRMEC Close Resistor Thermal Model Enables CRMEA CRMEB CRMEC Trip Resistor Thermal Failure TTF Close Resistor Thermal Failure CTF 2 Volts Watts and Joules are set in secondary quantities ...

Page 225: ...6383 cycles in 1 4 cycle steps FPpu 62FF Breaker Failure Pickup Time 0 16383 cycles in 1 4 cycle steps FFpu If FOLOG 2 62FP Pending Failure Pickup Time 0 16383 cycles in 1 4 cycle steps FPpu 62FF Breaker Failure Pickup Time 0 16383 cycles in 1 4 cycle steps FFpu If FOLOG Custom 62FP Pending Failure Pickup Time 0 16383 cycles in 1 4 cycle steps FPpu 62FF Breaker Failure Pickup Time 0 16383 cycles i...

Page 226: ...ngs 4 cont Flashover Protection Latch LVA LVB and LVC Inputs LVAS LVAR LVBS LVBR LVCS LVCR Flashover Pending Failure Timer FPA FPB and FPC Inputs FPA FPB FPC Flashover Breaker Failure Timer FFA FFB and FFC Inputs FFA FFB FFC Flashover Pending Failure FOPF Flashover Breaker Failure FOBF 4 Volts are set in secondary quantities ...

Page 227: ...Ppu 62UF Breaker Failure Timer Pickup Time 0 16383 cycles in 1 4 cycle steps UFpu If UBLOG Custom 62UC Close Input Timer Pickup Time 0 16383 cycles in 1 4 cycle steps UCpu 62UP Pending Failure Timer Pickup Time 0 16383 cycles in 1 4 cycle steps UPpu 62UF Breaker Failure Timer Pickup Time 0 16383 cycles in 1 4 cycle steps UFpu Current Unbalance Timer 62UC Input UC Current Unbalance Latch LU Input L...

Page 228: ...Dead Line Bus Under Voltage 1 0 120 0 V in 0 1 V steps 27D Controlled Close Logic OFF 1 2 CUSTOM CLSLOG If CLSLOG 1 62CLS Timer Dropout Time 0 16383 cycles in 1 4 cycle steps CLSdo 62RCA Timer Pickup Time 0 16383 cycles in 1 4 cycle steps RCApu 62RCB Timer Pickup Time 0 16383 cycles in 1 4 cycle steps RCBpu 62RCC Timer Pickup Time 0 16383 cycles in 1 4 cycle steps RCCpu If CLSLOG 2 62CLS Timer Dro...

Page 229: ... Time 0 16383 cycles in 1 4 cycle steps RCBpu 62RCC Timer Pickup Time 0 16383 cycles in 1 4 cycle steps RCCpu Maximum Slip Freq for Control Close 0 005 0 5 Hz in 0 001 Hz steps 25SC Maximum Control Close Angle 32 25SC to 90 min 1 in 0 1 steps 25AC Maximum Slip Freq for Manual Close 0 005 0 500 Hz in 0 001 Hz steps 25SM Maximum Manual Close Angle 32 25SM to 90 min 1 in 0 1 steps 25AM Synchronizing ...

Page 230: ...CC Controlled Close Timer CCT MCT SYNCT and SCT Inputs CCT MCT SYNCT SCT Controlled Close Negative Zero Crossing ZCNA ZCNB ZCNC Controlled Close Positive Zero Crossing ZCPA ZCPB ZCPC Controlled Close Negative Peak Crossing PCNA PCNB PCNC Controlled Close Positive Peak Crossing PCPA PCPB PCPC Controlled Close Synchronism Logic Enable SYNCEN 4 Volts are set in secondary quantities ...

Page 231: ... RTPLOG If RTPLOG 1 5 If RTPLOG 2 62RT Timer Pickup Time 0 16383 cycles in 1 4 cycle steps RTpu If RTPLOG Custom 62RT Timer Pickup Time 0 16383 cycles in 1 4 cycle steps RTpu Circuit Breaker Retrip Latch LRTA LRTB and LRTC Inputs LRTAS LRTAR LRTBS LRTBR LRTCS LRTCR Circuit Breaker Retrip Timer RT1 RT2 and RT3 Inputs RT1 RT2 RT3 Circuit Breaker Retrip RTA RTB and RTC RTA RTB RTC 4 Volts are set in ...

Page 232: ...s in 1 4 cycle steps T2Cpu 62T2C Dropout Time 0 16383 cycles in 1 4 cycle steps T2Cdo 62T3A Pickup Time 0 16383 cycles in 1 4 cycle steps T3Apu 62T3A Dropout Time 0 16383 cycles in 1 4 cycle steps T3Ado 62T3B Pickup Time 0 16383 cycles in 1 4 cycle steps T3Bpu 62T3B Dropout Time 0 16383 cycles in 1 4 cycle steps T3Bdo 62T3C Pickup Time 0 16383 cycles in 1 4 cycle steps T3Cpu 62T3C Dropout Time 0 1...

Page 233: ...31 SELOGIC B cont L4BS L4BR L4CS L4CR Latch L5A L5B and L5C Inputs L5AS L5AR L5BS L5BR L5CS L5CR Timer T3A T3B and T3C Inputs T3A T3B T3C Latch L6A L6B and L6C Inputs L6AS L6AR L6BS L6BR L6CS L6CR Latch L7A L7B and L7C Inputs L7AS L7AR L7BS L7BR L7CS L7CR SELOGIC Set B Elements SBA SBB SBC ...

Page 234: ...FF 1 2 CUSTOM TRLOG If TRLOG 1 62M2 Timer Pickup Time 0 8191 cycles in 1 8 cycle steps M2pu If TRLOG 2 62M2 Timer Pickup Time 0 8191 cycles in 1 8 cycle steps M2pu 62M3 Timer Pickup Time 0 8191 cycles in 1 8 cycle steps M3pu Trip and Reset Timer M1 Input M1 Trip and Reset Latch L1M Inputs L1MS L1MR Trip and Reset Timer M2 Input M2 Trip and Reset Latch L2M Inputs L2MS L2MR Trip and Reset Timer M3 I...

Page 235: ... 352 1 2 RELAY Date ________ Date Code 20010731 86BF Trip and Reset Logic Settings 1 cont Trip and Reset Timer M4 Input M4 Motor Operated Disconnect Trip MDT Lockout Reset 86RS Breaker Failure Trip 86BFT 1 Amperes are set in secondary quantities ...

Page 236: ... Equations Event Report Trigger Equation SELOGIC control equation MER Mainboard Output Contacts SELOGIC control equations OUT101 OUT102 OUT103 OUT104 OUT105 OUT106 OUT107 Interface Board 1 Output Contacts SELOGIC control equations OUT201 OUT202 OUT203 OUT204 OUT205 OUT206 OUT207 OUT208 OUT209 OUT210 OUT211 OUT212 OUT213 OUT214 OUT215 OUT216 ...

Page 237: ...nd SELOGIC Output Equations cont Interface Board 2 Output Contacts SELOGIC control equations OUT301 OUT302 OUT303 OUT304 OUT305 OUT306 OUT307 OUT308 OUT309 OUT310 OUT311 OUT312 OUT313 OUT314 OUT315 OUT316 Display Point Elements SELOGIC Control Equations DP1 DP2 DP3 DP4 DP5 DP6 DP7 DP8 DP9 DP10 DP11 DP12 DP13 DP14 DP15 DP16 ...

Page 238: ...t Status SELOGIC control equations 52AA 52AB 52AC MODST Automatic and Manual Breaker Close Signal SELOGIC control equations CLOSE MCLOSE Dielectric Pressure Level Indicators SELOGIC control equations LOD1 LOD2 LODCT Relay Settings Description Range Event Report Length 15 30 60 cycles LER Pre Event Length 1 to 14 when LER 15 1 to 29 when LER 30 1 to 59 when LER 60 PRE Nominal Frequency 50 60 Hz NFR...

Page 239: ...scription Enable Breaker Contact Wear Monitoring Y N EBCW Close Open Set Point 1 1 65000 in steps of 1 COSP1 Close Open Set Point 2 1 65000 in steps of 1 COSP2 Close Open Set Point 3 1 65000 in steps of 1 COSP3 kA Interrupt Set Point 1 0 1 999 0 kA in 0 1 kA steps KASP1 kA Interrupt Set Point 2 0 1 999 0 kA in 0 1 kA steps KASP2 kA Interrupt Set Point 3 0 1 999 0 kA in 0 1 kA steps KASP3 ...

Page 240: ..._____ _________ Enable Hardware Handshaking Y N RTS_CTS _________ _________ _________ _________ Fast Operate Enable Y N FAST_OP _________ _________ _________ _________ If PROTO LMD Serial Port Address Prefix PREFIX _________ _________ _________ _________ Serial Port Address 1 99 ADDRESS _________ _________ _________ _________ Serial Port Settling Time 0 30 sec SETTLE _________ _________ _________ ...

Page 241: ...e Between Dial Out Attempts 5 3600 sec MDRETI _________ _________ _________ _________ Number of Dial Out Attempts 0 5 MDRETN _________ _________ _________ _________ Class for Analog Event Data 0 3 ECLASSA _________ _________ _________ _________ Class for Binary Event Data 0 3 ECLASSB _________ _________ _________ _________ Class for Counter Event Data 0 3 ECLASSC _________ _________ _________ ____...

Page 242: ...band Miscellaneous 0 32767 counts ANADBM _________ _________ _________ _________ Event Data Confirmation Time Out 0 1 50 0 sec ETIMEO _________ _________ _________ _________ Data Link Retries 0 15 DRETRY _________ _________ _________ _________ Enable Unsolicited Reporting Y N UNSOL _________ _________ _________ _________ Enable Unsolicited Reporting at Power up Y N PUNSOL _________ _________ _____...

Page 243: ...abels are subject to the specified character limit Enter NA to null a display text label Setting conventions are as follows NLBn Name of Local Bitn 14 characters maximum SLBn Set Local Bitn 7 characters maximum CLBn Clear Local Bitn 7 characters maximum PLBn Pulse Local Bitn 7 characters maximum NLB1 NLB9 CLB1 CLB9 SLB1 SLB9 PLB1 PLB9 NLB2 NLB10 CLB2 CLB10 SLB2 SLB10 PLB2 PLB10 NLB3 NLB11 CLB3 CLB...

Page 244: ...osition Example DPn_1 text displayed when display point is in the set logical 1 position DPn_0 text displayed when display point is in the clear logical 0 position Text strings may contain any printing character A Z 0 9 space etc but they cannot start with or Each label may contain as many as 16 characters Enter NA to null a setting DP1_1 DP9_1 DP1_0 DP9_0 DP2_1 DP10_1 DP2_0 DP10_0 DP3_1 DP11_1 DP...

Page 245: ...ocol 8 8 SEL Fast Operate Protocol 8 8 SEL Compressed ASCII Protocol 8 8 SEL ASCII Protocol Details 8 9 Automatic Messages 8 9 Startup Message 8 9 Group Switch Message 8 9 Status Report 8 9 Summary Event Report 8 10 Access Levels 8 10 Access Level 0 8 11 Access Level 1 8 11 Access Level B Breaker Level 8 11 Access Level 2 8 12 Command Definitions 8 13 2AC Access Level 2 8 13 ACC Access Level 1 8 1...

