Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
Page 100/190 © Woodward
STOP TEST MANUAL AUTOMATIC
CLOSED TRANS.: Breaker logic "Closed transition / make-before-brake / overlap synchronization"
The MCB and the GCB are synchronized, in order to avoid a dead busbar in this breaker logic mode. Immediately after the
synchronization of one breaker, the other is opened. Continuous mains parallel operation is not possible.
The GCB is ope-
ned; the MCB is
not operated.
The GCB and the MCB are not
operated.
Exception
: Load test by actuating
the "GCB ON" push-button.
Termination of the load test via
the "GCB OFF" or "MCB ON"
push-button(s).
Emergency power:
Automatic
closing of the GCB. If there is a
dead busbar and terminal 53 "En-
able MCB" is energized, the
MCB will be closed.
Synchronization of either the
generator or the mains can be ini-
tiated by pressing the "GCB ON"
or "MCB ON" push-button.
The GCB is synchronized via an
add-on request. After the GCB
closes the MCB is opened.
Following the shed-off request
being issued, the MCB is
synchronized and closed. After
the MCB has closed the GCB is
opened.
Emergency power:
The emer-
gency power operation is termi-
nated following the expiration of
the mains settling time and the
MCB synchronizing to the gen-
erator. The MCB closes and the
GCB opens immediately after-
wards.
[GCP-22 only] INTERCHANGE: Breaker logic "Soft loading / interchange synchronization"
The MCB and the GCB are synchronized, in order to avoid a dead busbar in this breaker logic mode. The operation of a
breaker under load is avoided by utilizing the ability to soft load. Continuous mains parallel operation is not possible with this
breaker logic. Following the shed-off request, the MCB synchronizes and closes, the generator soft unloads to the mains and
the GCB opens. After the GCB is open the engine is stopped following the expiration of the configured cool down period.
The GCB is ope-
ned; the MCB is
not operated.
The GCB and the MCB are not
operated.
Exception
: Load test by actuating
the "GCB ON" push-button.
Termination of the load test via
the "GCB OFF" or "MCB ON"
push-button.
Emergency power
: Automatic
closing of the GCB. If there is a
dead busbar and terminal 53 "En-
able MCB" is energized, the
MCB will be closed.
Synchronization of either the
generator or the mains can be
initiated by pressing the "GCB
ON" or "MCB ON" push-button.
Via an engine request, the GCB
is synchronized and the generator
power is increased. The MCB is
then opened. Following the dis-
abling of the engine request, the
MCB is reverse synchronized and
the GCB is then opened.
Emergency power:
The emer-
gency power operation is termi-
nated following the expiration of
the mains settling time. The
MCB closes, the load is trans-
ferred, and the GCB opens.

Woodward GCP-20 Series Specifications

General

Brand	Woodward
Model	GCP-20 Series
Category	Control Unit
Language	English