SMCS Code: 4490
Protective Relaying Programming
OP5-1 is the option for the programming of the protective relaying setpoints. When one or more of the protective relay functions occur, the protective relaying setpoints determine the response of the GSC+P. The GSC+P provides the protective relaying function in order to reduce the possibility of damage to the generator. The protective relaying functions are used in order to reduce the possibility of damage to the customer equipment. The setpoints are programmed in the GSC+P at the factory to the default values. The setpoints may be changed in order to satisfy the requirements of the customer. The setpoints are from P101 to P142 and the setpoints are programmable. Each of the setpoints is described in Table 7.
Procedure For Protective Relaying
Programming
Note: Service Mode cannot be accessed when the
Engine Control Switch (ECS) is in the AUTO position.
Note: An active shutdown fault is indicated by a
FLASHING shutdown indicator . An active shutdown fault must be made inactive in order to access service mode. To temporarily change a shutdown fault from an active shutdown fault to an inactive shutdown fault, the shutdown fault must no longer be occurring. The fault must be corrected. The ECS must be returned to the OFF/RESET position. If the jumper from terminal 6 to terminal 9 is not installed on the ECS, the GSC+P does not power up in OFF/RESET and any active shutdown fault must be corrected before entering service mode.
1. Turn the ECS to the STOP position in order to shut
down the engine. Enter service mode and enter the password. “OP 4” is showing on the lower display. For more information, refer to System Operation, “Password Entry OP3”.
2. Press “SCROLL UP” key two times. “OP5-1” is
showing on the lower display.
3. Press “SELECT” key once. “P101” is showing.
“P101” is followed by the value of the setpoint.
4. Press the “SCROLL UP” key or the “SCROLL
DOWN” key. The next setpoint is showing with the setpoint value. Repeat this step until the desired setpoint is showing.
5. Press “SELECT” key. The value of the setpoint
is flashing.
6. Press the “SCROLL UP” or the “SCROLL DOWN”
key in order to adjust the value of the setpoint.
Note: In order to rapidly scroll through a large range
of values, press and hold the appropriate “SCROLL” key.
7. Press “ENTER” key. The value of the setpoint
stops flashing. Repeat steps 4 , 5, 6 and 7 until all the desired setpoints are adjusted.
8. Press “EXIT” key. “OP 1” is showing on the lower
display.
9. Press “EXIT” key. The display returns to normal
mode.
Table 7
OP5-1 Setpoints(1)- Protective Relaying Programming
Setpoint Name Description Range Of Value Factory Default
P101 Overvoltage Alarm
Enable The GSC+P enables or disables thegenerator overvoltage alarm function. 0 - disabled1 - enabled 1 P102 Overvoltage Alarm
Threshold Voltage the GSC+P uses to issue anovervoltage alarm. 100 to 125% of nameplatevoltage in increments of 1% 105% P103 Overvoltage Alarm
Time Delay Amount of time the GSC+P waitsbefore issuing an overvoltage alarm.
0 to 120 seconds(2)in increments
of 1 seconds10 P104 Overvoltage
Shutdown Enabled The GSC+P enables or disablesthe generator overvoltage shutdown function.
0 - disabled
1 - enabled 1 P105 Overvoltage
Shutdown Threshold Voltage the GSC+P uses to issue anovervoltage shutdown. 100 to 125% of nameplatevoltage in increments of 1% 110% P106 Overvoltage
Shutdown Time Delay Amount of time the GSC+P waitsbefore inssuing an overvoltage shutdown.
0 to 120 seconds(2)in increments
of 1 seconds10 P107 Undervoltage Alarm
Enable The GSC+P enables or disables thegenerator undervoltage alarm function. 0 - disabled1 - enabled 1 P108 Undervoltage Alarm
Threshold Voltage the GSC+P uses to issue anundervoltage alarm. 60 to 100% of nameplate voltagein increments of 1% 90%
(Table 7, contd)
OP5-1 Setpoints(1)- Protective Relaying Programming
Setpoint Name Description Range Of Value Factory Default
P109 Undervoltage Alarm
Time Delay Amount of time the GSC+P waitsbefore inssuing an undervoltage alarm. 0 to 120 seconds
(2)in increments
of 1 seconds10 P110 Undervoltage
Shutdown Enable The GSC+P enables or disables thegenerator undervoltageshutdown function.
0 - disabled
1 - enabled 1 P111 Undervoltage
Shutdown Threshold Voltage the GSC+P uses to issue anundervoltage shutdown. 60 to 100% of nameplate voltagein increments of 1% 85% P112 Undervoltage
Shutdown Time Delay Amount of time the GSC+P waitsbefore issuing an undervoltage shutdown.
0 to 120 seconds(2)in increments
of 1 seconds15 P113 Overfrequency Alarm
Enable The GSC+P enables or disablesthe generator overfrequency alarm function.
0 - disabled
1 - enabled 1 P114 Overfrequency Alarm
Threshold Frequency that the GSC+P uses toissue an overfrequency alarm. 50 to 60, for 50 Hz Gen60 to 70 , for 60 Hz Gen 400 to 480, for 400 Hz Gen
53 Hz 63 Hz 422 Hz P115 Overfrequency Alarm
Time Delay Amount of time the GSC+P waitsbefore issuing an overfrequency alarm. 0 to 120 seconds
(2)in increments
of 1 seconds10 P116 Overfrequency
Shutdown Enable The GSC+P enables or disables thegenerator overfrequency shutdown function.
0 - disabled
1 - enabled 1 50 to 60, for 50 Hz Gen 55Hz PEEC and EUI Engines: 60 to
70, for 60Hz Gen 66 Hz MUI Engines: 60 to 70, for 60 Hz
Gen 63 Hz PEEC and EUI Engines: 400 to
480, for 400 Hz Gen 440 Hz P117 Overfrequency
Shutdown Threshold Frequency the GSC+P uses to issuean overfrequency shutdown.