Page 246: ...8 34 SET T Edit Display Text Settings 8 34 SHO Show Settings 8 34 SHO G Show Global Settings 8 36 SHO P Show Port Settings 8 36 SHO R Show Report Settings 8 37 SHO T Show Display Text Settings 8 38 STA Status Report 8 39 TAR Show Relay Word Targets 8 39 TAR F n Show Relay Word Targets on Front Panel 8 40 TAR R Reset Targets 8 41 TIM Time 8 41 TRI Trigger An Event 8 41 Main Board Jumpers 8 42 Comma...

Page 247: ...in the appendices ESTABLISH COMMUNICATION Establish communication with the SEL 352 Relay through one of its serial ports by using standard off the shelf software and the appropriate cable connections depending on the device Software Use any system that emulates a standard terminal system Such PC based terminal emulation programs include Procomm Plus Relay Gold Microsoft Windows Terminal Microsoft ...

Page 248: ...t 8 IRIG B CTS In CTS In CTS In 9 NA GND GND GND Install a jumper to use the 5 V connection and remove a solder jumper to disable the IRIG B input See Serial Port Jumpers in Section 2 Installation for more information Port 1 is an EIA 485 protocol connection on the rear of the relay It accepts a plug in plug out terminal block that supports wire sizes from 24 AWG up to 12 AWG The connector is supp...

Page 249: ...Installation For example to connect the SEL 352 Relay Port 2 3 or 4 to the 9 pin male connector on a laptop order cable number C234A and specify the length needed To connect the SEL 352 Relay Port 2 to the SEL 2020 SEL 2030 Communications Processor that supplies the communications link and the time synchronization signal order cable number C273A and specify the length needed For connecting devices...

Page 250: ...52 Relay 9 Pin Male D Subconnector DTE Device 25 Pin Female D Subconnector SEL 352 Relay to Modem Cable C222 SEL 352 Relay 9 Pin Male D Subconnector DCE Device 25 Pin Male D Subconnector RXD 2 TXD 3 GND 5 CTS 8 GND 5 TXD 3 RXD 2 GND 9 CTS 8 GND 5 TXD 3 RTS 7 RXD 2 CTS 8 GND 9 3 TXD 2 RXD 5 GND 8 CTS 7 RTS 1 DCD 4 DTR 6 DSR 7 GND 3 RXD 2 TXD 1 GND 4 RTS 5 CTS 6 DSR 8 DCD 20 DTR 7 GND 2 TXD IN 20 DT...

Page 251: ...ctor SEL 352 Relay 9 Pin Male D Subconnector Cable 273A SEL 2020 or SEL 2030 9 Pin Male D Subconnector SEL 352 Relay 9 Pin Male D Subconnector DTE Data Terminal Equipment Computer Terminal Printer etc DCE Data Communications Equipment Modem etc GND 5 TXD 3 RTS 7 RXD 2 CTS 8 5 VDC 1 GND 9 RXD 2 TXD 3 IRIG 4 GND 5 IRIG 6 RTS 7 CTS 8 7 GND 2 TXD IN 20 DTR IN 3 RXD OUT 8 CD OUT 10 PWR IN 1 GND 3 TXD 2...

Page 252: ...the serial communications ports Note In this document commands you type appear in bold upper case SET Keys you press appear in bold upper case brackets ENTER Relay output appears boxed and in the following format EXAMPLE BUS B BREAKER 3 Date 02 01 93 Time 00 03 25 180 The communications protocol consists of hardware and software features Hardware Protocol The following hardware protocol is designe...

Page 253: ... Upper and lower case characters may be used without distinction except in passwords 2 The relay transmits all messages in the following format STX CR LF MESSAGE LINE 1 CR LF MESSAGE LINE 2 CR LF LAST MESSAGE LINE CR LF ETX PROMPT Each message begins with the start of transmission character STX ASCII character 02 and ends with the end of transmission character ETX ASCII character 03 3 The relay in...

Page 254: ...L Distributed Network Protocol DNP meets DNP 3 00 Level 2 requirements Select the protocol by setting PROTOCOL DNP a SET P setting See Appendix G Distributed Network Protocol DNP 3 00 for more information SEL Fast Meter Protocol SEL Fast Meter protocol supports binary messages to transfer metering messages SEL Fast Meter protocol is always available on any serial port The protocol is described in ...

Page 255: ...s three different setting groups for the SET settings The active group is selected by the group variable or the SS1 and SS2 bits When either of these change the active group the following automatic message is generated EXAMPLE CIRCUIT BREAKER Date 11 09 96 Time 13 39 07 560 Active Group 2 Group Variable 1 TRMID setting for the new active group Date and time of group change Active setting group now...

Page 256: ...y Event Report An automatic message is generated each time an event is triggered The message is a summary of the event EXAMPLE CIRCUIT BREAKER Date 11 09 96 Time 14 23 41 758 Event INT Frequency Hz 60 0 TRMID setting Date and time the event was triggered The event type Frequency the sampling rate of the relay was tracking to at the time of trigger Access Levels Commands can be issued to the relay ...

Page 257: ...ulation you are using is translating the characters differently VT 100 emulation is recommended This prompt is referred to as Access Level 0 The only commands that can be executed at Access Level 0 are the ACC and QUI commands see Figure 8 2 Enter the ACC command at the Access Level 0 prompt to go to Access Level 1 Access Level 1 After issuing the ACC command and entering the Level 1 password if i...

Page 258: ...els can be executed Access Level 2 After issuing the 2AC command and entering the password if it is required the relay pulses the alarm contact and is in Access Level 2 The following prompt appears when in Access Level 2 Many commands can be executed from Access Level 2 for viewing relay information controlling the breaker and changing settings While in Access Level 2 any of the commands available...

Page 259: ...ds later in this section Use the PASSWORD command from Access Level 2 to change passwords Install main board jumper JMP6A to disable password protection The following display indicates successful access to Level 2 2AC ENTER Password EXAMPLE CIRCUIT BREAKER Date 11 09 96 Time 14 23 41 758 Level 2 You may use any command from the prompt The relay pulses the ALARM contact for one second after any Lev...

Page 260: ...The breaker monitor report gives electrical and mechanical operating times total energy dissipated and maximum current interrupted for the last 512 operations on a per pole basis and a summary of all of this information The summary of the operations and breaker alarms provides valuable breaker diagnostic information at a glance An example breaker report follows but it would also include the summar...

Page 261: ...mary and the breaker alarms This provides the average breaker operation times and the time for the last operation Compare these two values to determine if the breaker is slowing down and requires maintenance Refer to Section 6 Metering and Monitoring Breaker Monitor for more information and a complete description of the report Percent wear is only available in the SEL 352 2 Relay BRE S ENTER EXAMP...

Page 262: ...ker Wear Data SEL 352 2 Relay Access Level B Use the BRE W command to preload contact wear trip and close operation counters and trip and close current accumulators on a per phase basis This command is only available in the SEL 352 2 Relay 1 2 3 4 5 6 7 8 12345678901234567890123456789012345678901234567890123456789012345678901234567890 BREAKER W ENTER Preload Contact Wear Operation Counters and Acc...

Page 263: ... E Compressed ASCII Commands for a complete description of the command CLO Close Access Level B The CLOSE command asserts the CCMD bit if TRIPA TRIPB TRIPC and TRIP3 are not all asserted The CCMD bit remains asserted for 30 cycles then the relay checks the status of the 52A input assignments to determine if the breaker is closed Figure 8 3 CCMD Relay Word Bit If the breaker closes successfully bas...

Page 264: ...terval one eighth cycle The Remote Bits permit design of SELOGIC control equations that can be set cleared or momentarily activated via a remote serial port command CON 1 ENTER CONTROL RB1 PRB 1 COP m n Copy Settings Access Level 2 The COPY command copies settings and logic from setting Group m to Group n m and n can be any combination of 1 2 or 3 After entering the settings into one setting group...

Page 265: ...ng the date allow at least 60 seconds before powering down the relay or the new setting may be lost EVE Event Reports Access Level 1 The EVENT command displays an event report Optional parameters are specified to determine the event displayed and its format Refer to Event Reports in Section 10 Event Reports and SER for a complete description of the event reports The entire syntax of the EVENT comm...

Page 266: ... channels If the A is not specified the standard X side voltages and currents with the standard digitals are displayed Specify the number of samples per cycle resolution of the event with the Ss parameter The small s can be 4 8 16 or 64 If the Ss parameter is not specified the relay defaults to S4 The relay stores the event with 64 samples per cycle resolution When displaying the event select the ...

Page 267: ... Active Group 2 Group Variable 2 Note The relay will be disabled momentarily while the group switch takes place The GROUP command at Access Level 1 shows the active group but does not allow changes Access Level 2 allows the GROUP command to change the group variable HEA Resistor Heat Report Access Level 1 The SEL 352 Relay tracks heat of the close and open resistor for each of the three phases The...

Page 268: ...els Are you sure Y N Y ENTER Resetting Complete HIS History of Events Access Level 1 The HISTORY command displays up to 40 event summaries depending on the SET G setting LER as follows LER Setting Number of Event Reports Stored 15 cycles 40 30 cycles 20 60 cycles 10 Each summary shows the date time event type active setting group and relay targets Enter HIS n where n is a positive number to limit ...

Page 269: ...protection logic The following is an example of the HIS C command The relay will pause after the word Clearing until the buffer is completely clear and then it will display the rest of the information HIS C ENTER Clear History Buffer Are you sure Y N Y ENTER Clearing Complete Relay pauses after the word Clearing 87 21 Automated clearing of the event buffer should be limited to reduce the possibili...

Page 270: ... BREAKER Date 11 10 96 Time 22 47 57 123 SEL 352 1 Automatic Status Message Generated for Failed I O Test Entire status report not shown EXAMPLE CIRCUIT BREAKER Date 11 10 96 Time 22 48 00 310 TEMP RAM ROM A D CR_RAM EEPROM IO_BRD 27 5 OK OK OK OK OK FAIL Relay Disabled Enter Access Level 1 Password Jumper JMP6A Removed ACC ENTER EXAMPLE CIRCUIT BREAKER Date 11 10 96 Time 22 48 10 717 Level 1 Disp...

Page 271: ...K OK OK FAIL Relay Disabled Enter Access Level 1 Password Jumper JMP6A Removed ACC ENTER EXAMPLE CIRCUIT BREAKER Date 11 10 96 Time 22 50 22 778 Level 1 Display New I O INI ENTER I O BOARD INPUTS OUTPUTS Main 6 7 1 No Board Connected 1 Previous 8 16 2 8 8 Enter Access Level 2 Password Jumper JMP6A Removed 2AC EXAMPLE CIRCUIT BREAKER Date 11 10 96 Time 22 50 30 747 Level 2 Initialize New I O INI EN...

Page 272: ... to prevent delays during testing and installation checkout MET Metering Report Access Level 1 The METER command displays the phase to neutral and phase to phase voltages and currents in primary kilovolts and amperes It also displays real and reactive power in megawatts and megavars Refer to Metering in Section 6 Metering and Monitoring for a complete description of the meter report An example is ...

Page 273: ...t contact The TCMD bit may be used anywhere in the logic that meets your breaker control application needs To open the circuit breaker by command type OPE ENTER The prompt Open Breaker Y N is displayed Then Are you sure Y N Typing N ENTER after either of the above prompts aborts the opening operation with the message Command Aborted If the main board jumper JMP6B is not in place the relay responds...

