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RFL Electronics GARD 8000, Instruction Manual

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RFL Electronics GARD 8000 Instruction Manual Download Page 183

Description of Operation 
 

GARD 8000 Distance Relay 

 

RFL Electronics Inc. 

9.22

 

TRIP LOGIC 

 

The GARD 8000 Distance Relay trip logic combines all measuring elements set to produce tripping 
into one main TRIP signal.  

 

Weak Infeed

Distance

Distance Pilot Trip

Trip Open Phase

(Broken concuctor)

Trip Undervoltage

Trip Pole

Discordance

OST

Phase

Overvoltage Trip

Ground

Overvoltage Trip

Thermal Trip

Block Distance

Step Distance Trip

Distance Pilot Trip

Trip 50-1 Q

Trip 50-1 G

Pilot Trip 67

Trip 50Q

Trip 50G

Trip 51Q

Trip 51G

Trip 50P

Trip 51P

Weak Infeed 67

TRIP

Frequency Trip

Stub bus trip

Remote open

breaker (load loss)

Close-Into-Fault

Block Trip

Fault Detector

Pilot Trip 67

0

T

Phase A Current

Supervision

Phase B Current

Supervision

Phase C Current

Supervision

 

Figure 9-65. Distance Module Trip Logic 

 

 

 
 
 
 
 
 
 
 
 
 
 

August 1, 2009 

9-75 

973.334.3100 

Summary of Contents for GARD 8000

Page 1: ...en permission is given by RFL Electronics Inc This manual has been compiled and checked for accuracy The information in this manual does not constitute a warranty of performance RFL Electronics Inc re...

Page 2: ...ustomer Service facility in Boonton New Jersey RFL warrants product repair from one year from the date of repair or the balance of the original warranty whichever is longer This warranty does not appl...

Page 3: ...CLOSER AND SYNC CHECK 7 24 7 6 BREAKER FAILURE 7 27 7 7 VOLTAGE ELEMENTS 7 28 7 8 FAULT RECORDER DFR 7 30 7 9 OSCILLOGRAPHY MASK 7 31 7 10 SOE MASK 7 33 SECTION 8 DISTANCE RELAY SETTING EXAMPLES 8 1 8...

Page 4: ...11 2 FACTORY DEFAULT PROGRAMMING 11 1 11 3 INPUTS 11 1 11 4 OUTPUTS 11 4 11 5 ZIVERCOM 11 6 11 6 DISTANCE MODULE COMPLETE SIGNAL LIST 11 24 SECTION 12 DISTANCE RELAY COMMISSIONING 12 1 12 1 EQUIPMENT...

Page 5: ...0 Zone Logic 9 15 Figure 9 11 Stepped Distance Logic 9 15 Figure 9 12 Zone 1 Extension 9 16 Figure 9 13 Permissive Underreach Transfer Trip PUTT 9 17 Figure 9 14 PUTT 9 18 Figure 9 15 Direct Transfer...

Page 6: ...or Phase Overvoltage units 9 67 Figure 9 61 Rate of change of frequency 9 69 Figure 9 62 Breaker Failure Relay 9 71 Figure 9 63 Synchro and Energizing Check Logic 9 74 Figure 9 64 Pole Discordance Log...

Page 7: ...9 14 Phase Directional Element 9 56 Table 9 15 Directional Ground Element 9 58 Table 9 16 Directional Ground Element Current Element 9 59 Table 9 17 Directional Negative Sequence Element 9 60 Table 9...

Page 8: ...Center will be updated regularly so the latest information is always at your fingertips Registration is free easy and ensures your access to the Resource Center at any time To register please use the...

Page 9: ...UNIT MAY HAVE HIGH VOLTAGE CAUTION 3U GARD Unit shown position of labels on 6U unit similar CAUTION FOR YOUR SAFETY THE INSTALLATION OPERATION AND MAINTENANCE OF THIS EQUIPMENT SHOULD ONLY BE PERFORM...

Page 10: ...orarily grounding it This will remove any dangerous voltages that may still be present after power is removed DO NOT SUBSTITUTE PARTS OR MODIFY EQUIPMENT Because of the danger of introducing additiona...

Page 11: ...PED WITH FIBER OPTIC INPUT OUTPUT MODULES THAT HAVE FIBER OPTIC EMITTER HEADS FIBER OPTIC EMITTER HEADS USE A LASER LIGHT SOURCE THAT PRODUCE INVISIBLE RADIATION FIBER OPTIC COMMUNICATION SYSTEMS ARE...

Page 12: ...January 2009 Section 2 March 1 2009 Section 3 March 1 2009 Section 4 March 1 2009 Section 5 March 1 2009 Section 6 March 1 2009 Section 7 July 21 2009 Section 8 August 1 2009 Section 9 August 1 2009...

Page 13: ...Document Release 3 1 09 TG 8 1 09 New Section 8 added Distance Relay Setting Examples Remaining sections moved up one section Section 13 added Application Notes 8 1 09 TG 4 1 10 Addition of new secti...

Page 14: ...GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank April 1 2010 xiv 973 334 3100...

Page 15: ...t Information GARD 8000 Distance Relay RFL Electronics Inc SECTION 1 PRODUCT INFORMATION Please go to the next page for the following Data Sheet GARD 8000 Distance Relay Module January 2009 1 1 973 33...

Page 16: ...Product Information GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank January 2009 1 2 973 334 3100...

Page 17: ...vercurrent stub bus and thermal protection open phase and breaker failure detectors Frequency measuring elements over underfrequency and rate of change of frequency The distance measuring elements may...

Page 18: ...General Description and Overview GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank March 1 2009 2 2 973 334 3100...

Page 19: ...otation ABC or ACB Metering Accuracy Voltages 0 1 60 300V Currents 5A nominal 2 mA 0 1 0 5 160A 1A nominal 0 5mA 0 1 0 1 30A Phase angle 0 3 deg Power factor 0 001 Frequency 0 001 Hz Active reactive p...

Page 20: ...teristic angle 0 90 deg Minimum polarizing voltage 0 00 10 00 V NegativeorZerosequencegrounddirectionalpolarization Time Overcurrent Elements 5A nominal 0 20 25 00 A 1A nominal 0 04 5 00 A Time Dial A...

Page 21: ...300 00 sec Frequency Elements Pick up range 40 00 70 00 Hz Undervoltage inhibit 20 150 V Rate of change 0 5 10 00 Hz s Synchronism Check Elements Voltage difference 2 30 Phase angle 5 80 deg Slip fre...

Page 22: ...System Specifications GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank March 1 2009 3 4 973 334 3100...

Page 23: ...Three Phase 0 5 10 15 20 25 10 20 30 40 50 60 70 80 90 of set reach milliseconds SIR 0 1 SIR 1 SIR 10 Figure 4 1 Three Phase Operating Times Phase Phase 0 5 10 15 20 25 30 10 20 30 40 50 60 70 80 90...

Page 24: ...Times GARD 8000 Distance Relay RFL Electronics Inc Single Phase 0 5 10 15 20 25 10 20 30 40 50 60 70 80 90 of set reach milliseconds SIR 0 1 SIR 1 SIR 10 Figure 4 3 Single Phase Operating Times March...

Page 25: ...DOs and OP 5 kV 1 2 50 s 0 5 J Differential mode DOs 1 kV 1 2 50 s Differential mode Power supply 3 kV 1 2 50 s 1 MHz Burst Test IEC 60255 22 1 Class III UNE 21 136 92 22 1 Common mode 2 5 kV Differe...