MUI Engines: 400 to 480, for 400 Hz Gen
422 Hz P118 Overfrequency
Shutdown Time Delay Amount of time the GSC+P waitsbefore issuing an overfrequency shutdown.
0 to 120 seconds(2)in increments
of 1 seconds10 P119 Underfrequency Alarm
Enable The GSC+P enables or disablesthe generator underfrequency alarm function.
0 - disabled
1 - enabled 1
(Table 7, contd)
OP5-1 Setpoints(1)- Protective Relaying Programming
Setpoint Name Description Range Of Value Factory Default
MUI Engines: 30 to 50, for 50 Hz
Gen 45 Hz PEEC and EUI Engines: 30 to
50, for 50 Hz Gen 47 Hz MUI Engines: 36 to 60, for 60 Hz
Gen 54 Hz PEEC and EUI Engines: 36 to
60, for 60 Hz Gen 57 Hz MUI Engines: 240 to 400, for 400
Hz Gen 360 Hz P120 Underfrequency Alarm
Threshold Frequency the GSC+P uses to issuean underfrequency alarm.
PEEC and EUI Engines: 240 to
400, for 400 Hz Gen 378 Hz P121 Underfrequency Alarm
Time Delay
Amount of time the GSC+P waits beforeissuing an underfrequency alarm.
0 to 120 seconds(2)in increments
of 1 seconds10 P122 Underfrequency
Shutdown Enable The GSC+P enables or disables thegenerator underfrequency shutdown function.
0 - disabled
1 - enabled 1 P123 Underfrequency
Shutdown Threshold Frequency the GSC+P uses to issuean underfrequency shutdown. 30 to 50, for 50 Hz Gen36 to 60, for 60 Hz Gen 240 to 400, for 400 Hz Gen
45 Hz 54 Hz 360 Hz P124 Underfrequency
Shutdown Time Delay Amount of time the GSC+P waitsbefore issuing an underfrequency shutdown.
0 to 120 seconds(2)in increments
of 1 seconds15 P125 Reverse Power
Shutdown Enable The GSC+P enables or disables thegeneratorreverse power shutdown function.
0 - disabled
1 - enabled 1 P126 Reverse Power
Shutdown Threshold Level of reverse power the GSC+Puses to issue a reverse power shutdown.
0 to 20% of nameplate power in
increments of 1% 15% P127 Reverse Power
Shutdown Time Delay Amount of time the GSC+Pwaits beforeissuing a reverse power shutdown. 0 to 30 seconds
(2)in increments
of 1 seconds10 P128 Overcurrent Alarm
Enable
The GSC+P enables or disables the overcurrent alarm.
0 - disabled
1 - enabled 1 P129 Phase Overcurrent
Alarm Threshold Level of current the GSC+P uses toissue a phase overcurrent alarm. 100 to 160% of nameplatecurrent in increments of 5% 105% P130 Phase Overcurrent
Alarm Time Delay Amount of time the GSC+P waitsbefore issuing a phase overcurrent alarm.
0 to 250 seconds(2)in increments
of 1 seconds20 P131 Total Overcurrent
Alarm Threshold Level of current the GSC+P uses toissue a total overcurrent alarm. 100 to 160% of three timesnameplate current in increments of 5%
105%
P132 Total Overcurrent
Alarm Time Delay Amount of time the GSC+P waitsbefore issuing a total overcurrent alarm.
0 to 250 seconds(2)in increments
of 1 seconds20 P133 Overcurrent Shutdown
Ecable The GSC+P enables or disables theovercurrent shutdown. 0 - disabled1 - enabled 1 P134 Phase Overcurrent
Shutdown Threshold Level of current the GSC+P uses toissue a phase overcurrent shutdown. 100 to 160% of nameplatecurrent in increments of 5% 110%
(Table 7, contd)
OP5-1 Setpoints(1)- Protective Relaying Programming
Setpoint Name Description Range Of Value Factory Default
P135 Phase Overcurrent
Shutdown Time Delay Amount of time the GSC+P waitsbefore issuing a phase overcurrent shutdown.
0 to 250 seconds(2)in increments
of 1 seconds30 P136 Total Overcurrent
Shutdown Threshold Level of current the GSC+P uses toissue a total overcurrent shutdown. 100 to 160% of three timesnameplate current in increments of 5%
110%
P137 Total Overcurrent
Shutdown Time Delay Amount of time the GSC+P waitsbefore issuing a total overcurrent shutdown.
0 to 250 seconds(2)in increments
of one. seconds30 P138 KW Level Relay
Enable The GSC+P enables or disables thekW level relay function. 0 - disabled1 - enabled 1 P139 KW Level Relay
Threshold Level of power the GSC+P uses toactivate the kW level relay function. 0 to 110% of nameplate power inincrements of 1% 105% P140 KW Level Relay Time
Delay Amount of time the GSC+P waitsbefore activating the kW relay function. 0 to 120 seconds
(2)in increments
of 1 seconds0 P141 KW Level Relay
Disengage Threshold Level of power the GSC+P usesdeactivate the kW level relay function.
0 to 110% of nameplate power in increments of 1%
100% P142 KW Level Relay
Disengage Time Delay Amount of time the GSC+P waitsbefore deactivating the kW level relay function.
0 to 120 seconds(2)in increments
of 1 seconds10
(1) The setpoints are programmed at the factory to the default value. The setpoints may be changed in order to satisfy customer or application
requirements.
(2) When programmed to 0 seconds, the actual time is from 0.5 to 1.0 seconds.
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