Page 274: ...ords are case sensitive PAS 1 Ot3579 ENTER Set Similarly PAS B and PAS 2 can be used to change the Level B and Level 2 passwords respectively The relay sets the password pulses the ALARM relay closed for approximately one second and transmits the response Set to the display Passwords may contain up to six characters and include any combination of letters numbers periods or hyphens Upper and lower ...

Page 275: ...ut contact element name such as OUT201 Parameter k must be a number ranging from 1 to 30 seconds PUL OUT201 ENTER Pulse contact OUT201 for 1 second s Y N Y ENTER Are you sure Y N Y ENTER QUI Quit Access Level 1 The QUIT command returns the relay to Access Level 0 from Level 1 B or 2 The command displays the relay setting TRMID date and time of QUIT command execution Use the QUI command when you fi...

Page 276: ...512 sequential event records To limit the number of records displayed use date parameters with the SER command SER d1 shows only events triggered on or after the date specified by d1 SER d1 d2 shows only events triggered on or between the specified dates The following is an example of the SER report See Section 10 Event Reports and SER for a complete description of the report SER 11 12 96 11 13 96...

Page 277: ...ting group setting specifies the setting name to immediately jump to The default is the first setting TERSE disables the display of the new settings at the end of the setting procedure If a setting is hidden because that section of the settings is turned OFF you cannot jump to that setting TERSE is very useful when making small changes to the settings For example the following procedure is recomme...

Page 278: ... input range If it is not an Out of Range message is generated and the relay prompts for the setting again When you have made all the necessary setting changes it is not necessary to scroll through the remaining settings Type END ENTER at the next setting prompt to display the new settings and request for confirmation Answer Y ENTER to the confirmation request to approve the new settings If you vi...

Page 279: ...immediately jump to The default is the first setting TERSE disables the display of the new settings at the end of the setting procedure The SET P procedure works just like the SET procedure Table 8 4 lists the editing keys that you can use with the SET command Refer to the SHO P command for a list of the factory default settings Refer to Section 7 Setting the Relay for all default settings and set...

Page 280: ...or more information on these settings The entire syntax of the SET T command follows SET T setting TERSE ENTER The two parameters are optional and perform the following functions setting specifies the setting name to immediately jump to The default is the first setting TERSE disables the display of the new settings at the end of the setting procedure The SET T procedure works just like the SET pro...

Page 281: ...LOG 1 LPpu 3 25 LDpu 5 50 37OP 2 07 47Q 18 7 87TH 4 3 VNpu 10 00 Kmag 5 0 Kang 10 0 THLOG ON OPpu 3 00 26CP 1 11 26CF 1 45 26TP 3 49 26TF 4 56 CRTC 80 TRTC 80 87H 57 0 87FO 4 0 59H 100 0 FOLOG 1 FPpu 25 00 FFpu 30 00 46UB 16 UBLOG ON UCpu 6 00 UPpu 50 00 UFpu 60 00 DELOG OFF 59L 57 0 27D 10 0 CLSLOG 1 CLSdo 5 00 RCApu 0 00 RCBpu 0 00 RCCpu 0 00 RTPLOG 1 SBLOG OFF M86T FBF LBF TTF CTF FOBF UBBF 50M...

Page 282: ...0 TRIPA IN101 TCMD LB1 TRIPB IN102 TCMD LB1 TRIPC IN103 TCMD LB1 TRIP3 IN101 IN102 IN103 TCMD LB1 52AA IN104 52AB IN104 52AC IN104 MODST IN105 CLOSE IN106 MCLOSE IN106 CCMD LB2 LOD1 NA LOD2 NA LODCT NA LER 30 PRE 2 NFREQ 60 PHROT ABC DATE_F MDY FP_TIMEOUT 5 TGR 5 SHO P Show Port Settings Access Level 1 SHOWSET P displays the relay serial port settings The port settings include the communications a...

Page 283: ...ng specifies the setting name to immediately jump to The default is the first setting Settings cannot be entered or modified with this command Change settings with the SET R command from Access Level 2 The following example shows the factory default settings Refer to Section 7 Setting the Relay for a list of all settings SHO R ENTER ALIAS1 NA ALIAS2 NA ALIAS3 NA ALIAS4 NA ALIAS5 NA ALIAS6 NA ALIAS...

Page 284: ...ttings cannot be entered or modified with this command Change settings with the SET T command from Access Level 2 SET command for DPn variables The following example shows the factory default text settings Refer to Section 7 Setting the Relay for all default settings and settings worksheets SHO T ENTER Text Settings NLB1 MANUAL TRIP CLB1 RETURN SLB1 PLB1 TRIP NLB2 MANUAL CLOSE CLB2 RETURN SLB2 PLB...

Page 285: ... format appears below STA ENTER EXAMPLE CIRCUIT BREAKER Date 11 12 96 Time 16 43 21 794 FID SEL 352 2 X105 V0 Z101101 D20010116 CID EBE8 SELF TESTS W Warn F Fail IA IB IC VAX VBX VCX OS 5 5 2 1 3 3 VAY VBY VCY MOF OS 1 0 2 1 5V_PS 5V_REG 5V_REG 12V_PS 12V_PS 15V_PS 15V_PS PS 4 92 5 01 5 00 12 09 12 21 14 92 14 92 TEMP RAM ROM A D CR_RAM EEPROM IO_BRD 28 6 OK OK OK OK OK OK Relay Enabled Refer to S...

Page 286: ...0 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TAR 37OPA X ENTER Display Row 9 37OPA But Do Not Change Default Y47Q X47Q 37OPC 37OPB 37OPA 87HC 87HB 87HA 0 0 0 0 1 0 0 0 TAR ENTER 25M 25C 46C 46B 46A 50MD 50LD 50FT 0 0 0 0 0 0 0 0 TAR R ENTER Reset Default to Row 0 EN PF 86BFT 86RS TRIP CLOSE 52A MOD 1 0 0 0 0 0 0 0 Refer to Appendix F Relay Word for a list of the Relay ...

Page 287: ...testing TIM Time Access Level 1 The TIME command displays or sets the time stored by the internal clock View the current time with TIM ENTER To set the clock type TIM t1 ENTER where t1 is the new time in h m s and the seconds are optional Separate the hours minutes and seconds with colons semicolons spaces commas or slashes The following example sets the clock to 23 30 00 TIM 23 30 00 ENTER 23 30 ...

Page 288: ...ing Access Level 2 or Three wrong password attempts into Access Level 2 ACC Three wrong password attempts into Access Level 1 BAC Entering Breaker Access Level or Three wrong password attempts into Breaker Access Level COP m n Copying a setting group to the active setting group GRO n Changing the active setting group PAS n newpas Any password is changed SET commands Changing the SET G settings the...

Page 289: ...elay date according to the format setting DATE_F Set relay date to d1 If the date format setting DATE_F MDY d1 is m d y If DATE_F YMD d1 is y m d 1 OTHER EVE n A Ss Lc Display an event report with VX and I channels n specifies event number according to the HIS command A specifies the alternate report showing VY not VX and I Ss specifies the samples per cycle s 4 8 16 64 Lc specifies the length in ...

Page 290: ... reporting Aliases SER BALARM settings Edit Local Bit and Display Point text settings Give a setting name to jump to that setting immediately The TERSE option disables the setting verification display 2 2 2 2 2 SET SET SHO n SHO G SHO P n SHO R SHO T setting A Show group n n 1 2 or 3 relay settings Show global inputs relay configuration settings Show serial port n n 1 to 4 settings Defaults to the...

Page 291: ...4 Password Access 9 4 Pushbuttons 9 5 TARGET RESET 9 5 METER 9 5 EVENTS 9 5 STATUS 9 5 OTHER 9 5 SET 9 6 CNTRL 9 6 GROUP 9 6 CANCEL 9 7 SELECT 9 7 Arrows 9 7 EXIT 9 7 TABLES Table 9 1 Front Panel Button Serial Port Equivalents 9 7 FIGURES Figure 9 1 SEL 352 Relay Front Panel Display 9 1 Figure 9 2 Front Panel Symbols for Asserted and Deasserted Bits 9 2 Figure 9 3 Front Panel Operation Map 9 8 Fig...

Page 292: ......

Page 293: ...ressed on the front panel the relay waits a time period specified in the SET G setting FP_TIMEOUT and then takes the following actions The front panel LCD resets to the default metering display The front panel access level reverts to Access Level 1 The LCD back lighting is turned off Any routine being executed via a front panel command is interrupted The target LEDs revert to the default targets F...

Page 294: ...aracter of the menu choice is underlined The left and right arrow buttons move the underline to the adjacent menu selection Once the underline indicates your selection use the SELECT button to select it Special characters are displayed when viewing the SER reports Figure 9 2 shows symbols for asserted and deasserted bits Figure 9 2 Front Panel Symbols for Asserted and Deasserted Bits Local Bits LB...

Page 295: ...r Local Bit functional displays that have been specified If the user decides to trip the relay using this Local Bit he pushes the SELECT button The display then changes to MANUAL TRIP TRIP Yes No Ä Å If Yes the user employs the left arrow to underline Yes then the SELECT button to perform the trip While the Local Bit is being asserted pulsed to perform the trip the TRIP target lights and the displ...

Page 296: ... the text messages is defined the relay will only display a message when DP1 is in the proper state for the defined message The front panel scrolls through all active displays showing two lines of messages for two seconds at a time before moving on to the next messages Target LEDs The target LEDs are an indication of what the relay has detected on the power system The front panel legend gives a br...

Page 297: ...TS Push the EVENTS button to display short event summaries SER events and breaker operation data Use the and buttons to scroll between His SER and Breaker Press the SELECT button when the cursor is on the desired record type If no records exist after selecting one of the record type options the display gives an error message and terminates the command If there are records to view the display promp...

Page 298: ...gs A setting must first be selected before a change can be made Selecting PASS will prompt for which access level password to set Once the level is selected a password may be entered The password must be terminated by a space if it is less than 6 characters long The SET button performs the SET SET P PAS SHO or SHO P serial port commands CNTRL Use the CNTRL button to perform control functions speci...

Page 299: ...thin dialogues to select a menu choice Once the choice is identified with the arrow buttons use the SELECT button to select that choice Under the group variable change you are prompted Are You Sure to change the setting group variable The SELECT button accepts the change Arrows The arrow buttons are used throughout the front panel displays for scrolling through lists of items identifying menu choi...

Page 300: ...9 8 Front Panel Interface Date Code 20010731 SEL 352 1 2 Instruction Manual Figure 9 3 Front Panel Operation Map ...

Page 301: ...Date Code 20010731 Front Panel Interface 9 9 SEL 352 1 2 Instruction Manual Figure 9 4 Front Panel Operation Map Continued ...

Page 302: ......

Page 303: ... 3 Relay Word Bit 86BFT 10 3 Relay Word Bit MER 10 3 TRIGGER Command 10 4 Event Report Setup 10 4 Retrieving Event Reports 10 4 Event Report Description 10 6 Heading 10 8 Data Columns 10 8 Event Type 10 12 Frequency Tracking 10 13 Voltage Nulling Factor 10 13 History of Event Reports 10 13 Clearing Event Report Buffer 10 13 Sequential Events Recorder SER Report 10 14 SER Report Row Triggering 10 1...