Page 26: ...70 C for 3 h 5 cycles Changes in humidity IEC 60068 2 30 IEC 61131 2 55 C for 12 h and 25 C for 12 h 6 cycles Endurance test 55 C during 1000 hours Operating range From 40 C to 85 C Storage range From...

Page 27: ...teraction in the system has been kept to a minimum in order to simplify the system user interface Recognizing the need for different functionality for different users and or applications the logic sig...

Page 28: ...4 Single Power Supply Figure 6 1 Front and Rear views of 3U chassis with Distance Relay Typical External DC connections are made as shown in the following the schematic for the example system configur...

Page 29: ...uration GARD 8000 Distance Relay RFL Electronics Inc The inputs Slot 2 and outputs Slot 4 are user configurable and is setup using a web page Figure 6 3 Input Mapping web page March 1 2009 6 3 973 334...

Page 30: ...ow many output modules that were ordered The logic outputs shown on the left on the output mapping page as source are determined in the Orcad logic and can be customized for your application The examp...

Page 31: ...rding to the AC schematic 2 3 4 5 6 7 8 9 GARD 8000 A B C Slot 3 VA VB VC VA VB VC VN V sync check 13 14 16 17 19 20 IA IB IC I sensitive neutral or current polarizing I neutral from parallel line for...

Page 32: ..._RETRIP 3_PH_RETRIP BFR_PICKUP BFR_TRIP AG BG CG AB BC CA ABG BCG CAG 3_PHASE XOR2 XOR2 XOR2 OR3 HMIIN1 HMIIN1 HMIIN2 HMIIN2 HMIIN24 HMIIN24 U12 Figure 6 7 Distance Relay Inputs schematic diagram The...

Page 33: ...le are defined in the Orcad logic and can be customized for your application A logic output can be mapped to a single physical output only and that is why some logic signals are duplicated in the logi...

Page 34: ...f logic signals from its measuring element and protection logic The GARD 8000 System logic uses these signals to perform trip and pilot scheme operations The default logic is bringing out some of the...

Page 35: ...ple a 115 000 120 V PT has the ratio 1125 1 10000 1 1 Bus PT Ratio Voltage transformer ratio for a bus voltage used for the synchro check function For example a 115 000 120 V PT has the ratio 1125 1 1...

Page 36: ...01 4 Zone 2 zero sequence angle Zero sequence impedance ZO angle in degrees for Zone 2 5 90 deg 1 75 Zone 3 k0 Factor Zero sequence compensation factor magnitude for Zone 3 k0 Z0 Z1 unitless 0 5 10 0...

Page 37: ...epending on system configuration use the typical value 5 90 deg 1 75 Parallel line positive sequence magnitude Positive sequence impedance magnitude for a parallel line in secondary ohms Used for mutu...

Page 38: ...e Enable 1 Enable Z2 ground units Enables trip operation by Zone 2 ground distance units Disable Enable 1 Enable Z2 phase units Enables trip operation by Zone 2 phase distance units Disable Enable 1 E...

Page 39: ...les trip by Instantaneous Negative Sequence Overcurrent step 2 Disable Enable 1 Disable 50Q 3 Enables trip by Instantaneous Negative Sequence Overcurrent step 3 Disable Enable 1 Disable 51Q 1 Enables...

Page 40: ...es trip by Overfrequency step 2 Disable Enable 1 Disable 81 3 Overfrequency Enables trip by Overfrequency step 3 Disable Enable 1 Disable 81 1 Rate of change of frequency Enables trip by Rate of chang...

Page 41: ...ad compensation of the reactive quadrilateral line After this time the load compensation is turned off and the line reverts to being parallel with the R axis Recommended time delay is 0 08 s 80 ms 0 0...

Page 42: ...ohms at set characteristic line angle 0 01 100 Ohm 0 01 2 5 Zone 4 ground resistive reach Resistive reach in secondary ohms for Zone 4 phase ground quadrilateral characteristic Note that the set resi...

Page 43: ...w the set threshold memory is used 0 1 5 V 0 1 1 7 3 2 PILOT COMMS SCHEME Description Range Units Step Default Open breaker carrier send Enables open breaker carrier send Used with Permissive schemes...

Page 44: ...ts in addition to the reverse blocking zone The 50P 1 50G 1 elements are utilized for this function No Yes 1 No 67 Pilot Scheme Selects the type of pilot scheme to use for the directional overcurrent...

Page 45: ...5 Right inner resistance Resistance reach of the inner right blinder The inner blinder is used for power swing tripping only 0 1 500 Ohm 0 01 1 Left outer resistance Resistance reach of the outer lef...

Page 46: ...ent enable Enable the load encroachment logic No Yes 1 No Right area limit Load encroachment forward load area resistive reach setting 0 1 100 Ohm 0 01 65 Left area limit Load encroachment reverse loa...

Page 47: ...onic restraint Set the for 2nd harmonic restraint following breaker closing 0 50 1 0 Pole discordance enable Enables pole discrepancy logic No Yes 1 No Pole discordance delay Time delay for pole discr...

Page 48: ...derfrequency step 2 40 70 Hz 0 01 40 81m 2 Underfrequency time delay Pickup time delay for underfrequency step 2 0 300 s 0 01 0 81m 2 Dropout Time Drop out time delay for underfrequency step 2 0 300 s...

Page 49: ...e for phase directional elements 0 90 deg 1 45 67G Ground characteristic angle Characteristic angle for ground directional elements 0 90 deg 1 45 67Q Negative sequence characteristic angle Characteris...

Page 50: ...No 50P 2 Torque control type Selection to use directional element or Zone 2 for torque control of the instantaneous phase overcurrent element step 2 67P Z2 1 67P 50P 3 Phase instantaneous enable Enabl...

Page 51: ...rque control type Selection to use directional element or Zone 2 for torque control of the phase timeovercurrent element step 2 67P Z2 1 67P 51P 3 Phase timeovercurrent enable Enable phase timeovercur...

Page 52: ...s ground enable Enable instantaneous ground overcurrent element step 2 No Yes 1 No 50G 2 Pickup Pickup level for instantaneous ground overcurrent element step 2 0 600 150 A 0 01 5 50G 2 Time delay Tim...

Page 53: ...efinite Time 51G 2 Time dial Sets the time dial for the selected curve 0 05 10 0 01 1 51G 2 Time delay Sets the minimum time delay for the curves with Time Limit TL for the ground timeovercurrent elem...

Page 54: ...le Enable instantaneous negative sequence overcurrent element step 1 No Yes 1 No 50Q 1 Pickup Pickup level for instantaneous negative sequence overcurrent element step 1 0 25 150 A 0 01 10 50Q 1 Time...

Page 55: ...egative sequence timeovercurrent element step 1 No Yes 1 No 51Q 1 Pickup Pickup level for negative sequence timeovercurrent element step 1 0 50 25 A 0 01 2 51Q 1 Time curve Sets the time current chara...

Page 56: ...3 Time dial Sets the time dial for the selected curve 0 05 10 0 01 1 51Q 3 Fixed time Sets the minimum time delay for the curves with Time Limit TL for the negative sequence timeovercurrent element st...

Page 57: ...comparison blocking DCB pilot schemes the reverse sensitivity should be set higher lower setting of the current supervision element than the forward elements to ensure proper coordination 0 20 7 5 A 0...

Page 58: ...ose 25 wait time enable Enable wait time for 2nd synchro check supervised recluse attempt If disabled synch check condition is checked following the dead time and it not fulfilled the recloser goes to...

Page 59: ...timeovercurrent trips Step 2 Disable Enable 1 Disable 51P 3 RI Enable reclose initiate from phase timeovercurrent trips Step 3 Disable Enable 1 Disable 50G 1 RI Enable reclose initiate from ground in...

