BECKWITH ELECTRIC M-4272 Instruction Book Download Page 51 | Manualshive

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BECKWITH ELECTRIC M-4272 Instruction Book Download Page 51

M-4272 Instruction Book

1–6

Figure 1-5 illustrates a typical industrial plant one-
line diagram. This application has two independent
sources, with each half of the processing plant
operated by each source. There is normally an
open tie breaker between the two motor buses. In
this application two M-4272 MBTS are used. Each
system controls a source breaker and the tie breaker.
Whichever source fails has its breaker tripped and
the tie breaker is closed, this transfers the motor
bus load to the remaining source which now supplies
power to the entire plant.

In general, the voltage characteristic of a motor bus
during a transfer is governed by the motor loads
operating at the time of transfer. The majority of
auxiliary system motors are induction motors with
few synchronous motors used in isolated cases.
The types of motors in use will, to a great degree,
determine the voltage characteristics of the auxiliary
system buses. When the bus is disconnected from
the source, the motors will maintain a voltage due
to the energy stored in the motor fields. The intital
magnitude of the voltage depends on the integrity of
the power source prior to being disconnected.

A three phase fault in the Unit Auxiliary Generator
Step-up transformer or on the high voltage bus near
the plant may completely deenergize the motor
fields and the resultant voltage will be minimal.
However, for all other cases a significant voltage
will be induced on the motor bus. The induced
voltage will have a dynamic amplitude and phase
charateristic that will depend on the inertia of the
motor loads and the field energy stored in the
motors.

The charactersistics for synchronous and induction
motors are shown in Figures 1-6 and 1-7 respectively.
Figure 1-6 represents a 6000 hp I.D. fan motor
operating at 25% load proior to transfer. This is an
example of a characteristic for a large motor driving
a high inertia load. The voltage magnitude requires
42 cycles to drop 50% of it’s initial value and the
angle takes more than 60 cycles to complete a 360
degree rotation. The 960 hp boiler circulating pump
motor used for Figure 1-7 data shows a dramatic
variation in characteristics. The voltage magnitude
drops to 50% within 10 cycles and the phase
completes a 360 degree rotation in less than eight
cycles.

STATION BUS SYSTEM

N.C.

52

S1

VT-B1

N.C.

52

S2

VT-S2

BUS 1

BUS 2

VT-B2

52T

N.O.

BUS-TIE

VT-S1

CT-S1

CT-S2

CT-B1

CT-B2

M-4272

M-4272

M

M

M

M

Source 1 (S1)

Source 2 (S2)

I

S1

V

S1

I

S2

V

Bus

V

S2

I

S1

V

S1

I

S2

V

Bus

V

S2

NOTE

: Current transformers are used for the M-4272 function 50BF, they are not required for transfer

operation.

Figure 1-5 Industrial Processing Plant Bus transfer One-line

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Summary of Contents for M-4272

Page 1: ...Instruction Book Book 1 of 2 M 4272 Motor Bus Transfer System ...

Page 2: ...motor bus transfers based on varying system conditions Applicable for one way and bi directional Manual and Automatic transfers Can be expanded to accomodate multiple breaker configurations Multiple setpoint profiles for various application requirements Integrated control supervisory functions sequence of events and oscillograph recording in one device Extensive commissioning tools including ringd...

Page 3: ...ay for Fast Transfer Programmable load shedding prior to initi ating Delayed In phase Transfer and Re sidual Voltage Transfer Verify the new source the source to which the bus is being transferred is healthy and within acceptable upper and lower voltage limits Circuit Breaker Control The digital Motor Bus Transfer System includes the following Circuit Breaker Control features Control of two circui...

Page 4: ... in the open transition transfer operation Sequential Transfer Mode Once a transfer is initiated and if the Sequential Mode is selected the old source breaker is tripped within 10 ms and closure of the new source breaker is attempted only upon confirmation by the breaker status contact that the old source breaker has opened Within 4 ms of receipt of this confirmation all three methods Fast Delayed...

Page 5: ...e is to permit a transfer when the normally closed breaker is accidentally inadvertently tripped resulting in two open breakers This operation is very similar to the regular transfer process except it does not send out the trip command since the second breaker is already opened Lockout Blocking A transfer is blocked when any lockout blocking condition described below is active Voltage Blocking If ...

Page 6: ... model at a range of 47 to 53 Hz Beyond these ranges the accuracy is 0 1 Hz 3 phase 0 4Hz single phase This timer is used to limit the time window during which an in phase transfer may be initiated Value in parenthese applies to single phase unit For Delayed In Phase Transfer phase angle accuracy at first phase coincidence is 10 0 degrees with up to 10 0 Hz slip frequency Residual Voltage Transfer...

Page 7: ...k before make mode of operation open transition Delayed In Phase Transfer Delta Voltage Limit 0 to 120 V 1 V 0 5 V or 2 Delta Frequency Limit 0 10 to 10 00 Hz 0 05 Hz 0 02 Hz 0 1Hz Time Window 10 to 600 Cycles 1 Cycle 1 Cycle or 1 The pickup accuracy applies to the 60 Hz model at a range of 57 to 63 Hz and to the 50 Hz model at a range of 47 to 53 Hz Beyond these ranges the accuracy is 0 1 Hz 3 ph...

Page 8: ...60 V 1 V 0 5 V or 2 Delta Frequency Limit 0 02 to 0 50 Hz 0 01 Hz 0 01 Hz or 5 Time Window 1 0 to 50 0 Cycles 0 5 Cycle 1 Cycle Tripping Command Time Delay 0 0 to 30 0 Cycles 0 5 Cycle 1 Cycle Accuracy defined at a constant frequency with a delta frequency of zero 0 This time delay is only used in the Manual Transfer to implement a Hot Parallel Transfer make before break Auto Trip Trip Originally ...

Page 9: ...l Transfer Initiate Time Delay 5 0 to 8160 Cycles 1 Cycle 1 Cycle or 1 Remote Manual Transfer Initiate Time Delay 7 0 to 8160 Cycles 1 Cycle 1 Cycle or 1 Blocking After Transfer Time 6 0 to 8160 Cycles 1 Cycle 1 Cycle or 1 Trip Command Pulse Length 15 to 30 Cycles 1 Cycle 1 Cycle Close Command Pulse Length 15 to 30 Cycles 1 Cycle 1 Cycle 1 This is the time it takes the breaker to close from the is...

Page 10: ...pplicable only when the bus phase voltage input is applied 50S1 Instantaneous Phase Overload Detection Source 1 Pickup 1 2 1 0 to 100 0 A 0 1 A 0 1 A or 3 0 2 to 20 0 A 0 02 A or 3 Time Delay 1 to 8160 Cycles 1 Cycle 2 Cycles or 1 Values in parentheses apply to 1A secondary rating Since this is only a single phase element the 50S1 Function can only be used for overload detection and not used for o...

Page 11: ...us voltage Pickup 1 2 50 00 to 67 00 Hz 0 01 Hz 0 02 Hz 1 0 Hz 40 00 to 57 00 Hz Time Delay 1 2 5 to 65 500 Cycles 1 Cycle 3 Cycles or 1 The pickup accuracy applies to 60 Hz models at a range of 57 to 63 Hz and to 50 Hz models at a range of 47 to 53 Hz Beyond these ranges the accuracy is 0 1 Hz 3 phase 0 4Hz single phase The 81 1 Function can be used to initiate Load Shedding The 81 Function is au...

Page 12: ...d from internally generated logic Trip and Close Circuit Monitor Trip Circuit Monitor TCM 1 Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 TCM 1 Dropout Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 TCM 2 Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 TCM 2 Dropout Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 Close Circuit Monitor CCM 1 Time Delay 1 to 8160 Cycles 1 Cycle 1 Cycle or 1 C...

Page 13: ...graphic recorder is triggered by a designated control status input usually a protective relay initiate input an automatically initiated signal a trip output a manual transfer signal or from serial communications When untriggered the recorder continuously stores waveform data thereby keeping the most recent data in memory When triggered the recorder stores pre trigger data then continues to store d...

Page 14: ...transformer burden is less than 0 5 VA at 5 A 5 A option or 0 3 VA at 1 A 1 A option One Source 2 Current Input Rated for a current IR of 5 0 A or 1 0 A optional at 60 Hz or 50 Hz Will withstand 4 IR continuous current and 100 IR for 1 second Current transformer burden is less than 0 5 VA at 5 A 5 A option or 0 3 VA at 1 A 1 A option Control Status Inputs To provide proper operation and breaker st...

Page 15: ...able gain amplifier analog to digital converter DSP chip Host processor and all RAM chips After the initial self test is complete and the system is operating normally continuous self check verification continues to check for correct operation of the system The continuous self check verification tests are performed in the background and do not effect the response time of the unit to emergency condi...

Page 16: ...ion information is used to correct the local calendar clock and provide greater system wide synchronization for status and oscillograph time tagging HMI Module Local access to the M 4272 is provided through the M 3931 Human Machine Interface HMI Module allowing for easy to use menu driven access to all functions using a 6 pushbutton keyboard and a 2 line by 24 character alphanumeric display The M ...

Page 17: ...atus Initiating Outputs Selectable And Or Outputs Initiate Via Communication Point Programmed Time Delay Programmed Outputs 5 16 Log in Sequence of Events 0 65 500 cycles 1091sec at 60Hz Log Pickup in Sequence of Events ISSLogic N Activated This section of ISSLogic initiates the Function Operation This section of ISSLogic is used to Block the Function Operation This section of ISSLogic used to act...

Page 18: ...e EN 60255 22 2 Class 4 15kV air discharge Fast Transient Disturbance Test EN 60255 22 4 Class A 4 kV 2 5 kHz Surge Withstand Capability ANSI IEEE 2 500 V pk pk oscillatory applied to each independent circuit to earth C37 90 1 2 500 V pk pk oscillatory applied between each independent circuit 1989 5 000 V pk Fast Transient applied to each independent circuit to earth 5 000 V pk Fast Transient appl...

Page 19: ...dard 19 semiflush 4 unit high rack mount panel design conforming to ANSI EIA RS 310C and DIN 41494 Part 5 specifications Optional mounting is available Approximate Weight 20 lbs 9 1 kg Approximate Shipping Weight 30 lbs 13 6 kg Recommended Storage Parameters Temperature 5 C to 40 C Humidity Maximum relative humidity 80 for temperatures up to 31 C decreasing to 31 C linearly to 50 relative humidity...

Page 20: ...KER CONFIGURATION THREE BREAKER CONFIGURATION VT M VT SU VT B 52 M STATION BUS SYSTEM N C M TWO BREAKER CONFIGURATION CT M N O 52 SU CT SU UNIT AUXILIARY TRANSFORMER STATION SERVICE TRANSFORMER M M 4272 IS1 IS2 VS1 VS2 VBus STATION BUS SYSTEM N C 52 S1 VT B1 N C 52 S2 VT S2 BUS 1 BUS 2 VT B2 52T N O BUS TIE VT S1 CT S1 CT S2 CT B1 CT B2 M 4272 M 4272 M M M M Source 1 S1 Source 2 S2 IS1 IS1 VS1 VS2...