Page 304: ...e 20010731 SEL 352 1 2 Instruction Manual TABLES Table 10 1 Event Report Columns EVENT n Command 10 9 Table 10 2 Event Report Columns EVENT A n Command 10 11 Table 10 3 Event Types 10 12 FIGURES Figure 10 1 Typical 86BFT Assertion 10 3 ...

Page 305: ... setting defines the length of each event report Set LER to 15 30 or 60 cycles depending on your application Use 15 cycles for high speed breaker failure operations Use 30 cycles for breaker failure and most closing operations If your primary application is for synchronism checking or oscillography use 60 cycles If your applications are diverse enough to need different lengths use 60 cycles You ca...

Page 306: ...ial communications port that determines if these automatic messages display Refer to Automatic Messages in Section 8 Serial Port Communications and Commands for further information on the individual reports If AUTO is set to Y or YES for a port the automatic messages display on that port EVENT REPORTS EVE Each triggered event consists of two separate reports The EVE command displays the X side vol...

Page 307: ...his setting This setting typically is assigned to the latch output The latch typically is set to follow the M86T equation which usually is assigned to the failure output elements of the individual protection logic The relevant settings for the default relay settings follow M86T FBF LBF TTF CTF FOBF UBBF asserts M86T bit L3MS M86T asserts L3MQ bit 86BFT L3MQ asserts 86BFT bit Figure 10 1 Typical 86...

Page 308: ...ess of the state of MER or 86BFT Event Report Setup Event reporting has three user selectable configurations Event Length of Events Stored 15 Cycles 40 30 Cycles 20 60 Cycles 10 Each of these configurations provides 10 seconds of total event reports The longer the event reports the longer it takes to store and retrieve these reports Neither of these processes interrupt relay protection operation b...

Page 309: ...1 to display the newest event report Type EVE 9 ENTER to display event number 9 Include the A as a parameter to display the alternate Y side voltages and an alternate set of digital channels If the A is unspecified the standard X side voltages and currents with the standard digitals are displayed Specify the number of samples per cycle resolution of the event with the Ss parameter The small s can ...

Page 310: ...980 327 A33 3 3 45 325 5 35 6 375 9 4938 25 827 A33 3 3 45 220 2 409 4 168 0 6033 764 382 A33 3 3 45 326 2 36 2 375 4 5036 182 768 A33 3 3 45 219 1 410 4 168 2 6139 976 322 A33 3 A 3 145 325 6 35 4 375 8 4934 21 827 A33 3 A A 3 145 220 0 409 4 168 3 6033 764 386 A33 3 A A 3 145 326 4 35 7 375 2 5028 182 764 A33 3 A A 3 145 3 cycles of data not shown 217 9 410 5 169 7 6160 972 331 A33 3 A A 3 B36 1...

Page 311: ...3 40 5 377 3 B 223 3 409 7 164 6 B 323 1 40 3 377 3 B 223 8 409 4 164 3 B 323 6 40 0 377 1 B 3 cycles of data not shown 222 1 409 8 166 0 B 324 3 38 2 376 5 B 0 0 0 1 0 0 22 0 1 0 2 0 0 33 0 1 0 1 0 0 33 0 0 0 1 0 0 33 0 1 0 1 0 0 Y33 0 1 0 2 0 1 B 0 0 0 1 0 0 B 0 0 0 1 0 0 B 0 1 0 1 0 1 B 0 1 0 2 0 1 B 6 cycles of data not shown Event 86BFT Frequency Hz 60 0 Voltage Nulling Factor Magnitude Angle...

Page 312: ... event type is based on elements that pick up any time during the event Heading Each event report begins with information about the relay and the event The TRMID setting is displayed so the event can be easily identified with the terminal the relay is monitoring The FID string identifies the relay model flash firmware version and the date code of the firmware Refer to Appendix A Firmware Versions ...

Page 313: ...urrent element picked up 2 Two overcurrent elements picked up 3 Three overcurrent elements picked up 50N 50N Residual overcurrent element picked up X59H X59HA X59HB X59HC A A phase overvoltage element picked up X59L X59LA X59LB X59LC B B phase overvoltage element picked up C C phase overvoltage element picked up 2 Two phase overvoltage elements picked up 3 All three phase overvoltage elements pick...

Page 314: ... elements asserted OUT 101 2 OUT101 OUT102 1 Output contact OUT101 asserted 2 Output contact OUT102 asserted B Both OUT101 and OUT102 asserted OUT 103 4 OUT103 OUT104 3 Output contact OUT103 asserted 4 Output contact OUT104 asserted B Both OUT103 and OUT104 asserted OUT 105 6 OUT105 OUT106 5 Output contact OUT105 asserted 6 Output contact OUT106 asserted B Both OUT105 and OUT106 asserted OUT 107 A...

Page 315: ...ervoltage elements picked up Y All three Y side phase undervoltage elements picked up B All three phase undervoltage elements picked up for both the X and Y side 87TH 87THA 87THB 87THC A A phase voltage differential element picked up 87FO 87FOA 87FOB 87FOC B B phase voltage differential element picked up C C phase voltage differential element picked up 2 Two voltage differential elements picked up...

Page 316: ...ype Determination of event type depends upon the bits that assert any time during the event report The conditions that determine the possible event types are shown in Table 10 3 If more than one condition asserts during the event the relay reports the event type listed first higher in the table Table 10 3 Event Types Event Event Triggered by 86BFT Assertion of Relay Word bit 86BFT TRIP3 Assertion ...

Page 317: ...e the relay generates an event report it also generates a corresponding event summary Event summaries as displayed by the HIS command contain the following information Event number at the time the HIS command was issued Date and time when the event was triggered Event type Setting group the relay was using at the time of trigger HIS ENTER EXAMPLE CIRCUIT BREAKER Date 09 04 96 Time 20 53 30 788 DAT...

Page 318: ... the long list of bits for easier editing All three settings perform the same function The SER1 SER2 and SER3 elements are processed every 1 8 cycle Trigger a sequential events record using these three SELOGIC control equation settings The time stamp accuracy of the record is ms In developing SER settings use spaces as delimiters between elements For example to trigger the SER for all breaker auxi...

Page 319: ...row date 3 23 96 at the end bottom of the report Chronological progression is down the page and in ascending row number The date entries in the above example SER commands are dependent on the date format setting DATE_F If setting DATE_F MDY then the dates are entered as described above Month Day Year If setting DATE_F YMD then the dates are entered Year Month Day Clearing the SER Report The SER C ...

Page 320: ...9 096 BFR_RESET Asserted 11 09 26 96 13 22 30 097 MOD_TRIP Deasserted 12 09 26 96 13 22 30 097 BFR_RESET Deasserted Date and Time The date and time displayed in the SER are the time the Relay Word bit changed state The time stamp is accurate to within 1 ms Element The Relay Word bit name or alias is listed under the element column The Relay Word bit name is normally displayed when it is in the SER...

Page 321: ...16 Fault Current Breaker Failure Scheme 1 Logic Test 11 17 Fault Current Breaker Failure Scheme 2 Logic Test 11 19 Fault Current Breaker Failure Scheme 3 Logic Test 11 19 Fault Current Breaker Failure Scheme 4 Logic Test 11 21 Fault Current Breaker Failure Scheme 5 Logic Test 11 22 Load Current Breaker Failure Scheme 1 Logic Test 11 23 Load Current Breaker Failure Scheme 2 Logic Test 11 24 Circuit...

Page 322: ...s Meaningless Characters 11 43 SELBOOT on LCD Display and Serial Port Warning to Remove Jumper at power up 11 43 Self Test Failure 5 V 11 43 Self Test Failure 15 V 11 43 Self Test Failure 15 V 11 44 Self Test Failure Offset 11 44 Self Test Failure ROM 11 44 Self Test Failure RAM 11 44 Self Test Failure CR_RAM 11 44 Self Test Failure A D Converter 11 44 Self Test Failure IO_BRD 11 44 Self Test Fail...

Page 323: ...ation setting Each event report contains analog and digital information for analyzing the relay operations View the standard and alternate event reports using the EVE and EVE A commands Programmable Outputs Programmable outputs allow you to isolate individual relay elements See the SET command in Section 8 Serial Port Communications and Commands SER Command Use the Sequential Event Recorder for ti...

Page 324: ...ating characteristics stop timers etc Tests in this section assume an a output contact Sequential Events Recorder SER To test using this method set the SER to trigger for the element under test Using the SET R command put the element name in the SER1 SER2 or SER3 setting Whenever an element asserts or deasserts a time stamp is recorded View the SER report with the SER command Clear the SER report ...

Page 325: ...should familiarize yourself with the relay and make certain that all functions are operational during the initial checkout procedure For a complete understanding of the relay s capabilities refer to the individual sections within the rest of the instruction manual Equipment Required The following equipment is necessary for initial checkout 1 A terminal or computer with terminal emulation with EIA ...

Page 326: ...ly adjusted for the control and logic input requirements PART NUMBER 0352XXXXXXXXXXX S N LOGIC INPUT POWER SUPPLY AMPS 99334035 85 264Vac 50 60 Hz 85 350Vdc 15W Max 125Vdc 5 DWG M352028 V f 67 Figure 11 2 Relay Part Number and Hardware Identification Sticker Step 3 Purpose Verify the communications interface setup Method Connect a computer terminal to Port 2 3 or 4 of the relay Communication Param...

Page 327: ...relay on Step 6 Purpose Establish Access Level 1 communications Method Type ACC ENTER At the prompt enter the Access Level 1 password and press ENTER See PAS Passwords in Section 8 Serial Port Communications and Commands for factory default passwords The prompt should appear indicating that you have established communications at Access Level 1 Step 7 Purpose Verify relay self test status Method Ty...

Page 328: ...F 4 56 CRTC 80 TRTC 80 87H 57 0 87F0 4 0 59H 100 0 FOLOG 1 FPpu 25 00 FFpu 30 00 46UB 16 UBLOG ON UCpu 6 00 UPpu 50 00 UFpu 60 00 DELOG OFF 59L 57 0 27D 10 0 CLSLOG 1 CLSdo 5 00 RCApu 0 00 RCBpu 0 00 RCCpu 0 00 RTPLOG 1 SBLOG OFF M86T FBF LBF TTF CTF FOBF UBBF 50MD 0 10 TRLOG 2 M2pu 600 000 M3pu 600 000 MER UBPF LPF FOPF LODPF TRIPA TRIPB TRIPC CLOSE MCLOSE 26CPA 26CPB 26CPC 26TPA 26TPB 26TPC MDT ...

Page 329: ... 11 3 and Figure 11 4 for connection diagrams Step 10 Purpose Verify correct voltage levels Method Turn on the relay and use the ACCESS command to reach Access Level 1 Use the METER command to measure the voltages applied in Step 9 With applied voltages of 67 V per phase and a potential transformer ratio of 4300 1 SHO XPTR ENTER displays the PT ratios CTRL X cancels scrolling the displayed line to...

Page 330: ... balanced positive sequence currents a Connect the A phase and B phase current sources to the dotted A and B current input terminals b Connect both undotted A and B current input terminals to the undotted C current input terminal c Connect the dotted C current input terminal to both the A and B current source returns Set the current sources to deliver one ampere at the same angle as their correspo...

