Manual 37259C
SPM-D11 - Synchronizing Unit
Page 62/79
© Woodward
Generator Overload Monitoring
Generator real power is monitored to ensure it does not exceed a preset limit. The watchdog assigned to this relay
is at terminals 37/38. The relay contact is a N.O. contact. When operating in normal operations the relay is con-
tinuously energized. If the monitored values leave the configured range, the relay will de-energize, the contact
will open, and the message "Gen. overload" will be displayed. If the fault conditions exist for less than 1 second,
the relay returns to normal operations. The fault message on the display may be cleared automatically or by
pressing the ""Clear" button (see chapter Auto Acknowledge Messages at page 64).
Gen. overload
Monitoring ON
Overload monitoring
ON / OFF
ON
................Monitoring of generator real power for overload is performed. The
following screens of this function are displayed.
OFF
..............There is no real power overload monitoring and the following
screens of this function are not displayed.
Gen. overload
Threshold =000%
Generator overload threshold
0 to 150 %
The threshold value refers to the configured generator rated power.
Gen. overload
Delay time = 00s
Generator overload monitoring delay
0 to 99 s
The generator real power must remain above the threshold value without interrup-
tion for at least the period of time specified in this screen for a fault condition to be
recognized. If 0 seconds if configured here, the delay time is approximately 80ms.