Page 21: ... TRANSFER TIME WINDOW 10 TO 600 CYCLES 4ms DELAY RESIDUAL VOLTAGE TRANSFER RESIDUAL VOLTAGE TRANSFER ENABLE FIXED TIME TRANSFER ENABLE CLOSE OUTPUT COMMAND TERMINATES ALL TRANSFER TIME WINDOWS 3000 CYCLES MAXIMUM INCOMPLETE TRANSFER LOCKOUT TIME TRANSFER IN PROCESS TERMINATES WITH CLOSE OUTPUT COMMAND FIXED TIME TRANSFER 30 TO 1000 CYCLES 30 CYCLES DELAY TRANSFER Figure 3 Time Sequence of Transfer...

Page 22: ...HASE TRANSFER TIME WINDOW 10 TO 600 CYCLES RESIDUAL VOLTAGE TRANSFER RESIDUAL VOLTAGE TRANSFER ENABLE FIXED TIME TRANSFER ENABLE CLOSE OUTPUT COMMAND TERMINATES ALL TRANSFER TIME WINDOWS 3000 CYCLES MAXIMUM INCOMPLETE TRANSFER LOCKOUT TIME TRANSFER IN PROCESS TERMINATES WITH CLOSE OUTPUT COMMAND FIXED TIME TRANSFER 30 TO 1000 CYCLES 30 CYCLES DELAY Figure 4 Time Sequence of Transfer Logic in Simul...

Page 23: ...operation 48 125 250 24 Q E T N O C D N I D E T S I L C US 83F4 R 2 1 3 4 BECKW IT H ELECT RIC CO INC 7 2 7 5 4 4 2 3 2 6 6 19 0 118 t h AV E NO L A RGO FL 3 3 7 7 3 OUT PUTS IN IN IN IN IN IN IN IN IN IN IN IN INPUTS RT N RS 4 8 5 COM 3 IN 6 IN 5 IN 4 IN 3 IN 2 IN 1 INPUTS RT N IN S ELF T EST OUT PUTS PS1 PS2 F1 F2 3 A MP 2 5 0 V 3 A B F3 F4 6 0 14 0 V A C 5 0 6 0 Hz 8 78 SOURCE 1 75 76 77 41 42 ...

Page 24: ...RANSFER Made in U S A C N Y S E M I T DIAG 1 M C T TCM 2 2 M COM 1 SOURCE 2 SOURCE 1 BRKR OPEN STATUS OPEN BRKR INPUTS SYS 17 15 13 11 7 OPEN OPEN 9 OPEN 18 13 16 12 10 14 6 OPEN OUTPUTS 16 15 14 12 11 10 9 RESET 25 X 45 SLOT 4 PLACES COM 1 OK BRKR CLOSED BRKR CLOSED PS 2 PS 1 17 50 44 5 30 00 00 12 4 00 10 16 6 96 17 7 1 48 3 76 38 97 18 25 46 4 19 00 48 26 9 97 25 32 CO Figure 6 Horizontal Mount...

Page 25: ...NC 6190 118th Avenue North Largo Florida 33773 3724 U S A PHONE 727 544 2326 FAX 727 546 0121 E MAIL marketing beckwithelectric com WEBPAGE www beckwithelectric com Figure 7 Panel Mount Cutout Dimensions 18 34 46 6 17 68 44 91 33 84 1 51 3 84 4 00 10 16 7 02 17 83 0 28 0 71 4X RECOMMENDED CUTOUT 4 UNIT PANEL M 4272 TOLERANCE XX 015 ...

Page 26: ... equipment in a test area the Protective Earth Terminal must be attached to a separate ground securely by use of a tool since it is not grounded by external connectors Do NOT operate in an explosive environment Do not operate this equipment in the presence of flammable or explosive gases or fumes To do so would risk a possible fire or explosion Keep away from live circuits Operating personnel must...

Page 27: ...atures are maintained Always replace components with those of equal or better quality as shown in the Parts List of the Instruction Book Avoid static charge This unit contains MOS circuitry which can be damaged by improper test or rework procedures Care should be taken to avoid static charge on work surfaces and service personnel Use caution when measuring resistances Any attempt to measure resist...

Page 28: ... 2 STATUS RESET Pushbutton 2 5 2 2 Manual Operation 2 5 Overview of Manual Transfer Methods 2 5 Transfer Modes 2 5 Sequential Transfer Mode 2 5 Simultaneous Transfer Mode 2 5 Transfer Methods 2 6 Fast Transfer 2 6 Delayed In Phase Transfer 2 6 Residual Voltage Transfer 2 6 Hot Parallel Transfer 2 6 Initiate Manual Transfer ISScom 2 7 Initiate Manual Transfer MBTS Front Panel 2 7 Remote Local Contr...

Page 29: ...Print and Print Setup Command 3 4 File Exit Command 3 4 Comm Menu 3 4 System Menu 3 6 System Setup 3 6 System Setup Setup System 3 6 System Setup Setpoints 3 7 System Setup Setpoints Display All 3 7 System Setup Setpoints Configure 3 7 Set Date Time Command 3 11 System Monitor 3 11 System Monitor Primary Metering 3 12 System Monitor Secondary Metering and Status 3 12 System Monitor Phasor Diagram ...

Page 30: ...etup 3 31 Tools System Outputs Test 3 32 Tools System Comm Setup 3 33 Tools System Ethernet Setup 3 33 Tools System Firmware Update 3 33 Tools Calibrate Unit 3 33 Tools System Error Codes Counters 3 33 3 2 ISSplotTM 3 34 ISSplot File Menu 3 36 ISSplot View Menu 3 36 ISSplot Settings Menu 3 36 ISSplot Window Menu Help Menu 3 38 Window Menu Help Menu 3 40 Chapter 4 System Setup and Setpoints 4 1 Uni...

Page 31: ...nts Recorder Setup 4 22 4 2 System Setup 4 23 MBTS Setup System 4 23 4 3 System Diagrams 4 28 4 4 System Setpoints 4 34 Transfer Settings 4 35 Common Settings CS 4 35 Common Settings common Function Settings Tab 4 36 Common Settings Transfer Mode 4 36 Common Settings Upper Lower Voltage Limit New Source 4 37 Common Settings Breaker Closing Time 4 37 Common Settings S1 S2 Breaker Closing Time Devia...

Page 32: ...t Transfer Delta Voltage Limit 4 49 Auto Fast Transfer Delta Frequency Limit 4 49 Auto Fast Transfer Time Window 4 50 Auto Fast Transfer Closing Command Time Delay 4 50 Auto Fast Transfer Blocking Inputs Selection 4 50 Fast Transfer Tab Save Cancel 4 50 Automatic Transfer Settings Delayed In Phase Transfer Tab 4 51 Auto Delayed In Phase Transfer Delta Voltage Limit 4 51 Auto Delayed In Phase Trans...

Page 33: ...oltage Transfer Residual Voltage Limit 4 61 Manual Residual Voltage Transfer Load Shedding Time Delay 4 61 Manual Residual Voltage Transfer Blocking Inputs Selection 4 61 Manual Residual Voltage Transfer Save Cancel 4 61 Manual Transfer Settings Hot Parallel Transfer Tab 4 63 Manual Hot Parallel Transfer Delta Phase Angle Limit 4 63 Manual Hot Parallel Transfer Delta Voltage Limit 4 63 Manual Hot ...

Page 34: ...94 Dropout Delay Timer 4 94 Reset Delay Timer 4 94 Chapter 5 Installation 5 1 General Information 5 1 5 2 Mechanical Physical Dimensions 5 2 5 3 External Connections 5 4 Power Supply 5 4 Grounding Requirements 5 4 Unit Isolation 5 4 Insulation Coordination 5 4 Torque Requirements 5 4 MBTS Outputs 5 4 Replacement Fuses 5 4 5 4 Circuit Board Switches and Jumpers 5 13 5 5 ISScom Communications and An...

Page 35: ...pback Test 6 10 COM3 Test 2 wire 6 11 Clock ON OFF 6 12 Sys OK LED Flash Illuminated 6 12 6 3 Metering Tests 6 13 Equipment Required 6 13 Metering Test Setup 6 13 Voltage Current Verification 6 14 Torque Requirements 6 14 6 4 Auto Calibration 6 14 Appendices Appendix A Configuration Record Forms A 1 Appendix B Communications B 1 Appendix C Self Test Error Codes C 1 Appendix D Transfer Event Log Sa...

Page 36: ...n Menu Flow 2 4 2 4 Initiate Manual Transfer Confirmation Screen 2 7 2 5 Initiate Manual Transfer Command Sent Confirmation Screen 2 7 2 6 Remote Local Mode Dialog Screen 2 8 2 7 Device On Off Dialog Box 2 9 2 8 System Error Codes and Output Counters Dialog Screen 2 11 2 9 Primary Metering Screen 2 13 2 10 Secondary Metering and Status Screen 2 14 Chapter 3 3 1 ISScom Program Icon 3 1 3 2 ISScom M...

Page 37: ...sfer Event Log Pickup I Os Status Screen 3 21 3 27 Clear Transfer Event Log Status Command Confirmation Screen 3 21 3 28 Transfer Event Log Status Cleared Confirmation Screen 3 21 3 29 Transfer Event Log Clear History Command Confirmation Screen 3 21 3 30 Transfer Event Log History Cleared Confirmation Screen 3 21 3 31 Sequence Of Events Setup 3 22 3 32 Sequence of Events Recorder Download Screen ...

Page 38: ...Screen 3 31 3 54 Miscellaneous Dialog Screen 3 32 3 55 System Outputs Test Dialog Screen 3 32 3 56 System Communication Setup Dialog Screen 3 32 3 57 Ethernet Settings 3 33 3 58 System Error Codes Output Counters Dialog Screen 3 33 3 59 ISSplot Main Screen 3 34 3 60 ISSplot Menu Structure and Submenu Callouts 3 35 3 61 Select Waveforms Dialog Screen 3 36 3 62 Change Colors Dialog Screen 3 36 3 63 ...

Page 39: ...on Selection Screen 4 24 4 22 S1 S2 CT Configuration Selection Screen 4 26 4 23 Bus VT Configuration Selection Screen 4 26 4 24 Latched Outputs Selection Screen 4 27 4 25 Pulsed Outputs Selection Screen 4 27 4 26 Input Active States Selection Screen 4 27 4 27 Three Phase Wye Wye VT Three Line Connection Diagram 4 28 4 28 Three Phase Open Delta VT Three Line Connection Diagram 4 29 4 29 Single Phas...

Page 40: ...tomatic Transfer Settings Fast Transfer Tab Dialog Screen 4 49 4 50 Fast Transfer Blocking Inputs Selection Dialog Screen 4 50 4 51 Automatic Transfer Settings Delayed In Phase Transfer Tab Dialog Screen 4 51 4 52 Automatic Transfer Settings Residual Voltage Transfer Tab Dialog Screen 4 52 4 53 Automatic Transfer Settings Fixed Time Transfer Tab Dialog Screen 4 54 4 54 Manual Transfer Settings Dia...

