Pre-Fault - GE 845 Instruction Manual

TESTING

Pre-Fault

4–356
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
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
J2 Prefault Van(Vbn,Vcn,Vx) Voltage:
Range: 0.00 to 300.00 V in steps of 0.01
Default: 0.00 V
J2 Prefault Van(Vbn,Vcn,Vaux) Angle:
Range: -359.9° to 0.0° in steps of 0.1
Default: 0.0°
J1(K1,K2) Prefault Phase la(lb,lc):
Range: 0.000 to 46.000 x CT in steps of 0.001 x CT
Default: 0.000 x CT
Phase current magnitudes are entered as a multiple of the corresponding CT Bank
PHASE CT PRIMARY setpoint.
J1(K1,K2) Prefault Phase lg:
Range:
For Ground CT: 0.000 to 46.000 x CT in steps of 0.001 x CT
Default: 0.000 x CT
The ground current magnitude setpoint range is dependent on the ground CT type as
defined in the Order Code options. For Ground CT, the magnitude is entered as a multiple
of the corresponding CT Bank GROUND CT PRIMARY setpoint.
J1(K1,K2) Prefault la(lb,lc,lg) Angle:
Range: -359.9° to 0.0° in steps of 0.1
Default: 0.0°
menu, this will override the normal operation of
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS