Generator Parameters; Serial Start/Stop Initiation - GE 489 Instruction Manual

4 SETPOINT PROGRAMMING
T
GEN. PARAMETERS
T
[ENTER] for more
MESSAGE
MESSAGE
MESSAGE
MESSAGE
As a safeguard, when a unit is received from the factory, the
defaulted to "--------", indicating they are not programmed. The 489 indicates that it was never programmed. Once these
values are entered, the 489 will be in service. All elements associated with power quantities are programmed in per unit
values calculated from the rated MVA and power factor. The generator full load amps (FLA) is calculated as
Generator FLA = --------------------------------------------------------------------------------------------------------------------- -
×
3 Generator Rated Phase-Phase Voltage
All voltage protection features that require a level setpoint are programmed in per unit of the rated generator phase-phase
voltage.The nominal system frequency must be entered here. This setpoint allows the 489 to determine the internal sam-
pling rate for maximum accuracy. If the sequence of phase rotation for a given system is ACB rather than the standard
ABC, the system phase sequence setpoint may be used to accommodate this rotation. This setpoint allows the 489 to prop-
erly calculate phase reversal and negative sequence quantities.
T
SERIAL START/STOP
T
[ENTER] for more
MESSAGE
MESSAGE
MESSAGE
If enabled, this feature will allow the user to initiate a generator startup or shutdown via the RS232/RS485 communication
ports. Refer to the Communications chapter for command formats. When a startup command is issued, the auxiliary
relay(s) assigned for starting control will be activated for 1 second to initiate startup. When a stop command is issued, the
assigned relay(s) will be activated for 1 second to initiate a shutdown.
GE Power Management
ð
GENERATOR RATED
ENTER
MVA: ----------------
ESCAPE
GENERATOR RATED
ESCAPE
POWER FACTOR: -------
MESSAGE
GENERATOR VOLTAGE
ESCAPE
PHASE-PHASE: --------
MESSAGE
GENERATOR NORMAL
ESCAPE
FREQUENCY: ----------
MESSAGE
GENERATOR PHASE
ESCAPE
SEQUENCE: -----------
MESSAGE
PHASE CT PRIMARY
Generator Rated MVA
ð
SERIAL START/STOP
ENTER
INITIATION: Off
ESCAPE
STARTUP INITIATION
ESCAPE
RELAYS (2-5): ----
MESSAGE
SHUTDOWN INITIATION
ESCAPE
RELAYS (1-4): ----
MESSAGE
SERIAL START/STOP
ESCAPE
EVENTS: Off
MESSAGE
489 Generator Management Relay
4.3 S2 SYSTEM SETUP

4.3.3 GENERATOR PARAMETERS

Range: 0.050 to 2000.000 MVA
"----------" indicates Not Programmed
Range: 0.05 to 0.99, 1.00
"----------" indicates Not Programmed
Range: 100 to 30000 V; Step: 1
"----------" indicates Not Programmed
Range: 25 Hz, 50 Hz, 60 Hz
"----------" indicates Not Programmed
Range: ABC, ACB
"----------" indicates Not Programmed
and Generator Parameters setpoints will be

4.3.4 SERIAL START/STOP INITIATION

Range: On, Off
Range: Any Combination of Relays 2 to 5
Range: Any Combination of Relays 1 to 4
Range: On, Off
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