Page 41: ...1 4 74 50BF 1 Source 1 Breaker Failure I O Selection Dialog Screen 4 72 4 75 50BF 1 Source 1 Breaker Failure Initiate Inputs Initiate Outputs Selection Dialog Screen 4 72 4 76 50BF 2 Source 2 Breaker Failure Dialog Screen 4 73 4 77 S1 BF Source 1 Breaker Failure Breaker Status Dialog Screen 4 74 4 78 S1 BF Source 1 Breaker Failure Breaker Status I O Selection Dialog Screen 4 74 4 79 S2 BF Source 2...

Page 42: ...or Block System Status 4 93 4 101 Dropout Delay Timer Logic Diagram 4 94 4 102 Reset Delay Timer Logic Diagram 4 94 4 103 IssLogic Function Diagram 4 95 Chapter 5 5 1 Mechanical Physical Dimensions 5 2 5 2 Panel Mount Cutout Dimensions 5 3 5 3 Power Supply Connection 5 4 5 4 External Connections 5 5 5 5 Three Phase Wye Wye VT Three Line Connection Diagram 5 6 5 6 Three Phase Wye Primary Wye Second...

Page 43: ...munication Setup A 2 A 2 Setup System A 3 A 3 System Setpoints Transfer Settings page 1 of 7 A 4 A 4 System Setpoints Function Settings page 1 of 18 A 11 Appendix B B 1 Null Modem Cable M 0423 B 2 B 2 RS 232 Fiber Optic Network B 3 B 3 RS 485 Network B 4 B 4 COM2 Pinout for Demodulated TTL Level Signal B 4 Appendix D D 1 Transfer Event Log Summary Printout D 2 D 2 Transfer Event Log Detail Printou...

Page 44: ...Configuration 5 14 5 4 Close Circuit Monitor 1 Input Voltage Select Jumper Configuration 5 15 5 5 Trip Circuit Monitor 2 Input Voltage Select Jumper Configuration 5 15 5 6 Close Circuit Monitor 2 Input Voltage Select Jumper Configuration 5 15 Chapter 6 6 1 Output Contacts 6 4 6 2 Input Contacts 6 6 6 3 Trip Coil and Close Coil Input Contacts 6 6 Appendix A A 1 Relay Configuration Table A 29 Append...

Page 45: ...xviii M 4272 Instruction Book This Page Left Intentionally Blank ...

Page 46: ...the unit choosing active functions output contact assignment and input 1Introduction 1 1 Instruction Book Contents 1 1 1 2 M 4272 Motor Bus Transfer System MBTS 1 2 1 3 Application 1 4 blocking designation It also illustrates the definition of system quantities and equipment characteristics required by the MBTS and describes the individual function settings Chapter 5 Installation The person or gro...

Page 47: ...ystem The M 4272 Motor Bus Transfer System MBTS is a microprocessor based unit that uses digital signal processing technology to provide automatic and manual transfer modes The available internal functions of the system are listed in Table 1 1 The nomenclature follows the standards of ANSI IEEE Std C37 2 Standard Electric Power Systems Device Function Numbers where applicable The available MBTS Tr...

Page 48: ... manually entered using the HMI COM3 located on the rear terminal block of the MBTS is a 2 wire RS 485 communications port The system may be remotely set and interrogated utilizing either a hard wired RS 232 serial connection or modem COM2 when activated as RS 232 or COM3 or when purchased the ethernet connection RJ45 activated M 3872 ISScom Communications and Oscillograph Analysis Software ISScom...

Page 49: ...ontrols the Source 1 and Source 2 breakers In a normal transfer a protective MBTS recognizes an abnormal condition and operates an 86 lockout MBTS which will trip the Source 1 breaker and also initiates a transfer The M 4272 MBTS will issue a trip command to the Source 1 breaker and then it will issue a close command to the Source 2 breaker This will transfer the Motor Bus load from the troubled S...

Page 50: ...s are used for the M 4272 function 50BF they are not required for transfer operation Figure 1 3 Typical Two Breaker Configuration 52 S1 AUXILIARY MOTOR BUS 52 S2 GENERATOR TRANSMISSION SYSTEM UNIT AUXILIARY TRANSFORMER STATION SERVICE TRANSFORMER GENERATOR STEP UP TRANSFORMER STARTUP SOURCE BREAKER M M M Figure 1 4 Unit Connected Generator Motor Bus transfer One line ...

Page 51: ...ansformer or on the high voltage bus near the plant may completely deenergize the motor fields and the resultant voltage will be minimal However for all other cases a significant voltage will be induced on the motor bus The induced voltage will have a dynamic amplitude and phase charateristic that will depend on the inertia of the motor loads and the field energy stored in the motors The character...

Page 52: ...motor bus transfer issue and developing schemes to accomplish transfers that promote process continuity while causing no damage to the motors or the loads An important value to decide the viability of MBT is the resultant volts per hertz V Hz across the breaker The resultant V Hz is derived from the V Hz vectors of the motor bus and the new source at the instant just prior to connection and must n...

Page 53: ...mary source and a large standing phase angle may be present between them precluding a hot parallel transfer Assuming the two sources phase angle relationship is acceptable with the two sources paralleled currents flowing into and through the bus may violate the interrupt rating for the circuit breakers and the short term withstand ratings of the source transformers A fault occurring either on the ...

Page 54: ...n early b contact a close command is issued to the new source breaker The phase angle delta voltage and delta frequency from the motor bus and the new source are evaluated prior to the transfer to assure that the motor bus and the new source are in synchronism This is the second fastest transfer type that does not deliberately parallel the sources A close command used in the fast sequential transf...

Page 55: ...transfer which would be made if the phase angle between the motor bus and the new source is not too large If that transfer was not made an in phase residual or fixed time transfer would be initiated Obviously the fast transfer offers the greatest chance of process continuity as the interruption period to the motors is short The in phase transfer provides one more opportunity to transfer with a goo...

Page 56: ...t is increased EXIT Pushbutton The EXIT pushbutton is used to exit from a displayed screen and move up the menu tree Any changed setpoint in the displayed screen will not be saved if the selection is aborted using the EXIT pushbutton This chapter contains information that describes the operation of the Motor Bus Transfer System MBTS M 4272 operation includes the following Front Panel Controls and ...

Page 57: ... Inputs 4 and 5 RED CLOSED Table 2 1 Breaker Status LED Input Configurations Power Supply 1 2 LED The Green PS LED indicator will remain illuminated for the appropriate power supply whenever power is applied to the unit and the power supply is operating correctly The two power supplies are not redundant and the unit requires both supplies to operate for correct unit functioning M 3972 Status Modul...

Page 58: ...ANTED INIT TRANSFER INIT rmte_lcal Main Menu Flow INIT MANUAL TRANSFER yes NO auto_xfer man xfer stat comm setup Figure 2 2 Screen Message Menu Flow ENTER EXIT B E Integrated Synchronizing Systems C T W C K L EC E C H I R T I C IN O M 4272 R MOTOR BUS TRANSFER Made in U S A C N Y S E M I T DIAG 1 M C T TCM 2 2 M C C CCM 1 SOURCE 2 SOURCE 1 BRKR OPEN STATUS OPEN BRKR SYS 15 13 11 7 OPEN OPEN 9 OPEN...

Page 59: ...hecksums COMMUNICATION stat COMM setup Com1 Setup Com2 Setup Com3 Setup Communication Address Comm Access Code Ethernet Setup Ethernet IP Address SETUP UNIT stat comm SETUP Software Version Serial Number Alter Access Codes User Control Number User Logo Line 1 User Logo Line 2 Clear Alarm Counter Date Time Clear Error Codes Eth Firmware Version Diagnostic Mode DIAGNOSITC MODE Output Test Relay Inpu...

Page 60: ...still tripped When the four methods of transfer are enabled the new source breaker then closes either as a result of a subsequent movement into the delta phase angle limit within the Fast Transfer Time Window a movement through a predicted zero phase coincidence within the Delayed In Phase Transfer Time Window or by a drop in the motor bus voltage below the Residual Voltage Transfer limit or after...

Page 61: ...The conditions that are necessary to execute a Residual Voltage Transfer are No lockout blocking conditions exist The conditions for a Fast Transfer have not been met If this setting is enabled The conditions for Delayed In Phase transfer have not been met If this setting is enabled The motor bus voltage decreases to less than the Residual Voltage Transfer limit setting adjustable from 5 to 60 V w...

Page 62: ...ent confirmation screen Figure 2 5 Figure 2 5 Initiate Manual Transfer Command Sent Confirmation Screen The MBTS will start the Manual Transfer based on the system parameters present and MBTS settings 7 If the Manual Transfer cannot be completed the Incomplete Transfer Blocked indicator will be illuminated System Status The MBTS is blocked from issuing operation commands 8 If the MBTS completes th...

Page 63: ...r Opened LED HMI will display scroll the following screens MANUAL FAST TRANSFER 08 NOV 2005 10 11 49 948 MANUAL FAST TRANSFER OUTPUTS MANUAL FAST TRANSFER 04 01 MANUAL FAST TRANSFER PICKUP ELEMENTS MANUAL FAST TRANSFER OPERATE ELEMENTS 12 Press and release the Status Reset pushbutton to reset the status indicators Remote Local Control The Remote Local selection feature provides control of the MBTS...

Page 64: ...eration All output relays return to activated states Device ON OFF ISScom To switch the MBTS ON or OFF utilizing ISScom perform the following Q NOTE Communication must be established with the target MBTS for this procedure 1 From the ISScom Main Screen menu bar select Device ON OFF ISScom will display the Device On OFF dialog screen Figure 2 7 Figure 2 7 Device On Off Dialog Box 2 Select the desir...

Page 65: ...yed DEVICE ON OFF ON_OFF exit 8 The MBTS is now in the selected Device Mode Press EXIT as necessary to return to the Main Menu System Error Codes and Output Counters The System Error Codes and Output Counters feature provides the user with the ability to view and clear system Error Codes Processor Resets Alarm Counters Power Loss Counter and Output Counters Also Checksums can be viewed for Calibra...

Page 66: ... Press the Right arrow pushbutton until the following is displayed SETUP UNIT stat comm SETUP 5 Press ENTER the following will be displayed SOFTWARE VERSION VERS sn access number 6 Press the Right arrow pushbutton until the following is displayed CLEAR ALARM COUNTER logo1 logo2 ALARM 7 Press ENTER the following will be displayed CLEAR ALARM COUNTER PRESS ENTER KEY TO CLEAR 8 Press ENTER the follow...

Page 67: ...quence System Monitor Secondary Metering and Status The Secondary Metering and Status screen Figure 2 10 includes the Source 1 and Source 2 Secondary Voltage Secondary Current and Bus Frequency The Secondary Metering section also displays Bus New Source information that includes Delta Phase Angle Delta Frequency Delta Voltage and the New Source identity Source 1 or Source 2 The Secondary Metering ...

Page 68: ... up and is timing System Monitor Phasor Diagram and Sync Scope CAUTION Do not use the Delta Phase Angle Delta Voltage Delta Frequency or Sync Scope Pointer of the ISScom Sync Scope screen to determine when to manually initiate a transfer There is sufficient delay in the communications between the MBTS and the ISScom such that these indications do not provide live information CAUTION Do not use the...

Page 69: ...sed I J Trip SI Breaker Conumnd Trip S2 Breaker Conumnd J Close Sl Breaker Command Close S2 Breaker Command J J Source I New Source Source 2 New Source J De ice ON Local Mode I ISScom S Conddry M ter g and Status J Input 1 Sl 52a J Output 1 Trip Sl J Input 2 Sl 52b Output 2 Close Sl J Input 3 Sl 52SP J Output 3 Trip S2 J Input 4 S2 52a J Output 4 Close S2 J Input 5 S2 52b J Output 5 J Input 6 S2 5...

Page 70: ...ansfer Event Log is the Start signal for any transfer A Transfer Event Log is considered complete when one of following occurs When the breaker from the Old Source trips and the breaker to the New Source closes When a breaker failure occurs When the incomplete transfer timer times out The trigger and complete events are used to define the time frame during which the transfer event log is storing i...

Page 71: ...ered by a designated control status input usually a MBTS initiate input an automatically initiated signal a trip output a manual transfer signal or from serial communications The Oscillograph Recorder settings are not considered to be part of the Setpoint Profile Recorder settings are common to all profiles See Chapter 3 ISScom subsection System Oscillograph for Oscillograph Recorder Retrieve Trig...

Page 72: ...he Desktop will open the program and display the ISScom Main Screen Figure 3 5 Figure 3 1 ISScom Program Icon Shortcut Command Buttons When the ISScom software opens there are also 7 shortcut command buttons for the most common operations performed by ISScom The first three buttons Monitor Setup System and System Setpoints are also found under the System drop down menu Initiate and Reset Buttons T...

Page 73: ...Scope Single Line Diagram Primary Metering Single Line Diagram Secondary Metering Window Cascade Tile Tools System Access Code u Miscellaneous Setup System Outputs Test System Comm Setup System Ethernet Setup System Firmware Update Calibrate Unit System Error codes Counters ISSplot Comm Access User Access Setup Retrive Trigger Clear Switching Method Active Profile Copy Profile File New Ctrl N Open...

Page 74: ...riority If Remote Control is selected then manual transfers can be initiated either remotely or locally This applies to manually initiated transfers The Automatic Transfer can still be initiated by internal undervoltage initiate ISSlogic 86P S1 Initiate 86P S2 Initiate 27 S1 or 27 S2 initiates The Automatic Transfer operates independently from Remote Local control Device ON OFF The Device ON OFF b...

Page 75: ...ialog screen also includes a Bring up terminal window after dialing option When selected ISScom will open a terminal window to allow modem commands to be sent to the target modem When communicating by way of a fiber optic loop network echo cancelling is available by checking the Echo Cancel box This command masks the sender s returned echo If the modem was not used to establish communication direc...

Page 76: ...1 3 A B C 3 5 ISScom 3 Figure 3 9 ISScom Modem Expanded Communication Dialog Screen Figure 3 8 ISScom TCP IP Ethernet Communication Dialog Screen Figure 3 7 ISScom Serial Communication Dialog Screen ...

Page 77: ...3 10 allowing the user to input the pertinent information regarding the system on which the MBTS is applied see Section 4 2 System Setup for detailed information regarding the specific elements of the Setup System dialog screen Q Q Q Q Q NOTE Checking the inputs for the Active Input Open parameter designates the operated state established by an opening rather than a closing external contact COMMAN...

Page 78: ...d Function Setting dialog screens can be accessed Selecting a Transfer Setting or Function Setting button will display the corresponding function dialog screen See Figure 3 12 as an example COMMAND BUTTONS Display All Opens the All Setpoints Table dialog screen for the specified range of functions Configure Opens the Configure dialog screen Exit Exits the screen and returns to the ISScom main scre...

Page 79: ...M 4272 Instruction Book 3 8 Figure 3 11 MBTS Setpoints Dialog Screen Path System Setup system Setpoints ATS command button OR ATS jump hotspot within All Setpoints Table Figure 3 12 Typical Setpoint Dialog Screen ...

Page 80: ...1 3 A B C 3 9 ISScom 3 Path System menu Setup submenu Setpoints screen Display All button Figure 3 13 All Setpoints Table Dialog Screen Partial Xli I i I I I 0 0 0 0 0 0 0 0 I l I ...

Page 81: ...rtial f I i I f i g 1 JJ n U f i 1 f 1 0 c w c 0 0 0 0 w I w I 1 j 0 n 0 z 0 z m I I f I HI I I I H I I I I f I H I I H I I I f I I I I H c 0 0 0 jl I I w lll f I f I f I I I I I I I I I I I I I i I f I f f I I I I I I H 0 0 w I w LJ I r _ _ f f I f I 1 D c C 0 0 W N I I I I ro I n I z I 0 I z I ro c Ie w I 100 I 1 I W I 1 00 I I i z I d ...

Page 82: ...hat this field can t be changed But the Date field can be changed by editing and pressing Save When the LED is not blue the MBTS is not time synchronized and therefore both the Date and Time fields can be changed Path System Setup Set Date Time Figure 3 15 Date Time Dialog Screen SET DATE AND TIME COMMAND BUTTONS Start Stop This toggles between start stop the Clock MBTS clock Stop pauses Start res...

Page 83: ...individual sections for Input Output Status Function Status Oscillograph Trigger Status and System Status information The Voltages portion of the metering screen displays the Phase Voltages for the three voltage inputs to the MBTS It also displays the Bus Positive Sequence VPS and Bus Negative Sequence VNS when three phase voltages are applied S1V S2V and Bus V for the selected single phase will b...

Page 84: ...ations between the MBTS and the ISScom such that these indications do not provide live information Always use the status indicators of the MBTS front panel These indicators use the manual transfer settings to determine when a parameter is OK If manual transfer is disabled a warning message Manual Transfer Blocked will be displayed and no transfer will occur The Function Status window displays the ...

Page 85: ...elta Voltage between the motor bus and the new source the new source is defined as the source to which the bus is being transferred In addition the screen displays the status of Source 1 and Source 2 breakers The CB S1 and CB S2 indicators display RED color when the Source 1 breaker CB S1 or Source 2 breaker is in the closed position The CB S1 and CB S2 indicators display GREEN color when the Sour...

Page 86: ...1 3 A B C 3 15 ISScom 3 Path System Monitor Phasor Diagram Figure 3 18 Phasor Diagram Path System Monitor Sync Scope Figure 3 19 Sync Scope Screen ...

Page 87: ... connected to the rear terminals Figure 4 22 then the Single Line Diagram will not display current values 2 The user may select either the primary or secondary values on the Single Line Diagram Path System Monitor Single Line Diagram Figure 3 20 Single Line Diagram Primary Metering or Secondary Metering Screen ...

Page 88: ... the close command is issued to when the new source s breaker status contact closes Breaker Opening Time Open transition time the time period from when the old source breaker status contact opens to when the new source breaker status contact closes Close transition time in Hot Parallel Transfer only the time period from when the new source breaker status contact closes to when the old source break...

Page 89: ...rom the ISScom Main Screen menu select System Transfer Event Log View ISScom will display the Transfer Event Log Viewer screen Figure 3 22 Figure 3 21 Transfer Event Log Record Download Screen Figure 3 22 Transfer Event Log Viewer 4 Select Open ISScom will Open the target file in the Transfer Event Log Viewer Summary screen Figure 3 23 5 Select Details ISScom will expand the Transfer Event Log Vie...

Page 90: ...1 3 A B C 3 19 ISScom 3 Figure 3 24 Transfer Event Log File Summary and Details Screen Figure 3 23 Transfer Event Log File Summary Screen ...

Page 91: ...OSO r Extefnai 27 51 r Extefnai 27 52 r Intefnai 27 l1 r Intefnai 27 l2 r I5SlOQi r I5SlOQi 1 r I5SlOQi 2 r I5SlOQi 3 r 861 51 r 861 52 r I5SlOQi 5 r I5SlOQi 6 System Status and Transl r Start SIgnal Status SYSTEM 5TATUS f7 I do Fost TrMJSfer D eh f tw e Acge CO f7 I do Fost TrMJSfer D eh V ologe CO f7 I do Fost TrMJSf Deh Freqoor y CO f7 I do Delayed In_ TrMJSf Deh Vohge CO f7 I do Delayed In_ Tr...

Page 92: ...ith the Clear Transfer Event Log Status Cleared confirmation Screen Figure 3 28 Figure 3 28 Transfer Event Log Status Cleared Confirmation Screen 3 Select OK ISScom will return to the ISScom Main Screen Figure 3 5 System Transfer Event Log Clear History The Clear History feature clears all Transfer Event Logs stored on the MBTS To Clear the Transfer Event Log perform the following 1 From the ISSco...

Page 93: ... are available for viewing utilizing the M 3872 ISScom Communications and Oscillographic Analysis Software The Sequence of Events Recorder submenu allows the user to Setup the events that trigger the Sequence of Events Recorder Download events from the MBTS View the parameters captured at the time of the event and Clear the event recorder System Sequence of EventsRecorder Setup The Setup menu item...

Page 94: ...ion 3 Select the destination folder and name the file then select Save to save the Sequence of Events Record or Cancel System Sequence of Events Recorder View The Sequence of Events viewer screen includes the commands Open Close Print Summary and Print Detail Open opens a saved sequence of events file Close closes the print file Print Summary prints an event summary and Print Detail prints the det...

Page 95: ...o the computer See Appendix E Sequence of Events Printout Sample 7 To print the Sequence of Events Detail information select Print Detail ISScom will print both the Summary and Detail information to the default printer connected to the computer See Appendix E Sequence of Events Printout Sample 8 To view the Sequence of Events Pickup Input and Output information select Pickup I Os ISScom will displ...

Page 96: ... from serial communications When untriggered the recorder continuously stores waveform data thereby keeping the most recent data in memory When triggered the recorder stores pre trigger data then continues to store data in memory for a user defined post trigger delay period The records may be analyzed using ISScom and are also available in COMTRADE file format 9 To view the Sequence of Events Drop...

Page 97: ...1 3 A B C M 4272 Instruction Book 3 26 Figure 3 38 Sequence of Events System Status and Transfer Start Signal Status Screen ...

Page 98: ...e Delta Phase Angle Delta frequency Trip Circuit Monitor TCM or Close Circuit Monitor CCM open signal Inputs 1 18 Outputs 1 16 The Oscillograph submenu includes the Setup Retrieve Trigger and Clear selections The Oscillograph recorder settings are not considered to be part of the Setpoint Profile Recorder settings are common to all profiles System Oscillograph Setup The Setup selection displays th...

Page 99: ...load is complete ISScom will display a Oscillograph Record Retrieval complete message System Oscillograph Trigger The Trigger selection allows the user to manually trigger the Oscillograph This can be confirmed by observing the Secondary Metering and Status screen Figure 3 17 To manually Trigger the Oscillograph Recorder perform the following 1 From the ISScom Main Screen menu select System Oscill...

Page 100: ... direction of the next transfer The Profile submenu provides three selections Switching Method Active Profile and Copy Profile System Profile Switching Method Q Q Q Q Q NOTE During Profile Switching relay operation is disabled for approximately 1 second The Profile Switching Method feature Figure 3 47 allows the user to select either Manual or Input contact When the Switching Profile Method is set...

Page 101: ... From System ISScom will read the data from the target MBTS and when complete display a confirmation screen Figure 3 51 Figure 3 51 ISScom Data Reading Successful Confirmation Screen 2 Select OK ISScom will return the ISScom Main Screen Figure 3 5 Figure 3 48 Select Active Profile Dialog Screen System Profile Copy Profile The Copy Profile Figure 3 49 feature copies the active profile to one of fou...

