Manual 37365A GCP-30 Series Packages - Genset Control
Page 100/179 © Woodward
Unbalanced Load Monitoring
NOTE
All percentage values refer to a percentage of the generator rated power (Parameter 22; page 27).
Function: "Generator load imbalance not within the permissible limits" - The percentage threshold value speci-
fies the permissible deviation of any single phase current to the arithmetic mean value of all three phase currents.
Parameter 159
Load unbalanced
monitoring ON
Unbalanced load monitoring ON/OFF
ON ................ Monitoring for unbalanced load of the generator real power is
enabled. The subsequent screens of this function are displayed.
OFF .............. Monitoring for unbalanced load of the generator real power is dis-
abled. The subsequent screens of this function are not displayed.
Parameter 160
Load unbalanced
max. 000%
Maximum permissible unbalanced load 0 to 100 %
For the control unit to recognize that an unbalanced load fault has occurred, the
monitored phase load must exceed the configured load differential percentage
without interruption for the delay time configured in Parameter 161. An F3 class
alarm
is issued when the delay time expires.
Issuing of F3 class alarm
Parameter 161
Load unbalanced
delay 00.00s
Unbalanced load monitoring delay 0.02 to 9.98 s
For the control unit to recognize that an unbalanced load fault has occurred, the
threshold value configured in Parameter 160 must be exceeded without interruption
for t
his period of time.
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