Page 60: ...Yes 1 No Side A Voltage PU Sets side A voltage line side pick up 20 70 V 1 20 Side B Voltage PU Sets side B voltage bus side pick up 20 70 V 1 20 D BUS D LINE Enable Dead Bus Dead Line energizing Disa...

Page 61: ...vel on per phase basis for three pole trip 0 10 12 A 0 01 1 1 Pole BF delay Single pole breaker failure trip delay 0 05 2 s 0 01 0 5 3 Pole BF delay Three pole breaker failure trip delay 0 05 2 s 0 01...

Page 62: ...Delay Time delay for phase overvoltage step 3 0 300 s 0 01 0 59 3 Output Logic Selects if the three phase voltage elements should be connected in series AND or in parallel OR OR AND 1 OR 59G 1 Ground...

Page 63: ...nt step 3 No Yes 1 No 27 3 Pickup Pickup level for phase undervoltage step 3 10 300 V 0 01 40 27 3 Time Delay Time delay for phase undervoltage step 3 0 300 s 0 01 0 27 3 Output Logic Selects if the t...

Page 64: ...0 25 cycls 1 2 Total length Number of fault cycles in the record when Continuous Mode is set to No 5 240 cycls 1 8 VA Enables recording of analog channel voltage phase A No Yes Yes VB Enables recordin...

Page 65: ...ative sequence overcurrent step 3 No Yes No 51P 1 Phase time overcurrent step 1 No Yes No 51P 2 Phase time overcurrent step 2 No Yes No 51P 3 Phase time overcurrent step 3 No Yes No 51G 1 Ground time...

Page 66: ...equency step 2 No Yes No 81 3 Rate of change of frequency Rate of change of frequency step 3 No Yes No Load Restriction Load restriction characteristic picked up No Yes No Open phase 46 Broken conduct...

Page 67: ...1 trip No Yes 1 No C 51P 1 trip No Yes 1 No 51G 1 trip No Yes 1 No A 50P 1 trip No Yes 1 No B 50P 1 trip No Yes 1 No C 50P 1 trip No Yes 1 No 50G 1 trip No Yes 1 No Open phase pickup No Yes 1 No Open...

Page 68: ...out No Yes 1 No Reclose command No Yes 1 No Excessive number of trips No Yes 1 No Close command No Yes 1 No Open command No Yes 1 No A 50P 2 pickup No Yes 1 No B 50P 2 pickup No Yes 1 No C 50P 2 pick...

Page 69: ...1 No C 27 2 trip No Yes 1 No Three phase 27P 2 trip No Yes 1 No A 27 3 trip No Yes 1 No B 27 3 trip No Yes 1 No C 27 3 trip No Yes 1 No Three phase 27P 3 trip No Yes 1 No A 59P 1 pickup No Yes 1 No B...

Page 70: ...requency trip No Yes 1 No 81 1 underfrequency trip No Yes 1 No 81 2 underfrequency trip No Yes 1 No 81 3 underfrequency trip No Yes 1 No 81 1 rate of change of frequency trip No Yes 1 No 81 2 rate of...

Page 71: ...ence primary ohms 50 86 degrees Local source impedance Z0SL zero sequence primary ohms 50 86 degrees Remote source impedance Z1SR positive sequence primary ohms 50 86 degrees Remote source impedance Z...

Page 72: ...1 364 TX Logic Bus Length Used by system logic Factory set 0 64 1 64 Active Setting Group Determines setting group in use by the distance protection module Group 1 Group 2 Group 3 Group 4 1 Group 1 20...

Page 73: ...the Zone 2 element setting is on the page for Distance Protection Zone 1 to 4 The below figure is attempting to explain the difference between the Trip Mask and Element enable settings The figure uses...

Page 74: ...degrees 5 90 deg 1 85 Zone 1 k0 Factor Zero sequence compensation factor magnitude for Zone 1 k0 Z0 Z1 unitless 0 5 10 0 01 3 52 Line Zero Seq Impedance Angle Zero sequence impedance angle for the pro...

Page 75: ...on system configuration use the typical value 0 01 100 Ohm 0 01 5 00 Remote Zero Seq Source Impedance Angle Zero sequence impedance angle for the remote source in degrees Used for the fault locator As...

Page 76: ...Zone 1 ground distance units Disable Enable 1 Enable Phase Units Z1 Enables trip operation by Zone 1 phase distance units Disable Enable 1 Enable Ground Units Z2 Enables trip operation by Zone 2 grou...

Page 77: ...p by Instantaneous Negative Sequence Overcurrent step 1 Disable Enable 1 Disable 50Q 2 Enables trip by Instantaneous Negative Sequence Overcurrent step 2 Disable Enable 1 Disable 50Q 3 Enables trip by...

Page 78: ...y step 2 Disable Enable 1 Disable 81 FREQCHG3 Enables trip by Rate of change of Frequency step 3 Disable Enable 1 Disable 8 1 6 REACH SETTINGS Pilot scheme settings will be discussed in further detail...

Page 79: ...lements time delay 0 300 s 0 01 0 Zone 1 quad tilt time delay Time delay for the load compensation of the reactive quadrilateral line After this time the load compensation is turned off and the line r...

Page 80: ...phase timer Zone 3 phase elements time delay 0 300 s 0 01 0 8 Zone 4 Enable Enable operation of Zone 4 distance No Yes 1 Yes Zone 4 direction Zone 4 measuring direction forward or reverse Note that wh...

Page 81: ...or the quadrilateral characteristic It is typically set at 75 degrees See Description of Operation for definition of this angle 0 90 deg 1 75 Lagging phase for PH PH G faults For two phase to ground f...

Page 82: ...n phase time delay Time delay for trip for broken conductor 0 05 300 s 0 01 0 05 46 Minimum load Sets minimum load level for the broken conductor function If the positive sequence current is below thi...

Page 83: ...8000 21L SETTING EXAMPLES DIRECTIONAL COMPARISON BLOCKING 8 2 1 LINE The same example as for Stepped Distance protection is used Nominal voltage 230 kV Nominal current 5 A Frequency 60 Hz Line length...

Page 84: ...Settings which is the Trip Mask Another on the corresponding element setting page which is the element enable setting For example the Zone 2 element setting is on the page for Distance Protection Zone...

Page 85: ...ero Seq Impedance Angle Zero sequence impedance angle for the protected line in degrees 5 90 deg 1 74 Zone 2 k0 Factor Zero sequence compensation factor magnitude for Zone 2 k0 Z0 Z1 unitless 0 5 10 0...

Page 86: ...ource in secondary ohms Used for the fault locator As the source impedance value may differ depending on system configuration use the typical value 0 01 100 Ohm 0 01 5 00 Remote Zero Seq Source Impeda...

Page 87: ...f any element YES or following a trip only NO No Yes 1 Yes Three Phase Trip Selects 3 pole tripping Yes or single pole tripping No No Yes 1 Yes 1 Pole Trip 67G Selects 3 pole tripping No or single pol...

Page 88: ...le Enable 1 Disable 50G 1 Enables trip by Instantaneous Ground Overcurrent step 1 Disable Enable 1 Disable 50G 2 Enables trip by Instantaneous Ground Overcurrent step 2 Disable Enable 1 Disable 50G 3...

Page 89: ...rip by Overfrequency step 1 Disable Enable 1 Disable 81 OVERFREQ2 Enables trip by Overfrequency step 2 Disable Enable 1 Disable 81 OVERFREQ3 Enables trip by Overfrequency step 3 Disable Enable 1 Disab...