Page 331: ...ontact inputs by typing TARGET F IN101 ENTER The bottom row of the front panel LEDs should now follow contact inputs IN101 through IN106 which is Relay Word Row 17 2 Apply control voltage to each input and make sure the corresponding target LED turns on 3 Repeat this step for each input Use the TARGET F command to display the appropriate input elements For example to see the row of the Relay Word ...

Page 332: ...lashing This should occur when the current reaches the 50LD setting Now remove the current from the relay but leave the current source at two times this level 7 Set the target LEDs to display the output contacts by typing TAR F OUT101 ENTER The front panel LEDs should now follow Row 73 of the Relay Word where OUT101 is listed 8 From Access Level 2 set up the Sequential Events Recorder by typing SE...

Page 333: ...at least two currents 5 Ohmmeter or contact opening closing sensing device 6 Timer with contact inputs for start and stop What Should Be Tested A full functional test includes the initial checkout procedure and the additional steps described below In general these tests assure that the relay settings match your application rather than checking relay performance For commissioning purposes your comp...

Page 334: ...ent of 1 A for each current input The phase angle of the voltage and current sources should all be set to 0 3 Use the METER command to inspect measured voltages currents and power Voltages VAX VBX VCX VAY VBY and VCY should equal the applied voltage times the potential transformer ratio setting With the Example 500 kV Line settings you should obtain VA VB VC 50 V 4300 215 kV AB BC and CA voltages ...

Page 335: ...DB 50MDC 50FT 50FT 50FTA 50FTB 50FTC 2 Ramp current on the phase s under test and observe the pickup and dropout of each element Record the results 3 Verify the test results with the appropriate setting Use the SHO command to check the setting GROUND OVERCURRENT ELEMENT TEST Purpose Verify the pickup threshold of the 50N ground overcurrent element Method 1 Type TAR F 50N ENTER to set the fifth LED...

Page 336: ...ith a 3 at the end of the label require all three phase elements to be picked up 3 Verify the results with the indicated setting NEGATIVE SEQUENCE OVERVOLTAGE ELEMENT TEST Purpose Verify the pickup threshold of the negative sequence overvoltage elements Method 1 Using the TARGET F command with the element name set the bottom row of the front panel target LEDs to display the appropriate negative se...

Page 337: ...udes divided by the 46UB setting exceeds the current magnitude of the phase under test This translates to the following equation for a phase A test 1 UB 46 I I I C B A The 46P asserts when any of the phase elements assert PHASE OVERPOWER ELEMENT TEST Purpose Verify the pickup threshold of the phase overpower elements Reference Figure 3 19 Method 1 This test requires applying voltage to only one se...

Page 338: ...ord row so they can be monitored simultaneously Setting Elements 87FO 87F 87FOA 87FOB 87FOC 87TH 87TH 87THA 87THB 87THC 87H 87H 87HA 87HB 87HC 3 Apply voltage to one phase and observe the pickup and dropout of each element Record the results The elements without a phase indication assert when any phase is asserted Verify the results with the indicated setting SYNCHRONISM CHECKING ELEMENT TESTS Pur...

Page 339: ... than the 59L setting Set the angle to 0 and the frequency to your nominal frequency The 25C 25M and 25T elements should all assert illuminating the corresponding target LEDs 8 Increase or decrease the frequency of the Y voltage input until the element under test deasserts LED extinguishes Record the results 9 Verify the results with the indicated 25SC or 25SM setting These settings are in slip cy...

Page 340: ...his action should start the external timer 11 Quickly apply A phase current above the 50FT setting When the TRIPA input is asserted before A phase current is applied A phase current must be applied before the 62TTdo timer expires This sequence simulates relay operation when used in a ring bus application 12 Shortly after applying current to the A phase the programmable output contact set in Step 1...

Page 341: ...PA input asserts the programmable output contact set in Step 1 should close indicating FBF bit assertion This action should stop the external timer Record the timer reading It should be close to the FCpu setting 6 Deassert the TRIPA input and shut off A phase current 7 This step is optional To test Scheme 2 logic operation under conditions that could represent normal relay breaker operation repeat...

Page 342: ...er operation repeat Steps 3 and 4 This time turn off A phase current 1 5 to 2 0 cycles before the 62FC timer expires The FBF bit should not assert When Scheme 3 is enabled the TRIP input is not latched Thus if TRIP input deassertion occurs while phase current is applied but before 62FC timer expiration the relay does not assert the FBF bit 8 Repeat Steps 3 4 5 6 and 7 optional for phases B and C 9...

Page 343: ...t the SER to trigger for the TRIPA 50FT and FBF elements Verify the settings with the SHO command and verify the SHO G command for TRIPA Setting Elements FTLOG 50FT TTpu TTdo TRIPA 50FT FBF 2 Connect an external timer and set it to start when the TRIPA input asserts and stop when the programmable output you set in Step 1 asserts 3 Apply A phase current above the 50FT setting The relay should gener...

Page 344: ...or the TRIPA 50FT and FBF elements Verify the settings with the SHO command and verify the SHO G command for TRIPA Setting Elements FTLOG 50FT FCpu TRIPA 50FT FBF 2 Connect an external timer and set it to start when the TRIPA input asserts and stop when the programmable output you set in Step 1 asserts 3 Apply A phase current above the 50FT setting The relay should generate an event report 4 Asser...

Page 345: ...nect an external timer and set it to start when the TRIPA input asserts and stop when the programmable output you set in Step 1 asserts 3 Apply A phase current above the 50LD setting Current should not exceed the 50FT setting 4 Assert the TRIPA input This starts the relay 62LP and 62LD timers The external timer should also start 5 Shortly after TRIPA input assertion the programmable output contact...

Page 346: ...ements LDLOG APpu AFpu TRIPA 52A 50FT FBF 2 Connect an external timer and set it to start when the TRIPA input asserts and stop when the programmable output you set in Step 1 asserts 3 Assert the 52AA input 4 Assert the TRIPA input This starts the relay 62AP and 62AF timers The external timer should also start 5 Shortly after TRIPA input assertion the programmable output contact set in Step 1 shou...

Page 347: ... that THLOG must be set to ON Setting Elements THLOG 50MN 26CF 37OP 87TH OPpu 52AA MCLOSE CLOSE 47Q not used CTF 50MNA 37OPA 87THA OPAD 52AA MCLOSE CLOSE 2 Use the HEA R command to reset the thermal models before each timing test 3 Connect an external timer and set it to start when you apply A phase current and stop when the programmable output you set in Step 1 asserts 4 Assert the CLOSE and or M...

Page 348: ...e thermal models before each timing test 12 Repeat Steps 4 11 for B and C phases 13 For each test the relay generated a sequential events record for the elements programmed in Step 1 View the SER using the SER command These time stamps will also verify the OPpu timer The OPpu time is the time between the assertion of 37OPA and the assertion of OPAD CIRCUIT BREAKER TRIP RESISTOR THERMAL FAILURE LOG...

Page 349: ...10 In Step 6 accumulation of breaker resistor energy equal to the 26TP thermal pending failure value can generate an event report You can set the 26TPA bit in a programmable output contact mask and perform Steps 4 5 6 7 8 and 9 for the trip resistor thermal pending failure logic 11 You may wish to test this logic for various values of input voltage current and power Use the HEAT command to display...

Page 350: ...imately 1 04 or 0 96 depending on which value was changed 9 Change the angle of the X or Y voltage by 2 Repeat Steps 4 5 and 6 The nulling angle should now be 2 10 Repeat Steps 2 through 9 for B and C phases 11 Optional Change the magnitudes and angles of the voltages and verify the voltage nulling tracking The relay will not track KTRK 0 if either voltage is below the 59L setting or TRIPA CLOSE o...

Page 351: ... of the A phase 4 Turn the voltage source off 0 0 V as you apply phase current above the 50LD setting This action should start the external timer 5 Shortly after you apply A phase current the programmable output contact set in Step 1 should close indicating FOBF bit assertion This action should stop the external timer Record the timer reading It should be close to the FFpu setting 6 Shut off A pha...

Page 352: ... TRIPA MCLOSE CLOSE and 52AA Setting Elements FOLOG FFpu FPpu 59L 50LD TRIPA CLOSE MCLOSE 52AA 50LD X59HA FOBF FOPF CLOSE MCLOSE TRIPA 52AA 2 Connect an external timer and set it to start when you apply A phase current and stop when the programmable output you set in Step 1 asserts 3 Apply 67 V which should be higher than the 59L setting to the X side voltage inputs of the phase under test 4 Turn ...

Page 353: ...eration of the current unbalance logic Reference Figure 3 23 Method 1 Using the SET command set an output to close when the UBBF element asserts and set the SER to trigger for the elements listed below Verify the settings with the SHO command and the SHO G command for MCLOSE and CLOSE Note that UBLOG must be set to ON Setting Elements UBLOG UCpu UFpu UPpu 50LD 46UB MCLOSE CLOSE 50LD 46A FOBF FOPF ...

Page 354: ...tion of 46A and the assertion of UBBF and UBPF respectively If current is applied before the CLOSE or MCLOSE input the UCpu time is the time between the assertion of the input and the assertion of UBBF with the UFpu time subtracted out LOSS OF DIELECTRIC LOGIC TEST Purpose Verify the loss of dielectric logic Reference Figure 3 26 Method 1 Using the SET command set one output to close when the LODB...

Page 355: ...nding outputs LODBF and LODPF STAGGERED CLOSE LOGIC TEST Purpose Verify the staggered close logic Reference Figure 4 1 Method 1 While the relay can use two different closing schemes only one is enabled at a time Select Scheme 1 by setting CLSLOG 1 in the relay setting group Using the SET command set an output to close when the CCA element asserts and set the SER to trigger for the listed elements ...

Page 356: ...controls the output contacts faster than the processing interval of the relay Use an oscilloscope to monitor the voltages and the output contact operation to verify the point at which the contacts close Using the SET R command set the SER to trigger for the listed elements Using the SET command set CLSA to control one of the fast high current interrupting output contacts One of these fast high cur...

Page 357: ...d C phase by comparing the CTB output pick up to the B phase voltage and the CTC output to the C phase voltage 8 Note that the zero crossing detection is based on A phase and it is assumed that B and C are 120 and 240 out of phase 9 Adjust the output timer settings such as ZCApu and PCApu for each phase to test these timers Remember that the relay is assuming balanced phase voltages 120 apart for ...

Page 358: ...manual close condition 4 Verify the timer reading is approximately the CLSdo setting 5 Apply 67 V to VAX and VAY 6 Assert the CLOSE input to indicate an automatic synchronous close condition 7 Assert the MCLOSE input to indicate a manual synchronous close condition 8 For each test the relay generated a sequential events record for the elements programmed in Step 1 View the SER using the SER comman...

Page 359: ...d RTA 4 Repeat Steps 2 and 3 for each phase TIME DELAYED RETRIP SCHEME 2 RETRIP LOGIC TEST Purpose Verify Scheme 2 of the retrip logic Reference Figure 4 11 Retrip logic diagram Method 1 While the relay can use two different retrip schemes only one is enabled at a time Select Scheme 2 by setting RTPLOG 2 in the relay setting group Using the SET command set an output to close when the RTA element a...

Page 360: ...ings with the SHO and the SHO G command Setting Elements TRLOG LDLOG M86T 50MD M2pu 52AA TRIPA 86BFT 86RS CTF TTF LBF 86BFT 86RS 52AA 50MD M86T TRIPA CTF TTF 2 Enable Scheme 2 of the failure to trip load current logic using SET LDLOG Save the settings This logic sets the LBF bit based on the breaker status and the TRIPA input 3 Connect an external timer and set it to start when the output contact ...

Page 361: ...ll be delayed 16 For each test the relay generated a sequential events record for the elements programmed in Step 1 View the SER using the SER command Verify M1 60 cycles from the assertion of 86RS to the deassertion of 86RS Verify M2pu from the assertion of 86BFT to the deassertion of 86BFT Verify M4 300 cycles from the deassertion of 86BFT to the assertion of 86RS LOCKOUT RELAY CONTROL SCHEME 2 ...

Page 362: ...on the timer Subtract the time recorded in Step 8 from the timer reading The difference should be approximately 5 seconds M4 fixed timer 12 Reconnect the timer to stop when the programmable output contact set to indicate MDT closes 13 Repeat Steps 4 5 6 and 7 Approximately M2pu time after the 86BFT output opens the MDT element should assert causing the programmable output contact set in Step 1 to ...

Page 363: ...tor of Serial Port 1 Method 1 Connect a source of demodulated IRIG B time code to the relay Serial Port 2 Pins 4 and 6 in series with a resistor to monitor the current Adjust the source to obtain an ON current of about 10 mA 2 Execute the IRIG command Make sure the relay clock displays the correct date and time 3 Optional Connect the demodulated IRIG B time code to the relay as in Step 1 but throu...

Page 364: ...unications port Troubleshooting Table All Front Panel LEDs Dark 1 Power is off 2 Blown power supply fuse 3 Input power not present 4 Self test failure 5 TAR F command improperly set Note For 1 2 3 and 4 the ALARM relay contacts should be closed System Does Not Respond to Commands 1 Communications device not connected to system 2 Relay or communications device at incorrect baud rate or other commun...

Page 365: ... error 4 Analog input cable between transformer termination and main board loose or defective 5 Check self test status with STA command 6 Check input voltages and currents with MET command and TRI and EVE sequence Time Command Displays the Same Time for Successive Commands 1 The digital signal processor has failed contact the factory Terminal Displays Meaningless Characters 1 Baud rate set incorre...

Page 366: ...L X issue the R_S command again Settings will return to factory defaults 2 If cause of the CR_RAM is unknown contact the factory Self Test Failure A D Converter 1 A D converter failure 2 RAM error not detected by RAM test Self Test Failure IO_BRD 1 I O board has been changed Execute the INITIO command 2 Ribbon cable disconnected between I O board and main board Reconnect and execute INITIO command...

Page 367: ...ated to making electric power safer more reliable and more economical We appreciate your interest in SEL products and we are committed to making sure you are satisfied If you have any questions please contact us at Schweitzer Engineering Laboratories 2350 NE Hopkins Court Pullman WA USA 99163 5603 Tel 509 332 1890 Fax 509 332 7990 We provide prompt courteous and professional service We appreciate ...

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Page 369: ...Date Code 20010731 Firmware Versions in This Manual i SEL 352 1 2 Instruction Manual TABLE OF CONTENTS APPENDIX A FIRMWARE VERSIONS IN THIS MANUAL A 1 ...

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Page 371: ... SEL 352 1 and SEL 352 2 Relays that contain firmware bearing the following part numbers and revision numbers most recent firmware listed at top Flash Firmware Part Revision No Description of Firmware SEL 352 2 R202 V0 Z101101 D20010420 SEL 352 2 R102 V0 Z001001 D20010420 These firmware versions differ from previous versions as follows Corrected Kang setting prompt Removed as valid element name Ad...

Page 372: ...EL 352 1 R101 This firmware includes Improved Subsidence Current Logic Fixed bug in logic which could affect performance of VAX and VAY 59H range changed IHA IHB IHC now allow two decimal places in SELOGIC control equation Compares SEL 352 1 R100 This firmware is the initial release for the SEL 352 1 Relay Additions were made to the SEL 352 firmware version R102 to improve performance These includ...

Page 373: ...de Instructions i SEL 352 1 2 Instruction Manual TABLE OF CONTENTS APPENDIX B FIRMWARE UPGRADE INSTRUCTIONS B 1 Firmware Flash Upgrade Instructions B 1 Important Note Regarding Settings B 1 Required Equipment B 1 Upgrade Procedure B 1 ...

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Page 375: ...T Personal computer Terminal emulation software that supports XMODEM CRC protocol e g Procomm Plus Relay Gold Microsoft Windows Terminal and HyperTerminal SmartCOM or CROSSTALK Serial communications cable SEL 234A or equivalent Disk containing firmware upgrade file UPGRADE PROCEDURE The instructions below assume you have a working knowledge of your personal computer terminal emulation software In ...

Page 376: ...er of a line This may make it appear that the relay is not functioning properly when just the ENTER key is pressed on the connected PC even though everything is OK Issue HEL ENTER ENTER in earlier relays to list the commands available in SELBoot help SELboot 3xx R100 bau rate Set baud rate to 300 1200 2400 4800 9600 19200 or 38400 baud era Erase the existing relay firmware exi Exit this program an...

Page 377: ...t the transfer quickly enough within about 18 seconds it may time out and respond Remote system is not responding If this happens begin again in Step 8 above 12 Start the file transfer by selecting the Send File function in your terminal emulation software Use the XMODEM or 1k XMODEM fastest protocol and send the file that contains the new firmware e g Relay S19 Note The file transfer takes approx...

Page 378: ...ion 8 Serial Port Communications and Commands for factory default passwords e Issue the Restore Settings R_S command to restore the factory default settings in the relay For a 1 Amp relay type R_S 1 This takes about two minutes after which time the EN LED will illuminate Note If the relay asks for a part number to be entered use the number from the label on the firmware diskette or from the new pa...

Page 379: ...RKE ENTER 15 Execute the Status STA command to verify that all relay self test parameters are within tolerance 16 Apply current and voltage signals to the relay Issue the MET command and verify that the current and voltage signals are correct Issue the Trigger TRI and Event EVE commands Verify that the current and voltage signals are correct in the event report The relay is now ready for your comm...

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Page 381: ...Date Code 20010731 SEL Distributed Port Switch Protocol LMD i SEL 352 1 2 Instruction Manual TABLE OF CONTENTS APPENDIX C SEL DISTRIBUTED PORT SWITCH PROTOCOL LMD C 1 Settings C 1 Operation C 1 ...

Page 382: ......

Page 383: ... asserts This delay accommodates transmitters with a slow rise time OPERATION 1 The relay ignores all input from this port until it detects the prefix character and the two byte address 2 Then it asserts the RTS line which you can use to key a serial data transmitter The relay enables echo and message transmission If the port had received an XOFF character the relay performs as if it received an X...

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Page 385: ...ary Message List D 1 ASCII Configuration Message List D 1 Message Definitions D 2 A5C0 Relay Definition Block D 2 A5C1 Fast Meter Configuration Block D 2 A5D1 Fast Meter Data Block D 4 A5B9 Fast Meter Status Acknowledge Message D 4 A5CE Fast Operate Configuration Block D 5 A5E0 Fast Operate Remote Bit Control D 6 A5E3 Fast Operate Breaker Control D 7 ID Command Response D 7 DNA Command Response D ...

Page 386: ......

Page 387: ... connected to the other end of the link requires software that uses the separate data streams to exploit this feature The binary commands and ASCII commands can also be accessed by a device that does not interleave the data streams SEL Application Guide AG95 10 Configuration and Fast Meter Messages is a comprehensive description of the SEL binary messages Below is a description of the messages pro...

Page 388: ... bit A5C100000000 Reconfigure Fast Meter configuration hex 0100 SEL protocol Fast Operate 0101 LMD protocol Fast Operate 0005 DNP protocol 00 Reserved for future use checksum 1 byte checksum of preceding bytes A5C1 Fast Meter Configuration Block In response to the A5C1 request the relay sends the following block Data Description A5C1 Fast Meter command 94 hex Length 01 One status flag byte 01 Scal...

Page 389: ...loat 008E Scale factor offset hex 564358000000 Analog channel name VCX 00 Analog channel type integer 01 Scale factor type float 008A Scale factor offset hex 494300000000 Analog channel name IC 00 Analog channel type integer 01 Scale factor type float 0086 Scale factor offset hex 564359000000 Analog channel name VCY 00 Analog channel type integer 01 Scale factor type float 008E Scale factor offset...

Page 390: ...ding bytes A5B9 Fast Meter Status Acknowledge Message The relay clears the Fast Meter message A5D1 Status Byte when it receives the A5B9 request The Status Byte contains three active bits as follows Data Name Set Criteria Reset Criteria bit 2 STWARN Self test warning A5B9 Status Acknowledge Message is received or Diagnostics pass after a power up bit 3 STFAIL Self test failure A5B9 Status Acknowle...

Page 391: ... bit RB4 23 Operate code set remote bit RB4 43 Operate code pulse remote bit RB4 04 Operate code clear remote bit RB5 24 Operate code set remote bit RB5 44 Operate code pulse remote bit RB5 05 Operate code clear remote bit RB6 25 Operate code set remote bit RB6 45 Operate code pulse remote bit RB6 06 Operate code clear remote bit RB7 26 Operate code set remote bit RB7 46 Operate code pulse remote ...

Page 392: ...suspended during relay setting changes a setting group change power up or if the relay is disabled The external device sends the following message to perform a remote bit operation Data Description A5E0 Command 06 Message length hex 1 byte Operate code 00 0F clear remote bit RB1 RB16 20 2F set remote bit RB1 RB16 40 4F pulse 1 8 cycle remote bit RB1 RB16 1 byte Operate validation 4 Operate code 1 ...

Page 393: ... JMP6B is in place on the SEL 352 Relay main board ID Command Response In response to the ID command the relay sends the firmware ID relay TRMID setting and the Modbus device code as follows STX FID STRING ENCLOSED IN QUOTES yyyy CR TRMID SETTING ENCLOSED IN QUOTES yyyy CR 31 yyyy CR ETX where STX is the STX character 02 CR is the carriage return character 13 ETX is the ETX character 03 yyyy is th...

Page 394: ...aracter 03 yyyy is the 4 byte ASCII hex representation of the checksum for the line indicates an unused bit location The DNA command is available from Access Level 1 and higher BNA Command Response In response to the BNA command the relay sends names of the bits transmitted in the Status Byte in the A5D1 message The first name is the MSB the last name is the LSB The BNA message is STX STSET STFAIL...

Page 395: ...Commands i SEL 352 1 2 Instruction Manual TABLE OF CONTENTS APPENDIX E COMPRESSED ASCII COMMANDS E 1 Introduction E 1 CASCII Command E 1 CSTATUS Command E 3 CBREAKER Command E 4 CHISTORY Command E 4 CTARGET Command E 5 CEVENT Command E 5 ...

Page 396: ......

Page 397: ...des data for an external computer to extract data from other compressed ASCII commands The following example includes the lines an SEL 352 2 Relay would send to describe the Percent Wear feature To obtain the configuration message for the compressed ASCII commands available in the SEL 352 relay type CAS CR The relay sends STX CAS 7 01A8 CR CST 1 01B7 CR 1H FID 022C CR 1D 35S 0210 CR 7H MONTH_ DAY_...

