Manual 37128A GCP-20 Series - Genset Control
Page 106/190 © Woodward
Parameter 122
MCB dead bus op.
ON
[GCP-20/22] only
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 is not performed. The subsequent
screens of this function are not displayed.
Connection Functions (With Induction/Asynchronous Generators Only)
Parameter 123
Connect GCB
ON
Dead bus start of the GCB ON/OFF
ON................Generator frequency control is performed with the set point of the
mains frequency. The GCB is closed after meeting all connection cri-
teria listed below. The subsequent screens of this function are dis-
played.
OFF..............The GCB is not closed. The subsequent screens of this function are
not displayed.
Parameter 124
Connect GCB
df max 0.00Hz
Max. perm. diff. frequency for GCB connection (pos. slip) 0.05 to 9.99 Hz
The prerequisite for issuing a close command is the monitored generator frequency
may deviate from the generator rated frequency by no more than this value. This
value specifies the upper frequency limit (positive value corresponds to positive
slip Æ generator frequency is higher than the busbar frequency in the case of GCB
synchronization).
Parameter 125
Connect GCB
df min -0,00Hz
Min. perm. diff. frequency for GCB connection (neg. slip) 0.0 to
-9.99 Hz
The prerequisite for issuing a close command is the monitored generator frequency
may deviate from the generator rated frequency by no more than this value. This
value specifies the lower frequency limit (negative value corresponds to negative
slip Æ generator frequency is less than the busbar frequency in the case of GCB
synchronization).
Parameter 126
Connect GCB
Time pulse>0.00s
Time pulse for the GCB 0.05 to 0.26 s
The duration of the close pulse can be adjusted to the breaker.
To Next Page
Loading...
Need help?
General
