Pre-Fault - GE 850 Instruction Manual

CHAPTER 4: SETPOINTS

Pre-Fault

850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
FORCE RELAYS
Range: Disabled, Enabled
Default: Disabled
When in test mode, and Force Relays is "Enabled", relay states can be forced from the
Setpoints\Testing\Output Relays menu, this overrides the normal operation of the output
contacts. When in test mode, and Force Relays is "Disabled", the relay states maintain
their normal operation. Forcing of output relay states is not performed when the
Simulation State is "Disabled".
FORCE LEDS
Range: Disabled, Enabled
Default: Disabled
When in test mode, and Force LEDs is "Enabled", LED states and colors can be forced
from the Setpoints\Testing\Test LEDs menu, this will override the normal operation of the
LEDs. When in test mode, and Test LEDs is "Disabled", the LED states and colors will
maintain their normal operation. Forcing of LEDs is not performed when the Simulation
State is "Disabled".
This state is intended to simulate the normal operating condition of a system by replacing
the normal input parameters with programmed pre-fault values. For proper simulation,
values entered here must be below the minimum trip setting of any protection feature.
Voltage magnitudes and angles are entered as Wye values only. The voltage setpoints are
not available if the corresponding VT Bank PHASE VT CONNECTION setpoint is Delta.
Voltages are set in secondary VT units.
The CT and VT Bank availability is dependent on the installed Order Code options.
Path:
Setpoints > Testing > Simulation > Pre-Fault
..\Simulation\Pre Fault
Item Name
J2 Prefault Van Voltage
J2 Prefault Vbn Voltage
J2 Prefault Vcn Voltage
J2 Prefault Vx Voltage
K2 Prefault Van Voltage
K2 Prefault Vbn Voltage
K2 Prefault Vcn Voltage
K2 Prefault Vx Voltage
J2 Prefault Van Angle
J2 Prefault Vbn Angle
J2 Prefault Vcn Angle
Pre Fault
J1(J2,K1,K2) Prefault Van(Vbn,Vcn,Vx) Voltage:
Range: 0.00 to 300.00 V in steps of 0.01
Default: 0.00 V
J1(J2,K1,K2) Prefault Van(Vbn,Vcn,Vaux) Angle:
Range: -359.9° to 0.0° in steps of 0.1
Default: 0.0°
J1(J2,K1,K2) Prefault Phase la(lb,lc):
Range: 0.000 to 46.000 x CT in steps of 0.001
Default: 0.000 x CT
Phase current magnitudes are entered as a multiple of the corresponding CT Bank
PHASE CT PRIMARY setpoint.
Value Unit
0.00 V
0.00 V
0.00 V
0.00 V
0.00 V
0.00 V
0.00 V
0.00 V
0.0 °
0.0 °
0.0 °
TESTING
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