Manual 37278B GCP-30 Series - Genset Control
Page 140/174 © Woodward
6. "AUTO" operation mode (press the "AUTO" push-button): Applying the automatic control inputs and
the engine start request can now carry out automatic starting with subsequent synchronization.
Check synchronization:
Check the generator and the generator busbar rotating fields. Check the connect
command with a zero voltmeter (determination of the phase angle) at the generator power circuit breaker
(GCB). If several correct synchronizing pulses have been output, switch the operation mode to "STOP"
and reconnect the connect pulse "Command: close GCB" with the engine in "STOP" mode.
7. If steps 1 through 6 have been carried out successfully, parallel operations may be commenced. It is rec-
ommended to start with a constant power/baseload operation (approx. 25 % of the generator rated power)
initially. While this operation is being carried out, the displayed measured values must be verified. Test
the GCB shutdown. Check the real power controller and if necessary the power factor controller for prop-
er operation. Enter various set point values and verify proper operation.
8. If the mains parallel operation performs in a satisfactory manner, the synchronization of the mains power
circuit breaker (MCB) must be checked:
A power failure in the system must be simulated or observed by the controller. During a mains parallel
operation, change the operation mode from AUTOMATIC to MANUAL. Open the MCB ("MCB ON"
LED will turn off). Press the AUTOMATIC push-button to return the controller back to the AUTOMAT-
IC operation mode.
Check the generator busbar and the mains rotating field.
Check the connect command with a zero voltme-
ter (determination of the phase angle) at the MCB
. If several correct synchronizing pulses have been out-
put, switch the operation mode to "STOP" and re-connect the connect pulse "Command: close MCB" with
the engine in "STOP" mode.
9. Test the emergency power operation functions
NOTE
The automatic operation mode is influenced by the input signals "Automatic 1" and "Automatic 2". En-
sure that the power circuit breaker reply messages are processed as the reverse of the condition (i.e.
when the circuit breaker is closed the reply message for the inputs: CB is open (terminal 54) is 0 volts.
The CB aux contacts should be configured as normally closed! Refer to the description of the auxiliary
and control inputs starting on page 10. It is vital that these replies be connected!
Electrical insulation between voltage supply and discrete control and feedback inputs:
By the use of corres-
ponding external wiring, the common reference point of the discrete inputs can be electrically isolated from the
supply voltage (0 V, terminal 2). This is necessary if the discrete inputs are not to be triggered with 24 Vdc and
electrical isolation of the control voltage (e. g. 220 Vdc, 220 Vac) from the supply voltage must be insured.
To Next Page
Loading...
Need help?
General