Page 398: ... EVENT 0E10 CR 1D F I I I 7S 04C0 CR 11H VAY kV VBY kV VCY kV VAX kV VBX kV VCX kV IA IB IC TRIG DIGITAL ELEMENT NAMES yyyy CR 60D F F F F F F F F F 1S 24S 099D CR CEV C 1 020E CR 1H FID 022C CR 1D 35S 0210 CR 7H MONTH_ DAY_ YEAR_ HOUR_ MIN_ SEC_ MSEC_ 0E52 CR 1D I I I I I I I 05F4 CR 5H FREQ SAM CYC_A SAM CYC_D NUM_OF_CYC EVENT 0E10 1D F I I I 7S 04C0 CR 11H VAY kV VBY kV VCY kV VAX kV VBX kV VCX...

Page 399: ...character string A compressed ASCII command may require multiple header and data configuration lines If a compressed ASCII request is made for data that are not available e g the history buffer is empty or invalid event request the relay responds with the following message STX No Data Available 0668 CR ETX CSTATUS COMMAND Display status data in compressed ASCII format by sending CST CR The relay s...

Page 400: ...R xxxx xxxx xxxx xxxx xxxx xxxx LAST_ELECT yyyy CR xxxx xxxx xxxx xxxx xxxx xxxx LAST_MECH yyyy CR xxxx xxxx xxxx xxxx xxxx xxxx TOT_ENERGY yyyy CR xxxx xxxx xxxx xxxx xxxx xxxx TOT_CURR yyyy CR TRIPA TRIPB TRIPC LABEL 07A3 CR xxxx xxxx xxxx PCT_WEAR yyyy CR ETX where the second month day and year correspond to last time breaker summary was cleared xxxx are the data values corresponding to the fir...

Page 401: ...t selector s as seen above If no parameters are specified the relay defaults to four samples per cycle resolution and an event report length of 15 cycles This default response is required for compatibility with the SEL 2020 and SEL 2030 The relay sends STX FID 0143 CR FID SEL 352 1 XXXX DXXXXXX yyyy CR MONTH_ DAY_ YEAR_ HOUR_ MIN_ SEC_ MSEC_ 0D63 CR xxxx xxxx xxxx xxxx xxxx xxxx xxxx yyyy CR FREQ ...

Page 402: ...onding to the preceding label lines yyyy is the 4 byte hex ASCII representation of the checksum z is for pre fault record and empty for all others RLY_BITS refers to the relay element data in hex ASCII For example if the RLY_BITS 9B2400000000000000000000 1001101100100100 then Y59L3 50LDB 50LDA 50FTB 50FTA Y27D3 50MDC would be set and the rest of the elements would be clear ...

Page 403: ...2 Resistor Thermal Protection Elements F 2 Flashover Protection Elements F 2 Unbalance Protection Elements F 2 Loss of Dielectric Protection Elements F 2 Controlled Close Elements F 2 Breaker Alarm Elements F 2 Circuit Breaker Retrip Elements F 2 SELOGIC Control Equation SET B Elements F 2 Logic Output Elements F 3 86BF Trip and Reset Elements F 3 Contact Output Elements and Display Points F 3 TAB...

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Page 405: ...0MDA 4 47Q 37OP 25T 46P 87THC 87FOC 87THB 87FOB 5 X59LC X59HC X27DB X59LB X59HB X27DA X59LA X59HA 6 ZERO Y27DC Y59LC Y27DB Y59LB Y27DA Y59LA X27DC 7 ONE 50MNC 50MNB 50MNA 87F 87H 87TH X59H 8 25M 25C 46C 46B 46A 50MD 50LD 50FT 9 Y47Q X47Q 37OPC 37OPB 37OPA 87HC 87HB 87HA 10 CCMD TCMD XNTC XPTC XNTB XPTB XNTA XPTA 11 YNTC YPTC YNTB YPTB YNTA YPTA 12 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 15 LB16 LB15 LB14 ...

Page 406: ...VCR LVCS LVBQ 44 FFCD FFC FFBD FFB FFAD FFA FPCD FPC Unbalance Protection Elements 45 UPAD UPA LUQ LUR LUS UCD UC 46 UFBD UFB UFAD UFA UPCD UPC UPBD UPB 47 UFCD UFC Loss of Dielectric Protection Elements 48 LT3D LT3 LT2D LT2 LT1D LT1 Controlled Close Elements 0 7 5 5 5 5 5 5 5 6 3 3 6 7 6 7 6 1 7 6 1 7 7 7 0 7 3 1 3 3 1 3 3 3 1 3 3 3 1 6 1 1 7 7 7 1 3 1 Breaker Alarm Elements 53 CAMT BPF BDNC TWO ...

Page 407: ... OUT216 76 OUT301 OUT302 OUT303 OUT304 OUT305 OUT306 OUT307 OUT308 77 OUT309 OUT310 OUT311 OUT312 OUT313 OUT314 OUT315 OUT316 78 DP8 DP7 DP6 DP5 DP4 DP3 DP2 DP1 79 DP16 DP15 DP14 DP13 DP12 DP11 DP10 DP9 Table F 2 Relay Word Bit Summary Table Elements Alphabetically Description Relay Word Row ALARM Asserted when there is no self test ALARM condition 73 The asterisk symbol is a place holder for an u...

Page 408: ...ent for Load or Line charging current conditions for A B or C phase and a general element for assertion of any phase 8 2 2 2 50MD 50MDA 50MDB 50MDC Overcurrent element for Motor operated disconnect conditions for A B or C phase and a general element for assertion of any phase 8 3 3 3 50MNA 50MNB 50MNC Minimum current detector 1 A secondary for A B or C phase 7 7 7 50N Ground overcurrent element op...

Page 409: ...any phase 7 3 4 4 A A phase Target LED indicates an A phase operation condition View this bit with the TAR command but it cannot be used in logic 1 AF AFD Load current logic timer 62AF Input AF and output AFD 33 33 AP APD Load current logic timer 62AP input AP and output APD 33 33 B B phase target LED indicates a B phase operation condition View this bit with the TAR command but it cannot be used ...

Page 410: ...D CTBD CTCD 1 4 cycle Controlled close Timer output for A B or C phase 52 52 52 CTF Close resistor Thermal Failure logic output 66 CWO Current While Open alarm 53 DP1 DP8 DP9 DP16 Display Point Elements 78 79 EN Enable target LED indicates relay status View this bit with the TAR command but it cannot be used in logic 0 F1A F1AD F1B F1BD F1C F1CD F2A F2AD F2B F2BD F2C F2CD F3A F3AD F3B F3BD F3C F3C...

Page 411: ...t cannot be used in logic 1 FOBF Flashover logic Breaker Failure output 66 FPA FPAD FPB FPBD FPC FPCD Flashover logic timer Pending failure inputs and outputs for A B and C phase 43 43 43 43 44 44 FTRS Failed CB Trip Resistors put in Service alarm 53 IN101 IN106 Input contacts assert when control voltage is applied to input terminals 17 IN201 IN208 Input contacts assert when control voltage is app...

Page 412: ...4 24 24 24 25 24 24 L1MQ L1MR L1MS L2MQ L2MR L2MS L3MQ L3MR L3MS Trip and reset logic Latch outputs Reset inputs and Set inputs 69 69 69 70 70 70 70 70 70 L2AQ L2AR L2AS L2BQ L2BR L2BS L2CQ L2CR L2CS L3AQ L3AR L3AS L3BQ L3BR L3BS L3CQ L3CR L3CS L4AQ L4AR L4AS L4BQ L4BR L4BS L4CQ L4CR L4CS General purpose SELOGIC Control Equation Set B Latch outputs Reset inputs and Set inputs 57 57 57 57 57 57 58 ...

Page 413: ... L6BR L6BS L6CQ L6CR L6CS L7AQ L7AR L7AS L7BQ L7BR L7BS L7CQ L7CR L7CS General purpose SELOGIC Control Equation Set B Latch outputs Reset inputs and Set inputs 61 61 61 61 61 61 62 62 61 63 63 63 63 63 63 64 63 63 64 64 64 64 64 64 65 65 64 LB1 LB8 LB9 LB16 Local Control Bits 14 15 LBF Load and Line charging current logic Breaker Failure output 66 LDA LDAD LDB LDBD LDC LDCD Load current logic time...

Page 414: ... LLAR LLAS LLBQ LLBR LLBS LLCQ LLCR LLCS Load current logic Latch outputs Reset inputs and Set inputs for A B and C phase 30 30 30 30 30 30 31 30 30 LOAD Load target LED indicates an operation under load conditions View this bit with the TAR command but it cannot be used in logic 1 LOD1 LOD2 Loss of Dielectric level 1 and 2 input functions 23 23 LODBF Loss of Dielectric Breaker Failure output 67 L...

Page 415: ...A B and C phase 55 55 55 55 55 55 56 55 55 LT1 LT1D LT2 LT2D LT3 LT3D Loss of dielectric Timers inputs and outputs 48 48 48 48 48 48 LTAQ LTAR LTAS LTBQ LTBR LTBS LTCQ LTCR LTCS Thermal logic Latch outputs Reset inputs and Set inputs for A B and C phase 35 34 34 35 35 35 35 35 35 LUQ LUR LUS Current Unbalance logic Latch output Reset input and Set input 45 45 45 LVAQ LVAR LVAS LVBQ LVBR LVBS LVCQ ...

Page 416: ...ual Close input Timer input and output 49 50 MDT Motor operated Disconnect Trip logic output 71 MER Event trigger bit see MER setting 71 MOD Motor Operated Disconnect status target LED View this bit with the TAR command but it cannot be used in logic 0 MODST MOD Status input function 23 ONE Always one 7 OPA OPAD OPB OPBD OPC OPCD Thermal logic timer inputs and outputs for A B and C phase 34 34 34 ...

Page 417: ...Controlled close timers inputs and outputs for A B and C phase 49 49 49 49 49 49 RCLS Close dropout timer CLSdo setting reset equation 49 RT1 RT1D RT2 RT2D RT3 RT3D Circuit breaker Retrip Timers inputs and outputs for A B and C phase 56 56 56 56 56 56 RTA RTB RTC Retrip logic output for A B and C phase 67 67 67 SAA SAB SAC General purpose SELOGIC Control Equation Set A outputs for A B and C phase ...

Page 418: ...outputs 59 59 59 59 59 59 62 62 62 62 62 62 TCMD OPEN Command 10 THERM Thermal target LED indicates a thermal condition View this bit with the TAR command but it cannot be used in logic 1 TRIP Trip target LED indicates a trip condition View this bit with the TAR command but it cannot be used in logic 0 TRIP3 TRIPA TRIPB TRIPC Trip input functions for three pole trip and single phase inputs TRIP3 i...

Page 419: ...7 47 UPA UPAD UPB UPBD UPC UPCD Current Unbalance logic Pending failure timer inputs and outputs for A B or C phase 45 45 46 46 46 46 X27D3 X27DA X27DB X27DC X Side undervoltage element A B or C phase and a general element for assertion of all three phases 3 5 5 6 X47Q X side negative sequence overvoltage element operates on V2 9 X59H X59HA X59HB X59HC X Side High set overvoltage element for A B o...