Page 90: ...in the example is SIR 5 Z1SL 0 8 Z1L 0 8 4 13 1 5 4 As this is not a short line extended margins are not required and the zone settings 80 120 50 are consequently used in this example Zone 1 reach 80...

Page 91: ...ements time delay 0 300 s 0 01 0 Zone 1 quad tilt time delay Time delay for the load compensation of the reactive quadrilateral line After this time the load compensation is turned off and the line re...

Page 92: ...hase timer Zone 3 phase elements time delay 0 300 s 0 01 0 8 Zone 4 Enable Enable operation of Zone 4 distance No Yes 1 Yes Zone 4 direction Zone 4 measuring direction forward or reverse Note that whe...

Page 93: ...phase elements but in case high resistance is expected for these type of faults the setting should be YES No Yes 1 No Distance Block Timer When a digital input is used for blocking the distance protec...

Page 94: ...for forward phase phase and three phase impedance zone operation 0 20 7 5 A 0 01 5 34 Reverse Sup 1 Ph Minimum operating current for reverse phase ground impedance zone operation When using Zone 4 re...

Page 95: ...t trip is issued This indicates a forward fault 8 2 9 1 FAST CARRIER START Fast Carrier Start is mainly used for one of two reasons 1 Coordination with a remote E M scheme that lacks channel coordinat...

Page 96: ...rrent and below the current supervision setting of the remote relay Recommended setting is to use the same value as the current supervision Reverse Sup 2 Ph applied to the reverse Z4 i e 4 90 A for th...

Page 97: ...ed However a more conservative setting of 10 ms is recommended When not applying Fast Carrier start 10 ms is recommended Note that these times assumed that the communication channel is a GARD ON OFF c...

Page 98: ...ments only Channel receive 50 G 2 Trip 67 pilot 67 channel stop 50 G 1 0 T 67 Coord Time 67 channel start T 0 DCB67 delay time Input block trip 67 pilot 50 Q 2 50 Q 1 50 G 3 50 Q 3 Input disable 67 pi...

Page 99: ...0Q 3 with their corresponding 67 reverse directional supervision will block trip for a fault behind the local relay Consequently they should be set more sensitive than the remote 50G 2 50Q 2 elements...

Page 100: ...block function 0 50 ms 1 20 DCB dist delay time Sets the time delay for Directional Comparison Blocking DCB trip signal This is the amount of time the forward pilot zone will wait to receive a blockin...

Page 101: ...e Transient Block Logic for the overcurrent directional comparison pilot schemes No Yes 1 No 8 2 12 21 DCB AND 67 DCB COORDINATION While the 50G 1 element is intended to detect close in faults in the...

Page 102: ...s phase overcurrent element step 2 0 300 s 0 01 0 50P 2 Torque Control Direction Directional control of instantaneous phase overcurrent element step 2 NO Forward Reverse 1 NO 50P 2 Torque Control Type...

Page 103: ...nimum time delay for the curves with Time Limit TL for the phase timeovercurrent element step 2 0 05 300 s 0 01 0 05 51P 2 Torque Control Direction Directional control of phase timeovercurrent element...

Page 104: ...neous ground 50G 2 Enable instantaneous ground overcurrent element step 2 No Yes 1 Yes 50G 2 Pick Up Pick up level for instantaneous ground overcurrent element step 2 0 600 150 A 0 01 1 50 50G 2 Time...

Page 105: ...haracteristic for ground timeovercurrent element step 2 see time curve selection below 1 Definite Time 51G 2 Time Dial Sets the time dial for the selected curve 0 05 10 0 01 1 51G 2 Time Delay Sets th...

Page 106: ...y by boosting the magnitude when required The majority of applications has this factor set to 0 The minimum polarizing voltage 67G Minimum voltage is settable 0 05 10 V If the magnitudes are below the...

Page 107: ...ements 0 05 10 V 0 01 0 2 Resid Volt Compensation Sets a factor to amplify available zero sequence voltage polarization level 0 50 0 01 0 Negative Sequence Voltage Compensation Sets a factor to amplif...

Page 108: ...Distance Relay Setting Examples GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank August 1 2009 8 38 973 334 3100...

Page 109: ...ing K0 defined as K0 ZL0 ZL1 where ZL0 and ZL1 are the zero sequence and positive sequence impedances of the line Each zone has an individual reach setting positive sequence impedance and individual s...

Page 110: ...I k ZF Vc Vc1M AB Iab ZF Vab Vab1M BC 90 arg arg 90 OP POL Ibc ZF Vbc Vbc1M Ica ZF Vca Vca1M CA Table 9 2 MHO Characteristic Table Definitions Figure 8 1 shows the phase to ground fault Mho character...

Page 111: ...fault With the voltage memory feature the positive sequence voltage two cycles prior to the fault is used to polarize the MHO characteristic The diameter of the characteristic is increased by the imp...

Page 112: ...pedance ZL Line positive sequence impedance ZRS Remote source positive sequence impedance Zset Set reach Ieq Equivalent ground fault current Iphase I0 K0 1 Ia Phase A current The same measurement is b...

Page 113: ...sing the voltage memory feature the positive sequence voltage prior to the fault is used to polarize the characteristic The characteristic diameter is increased by the impedance LS load Z I I When the...

Page 114: ...ble shows the operation and polarization phasors of the Quadrilateral characteristic measuring elements as well as the applied operation criteria Table 9 5 Quadrilateral Characteristics Reactance Char...

Page 115: ...ault occurs and point F indicates where the relay measures the fault As shown the points do not coincide due to the IF RF vector which represents the voltage drop in the fault impedance Under no load...

Page 116: ...gamma due to the lack of homogeneity on the system The tilt angle changes the characteristic from C1 to C2 avoiding overreach of the relay during the preset tilt time and allowing the adjacent protec...

Page 117: ...dded to the Reactance characteristic C2 The following table shows the operate and polarization phasors of the directional elements as well as the applied operating criteria Table 9 7 Directional Unit...

Page 118: ...acteristic is polarized by the equivalent current of the corresponding phase hence they are parallel to the reactance axis Figure 9 7 shows the resistive limiter characteristic C4 and C5 added to the...

Page 119: ...bc RPn Ibc RPn Ibc CA Vca RPn Ica RPn Ica 90 OP POL Resistive Limiter Axis R 0 Characteristic Unit OP POL Criteria AB Vab RPn Iab RPn Iab BC Vbc RPn Ibc RPn Ibc CA Vca RPn Ica RPn Ica 90 OP POL Where...

Page 120: ...element logic is shown in the Figure below Single phase to ground measuring elements in the leading phase are not allowed to operate for two phase to ground faults as they will overreach However the...

Page 121: ...e sequence voltage memory buffer stores the voltage from two cycles before fault inception as determined by a fault detector The use of memory voltage is conditional in addition the memorized positive...

Page 122: ...upervision Phase B Ib Forward BG elements supervision Phase C Ic Single Phase Forward Forward CG elements supervision Phases AB Iab Forward AB elements supervision Phases BC Ibc Forward BC elements su...

Page 123: ...ase A Zone n Unit Phase B Zone n Unit Phase C Zone n Unit Phase AB Zone n Unit Phase BC Zone n Unit Phase CA Zone n Unit 0 30 ms ZnG delay 0 ZnP delay 0 Zn Ph PU Zone n Phase Units Pick Up Zn G PU Zon...

Page 124: ...ration This scheme provides fast tripping of the overreaching zone set beyond 100 of the line length As this scheme can make the relay operate for faults on the adjacent line Zone 1 extension is inhib...