Page 102: ...mber and set the operating mode of the System OK LED See Section 4 1 Unit Setup for detailed setup instructions User Logo Line The user logo is a programmable two line by 24 character string which can be used to identify the MBTS and which is displayed locally during power up after Self Test completion This information is also available in ISScom Tools Menu The Tools menu provides the user with ac...

Page 103: ...rolled by the unit s microprocessor A flashing SYSTEM OK LED indicates proper program cycling The LED can also be programmed to be continuously illuminated Figure 3 54 Miscellaneous Dialog Screen Tools System Outputs Test The System Outputs Test menu selection displays the System Outputs Test screen Figure 3 55 which provides the user with the ability to test each ouput relay See Section 6 Testing...

Page 104: ...Section 4 1 Unit Setup for detailed communication setup instructions Tools System Firmware Update The System Firmware Update selection allows the user to update MBTS firmware version in the field Detailed step by step instructions will be provided by Beckwith Electric regarding Field Firmware Updates Tools Calibrate Unit The Calibrate Unit menu selection provides the user with instructions to reca...

Page 105: ...with Electric MBTSs The ISSplot feature is also capable of plotting and printing waveform data files that are in COMTRADE format When the ISSplot menu item is selected ISSplot is launched in an independent WindowsTM Window The ISSplot Main Screen and menu bar is displayed Figure 3 59 The ISSplot Menu Structure and Submenu Callouts are illustrated in Figure 3 60 ...

Page 106: ...le Select Waveform Select Color Change Scale View Settings Window Cascade Arrange Icons Windows File Path Help Contents About ISSplot Primary Original Waveform RMS Value Fundamental Magnitude 2nd Harmonic Magnitude 3rd Harmonic Magnitude 4th Harmonic Magnitude 5th Harmonic Magnitude Delta Phase Angle Delta Frequency Rate of Change of Bus Frequency Phase Diagram Device Information Zoom In Zoom Out ...

Page 107: ...ation Zoom In Zoom Out View All Toolbar Status Bar View The View menu allows the user to select Toolbar and Status Bar for display ISSplot Settings Menu Settings Select New Source for Delta Angle Select Waveform Select Color Change Scale The Settings menu allows the selection of the new source 1 or 2 for Delta Angle waveforms to be displayed the formatting of display colors and the ability to chan...

Page 108: ...1111 CC cc 170 2 mmm I I im Imm im m mm ImmI i i ImmI i i I I c c m 1 c O OOm 0 00 Cycle I N UT 1 N UT Sm t sS N UT _ T f inti I 11111I Eilliililim C OU U T jOU UTl OU UT3 C g i Ihl I fl v Reody 0312312006 510ft Tme 13 1 1 7 196 TrOOedTme 1 1 57 92 1 MY l 13 1 1 57 7 MYU 13 1 1 57 7 _ ISSpiot M4212 C Documents and Selllngs1AAoshon Desktop osc1 cfg I I It I 0 s RrIS Itt i I t f Z i V S1 II 00 170 2...

Page 109: ...ction Left Mouse button down and drag or select zoom in icon on toolbar menu Magnify the selected area in main display impedance diagram PQ diagram and phasor diagrams Left mouse double click Move Marker 1 to current position in main display Shift Left mouse double click or left mouse down and right mouse double click Move Marker 2 to current position in main display Align cursor on Marker 1 and d...

Page 110: ... End Zoom In Zoom Out View All Original Waveform RMS Waveform Fundamental Waveform Phase Diagram Delta Phase Angle Delta Frequency Rate of Change of Bus Frequency Figure 3 65 ISSplotTM Toolbar MARKER 1 All alalog traces This view shows peak values RMS values may also be displayed Delta value between Marker 1 and Marker 2 Value at Marker 1 Value at Marker 2 MARKER 2 Control status input and contact...

Page 111: ... menu provides two commands The Contents command initiates a link to a PDF Portable Document File version of this instruction book for easy reference An Adobe Acrobat reader is required to view this document The M 4272 Instruction Book has been Bookmarked By selecting the Navigator pane in Adobe Acrobat Reader the user can directly access selected topics The About ISScom command displays ISScom ve...

Page 112: ...nit transfer settings enabling functions and setpoints output contact assignments and digital input assignments The selection of the MBTS System Setup parameters and Setpoints is performed using the M 3872 ISScom Communications and Oscillographic Analysis Software However some setup information can also be entered from the unit s M 3931 Front Panel Human Machine Interface HMI and will be included ...

Page 113: ...Main Screen The new Communication Access Code will not be in affect until communications have been closed with the MBTS for approximately 2 5 minutes HMI Comm Access Code Setup 1 Press the ENTER pushbutton 2 If Level Access is active the following is displayed ENTER ACCESS CODE 0 a Input the required Access Code then press ENTER b If the proper Access Code has been entered the HMI will return LEVE...

Page 114: ...ettings Each access code is a user defined one to four digit number Access codes can only be altered by a level 3 user If the level 3 access code is set to 9999 the access code feature is disabled When access codes are disabled the access screens are bypassed and all users have full access to all the MBTS menus The device is shipped from the factory with the access code feature disabled ISScom Use...

Page 115: ...evel 2 level 3 7 Press ENTER the following will be displayed LEVEL 1 9999 8 Input the desired User Access Code as follows a Utilizing the Up and Down arrow pushbuttons select the desired first digit b Press the Left arrow pushbutton once then repeat the previous step as necessary to input the desired Access Code c When the desired Access Code has been input then press ENTER The following will be d...

Page 116: ...enu select Tools Miscellaneous Setup ISScom will display the Miscellaneous Setup dialog screen Figure 4 5 Figure 4 5 Miscellaneous Dialog Screen 2 If entering editing the User Logo lines then enter the desired User Logo Lines 3 If changing the User Control Number then enter the desired User Control Number 4 If enabling disabling the System OK LED Flash operation then select either Enable of Disabl...

Page 117: ...llows a Utilizing the Up and Down arrow pushbuttons select the desired first letter symbol digit blank space b Press the RIGHT arrow pushbutton once then repeat the previous step as necessary to input the desired User Logo Line 2 c When the desired User Logo Line 2 has been input then press ENTER The following will be displayed USER LOGO LINE 2 WAIT USER LOGO LINE 2 logo 1 LOGO 2 alrm 12 Press Exi...

Page 118: ... rmte_lcal c Go to step 4 3 If Level Access is not active then the following is displayed INIT TRANSFER INIT rmte_lcal CAUTION Do not enter DIAGNOSTIC MODE when protected equipment is in service Entering DIAGNOSTIC MODE when protected equipment is in service removes all protective functions of the MBTS 4 Press the right arrow pushbutton until the following is displayed SETUP UNIT stat comm SETUP 5...

Page 119: ...information in the clock will be synchronized with IRIG B time information every hour The MBTS can accept a modulated IRIG B signal using the rear panel BNC connector or a demodulated TTL level signal using extra pins on the rear panel COM2 RS 232 interface connector see Figure B 4 for COM2 pinout If the TTL signal is to be used then Jumper 5 will be required to be positioned see Section 5 4 Circu...

Page 120: ...Month b When the desired Month has been selected then press ENTER The following will be displayed DATE TIME 8 Date 10 Input the desired Date as follows a Utilizing the Up and Down arrow pushbuttons select the desired Date first digit b Press the Left arrow pushbutton once then repeat the previous step as necessary to input the desired date c When the desired Date has been input then press ENTER Th...

Page 121: ...et is enabled Serial Port RS 485 COM3 located on the rear terminal block of the M 4272 is an RS 485 2 wire connection Appendix B Figure B 3 illustrates a 2 wire RS 485 network Individual remote addressing also allows for communications through a serial multidrop network Up to 32 MBTSs can be connected using the same 2 wire RS 485 communications line Direct Connection In order for ISScom to communi...

Page 122: ...cated at the top of the display 2 Select the desired COM Port to be setup 1 2 or 3 3 Enter the desired Dead Sync Time 2 to 3000 msec This delay establishes the line idle time to re sync packet communication Dead sync time should be programmed based on the channel s baud rate Baud Rate Dead Sync Time 9600 4 ms 4800 8 ms 2400 16 ms 1200 32 ms Table 4 1 Dead Sync Time 4 Enter the desired Baud Rate 12...

Page 123: ... OUT 4 OUT 3 OUT 2 OUT 1 B E Integrated Synchronizing Systems C T W C K L EC E C H I R T I C IN O M 4272 R MOTOR BUS TRANSFER Made in U S A C N Y S E M I T DIAG 1 M C C CCM 2 2 M C T TCM 1 SOURCE 2 SOURCE 1 BRKR OPEN STATUS OPEN BRKR SYS 8 1O 12 14 18 OPEN OPEN 16 OPEN 7 9 13 15 11 17 OPEN OUTPUTS RESET OK BRKR CLOSED BRKR CLOSED PS 1 PS 2 INPUTS 13 16 15 14 12 11 10 9 COM 1 ENTER EXIT STATUS OUT ...

Page 124: ...te_lcal c Go to step 4 3 If Level Access is not active then the following is displayed INIT TRANSFER INIT rmte_lcal 4 Press the Right arrow pushbutton until the following is displayed Communication stat COMM setup 5 Press ENTER the following will be displayed COM1 SETUP COM1 com2 com3 com_adr 6 Press ENTER and the following is displayed COM1 BAUD RATE baud_4800 BAUD_9600 7 Press the Left or Right ...

Page 125: ...ess DISABLE If the network server does not support the DHCP protocol or the user chooses to manually input ethernet settings then obtain the IP Address Net Mask and Gateway address from the Network Administrator and enter the settings ETHERNET PROTOCOLS The Standard Port Number for the MODBUS over TCP IP protocol is 502 The master device may require the entry of the Standard Port Number ISScom Eth...

Page 126: ... enable 8 Use the Right arrow pushbutton to select ENABLE Upper Case then press ENTER the following will be displayed TCP IP SETTINGS TCP_SETTINGS 9 Press ENTER the following will be displayed DHCP PROTOCOL DISABLE enable 10 If the network does not support the DHCP protocol then go to Manual Configuration of Ethernet Board following page to manually configure the ethernet board 11 If the DHCP Prot...

Page 127: ...MUNICATION stat COMM setup 5 Press ENTER the following will be displayed COM1 SETUP COM1 com2 com3 com_adr 6 Use the Right arrow pushbutton to select ETH Upper Case ETHERNET SETUP access ETH eth_ip 7 Press ENTER the following will be displayed ETHERNET DISABLE enable 8 Ensure that ENABLE is selected Upper Case If ENABLE is not selected Upper Case then use the Left arrow pushbutton to select ENABLE...

Page 128: ...book to determine which communications port should be selected 3 Verify that the modem is attached to if external or assigned to if internal the same serial port as assigned in ISScom While ISScom can use any of the 255 serial ports COM1 through COM255 most computers support only COM1 and COM2 4 Connect the modem to a telephone line then energize the modem Initializing the PC Modem 1 Verify that t...

