Manual 37365A GCP-30 Series Packages - Genset Control
© Woodward Page 99/179
Generator Reverse/Reduced Power Monitoring
NOTE
All percentage values refer to a percentage of the generator rated power (Parameter 21; page 27).
Function: "Real power not within the permissible limits" - The real power measured in a single-phase or in a
three-phase system is below the configured limit value for the minimum load or below the configured value for
reverse power. By setting positive threshold values (minimum load monitoring), a shutdown can be performed
before the generator ends up in reverse power.
Parameter 156
Rev./red.power
monitoring ON
Reverse/reduced power monitoring ON/OFF
ON ................ Monitoring of the generator reverse/reduced power is enabled. The
subsequent screens of this function are displayed.
OFF .............. Monitoring of the generator reverse/reduced power is disabled. The
subsequent screens of this function are not displayed.
Parameter 157
Rev./red.power
resp.value -00%
Reverse/reduced power monitoring threshold value -99 to 99 %
Reverse power monitoring: If a negative threshold value is configured and the
monitored power falls below the threshold value for at least the delay
time (Parameter 158), an F3 class alarm is issued.
Reduced power monitoring: If a p
ositive threshold value is configured and the
monitored power falls below the threshold value for at least the delay
time (Parameter 158), an F3 class alarm is issued
Issuing of F3 class alarm
Parameter 158
Rev./red.power
delay 0.0s
Reverse power monitoring delay 0.0 to 9.9 s
For the control unit to recognize that a reverse or reduced power fault has occurred,
the threshold value configured in Parameter 157 must be exceeded without inter-
rupt
ion for this period of time.
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