Page 125: ...e setting It functions as a complement to the Step Distance scheme With this scheme if a terminal locates the fault inside zone 1 adjusted below 100 of the line and the other terminal locates the faul...

Page 126: ...wing conditions by adjusting the Power swing Element Distance pilot scheme power swing block setting In case weak infeed logic is to be used with the PUTT scheme the setting should be TRIP ECHO The Ec...

Page 127: ...TATION B Z2 BKR A BKR B TRIP BKR A T2A A Z2 TRANSMIT TRIP B RXA TRIP BKR A T2A A Z2 TRANSMIT TRIP B RXA TRIP BKR B T2B B Z2 TRANSMIT TRIP A RXB TRIP BKR B T2B B Z2 TRANSMIT TRIP A RXB Figure 9 16 Perm...

Page 128: ...open breaker Open breaker carrier send The time delay for this function is fixed to 100 ms The Dist carrier send extend time provides a minimum time for channel signal transmission Channel tripping a...

Page 129: ...low for variations of the pick up time of the forward pilot zone and the reverse blocking element 21R CARRIER TX 21P 21R CARRIER TX BKR A BKR B TRIP BKR A CARRIER TX CARRIER RX T2A 21R 21P TRIP BKR B...

Page 130: ...provided with a time delay DCB distance coordination time to allow the transmission of the channel signal between terminals Channel receive Forward pilot zone Power swing blocking Block pilot trip In...

Page 131: ...scheme is a permissive principle forward operation AND received permission are required for a trip To accommodate for a risk of losing the carrier signal in the fault on the line an unblock trip windo...

Page 132: ...ignal for the carrier to switch to trip frequency Distance protection channel start When the shift is recognized at the remote end a carrier receive signal is given to the receiving relay and a Distan...

Page 133: ...in the reverse direction A B Forward Pilot A Permissive Signal from A to B Figure 9 22 Transient Block Logic A B Forward Pilot B Permissive Signal from A to B Breaker opened Trip conditions fulfilled...

Page 134: ...the fault is inside the line the terminal will transmit a signal back to the emitter echo signal allowing tripping This signal allows the remote end terminal to trip by their overreach elements Proper...

Page 135: ...ential Echo None Zone 4 fault Enable LOP Block Trip Weak Infeed Echo Distance VA VB VC Weak infeed Undervoltage Level T 0 Security time 0 T Distance extend time Distance Weak Infeed Settings 100 ms Tr...

Page 136: ...fill all the conditions of a three phase fault the second phase selector algorithm is executed It compares the arguments of the negative and positive cycles If the fault is not three phase and meets t...

Page 137: ...s plus an additional reset time of 30 ms The fault detector is also kept sealed by assertion of any of the distance elements overcurrent elements stub bus close into fault and the trip signal 9 5 LOSS...

Page 138: ...open pole three open poles or any open pole The outputs of this unit are used by other functions such as pole discrepancy close into fault and reclosing The type of open pole logic is selected on GAR...

Page 139: ...or CIFT supervision zone 2 Following reclosing in case of a fault inside zone 2 or zone 3 according to setting selection for CIFT supervision zone and when Z1 ext after recl is enabled 3 Following clo...

Page 140: ...Distance Relay RFL Electronics Inc Reclose command Manual Close Zone 2 Zone 3 CIFT Ia Ib Ic 2nd 2nd 2nd V1 Z1 ext after recl 300 ms 300 ms CIFT supervision zone Figure 9 30 Close Into Fault Block Diag...

Page 141: ...istic 9 9 POWER SWING BLOCK UNIT Power swing conditions are disturbances produced by imbalances between generation and demand which may originate from changes in the topology of the network load varia...

Page 142: ...swing detection time setting there is no system fault but rather a power swing Once a power swing has been detected if the Power swing Trip function has been enabled it is determined if the swing is...

Page 143: ...In trip time Time delay for the Way In trip operation Power swing condition reset time Reset time for the power swing condition following a swing locus moving outside the outer blinder 9 10 REMOTE OP...

Page 144: ...2 For this the unit has an undercurrent unit whose level is given by the Min current level for the Remote Open Breaker function set in Breaker settings In case of long lines the capacitive current co...

Page 145: ...curs The activation of the output requires that the pickup current continue throughout the integration time any reset returns the integrator to its initial condition so that a new operation initiates...

Page 146: ...ing for all the curves is from 0 05 10 However the following restrictions apply The IEC curves have a range of 0 05 1 If set to a value above 1 it will default to the maximum setting of 1 The incremen...

Page 147: ...d in the figure below Figure 9 35 Minimum Operating Time when set Fixed Time exceeds curve time delay at 1 5 x pick up Note It is important to realize that while the curves are defined for up to 20 ti...

Page 148: ...scription of Operation GARD 8000 Distance Relay RFL Electronics Inc 9 11 3 INVERSE CHARACTERISTIC CURVES Figure 9 36 ANSI Moderately Inverse 0 02 0 0104 0 0226 1 S t td I August 1 2009 9 40 973 334 31...

Page 149: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 37 ANSI Inverse 2 5 95 0 180 1 S t td I August 1 2009 9 41 973 334 3100...

Page 150: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 38 ANSI Very Inverse 2 3 88 0 0963 1 S t td I August 1 2009 9 42 973 334 3100...

Page 151: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 39 ANSI Extremely Inverse 2 5 67 0 0352 1 S t td I August 1 2009 9 43 973 334 3100...

Page 152: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 40 ANSI Short time 0 02 0 00342 0 00262 1 S t td I August 1 2009 9 44 973 334 3100...

Page 153: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 41 Inverse IEC 0 02 0 14 1 s t td I August 1 2009 9 45 973 334 3100...

Page 154: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 42 IEC Very Inverse 13 5 1 s t td I August 1 2009 9 46 973 334 3100...

Page 155: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 43 IEC Extremely Inverse 2 80 1 s t td I August 1 2009 9 47 973 334 3100...

Page 156: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 44 IEC Long Inverse 120 1 s t td I August 1 2009 9 48 973 334 3100...

Page 157: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 45 IEC short inverse 0 04 0 05 1 s t td I August 1 2009 9 49 973 334 3100...

Page 158: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 46 IEEE Moderately Inverse 0 02 0 0515 0 114 1 S t td I August 1 2009 9 50 973 334 3100...

Page 159: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 47 IEEE Very Inverse 2 19 61 0 491 1 S t td I August 1 2009 9 51 973 334 3100...

Page 160: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 48 IEEE Extremely Inverse 2 28 2 0 1217 1 S t td I August 1 2009 9 52 973 334 3100...

Page 161: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc Figure 9 49 RI Inverse 1 1 0 339 0 236 S t td I August 1 2009 9 53 973 334 3100...

Page 162: ...the Zone 2 element should be set reverse Ground units can be selected to be Non directional Forward by use of the ground directional element 67N Reverse by use of the ground directional element 67N Fo...

Page 163: ...ation block When this is set to No release the instantaneous elements are enabled immediately and the time overcurrent units after the set coordination time The directional units assert when the direc...

Page 164: ...ple in the next section Blocking zone Operating zone Characteristic angle Maximum torque Operating phasor Polarizing phasor Figure 9 50 Vector diagram for the phase directional unit The operating crit...

Page 165: ...t fault resistance If the line impedance is Zl the fault current IA lags the voltage VA with an angle The phase directional unit does not use the phase voltage for polarization but the voltage between...

Page 166: ...last term in the polarizing quantity is intended to increase the available polarizing quantity by boosting the magnitude The operating criterion is given in the following table ANG_67G is the set 67G...

