Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
Page 104/179 © Woodward
Generator Voltage Monitoring
The line-to-line (wye) voltage is monitored.
Function: "Generator voltage not within the permissible limits" - If one or more phases of the generator voltage
exceeds the limit values set for overvoltage or undervoltage, the engine is shut down immediately (F3 class
alarm) and an alarm message is displayed. Monitoring of generator undervoltage is delayed by means of "De-
layed engine monitoring" (Parameter 271) in order to enable generator start-up.
Parameter 174
Gen.voltage
monitoring ON
Generator voltage monitoring ON/OFF
ON ................ Monitoring of the generator voltage is enabled. The subsequent
screens of this function are displayed.
OFF .............. Monitoring of the generator voltage is disabled. The subsequent
screens of this function are not displayed.
Parameter 175
Gen.overvoltage
V > 000.0%
Generator overvoltage threshold value 020,0 to 150,0 %
L This value refers to the parameter "Rated volt. in system" (Parameter 17).
If the monitored generator voltage exceeds the configured percentage of the rated
generator frequency for at least the delay time configured in Parameter 176, an F3
class alarm
is issued.
Issuing of F3 class alarm
NOTE
The threshold value for generator overvoltage may not exceed 149 V [1] or 495 V [4] for delta connec-
tions, because higher voltages cannot be detected.
Parameter 176
Gen.overvoltage
delay 0.00s
Generator overvoltage delay 0.02 to 9.98 s
For the control unit to recognize that a generator overvoltage fault has occurred, the
threshold value configured in Parameter 175 must be exceeded without interruption
for t
his period of time.
Parameter 177
Gen.undervoltage
V < 000.0%
Generator undervoltage threshold value 020,0 to 150,0 %
L This value refers to the parameter "Rated volt. in system" (Parameter 17).
If the monitored generator voltage falls below the configured percentage of the
rated generator frequency for at least the delay time configured in Parameter 178,
an F3 class alarm
is issued.
Issuing of F3 class alarm
Parameter 178
Gen.undervoltage
delay 0.00s
Generator undervoltage delay 0.02 to 9.98 s
For the control unit to recognize that a generator undervoltage fault has occurred,
the threshold value configured in Parameter 177 must be exceeded without inter-
rupt
ion for this period of time.

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English