Page 129: ...his profile in the modem s nonvolatile memory After programming the modem will power up in the proper state for communicating with the MBTS Programming may be accomplished by using the Bring Up Terminal Window after dialing selection Figure 4 14 Refer to your modem manual for further information NOTE The MBTS does not issue or understand any modem commands It will not adjust the baud rate and shou...

Page 130: ...ic recorder can be triggered by a designated control status input usually a MBTS initiate input an automatically initiated signal a trip output a manual transfer signal serial communications or manually by the user When untriggered the recorder continuously stores waveform data thereby keeping the most recent data in memory When triggered the recorder stores pre trigger data then continues to stor...

Page 131: ...n be triggered remotely through serial communications using ISScom or automatically using programmed status inputs or outputs 4 Select the Post Trigger Delay A post trigger delay of 5 to 95 must be specified After triggering the recorder will continue to store data for the programmed portion of the total record before re arming for the next record For example a setting of 80 will result in a recor...

Page 132: ...System Setup and Setpoints 4 4 21 Figure 4 16 Setup Oscillograph Recorder Figure 4 17 Oscillograph Setup Sent Confirmation Screen ...

Page 133: ...en not connected to the MBTS the Save selection does not save the Sequence of Event settings to the open file To setup the Sequence of Events Recorder perform the following 1 From the ISScom Main Screen menu select System Sequence of Event Recorder Setup ISScom will display the Sequence of Events Setup screen Figure 4 18 2 Select the desired Inputs and Outputs then select Save ISScom will display ...

Page 134: ...er the Nominal Current The secondary CT current of the phase CTS 4 Select the Phase Rotation ABC or ACB NOTE See Section 4 3 System Diagrams for Typical VT Three Line Connection Diagrams 5 Select the S1 S2 VT Configuration button ISScom displays the S1 S2 VT Configuration selection screen Figure 4 21 The S1 S2 VT Configuration allows the selection of the Source 1 and Source 2 voltage transformer c...

Page 135: ...16 2 C Cles r PMse to GrOOSld Three PMse PMse to GrOOSld Sino JIe PMse A PMse to GrOOSld Sino JIe PMse 5 PMse to GrOOSld Sino JIe PMse C PMsetc ThrMPMse r r r I I Setl4l Sl tom I IN_f r 6iJH r 5IlH CTS_r l Roang r Amp r lAmp N VoI _1 120 5OV J J I U OV I Pha Rototoo N C ont I 5 0 5OA J J l 6 00 A r fili r AC8 r Sl 1S2 VTCmhPotoo Ir 8USVTConI9 ot01 II SlIS2CTConI9 otoo _ Sl S2 VT Corl9 otOO _ 8u VT...

Page 136: ...t Selection screen 12 Select the desired outputs to be Latched then select OK ISScom will return to the Setup System screen NOTE If neither pulsed or latched output is enabled thentheoutputcontactwilldefault to the Normal Mode Normal Mode maintains the output contact energized as long as the condition that caused it to operateexists Aftertheactuatingcondition is cleared the contact will reset afte...

Page 137: ...elect the desired Duplicate Outputs The Duplicate Outputs Selection feature Figure 4 20 allows an additional output to be selected that will operate at the same time as the trip or close commands are issued to their assigned outputs The duplicate output can provide additional trip and close outputs as needed 18 Select the Output Seal In Time for each Output 2 to 8160 Cycles The Output Seal in Time...

Page 138: ...utputs Selection Screen NOTE If neither pulsed or latched output is enabled then the output contact will default to the Normal Mode Normal Mode maintains the output contact energized as long as the condition that caused it to operate exists After the actuating condition is cleared the contact will reset after the programmed seal in time has elapsed ...

Page 139: ...VT Wye Wye Connection VT S2 Three VT Wye Wye Connection VT B Three VT Wye Wye Connection M 4272 STATION BUS SYSTEM 1 CT S1 and CT S2 are single phase CTs They both must be connected to the same phase either Phase A Phase B or Phase C CT S1 Single Phase CT CT S2 Single Phase CT SOURCE 2 S2 83 81 79 M 4272 VA VB VC 78 80 82 89 87 85 M 4272 VA VB VC 84 86 88 95 93 91 VA VB VC 90 92 94 4 3 System Diag...

Page 140: ... S1 and CT S2 are single phase CTs They both must be connected to the same phase either Phase A Phase B or Phase C respectively VT S1 Two VT Open Delta Connection VT S2 Two VT Open Delta Connection VT B Two VT Open Delta Connection CT S1 Single Phase CT CT S2 Single Phase CT SOURCE 1 S1 SOURCE 2 S2 83 81 79 M 4272 VAB VBC VCA 78 80 82 89 87 85 M 4272 VAB VBC VCA 84 86 88 95 93 91 M 4272 VAB VBC VC...

Page 141: ...e phase either Phase A Phase B or Phase C VT S2 One VT Phase Ground Connection 2 VT S1 One VT Phase Ground Connection 2 2 VT B One VT Phase Ground Connection 2 VT S1 VT S2 and VT B are single phase VTs They all must be connected to the same phase either Phase A To Ground Phase B To Ground or Phase C To Ground CT S1 Single Phase CT CT S2 Single Phase CT SOURCE S1 S1 SOURCE 2 S2 83 81 79 M 4272 VA V...

Page 142: ...to the same phase either Phase A Phase B or Phase C VT S2 One VT Phase Phase Connection 2 VT S1 One VT Phase Phase Connection 2 2 VT B One VT Phase Phase Connection 2 VT S1 VT S2 and VT B are single phase VTs They all must be connected to the same phase either Phase A To Phase B Phase B To Phase C or Phase A To Phase C CT S1 Single Phase CT CT S2 Single Phase CT SOURCE 2 S2 83 81 79 M 4272 VAB VBC...

Page 143: ...phase CTs They both must be connected to the same phase either Phase A Phase B or Phase C VT S2 One VT Phase Ground Connection 2 VT S1 One VT Phase Ground Connection 2 2 VT S1 and VT S2 are single phase VTs They both must be connected to the same phase either Phase A To Ground Phase B To Ground or Phase C To Ground VT B Three VT Wye Wye Connection CT S1 Single Phase CT CT S2 Single Phase CT 83 81 ...

Page 144: ...ase CTs They both must be connected to the same phase either Phase A Phase B or Phase C VT S2 One VT Phase Phase Connection 2 VT S1 One VT Phase Phase Connection 2 2 VT S1 and VT S2 are single phase VTs They both must be connected to the same phase either Phase A To Phase B Phase B To Phase C or Phase A To Phase C VT B Two VT Open Delta Connection CT S1 Single Phase CT CT M2 Single Phase CT 95 93 ...

Page 145: ...d HMI The System Setpoints dialog screen contains two setting groups the Transfer Settings and the Function Settings The Transfer Settings group contains the settings that are necessary for transferring the motor bus load quickly and safely from one power source to another power source The Function Settings group contains settings that can initiate the transfer or are used as logic inputs to the t...

Page 146: ...em Setup Setpoints Common Settings The Common Settings selection from the Transfer Settings group Figure 4 33 opens the Common Function Settings Dialog screen Figure 4 34 which includes the Common Function Settings Inputs and Outputs tabs Figure 4 33 System Setpoints Dialog Screen ...

Page 147: ...ately enabled to supervise closure of the new source breaker without waiting for the breaker status contact confirmation that the old source breaker has opened At the same instant the commands for the old source breaker and the new source breaker to trip and close are sent simultaneously if and only if the phase angle between the motor bus and the new source is within the delta phase angle limit f...

Page 148: ...he breaker closing time is to have the breaker actually close just at the time of the phase coinsidence setting is in cycles so time changes based on frequency The Adaptation feature when selected calculates the S1 and S2 breaker closing times based on the average time of the Last 8 breaker operations When initially selected the selected breaker closing time will be used until eight breaker operat...

Page 149: ...n frequency or fluctuating voltage amplitudes The Remote Manual Initiate Time Setting establishes the time delay before a remotely initiated Manual Transfer actuates The Remote Manual Transfer can be initiated in Remote mode of operation The purpose of this time delay is to allow personnel initiating the transfer to move away from the front of the switchgear that would be operating during the tran...

Page 150: ...ne of the three choices presented must be selected the 52a or 52b or both 52a and 52b Only one choice for each breaker can be selected The selection must match the physical connections to the unit for proper operation The 52a and 52b breaker status input contacts need to be breaker auxiliary contacts that change state whenever the breaker closes opens and when the breaker is in test or fully racke...

Page 151: ...s Once an input has been selected it will be grayed out on the other dialog screens since it has already been assigned Common Settings External Status Reset This feature allows the user to select the external input to be used to reset the system status and any selected latched outputs When the External Status Reset button is selected the External Status Reset Input Selection dialog screen is displ...

Page 152: ...e 4 38 allows the user to select one or more outputs Figure 4 40 to indicate when the Manual Fast Transfer Hot Parallel Ready Outputs are ready The conditions that are necessary for a Manual Fast Transfer Hot Parallel to be ready to execute are as follows No Lockout Blocking conditions exist The Phase Angle between the Motor Bus and the New Source is within limit setting The Delta Voltage between ...

Page 153: ...1 Inc e T i Ie OLlptls I Sove Man f asl tiot Paralel h R1Jaa o OUTPUT 9 o OUTPUT 10 o OUTPUT 11 o OUTPUT 12 o OUTPUT 5 0 OUTPUT 13 o OUTPUT 6 0 OUTPUT H o OUTPUT 7 0 OUTPUT 15 o OUTPUT 16 1 l1 C I ommon Function 5 ttlng CorJYf01 Fcootoo Se tOF I levis OLlpU OUTPUTS I AljiiE ifTiOijirOiFe Q i r Ae Ae OLlpUs 2 1 Atlo FMt T iSfe Re o OUTPUT S o OUTPUT 10 o OUTPUT 11 o OUTPUT 12 o OUTPUT 5 0 OUTPUT 13...

Page 154: ...o an external operation that closes the second breaker while leaving the first one closed and if the auto trip feature is disabled no transfer sequence is initiated Transfer in Process Blocking When a transfer is in process any other transfer initiate inputs will be ignored until the original transfer is complete Blocking After Transfer After a transfer has been completed any additional transfers ...

Page 155: ...tion Dialog Screen Figure 4 43 Fast Transfer Load Shedding Output Selection Dialog Screen For the F27B 3 F81 1 or F81R 1 functions when the settings are satisfied the selected load shedding output is closed For Residual Voltage Transfer the Load Shedding Output is closed when the motor bus voltage drops below the Residual Voltage Limit The close command for Residual Voltage Transfer is sent after ...

Page 156: ...etpoints 4 4 45 Figure 4 44 Delayed In Phase Transfer Load Shedding Output Selection Dialog Screen Figure 4 46 Load Shedding Output Selection Dialog Screen Figure 4 45 Incomplete Transfer Outputs Selection Dialog Screen ...

Page 157: ...T rmte_lcal c Go to Step 4 3 If Level Access is not active then the following is displayed INIT TRANSFER INIT rmte_lcal 4 Press the Right arrow pushbutton until the following is displayed AUTO TRANSFER AUTO_XFER man_xfer 5 Press ENTER the following will be displayed AUTO TRANSFER disable enable 6 Press the Left or Right arrow pushbutton as necessary to enable or disable Auto Tranfer upper case 7 P...