Page 167: ...is added to V0 The compensation value should be restricted so that misoperation does not occur for reverse faults For faults in the reverse direction V0 ZL0 ZB0 I0 where ZL0 is the line zero sequence...

Page 168: ...COMP ANG_67Q 90 ANG_67Q arg OP arg POL 90 ANG_67Q The minimum polarizing quantity is settable 0 05 10 V The sensitivity of the operating quantity is 0 02 x IN 0 1 A for a 5A relay If the magnitudes a...

Page 169: ...lot logic and provide higher sensitivity for high resistance ground faults The carrier send signals can be combined in the logic to be the same signal as used for the distance relay pilot operation In...

Page 170: ...pen line disconnect switch with line PT on the line side of the switch The stub bus function uses an input from a line disconnector 89b switch together with three phase current elements set as Stub bu...

Page 171: ...or to the overload event or repeated periods of overload shorter than the set time delay An overloaded line is normally overloaded for a reason other essential lines have tripped and a trip for overlo...

Page 172: ...000 to memorize the temperature calculated in case of powering off the relay If this setting is enabled the thermal image algorithm s start temperature will be the memorized value The thermal image se...

Page 173: ...etting selection is done independently for each of the three units AND The unit trips when all three phase elements pick up OR The unit trips when any one of the three phase elements pick up The three...

Page 174: ...cted to be from each phase separately OR or for all three phases AND This setting selection is done independently for each of the three units AND The unit trips when all three phase elements pick up O...

Page 175: ...ock Diagram for Phase Overvoltage units 9 17 3 GROUND OVERVOLTAGE UNITS 59 There are two ground overvoltage units 59G 1 and 59G 2 Each unit has a pick up setting and a timer setting The ground voltage...

Page 176: ...been declared set as a common setting The drop out is at 99 9 of set value for the duration of the set drop out time set for the individual frequency unit 9 18 2 UNDERFREQUENCY UNITS 81M The underfre...

Page 177: ...supply for a given portion of power systems are unequal or not distributed equally any type of a sudden generation or transmission deficiency may cause cascading outages When the load in a balanced po...

Page 178: ...breaker failure unit is used to detect failure of the breaker to open following a trip command and to give a trip signal to other circuit breakers to isolate the fault The breaker failure unit incorp...

Page 179: ...3PH retrip BF_B 1 Pole BF_C 1 Pole BF_A 3 Pole BF_B 3 Pole BF_C 3 Pole Ext trip A Trip B Ext trip B Trip C Ext trip C Trip 3PH Ext trip 3PH T1 0 T1 0 T1 0 T1_R 0 T1_R 0 T2_R 0 T2 0 BF Trip A retrip T1...

Page 180: ...lected to be phase A B or C The voltage selected has to be entered in the settings so that the appropriate phase shift can be taken into account Note that the line voltage refers to the side where the...

Page 181: ...equency limits established in the settings Verification of synchronism is defined as the comparison of the voltage difference of two circuits with different sources to be joined through an impedance t...

Page 182: ...NCE The pole discordance logic will detect an abnormality of the position of the three breaker poles If this condition is maintained during the time setting a three pole trip is generated Given that t...

Page 183: ...cordance OST Phase Overvoltage Trip Ground Overvoltage Trip Thermal Trip Block Distance Step Distance Trip Distance Pilot Trip Trip 50 1 Q Trip 50 1 G Pilot Trip 67 Trip 50Q Trip 50G Trip 51Q Trip 51G...

Page 184: ...ed in the Reclosing Attempts setting Reclosing can be initiated by a large number of measuring units in the GARD 8000 as determined by setting 9 23 1 RECLOSE INITIATE BY EXTERNAL TRIPS The recloser op...

Page 185: ...RI 51G 2 RI 51G 3 RI 50Q 1 RI 50Q 2 RI 50Q 3 RI 51Q 1 RI 51Q 2 RI 51Q 3 RI Open phase RI Out of Step Trip RI Remote Breaker Open Enable Step Distance Reclose Initiate 50P 3 RI CIFT Reclose cycle in p...

Page 186: ...reclose attempts SIR reclose initiate Reset CC 0 n 0 Start Time SIR Reclose Initiate 52b 1 TRIP 0 TRIP 1 SIR 0 Lock out for Start Time failure SIR 1 TRIP 1 52b 0 CC 1 SIR 0 TRIP 0 52b 1 Recl Cycle Tim...

Page 187: ...signal is still active or the breaker is still closed the recloser goes into lock out The recloser remains in locked out state until the breaker is manually closed for the time set on Security Time af...

Page 188: ...before a reclose is attempted Activation of the Reclose Command signal Recl generates the breaker closing command signal When the Start Time state is reached the corresponding timer will be started Th...

Page 189: ...utput Recl is activated to send a close command to the breaker and an adjustable Fail to Close Timer is started If the breaker closes before the Fail to Close Time is completed the Recloser Reset Time...

Page 190: ...is received further operations are suspended No reclose attempts will be initiated after a breaker trip The type of signal used for external block of the recloser can be set Recloser blocking type re...

Page 191: ...gnal since synchronism is included in the Recloser logic When the closing command is due to a manual operation through the HMI or through communications local or remote the local control logic will ch...

Page 192: ...The second setting is used to enter a starting value for the calculated sum in case the breaker has been in service some time after maintenance before GARD 8000 is installed It is also used to reset...

Page 193: ...h voltage The duration of the voltage memory will be given by the Memory duration setting In general to correctly clear faults in a forward direction it is not necessary to use long memory times becau...

Page 194: ...Description of Operation GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank August 1 2009 9 86 973 334 3100...

Page 195: ...t records give even more information about the fault condition such as pre fault and fault analog values 10 2 MEASURED VALUES AND TRIP STATUS The GARD 8000 distance relay will display the measured val...

Page 196: ...Sequence of Events Reports and Fault Recording GARD 8000 Distance Relay RFL Electronics Inc Figure 10 2 Distance Metering March 1 2009 10 2 973 334 3100...

Page 197: ...lt Recording GARD 8000 Distance Relay RFL Electronics Inc Unit Status displays the status of all measuring elements whether they are in picked up state or not Figure 10 3 Distance Protection Unit Stat...

Page 198: ...ts Reports and Fault Recording GARD 8000 Distance Relay RFL Electronics Inc Recloser Status displays which elements are active in the recloser logic Figure 10 4 Distance Recloser Status March 1 2009 1...

Page 199: ...orts and Fault Recording GARD 8000 Distance Relay RFL Electronics Inc Last Trip Status displays which elements were active during the last trip event Figure 10 5 Distance Status at last trip March 1 2...

Page 200: ...ed as 1 and the newest as 100 The record is accessed by selecting the distance relay module on the main status screen and selecting Distance Sequence of Events The events are time tagged from the syst...

Page 201: ...ing GARD 8000 Distance Relay RFL Electronics Inc Selecting an SOE button gives further details about the event which elements were picked up with fault currents and voltages Figure 10 7 Distance SOE d...

Page 202: ...ed the relay operation 15 detailed fault records are stored Figure 10 8 Distance Fault Record At fault inception the following information is presented Date and time stamp Pre fault currents and volta...

Page 203: ...stamp Fault currents and voltages as measured two and a half cycles following the fault inception The displayed values include phase currents and phase voltages neutral current and voltage and sequenc...

Page 204: ...Sequence of Events Reports and Fault Recording GARD 8000 Distance Relay RFL Electronics Inc Figure 10 9 Distance Fault Record Details Part 2 of 3 March 1 2009 10 10 973 334 3100...

Page 205: ...Sequence of Events Reports and Fault Recording GARD 8000 Distance Relay RFL Electronics Inc Figure 10 9 Distance Fault Record Details Part 3 of 3 March 1 2009 10 11 973 334 3100...

Page 206: ...hey are 3 PHASE CURRENTS 3 phase voltages 1 neutral current used for sensitive ground fault relaying or current polarization or the directional units 1 neutral current from a parallel line used for mu...

Page 207: ...ithm compensates for load flow and uses an innovative steady state algorithm for very accurate distance to fault indication 10 3 1 SETTINGS FOR THE FAULT LOCATOR Line Impedance Local Source Impedance...

Page 208: ...Sequence of Events Reports and Fault Recording GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank March 1 2009 10 14 973 334 3100...

Page 209: ...ming of both the System logic and the distance relay module logic unless custom logic has been requested The following section describes the default programming of the distance relay module For System...

Page 210: ...GRAMMING The following signals are supplied as standard Note that any physical input can be connected to any number of virtual inputs via the input mapping pages No Signal Option logic 1 RESET OSC PBI...

Page 211: ...1G 1 43 BLOCK 51G 2 44 BLOCK 51G 3 45 BLOCK 51Q 1 46 BLOCK 51Q 2 47 BLOCK 51Q 3 48 BLOCK 27P 1 49 BLOCK 27P 2 50 BLOCK 27P 3 51 BLOCK 59P 1 52 BLOCK 58P 2 53 BLOCK 59P 3 54 BLOCK 59G 1 55 BLOCK 59G 2...

Page 212: ...function The physical input can be a 52a or a 52b In addition the logic accommodates dual breaker inputs The System logic provides the necessary logic for achieving this function and appropriate setti...

Page 213: ...IMAGE TRIP Latched 1 Y 35 THERMAL IMAGE ALARM Latched 1 Y 36 OSC TRIGGERED Latched 1 Y 37 50P PICKUP Non latched 1 N 38 50G PICKUP Non latched 1 N 39 50Q PICKUP Non latched 1 N 40 51P PICKUP Non latc...

Page 214: ...on request This is a Windows based application that needs to be installed on a PC In addition the following files are needed and will be provided by RFL Profile Id txt and cache_perfiles txt and DR C0...

Page 215: ...C000000 prp file has not been properly copied to PerfilesProcome in the Zivercom program directory Next select the configuration This is the cfp file provided by RFL and copied to Configuraciones In...

Page 216: ...0 Distance Relay RFL Electronics Inc Click the sign twice to open the menu and select Configuration Click on Edit The next window gives a number of options in the top bar menu Only Logic is applicable...

Page 217: ...e addressed one by one Only Digital Inputs and Digital Outputs are available as Logic Type Both of these have an editable label field The window then lists all of the logic inputs to the distance rela...

Page 218: ...ot connected to the outer world will not interfere with anything The number of assigned inputs 72 and outputs 64 should not be changed without consultation with RFL as this also influences the system...

Page 219: ...00 Distance Relay RFL Electronics Inc CABLE assigns a Digital Input Output to a Logic Input Output In the Input example Digital Input 1 mapped to a physical input via the System Logic will clear oscil...

Page 220: ...a breaker open input where one Digital Input asserts 4 Logic Inputs OR AND Performs this operation on up to 16 signals For example for the outputs above all 50P elements have been combined ORed to on...

Page 221: ...ogramming GARD 8000 Distance Relay RFL Electronics Inc 11 5 3 PROGRAMMING A DIGITAL INPUT OR DIGITAL OUTPUT To program a Digital Input the input in question is first selected Then click Edit March 1 2...

Page 222: ...ample shows the CABLEM function where Digital Input 5 asserts 4 Logic Inputs Note that any of these inputs can be inverted by the check box next to them To add one more input click a down arrow by an...

Page 223: ...en in the drop down menu The entire list for available signals is attached at the end of this document Note that a Logic input can only be selected once If for example Pole A Open Input should be conn...

Page 224: ...ay Logic Programming GARD 8000 Distance Relay RFL Electronics Inc Outputs are programmed in the same manner Note that also here inversion check boxes are available for all signals March 1 2009 11 16 9...

Page 225: ...8000 Distance Relay RFL Electronics Inc 11 5 4 SAVING AND COMPILING THE CONFIGURATION To save the new programming click OK until the following screen shows up Here select Save from the file menu Save...

Page 226: ...000 Distance Relay RFL Electronics Inc Before compiling you need to load the new configuration in the previous screen Select File Exit Click in the New Value field and select the configuration you jus...

Page 227: ...y zivercom Zivercom needs this file for final compilation Then go back to Edit File Compile configuration If no error text is displayed the file compiled correctly and can be found in the directory Co...

Page 228: ...E INTO GARD The new programming now compiled in a file name MANUAL CMP in this example is ready to be loaded into a GARD Select File operations from the main menu Send File to GARD 8000 scroll down to...

Page 229: ...Distance Relay Logic Programming GARD 8000 Distance Relay RFL Electronics Inc March 1 2009 11 21 973 334 3100...

Page 230: ...Distance Relay Logic Programming GARD 8000 Distance Relay RFL Electronics Inc Select it and send to GARD March 1 2009 11 22 973 334 3100...

Page 231: ...Distance Relay Logic Programming GARD 8000 Distance Relay RFL Electronics Inc March 1 2009 11 23 973 334 3100...

Page 232: ...Unit 1 Pick Up OUT 42 51Q Unit 2 Pick Up OUT 42 51Q Unit 3 Pick Up OUT 42 59G Unit 1 Pick Up 59G Unit 2 Pick Up 81 Frequency Rate of Change Unit 1 Pick Up 81 Frequency Rate of Change Unit 2 Pick Up 81...

Page 233: ...se A 27P Unit 2 Pick Up Phase A 27P Unit 3 Pick Up OUT 37 Phase A 50P Unit 1 Pick Up OUT 37 Phase A 50P Unit 2 Pick Up OUT 37 Phase A 50P Unit 3 Pick Up OUT 40 Phase A 51P Unit 1 Pick Up OUT 40 Phase...

Page 234: ...ase A Supervision Pick Up Single Pole Trip Breaker Failure Phase B Supervision Pick Up Single Pole Trip Breaker Failure Phase C Supervision Pick Up OUT 44 Stub Protection Pick Up Three Phase 27P Unit...

Page 235: ...rip OUT 17 81 Frequency Rate of Change Unit 1 Trip OUT 27 81 Frequency Rate of Change Unit 2 Trip OUT 27 81 Frequency Rate of Change Unit 3 Trip OUT 27 81 Overfrequency Unit 1 Trip OUT 26 81 Overfrequ...

Page 236: ...ase B 50P Unit 3 Trip OUT 10 Phase B 51P Unit 1 Trip OUT 13 Phase B 51P Unit 2 Trip OUT 13 Phase B 51P Unit 3 Trip OUT 13 Phase B 59P Unit 1 Trip OUT 17 Phase B 59P Unit 2 Trip OUT 17 Phase B 59P Unit...

Page 237: ...nfeed Trip 67G Q OUT 9 Weak Infeed Trip Distance OUT 8 Zone1 Step Distance Trip Zone2 Step Distance Trip Zone3 Step Distance Trip Zone4 Step Distance Trip Generic Protection Output Default 27P Unit 1...

Page 238: ...on 59G Unit 1 Enabled 59G Unit 2 Enabled 59P Unit 1 Enabled 59P Unit 2 Enabled 59P Unit 3 Enabled 67G Forward Direction 67G Reverse Direction 67 Time Delayed Forward Direction 67G Time Delayed Reverse...

Page 239: ...stic AG Zone 2 Characteristic AG Zone 3 Characteristic AG Zone 4 Characteristic Any Pole Open Arc Detector Arc Detector Enabled BC Fault OUT 58 59 BC Zone 1 Characteristic BC Zone 2 Characteristic BC...

Page 240: ...e 1 Enabled Distance Unit Zone 2 Enabled Distance Unit Zone 3 Enabled Distance Unit Zone 4 Enabled External Three Pole Trip External Trip Fail to Close Recloser Lock Out Fault Detector Activation OUT...

Page 241: ...1P Unit 1 Pick Up Condition Phase A 51P Unit 2 Pick Up Condition Phase A 51P Unit 3 Pick Up Condition Phase A 67P Forward Direction Phase A 67P Reverse Direction Phase A Retrip OUT 2 Phase A Time Dela...

Page 242: ...Command Recloser Lock Out OUT 5 Recloser Start Recloser Unblock Command Remote Breaker Open Detector Enabled Series Compensated Lines Logic Enabled Stub Protection Detector Enabled Synchrocheck Close...

Page 243: ...Zone 2 Fault OUT 62 Zone 2G inst Forward Direction Zone 2G Inst Reverse Direction Zone 2G Time Delayed Forward Zone 2G Time Delayed Reverse Zone 2P inst Forward Direction Zone 2P Inst Reverse Directi...

Page 244: ...y Pole Open Input Block 27P Unit 1 IN 48 Block 27P Unit 2 IN 49 Block 27P Unit 3 IN 50 Block 50G Unit 1 IN 33 Block 50G Unit 2 IN 34 Block 50G Unit 3 IN 35 Block 50P Unit 1 IN 30 Block 50P Unit 2 IN 3...

Page 245: ...t for 67G Q IN 9 Channel Trip Block Input for Distance IN 8 Close Trip IN 21 Console Contacts Position BF Pick Up Input IN 22 Disable 50Q Unit 1 Disable 50Q Unit 2 Disable 50Q Unit 3 Disable 51G Unit...

Page 246: ...elete Oscillography Command IN 1 Distance Reset Manual Close Command IN 3 Manual Open Command IN 4 Open I2 Counter Reset Command IN 68 Reclose Counter Reset Command Recloser Manual Block Command IN 19...

Page 247: ...t 2 Enable 27P Unit 3 Enable 50 BF Breaker Failure Unit Enable 50G Unit 1 Enable 50G Unit 2 Enable 50G Unit 3 Enable 50P Unit 1 Enable 50P Unit 2 Enable 50P Unit 3 Enable 50Q Unit 1 Enable 50Q Unit 2...

Page 248: ...nable Input Pole Discrepancy Enable Input Remote Open Breaker Detector Enable Input Series Compensated Logic Enable Input Stub Protection Detector Enable Input Others Default Any Unit Picked Up Change...

Page 249: ...and Failure Protection Trip Protection in Service Settings Change Initialization Settings File Received Settings Group 1 in Service OUT 50 Settings Group 2 in Service OUT 51 Settings Group 3 in Servic...

Page 250: ...Distance Relay Logic Programming GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank March 1 2009 11 42 973 334 3100...

Page 251: ...wnloaded from the GARD chassis has all graphics removed Once the GARD is powered up from the Home web page click on Settings select File Operations select Save File to PC select Gard System Manual PDF...

Page 252: ...er source on the rear terminal block labeled for Power Supply 1 and Power Supply 2 3 Locate the rear panel power switch move the switch to the OFF position before connecting power 4 Connect a station...

Page 253: ...et the rear port IP address if desired from the pull down menu Settings Chassis Configuration Controller and set the system time through the Systems Labels and Time web page 12 5 LOGIC SOFTWARE VERIFI...

Page 254: ...ed in accordance with the AC schematic shown below The Distance Relay I O module must be installed in the same physical slot as the Distance Relay Module 2 3 4 5 6 7 8 9 GARD 8000 A B C Slot 3 VA VB V...

Page 255: ...N Figure 12 3 Distance Relay I O connections Commissioning 12 7 DISTANCE RELAY CONFIGURATION SETTINGS VERIFICATION 1 Click on Settings and select Chassis Configuration 2 At the Chassis Configuration p...

Page 256: ...on the Home page in order to display the Chassis Configuration Status web page 2 At the Chassis Configuration Status web page click on the Distance Relay module 3 At the Distance Protection web page...

Page 257: ...le hardware input or output can be freely assigned to any logical input or output that is available in the Input or Output mapping block please use the GARD logic drawing as a reference Verify which c...

Page 258: ...nc 3 Click on Output Mapping and verify all Output Mapping 4 Mapping changes can be made using the same web pages Any changes on the Input and Output mapping web pages must be first saved and then rel...

Page 259: ...tings from the drop down menu select System Labels and Triggers and then select LED Logic Assignments 3 Confirm correct LED assignments Note Not all labels are shown 12 11 SYSTEM CONFIGURATION VERIFIC...

Page 260: ...ional testing of the Distance Relay This commissioning procedure covers the following BASIC tests A B C Phase to Ground 3 Phases to Ground A to B Phase A to C Phase 3 Phase Before proceeding with any...

Page 261: ...files can be opened with COMTRADE compatible software used for viewing the Oscillography records RFL provides free of charge a copy of COMTRADE compatible software that can be downloaded from the RFL...

Page 262: ...se Angle Frequency Hz VA 69 00V 0 00 60 00 30 0V 0 00 60 0 VB 69 00V 240 00 60 00 69 28V 240 00 60 0 VC 69 00V 120 00 60 00 69 28V 120 00 60 0 IA 0 00A 0 00 60 00 10 00A 70 00 60 0 IB 0 00A 0 00 60 00...

Page 263: ...Frequency Hz Amplitude Phase Angle Frequency Hz VA 69 00V 0 00 60 00 69 00V 0 00 60 0 VB 69 00V 240 00 60 00 69 00V 240 60 0 VC 69 00V 120 00 60 00 5 00V 120 60 0 IA 0 00A 0 00 60 00 0 00A 0 00 60 0...

Page 264: ...one 1 Phase C A Pre Fault Settings Fault Settings Source Amplitude Phase Angle Frequency Hz Amplitude Phase Angle Frequency Hz VA 69 00V 0 00 60 00 50 00V 22 89 60 0 VB 69 00V 240 00 60 00 144 34V 165...

Page 265: ...ay settings for a specific application were not programmed at the factory modify the programmable settings under Settings Chassis Configuration Distance Relay 7 Modify the Front Panel LED Logic Assign...

Page 266: ...Commissioning GARD 8000 Distance Relay RFL Electronics Inc This page intentionally left blank March 1 2009 12 16 973 334 3100...

Page 267: ...ctions 3U 6 2 F Fault Detector 9 29 Increase of Sequence Currents 9 29 Fault Locator 10 13 Fault Records Web Pages 10 8 Frequency Units 9 68 Functional Testing 12 10 G General description 2 1 General...

Page 268: ...ts 8 12 Settings Breaker Failure 7 27 Current Misc 7 23 Current Elements Directional 7 15 Phase 7 16 DFR 7 30 Distance Elements Pilot Comms Scheme 7 9 Swing Block and Advanced Functions 7 11 Zone 1 to...

Page 269: ...N NOTES This section contains application notes which are intended to assist users in configuring their GARD Distance Relay Module In most cases the application note would be customer specific The fol...

Page 270: ...Application Notes GARD 8000 Distance Relay RFL Electronics Inc March 1 2009 14 2 973 334 3100...

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