DSE Model 7000 Series Control and Instrumentation System Operators Manual
62
Part No. 057-074 7000 Series OPERATING MANUAL ISSUE 2 02/05/2008 ADM
8.6 ELECTRICAL TRIPS
Electrical trips are latching and stop the Generator but in a controlled manner. On initiation of the electrical trip
condition the module will de-energise the ‘Close Generator’ Output to remove the load from the generator. Once
this has occurred the module will start the Cooling timer and allow the engine to cool off-load before shutting down
the engine. The alarm must be accepted and cleared, and the fault removed to reset the module.
Example
Alarm 1/1
Generator Current High
Electrical Trip
Electrical trips are latching alarms and stop the Generator. Remove the fault then press Stop/Reset
to reset the
module.
Display
Reason
GENERATOR OVER CURRENT
If a generator output in excess of the high current alarm point, a warning
alarm occurs. If this high current condition continues for an excess period,
then the alarm escalates to either a shutdown or electrical trip condition
(depending upon module configuration). For further details of the high
current alarm, please see High Current Shutdown Alarm.
AUXILIARY INPUTS
If an auxiliary input configured as an electrical trip is active, the appropriate
message will be displayed as configured by the user.
kW OVERLOAD
The measured Total kW is above the setting of the kW overload Electrical
Trip alarm
EARTH FAULT
(DSE7300 series V2.0.0 or above
only)
The measured Earth Current is above the setting of the Earth fault alarm.
NEGATIVE PHASE SEQUENCE
(DSE7000 series V2.0.0 or above
only)
Indicates ‘out of balance’ current loading of the generator.
Sometimes also called Negative Sequence Current or Symmetry Fault