Page 158: ...od used will depend on how the motor bus voltage decays when the power source is disconnected For example assume the Source 1 breaker is closed and the Source 2 breaker is open An operator accidentally opens the Source 1 breaker The MBTS will close the Source 2 breaker based on the Automatic Transfer settings The Auto Close selection operates to transfer in either direction The purpose is to permi...

Page 159: ... in the wrong positions for this transfer and the transfer is ignored Since Automatic Transfers can occur in either direction a separate Transfer Initiate Input is needed When an input has been selected it will be grayed out in other dialog screens that provide input selection since it has already been assigned Automatic Transfer Settings Setup Tab Save Cancel The Save selection Figure 4 47 saves ...

Page 160: ... user to disable the individual types of transfers if desired Automatic Fast Transfer Delta Phase Angle Limit The Delta Phase Angle Limit Figure 4 49 can be set from 0 0 to 90 0 degrees The Delta Phase Angle is the angle between the voltages of the motor bus and the new source This setting cannot be disabled the phase angle is always one of the parameters used to determine if a fast transfer can b...

Page 161: ...g command to accomplilsh the break before make mode of operation open transition Automatic Fast Transfer Blocking Inputs Selection The Blocking Inputs Selection button Figure 4 49 opens the Blocking Inputs Selection dialog screen Figure 4 50 Any Input or the Fuse Loss FL function can be selected to block a Fast Transfer When other functions such as External Status Reset are selected for these inpu...

Page 162: ... Automatic Delayed In Phase Transfer Delta Voltage Limit The Delta Voltage Limit can be set from 0 to120 volts The Delta Voltage is the voltage difference between the motor bus and the new source This setting can be disabled If it is disabled then this parameter is not used as a condition to execute a Delayed In Phase Transfer Automatic Delayed In Phase Transfer Delta Frequency Limit The Delta Fre...

Page 163: ...tage between the motor bus and the new source is within limit setting The Delta Frequency between the motor bus and the new source is within limit setting The Phase Angle between the motor bus and the new source is changing and must enter the first phase coincidence first zero degree crossing within the Delayed In Phase Transfer time window adjustable from 10 to 600 cycles The Delayed In Phase Tra...

Page 164: ...ng Inputs Selection button opens the Blocking Inputs Selection dialog screen Figure 4 50 Any Input or the Fuse Loss FL function can be selected to block a Delayed Residual Voltage Transfer When and input is selected it is not grayed out in the other types of transfers Automatic Residual Voltage Transfer Save Cancel The Save selection saves the Automatic Residual Voltage Transfer Tab settings eithe...

Page 165: ...from 2 to 100 cycles The Load Shedding Time Delay defines the time period from when the Fixed Time Transfer Time Delay times out and when the close command is sent to the new source breaker Automatic Fixed Time Transfer Blocking Inputs Selection TheBlockingInputsSelectionbuttonopenstheBlocking Inputs Selection dialog screen Figure 4 50 Any Input or the Fuse Loss FL function can be selected to bloc...

Page 166: ...ess ENTER The following will be displayed MANUAL TRANSFER auto_xfer MAN_XFER 8 The MBTS is now in the selected Manual Transfer Mode Press EXIT as necessary to return to the Main Menu MANUAL TRANSFER SETTINGS SETUP TAB Path System Setup Setpoints Manual Transfer Settings Setup Figure 4 54 illustrates the MBTS Manual Transfer Settings found under the Setup Tab on the Manual Transfer Settings dialog ...

Page 167: ...M 4272 Instruction Book 4 56 Figure 4 54 Manual Transfer Settings Dialog Screen Figure 4 56 Manual Transfer Initiate Input Settings Dialog Screen Figure 4 55 Manual Block Input Settings Dialog Screen ...

Page 168: ...Angle Limit The Delta Phase Angle Limit can be set from 0 0 to 90 0 degrees The Delta Phase Angle is the angle between the voltages of the motor bus and the new source This setting cannot be disabled the phase angle is always one of the parameters used to determine if a fast transfer can be executed Manual Fast Transfer Delta Voltage Limit The Delta Voltage Limit can be set from 0 to 60 volts The ...

Page 169: ... 7 86P S I Inli te SI to 52 o llIFUT B M nJaI Transfer Inli te o IfIPUT 9 T sfe eIockl D ltRlT ID o IfIPUT I I o llIFUT 12 o It PIJT 13 o It PIJT o lilPUT IS o It PIJT 16 o It PIJT 17 o It PIJT IB D R I 9000 W I lOMe w Manual Fast Transfer DeI fl 1 I itrnt T Window 00 0 CGmrnond T Delay 0 1 J r nable I I2H J r Enable 10 Cf J G C de J 8Iotk 0 Inputs Selettlon BLOCKING INPUTS o l IPUT 7 861 51 WWe S...

Page 170: ...3 to coordinate the closing of the first phase coincidence Programmable breaker closing time is from 0 to 12 cycles The Conditions that are necessary to execute a Manual Fast Transfer are No Lockout Blocking conditions exist The phase angle between the motor bus and the new source is within limit setting The Delta Voltage between the motor bus and the new source is within limit setting The Delta F...

Page 171: ...M 4272 Instruction Book 4 60 Figure 4 60 Delayed In Phase Transfer Blocking Inputs Selection Dialog Screen Figure 4 59 Manual Transfer Settings Delayed In Phase Transfer Tab Dialog Screen ...

Page 172: ...g Time Delay times out the close command is sent to the new source breaker This setting cannot be disabled it is always the parameter used as the condition to execute a Residual Voltage Transfer There is no Time Window for the Residual Voltage Transfer However it must be completed by the Incomplete Transfer Lockout Time Limit setting Manual Residual Voltage Transfer Load Shedding Time Delay The Lo...

Page 173: ...M 4272 Instruction Book 4 62 Figure 4 62 Residual Voltage Transfer Blocking Inputs Selection Dialog Screen Figure 4 61 Manual Transfer Settings Residual Voltage Transfer Tab Dialog Screen ...

Page 174: ...imit The Delta Frequency Limit can be set from 0 02 to 0 5 hertz The delta frequency is the frequency difference between the motor bus and the new source This setting can be disabled and if it is disabled then this parameter is not used as a condition to execute a Hot Parallel Transfer Manual Hot Parallel Transfer Time Window The Time Window can be set from 1 to 50 cycles The Time Window defines t...

Page 175: ...M 4272 Instruction Book 4 64 Figure 4 64 Hot Parallel Blocking Inputs Selection Dialog Screen Figure 4 63 Manual Transfer Settings Hot Parallel Transfer Tab Dialog Screen ...

Page 176: ...he tie breaker then the other unit would now see both of its breakers closed Depending on the breaker selected in the Auto Trip feature this unit would trip either its main breaker and both motor buses would be disconnected or it would trip its tie breaker that was just closed disconnecting the motor bus of the unit that originally transferred Neither of these situations is desirable Auto Trip Ena...

Page 177: ...RCE 1 N C 52 M2 VT M2 NORMAL SOURCE 2 BUS 1 BUS 2 VT B2 52T N O BUS TIE VT M1 CT M1 CT M2 CT B1 CT B2 TRANSFORMER NORMAL SOURCE 1 NORMAL SOURCE 2 TRANSFORMER M 4272 M 4272 M M M M Figure 4 66 Main Tie Main Application Example Figure 4 65 Automatic Trip Settings Dialog Screen ...

Page 178: ... on the motor bus However it can be programmed to operate any available output Voltage Inhibit When enabled the Voltage Inhibit 5 to 120 Volts is used to block the 27B Function when the motor bus voltage is below this setting Voltage Inhibit is needed when the MBTS is initially energized or when the bus phase voltage is temporarily not applied to the unit The Voltage Inhibit Function may be disabl...

Page 179: ...struction Book 4 68 Figure 4 68 27B 1 Bus Phase Undervoltage Transfer Initiate Inputs Outputs Selection Dialog Screen Figure 4 67 Function Settings Bus Phase Undervoltage Transfer Initiate S1 to S2 Dialog Screen ...

Page 180: ...4 69 Source 1 Instantaneous Phase Overload Detection Dialog Screen Figure 4 70 Source 1 Instantaneous Phase Overload Detection I O Selection Dialog Screen pickup for normal load current conditions Ranges and Increments are presented in Figure 4 70 Since this is only a single phase element the 50S1 Function can only be used for overload detection and not used for overcurrent protection The current ...

Page 181: ...1 Source 2 Instantaneous Phase Overload Detection Dialog Screen Figure 4 72 Source 2 Instantaneous Phase Overload Detection I O Selection Dialog Screen pickup for normal load current conditions Ranges and Increments are presented in Figure 4 71 Since this is only a single phase element the 50S2 Function can only be used for overload detection and not used for overcurrent protection The current IR ...

Page 182: ...lose command will not be sent since the breaker status would indicate that the tripped breaker did not open Since the transfer could not be completed the Incomplete Transfer Lockout timer would time out and generate a lockout condition Time Delay The time period 1 to 30 cycles after the Pickup Current setting is exceeded at which point the Breaker Failure Alarm is actuated I O Selection The I O Se...

Page 183: ... InlWe 51 to 52 o I T 8 M 3o JaI Tr f InlWe o I T 9 Tr f Eb k1 o I T 10 o OOTPUT 9 o OOTPUT 10 o OOTPUT 11 o OOTPUT 12 o OOTPUT 13 o OOTPUT 1 1 o OOTPUT 15 o OOTPUT 16 o I T 11 o I T 12 o I T 13 o I T 1 1 o I T 15 o I T 16 o I T 17 o I T 18 I Outputs Inputs OU TPUTS o OOTPUT 9 o OOTPUT 10 o OOTPUT 11 o OOTPUT 12 I B B o OOTPUT 7 0 OOTPUT 15 o OOTPUT 16 BL OC KING I NPUTS o I 1 5152 0 I 11 o I T 2 ...

Page 184: ... will be tripped This prevents the New Source from continuing to be connected through the failed breaker to the old source that may be faulted If the Sequential Transfer mode is selected Common Function Settings Figure 4 34 then a close command will not be sent since the breaker status would indicate that the tripped breaker did not open Since the transfer could not be completed the Incomplete Tra...

Page 185: ...M 4272 Instruction Book 4 74 Figure 4 77 S1 BF Source 1 Breaker Failure Breaker Status Dialog Screen Figure 4 78 S1 BF Source 1 Breaker Failure Breaker Status I O Selection Dialog Screen ...

Page 186: ...o the Three Phase voltage of the connected source VT s in Three Phase connection or the Single Phase voltage of the motor bus to the Single Phase voltages of the connected source VT s in single phase connection Phase A to Phase A Phase B to Phase B Phase C to Phase C Time Delay A Time Delay can be applied to delay the 60FL Bus VT Fuse Loss function output Bus VT Fuse Loss Condition When the differ...

Page 187: ...M 4272 Instruction Book 4 76 Figure 4 81 60FL Bus VT Fuse Loss Function Inputs Outputs Selection Dialog Screen Figure 4 80 60FL Bus VT Fuse Loss Dialog Screen ...

