Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 87/179
Dead Bus Start
If the busbar is de-energized, a dead bus start of the GCB or the MCB is performed. If closing commands for the
MCB and the GCB are issued simultaneously, priority is given to the MCB provided the discrete input "Enable
MCB" (terminal 54) has been energized.
Parameter 125
GCB dead bus op.
ON
GCB dead bus start ON/OFF
ON ................ A dead bus start is performed in the event of a de-energized busbar
and an open MCB. The subsequent screens of this function are dis-
played.
OFF .............. A dead bus start will not be performed. The subsequent screens of
this function are not displayed.
Parameter 126
GCB dead bus op.
df max 0.00Hz
Maximum frequency differential for GCB dead bus start 0.05 to 5.00 Hz
Prior to issuing a breaker close command, the frequency differential between the
monitored generator frequency and the rated generator frequency must be less than
the value configured here. The higher the frequency differential is configured, the
more rapidly a generator may be permitted to close to a dead bus.
Parameter 127
GCB dead bus op.
dV max. 00.0%
Maximum voltage differential for GCB dead bus start 01.0 to 15.0 %
L This value refers to the parameter "rated voltage in system" (Parameter 19).
Prior to issuing a breaker close command, the voltage differential between the mo-
nitored generator voltage and the rated generator voltage must be less than the val-
ue configured here. The higher the voltage differential is configured, the more ra-
pidly a generator may be permitted to close to a dead bus.
Parameter 128
GCB dead bus op
max.time 000s
Maximum time for closing the GCB 0 to 999 s
This timer is initiated at the start of the breaker closing sequence when the GCB is
to be closed to a dead busbar. If the breaker fails to close prior to the configured
time expiring, an F1 class alarm is issued.
Issuing of F1 class alarm
Parameter 129
MCB dead bus op.
ON
[GCP-32]
Dead bus closing of the MCB ON/OFF
ON ................ A dead bus closing of the MCB is performed in the event of a de-
energized busbar and an open GCB. The subsequent screens of this
function are displayed.
OFF .............. A dead bus closing of the MCB will not be performed. The subse-
quent screens of this function are not displayed.

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English