Page 420: ...47Q Y side negative sequence overvoltage element operates on V2 9 Y59L3 Y59LA Y59LB Y59LC Y Side overvoltage element for A B or C phase and a general element for assertion of all three phases 2 6 6 6 YNTA YNTB YNTC YPTA YPTB YPTC Y side Positive P and Negative N Trapped charge detection for A B or C phase 11 11 11 11 11 11 ZCNA ZCNB ZCNC ZCPA ZCPB ZCPC Positive P and Negative N Zero Crossings for ...

Page 421: ... Link Operation G 2 Data Access Method G 2 Device Profile G 3 Object Table G 6 Data Map G 8 Relay Summary Event Data G 15 Point Remapping G 16 Introduction G 16 Inputs G 16 Modem Support G 18 Virtual Terminal G 18 TABLES Table G 1 Data Access Methods G 3 Table G 2 SEL 352 Relay DNP Object Table G 6 Table G 3 SEL 352 Relay DNP Data Map G 9 Table G 4 SEL 352 2 Relay Binary Input Lookup Table G 13 ...

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Page 423: ...30 characters MDTIME Time to attempt dial 5 300 seconds 60 MDRETI Time between dial out attempts 5 3600 seconds 120 MDRETN Number of dial out attempts 0 5 3 ECLASSA Class for Analog event data 0 for no event 1 3 2 ECLASSB Class for Binary event data 0 for no event 1 3 1 ECLASSC Class for Counter event data 0 for no event 1 3 0 DECPLA Currents scaling 0 3 decimal places 1 DECPLV Voltage scaling 0 3...

Page 424: ...r the PSTDLY time delay expires DATA LINK OPERATION It is necessary to make two important decisions about the data link layer operation One is how to handle data link confirmation the other is how to handle data link access If a highly reliable communications link exists the data link access can be disabled altogether which significantly reduces communications overhead Otherwise it is necessary to...

Page 425: ...elies on unsolicited reports only Set CLASS to a non zero value Set UNSOL Y Set NUMEVE and AGEEVE according to how often messages are desired to be sent DEVICE PROFILE The following is the device profile as specified in the DNP 3 00 Subset Definitions document DNP 3 00 DEVICE PROFILE DOCUMENT This document must be accompanied by a table having the following headings Object Group Request Function C...

Page 426: ...r Fixed at r Variable ã Configurable Complete Appl Fragment ã None r Fixed at r Variable r Configurable Application Confirm r None r Fixed at r Variable ã Configurable Complete Appl Response ã None r Fixed at r Variable r Configurable Others Attach explanation if Variable or Configurable was checked for any time out Sends Executes Control Operations WRITE Binary Outputs r Never ã Always r Sometime...

Page 427: ...ry Input Change With Time r Binary Input Change With Relative Time r Configurable attach explanation Sends Unsolicited Responses r Never ã Configurable attach explanation r Only certain objects r Sometimes attach explanation ã ENABLE DISABLE UNSOLICITED Function codes supported Sends Static Data in Unsolicited Responses ã Never r When Device Restarts r When Status Flags Change No other options are...

Page 428: ... Control Relay Output Block 3 4 5 6 17 28 129 echo of request 12 2 Pattern Control Block 12 3 Pattern Mask 20 0 Binary Counter All Variations 1 0 1 6 7 8 20 1 32 Bit Binary Counter 20 2 16 Bit Binary Counter 20 3 32 Bit Delta Counter 20 4 16 Bit Delta Counter 20 5 32 Bit Binary Counter Without Flag 1 0 1 6 7 8 129 0 1 7 8 20 6 16 Bit Binary Counter Without Flag 1 0 1 6 7 8 129 0 1 7 8 20 7 32 Bit ...

Page 429: ...7 8 30 1 32 Bit Analog Input 1 0 1 6 7 8 129 0 1 7 8 30 2 16 Bit Analog Input 1 0 1 6 7 8 129 0 1 7 8 30 3 32 Bit Analog Input Without Flag 1 0 1 6 7 8 129 0 1 7 8 30 4 16 Bit Analog Input Without Flag 1 0 1 6 7 8 129 0 1 7 8 31 0 Frozen Analog Input All Variations 31 1 32 Bit Frozen Analog Input 31 2 16 Bit Frozen Analog Input 31 3 32 Bit Frozen Analog Input With Time of Freeze 31 4 16 Bit Frozen...

Page 430: ...29 07 quantity 1 60 0 All Classes of Data 1 20 21 6 60 1 Class 0 Data 1 6 60 2 Class 1 Data 1 20 21 6 7 8 60 3 Class 2 Data 1 20 21 6 7 8 60 4 Class 3 Data 1 20 21 6 7 8 70 1 File Identifier 80 1 Internal Indications 2 0 1 index 7 81 1 Storage Object 82 1 Device Profile 83 1 Private Registration Object 83 2 Private Registration Object Descriptor 90 1 Application Identifier 100 1 Short Floating Poi...

Page 431: ...2 00 15 Remote bits RB1 RB16 10 12 16 Pulse Open breaker command TCMD 10 12 17 Pulse Close breaker command CCMD 10 12 18 23 Reserved 10 12 24 31 Remote bit pairs RB1 RB16 10 12 32 Open Close pair for breaker 10 12 33 38 Reserved 10 12 39 Clear breaker monitor 10 12 40 Reset front panel targets 10 12 41 Read next relay event 20 22 00 Active settings group 20 22 01 Breaker Trip A 20 22 02 Breaker Tr...

Page 432: ...XAB magnitude 30 32 10 VXBC magnitude 30 32 11 VXCA magnitude 30 32 12 VYA magnitude 30 32 13 VYB magnitude 30 32 14 VYC magnitude 30 32 15 VYAB magnitude 30 32 16 VYBC magnitude 30 32 17 VYCA magnitude 30 32 18 DVA magnitude 30 32 30 32 19 20 DVB magnitude DVC magnitude 30 32 30 32 30 32 30 32 30 32 30 32 30 32 30 32 30 32 21 22 23 28 29 34 35 40 41 46 47 52 53 58 59 61 MW MVAR Avg Electrical Tim...

Page 433: ...t element of the Relay Word row of the element in question Count over to the original element and add that to get the point index Binary Inputs 800 1599 are derived from the Sequential Events Recorder SER and carry the time stamp of actual occurrence Add 800 to the Binary Input Point column to get the point mapping for points 800 1599 Static reads from these inputs will show the same data as a rea...

Page 434: ...Pulse RB4 Pulse RB3 Pulse RB4 Pulse RB3 Pulse RB4 Pulse RB3 26 Pulse RB6 Pulse RB5 Pulse RB6 Pulse RB5 Pulse RB6 Pulse RB5 27 Pulse RB8 Pulse RB7 Pulse RB8 Pulse RB7 Pulse RB8 Pulse RB7 28 Pulse RB10 Pulse RB9 Pulse RB10 Pulse RB9 Pulse RB10 Pulse RB9 29 Pulse RB12 Pulse RB11 Pulse RB12 Pulse RB11 Pulse RB12 Pulse RB11 30 Pulse RB14 Pulse RB13 Pulse RB14 Pulse RB13 Pulse RB14 Pulse RB13 31 Pulse R...

Page 435: ...6A 50MD 50LD 50FT 55 48 9 Y47Q X47Q 37OPC 37OPB 37OPA 87HC 87HB 87HA 63 56 10 CCMD TCMD XNTC XPTC XNTB XPTB XNTA XPTA 71 64 11 YNTC YPTC YNTB YPTB YNTA YPTA 79 72 12 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 87 80 13 RB16 RB15 RB14 RB13 RB12 RB11 RB10 RB9 95 88 14 LB8 LB7 LB6 LB5 LB4 LB3 LB2 LB1 103 96 15 LB16 LB15 LB14 LB13 LB12 LB11 LB10 LB9 111 104 16 BCW 50R 50RC 50RB 50RA 119 112 17 IN106 IN105 IN104 I...

Page 436: ...3B F3AD F3A F2CD F2C F2BD F2B 311 304 41 LHBQ LHBR LHBS LHAQ LHAR LHAS F3CD F3C 319 312 42 LVBR LVBS LVAQ LVAR LVAS LHCQ LHCR LHCS 327 320 43 FPBD FPB FPAD FPA LVCQ LVCR LVCS LVBQ 335 328 44 FFCD FFC FFBD FFB FFAD FFA FPCD FPC 343 336 Unbalance Protection Elements 45 UPAD UPA LUQ LUR LUS UCD UC 351 344 46 UFBD UFB UFAD UFA UPCD UPC UPBD UPB 359 352 47 UFCD UFC 367 360 Loss of Dielectric Protection...

Page 437: ...s 73 ALARM OUT107 OUT106 OUT105 OUT104 OUT103 OUT102 OUT101 575 568 74 OUT201 OUT202 OUT203 OUT204 OUT205 OUT206 OUT207 OUT208 583 576 75 OUT209 OUT210 OUT211 OUT212 OUT213 OUT214 OUT215 OUT216 591 584 76 OUT301 OUT302 OUT303 OUT304 OUT305 OUT306 OUT307 OUT308 599 592 77 OUT309 OUT310 OUT311 OUT312 OUT313 OUT314 OUT315 OUT316 607 600 78 DP8 DP7 DP6 DP5 DP4 DP3 DP2 DP1 615 608 79 DP16 DP15 DP14 DP1...

Page 438: ...checksum The DNP command is only available if DNP has been selected on one of the ports If the DNP command is issued without parameters the relay displays all of the maps with the following format DNP ENTER Binary Inputs Default Map Binary Outputs Default Map Counters Default Map Analog Inputs 112 28 17 35 1 56 57 58 59 60 61 62 63 64 65 66 67 100 101 102 103 Analog Outputs Off If the DNP command ...

Page 439: ...s referenced more than once changes not saved xx is not a valid index changes not saved Invalid format changes not saved In addition to re mapping these commands can be used on analog inputs to create custom scaling and dead bands per point Scaling is done by adding a semicolon and scaling factor to a point reference The base value will be multiplied by the scaling factor before reporting it This ...

Page 440: ...in and try MDRETN times before giving up If it fails to connect in the first try it will try again at a later time every six hours If the relay initiates a connection it shall disconnect once there have been no transactions for TIMEOUT time using the disconnect command ATH CR Also if an outside caller connects to the modem in the SEL 352 Relay the SEL 352 Relay will disconnect the modem if there h...

Page 441: ...l Port number by responding to a Master READ FC 1 request of object 113 Messages can flow in either direction at any time however the relay sends messages only at the request of the Master There are no explicit procedures for the initiation or conclusion of a VT session i e implicit connections exist by the mere presence of a VT compatible Slave IED Virtual terminal supports all ASCII commands lis...

Page 442: ......

Page 443: ...elay date according to the format setting DATE_F Set relay date to d1 If the date format setting DATE_F MDY d1 is m d y If DATE_F YMD d1 is y m d 1 OTHER EVE n A Ss Lc Display an event report with VX and I channels n specifies event number according to the HIS command A specifies the alternate report showing VY not VX and I Ss specifies the samples per cycle s 4 8 16 64 Lc specifies the length in ...

Page 444: ... reporting Aliases SER BALARM settings Edit Local Bit and Display Point text settings Give a setting name to jump to that setting immediately The TERSE option disables the setting verification display 2 2 2 2 2 SET SET SHO n SHO G SHO P n SHO R SHO T setting A Show group n n 1 2 or 3 relay settings Show global inputs relay configuration settings Show serial port n n 1 to 4 settings Defaults to the...

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