Page 188: ...ay setting then an 81 1 or 81 2 will be indicated and an output can be activated The 81 1 function can be used for load shedding Common Setting Outputs Load Shedding The 81 Function is automatically disabled when the bus phase voltage input is less than 5 to 15 V Positive Sequence based on the frequency or less than 5 V Single Phase Time Delay A Time Delay 5 to 65500 cycles can be applied to delay...

Page 189: ...M 4272 Instruction Book 4 78 Figure 4 82 81 1 2 Bus Voltage Frequency Function Dialog Screen Figure 4 83 81 1 2 Bus Voltage Frequency Function Inputs Outputs Selection Dialog Screen ...

Page 190: ...es the 81R 1 2 ROCOF Bus Voltage Function Dialog Screen settings either to an open file or to the target MBTS Cancel returns the user to the previous open screen 81R Rate Of Change Of Frequency BUS VOLTAGE Path System Setup Setpoints 81R Figure 4 84 displays the settings for the 81R 1 ROCOF Bus Voltage function The settings for the 81R 2 ROCOF Bus Voltage are the same as the 81R 1 NOTE Bus VT conf...

Page 191: ...M 4272 Instruction Book 4 80 Figure 4 84 81R 1 2 ROCOF Bus Voltage Function Dialog Screen Figure 4 85 81R 1 2 ROCOF Bus Voltage Inputs Outputs Selection Dialog Screen ...

Page 192: ...ction are shown in Figures 4 86 4 87 and Figure 5 4 The default Close Circuit Monitor input voltage is 250 V dc See Section 5 4 Circuit Board Switches and Jumpers Table 5 4 for CCM 1 Table 5 6 for CCM 2 for other available close circuit input voltage selections Beckwith Electric Co Inc recommends that the M 4272 CCM circuit be connected directly to the close coil bypassing the anti pump Y relay po...

Page 193: ...itoring Input Output Contact Station Battery Other Contacts 52b LS LCS Y 52 Close Coil Y Y LS Legend Anti pump relay prevents reclosing on a sustained close command A spring charge limit switch shown with breaker closing spring discharged Latch check switch closed when latch is reset Y Y LS LCS Figure 4 86 Recommended Close Circuit Monitoring Input Configuration Save Cancel The Save selection save...

Page 194: ... LS LCS Y 52 Close Coil Y Y LS Legend Anti pump relay prevents reclosing on a sustained close command A spring charge limit switch shown with breaker closing spring discharged Latch check switch closed when latch is reset Y Y LS LCS Figure 4 87 Close Circuit Monitoring Input Configuration With Anti pump Relay Not Bypassed ...

Page 195: ...M 4272 Instruction Book 4 84 Figure 4 89 CCM Close Circuit Monitor Inputs Outputs Selection Dialog Screen Figure 4 88 CCM Close Circuit Monitor Function Dialog Screen ...

Page 196: ...ted in the trip coil circuit for the duration of the Time Delay TCM TRIP CIRCUIT MONITOR Path System Setup Setpoints TCM Figure 4 91 displays the settings for the TCM Trip Circuit Monitor function The settings for the TCM 2 Trip Circuit Monitor are the same as the TCM 1 Enable Disable The top right corner of the display includes a command button that will disable or enable the function This select...

Page 197: ...in order for the M 4272 to block all transfers If the M 4272 is not connected to the trip coil circuit there is no affect on transfer operation Time Delay A Time Delay can be applied to delay the TCM Trip Circuit Monitor function output Dropout Time Delay A Time Delay can be applied to delay the reset of the TCM Trip Circuit Monitor function output I O Selection The I O Selection button opens the ...

Page 198: ...System Setup and Setpoints 4 4 87 Figure 4 92 TCM Trip Circuit Monitor Inputs Outputs Selection Dialog Screen ...

Page 199: ...ent from the ISSL 2 3 4 5 and 6 ISSLogic Settings and Logic Functions ISSlogic includes six Initiating Input sources Initiating Outputs Initiating Function Time Out Initiating Function Pickup including the ISSLogic Functions themselves Initiating Inputs Initiating System Status Initiation using the Communication Point The only limitation is that an ISSLogic Function may not be used to initiate its...

Page 200: ...System Setup and Setpoints 4 4 89 Figure 4 93 ISSLogic Function Dialog Screen ...

Page 201: ...d Initiating Outputs then select OK b Select the desired Initiating Output Logic Function AND OR 6 If desired select the Initiating Function Timeout button ISSLogic will display the Initiating Function Timeout Selection screen Figure 4 95 7 Select the desired Initiating Function Timeout then select OK 8 If desired select the Initiating Function Pickup button ISSLogic will display the Initiating Fu...

Page 202: ...rm r S1 S2 Breoke C s Trne OLI 01 ROf19 r S2 Breoke F e r S2 Breoke 52 52b Po oo Disi Jf_ r S2 Breoke Opened r S2 Breoke C sed r Trip S2 Breoke ComrrJOI Id r C se S2 Breoke ComrrJOI Id r Souce 2 N ew Souce r Remote mode OK I I ng Syslem Siotus r ALlo F I Tr s1er Doh Pha e l rge OK r fA F IIHot P Tr s1er Deh Pha e l rge OK r ALlo F I T mlor DehVCJhge OK r fA F IIHot P Tr s1e DehVol_ OK r ALlo F t T...

Page 203: ... Inputs Logic Function AND OR 17 If desired select Blocking Inputs button ISSLogic will display the Blocking Inputs Selection screen Figure 4 99 18 Select the desired Blocking Input s then select OK 19 If desired select Block System Status button ISSLogic will display the Block System Status Selection screen Figure 4 100 20 Select the desired Block System Status s then select OK 21 Select the desi...

Page 204: ... will be active and proceed as follows a If Profile Switching will not be activated then select Not Activated b If Profile Switching will be activated then select the desire profile 27 Select the desired Outputs 28 Determine if a transfer or transfer block will be initiated and proceed as follows a If a transfer or transfer block will not be initiated then select No Transfer Initiate b If a transf...

Page 205: ...ide up to 24 different logic schemes DO RST Dropout Reset Timer Feature The DO RST timer can be set as either Dropout or Reset mode The operation of the Dropout Delay Timer and the Reset Delay Timer are described below Dropout Delay Timer The Dropout Delay Timer logic is presented in Figure 4 101 The Dropout Delay Timer feature allows the user to affect an output time delay that starts when the IS...

Page 206: ...n s Incl ISSLogic and System Status Initiating Outputs Selectable And Or Outputs Initiate Via Communication Point Programmed Time Delay Programmed Outputs 5 16 Log in Sequence of Events 0 65 500 cycles 1091sec at 60Hz Log Pickup in Sequence of Events ISSLogic N Activated This section of ISSLogic initiates the Function Operation This section of ISSLogic is used to Block the Function Operation This ...

Page 207: ...M 4272 Instruction Book 4 96 This Page Left Intentionally Blank ...

Page 208: ... Blocking Inputs Selection 4 65 Trip Breaker Trip Option 4 65 Trip Enable Disable 4 65 Trip Tripping Command Time Delay 4 65 Automatic Delayed In Phase Transfer Save Cancel 4 52 Transfer Blocking Inputs Selection 4 52 Transfer Delta Frequency Limit 4 51 Voltage Limit 4 51 Transfer Time Window 4 51 Fast Transfer Save Cancel 4 50 Transfer Blocking Inputs Selection 4 50 Transfer Closing Command Time ...

Page 209: ...ngs Inputs 4 39 Settings Manual Fast Transfer Hot Parallel Ready Outputs 4 41 Settings 4 35 Outputs 4 41 Auto Fast Transfer Ready Outputs 4 41 Blocking After Transfer Time 4 38 Breaker Closing Time 4 37 Status Inputs 4 39 Delayed In Phase Transfer Load Shedding Outputs 4 43 External Control Inputs Configuration 4 40 Status Reset 4 40 Fast Transfer Load Shedding Outputs 4 43 Incomplete Transfer Loc...

Page 210: ...53 4 54 4 57 4 59 4 73 SP 2 SP 5 SP 10 Form c SP 2 SP 13 Front Panel Controls and Indicators 1 1 2 1 2 2 Status LED Test 6 7 Function Settings 1 1 4 34 4 36 4 38 4 42 4 44 4 67 4 69 4 71 4 73 SP 8 G General Unit Setup 4 1 Grounding Requirements 5 4 H Hardware Requirements 5 17 HMI Auto Transfer Mode Enable Disable 4 46 COM Port Definitions and Device Address 4 13 Comm Access Code Setup 4 2 Etherne...

Page 211: ...ysis Software 3 17 M 3931 Human Machine Interface HMI Module SP 2 SP 15 M 3972 Status Module SP 2 SP 15 Manual Delayed In Phase Transfer Blocking Inputs Selection 4 59 Delta Frequency Limit 4 59 Delta Voltage Limit 4 59 Save Cancel 4 59 Time Window 4 59 Fast Transfer Save Cancel 4 57 Blocking Inputs Selection 4 57 Closing Command Time Delay 4 57 Delta Frequency Limit 4 57 Delta Phase Angle Limit 4...

Page 212: ...10 2 2 2 5 2 6 4 36 4 37 4 44 4 46 4 52 4 55 4 61 4 62 SP 2 SP 6 RMS 3 39 SP 13 S S1 BF Source 1 Breaker Failure Breaker Status 4 71 4 72 S2 BF Source 2 Breaker Failure Breaker Status 4 73 Scaling 3 39 Screen Blanking 2 1 2 2 Self Test Error Codes C 1 Sequence of Events Recorder Setup 4 22 Sequential Transfer Mode 2 2 2 5 4 37 4 69 4 71 SP 3 SP 20 Serial Port RS 485 4 10 RS 232 4 10 Service Condit...

Page 213: ...cuit Monitor 4 67 4 81 4 82 Testing Overview 6 2 Time of Trip 3 17 3 39 Tools 3 31 Calibrate Unit 3 33 Miscellaneous Setup 3 31 4 5 System Access Codes 3 31 Comm Access 3 31 User Access 3 31 Firmware Update 3 33 Outputs Test 3 32 Torque Requirements 5 4 6 3 6 7 6 14 Transfer Event Log 1 2 2 1 2 2 2 12 2 15 3 6 3 17 3 19 3 21 4 1 B 1 SP 12 Methods 1 8 2 2 2 5 2 6 4 37 SP 3 Modes 1 2 2 2 2 5 SP 3 Se...

Page 214: ...Declaration of Conformity Appendix I I 1 IAppendix I Declaration of Conformity ...

Page 215: ...M 4272 Instruction Book I 2 This Page Left Intentionally Blank ...

Page 216: ... furnished under this contract In no event shall the Seller be liable for special incidental exemplary or consequential damages including but not limited to loss of profits or revenue loss of use of the equipment or any associated equipment cost of capital cost of purchased power cost of substitute equipment facilities or services downtime costs or claims or damages of customers or employees of th...

Page 217: ...TH ELECTRIC CO INC 6190 118th Avenue North Largo Florida 33773 3724 U S A PHONE 727 544 2326 FAX 727 546 0121 E MAIL marketing beckwithelectric com WEB PAGE www beckwithelectric com 2005 Beckwith Electric Co Printed in USA 800 4272 IB 04 07 08 ...

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