DSE Model 5310 Automatic Mains Failure & Instrumentation System Operators Manual
Part No. 057-013 5310 OPERATING MANUAL ISSUE 7.1 18/06/2007 ADM 19
4.5 HIGH CURRENT SHUTDOWN ALARM
GENERATOR HIGH CURRENT, if the module detects a generator output current in excess of the pre-set trip a
warning is initiated. This warning will continue for a period of time depending upon the level of overload that the
generator is subjected to, and the configuration setting for Generator High Current in the 5xxx series configuration
software.
Alarm
Shutdown
High current trip
For instance the factory default settings for Generator High Current allow for a loading of the generator to 110% for
one hour. That is to say if the generator load level exceeds the trip point by 10%, a warning alarm will occur while
the overload condition exists. If the load level does not drop to normal levels within one hour, the set is stopped,
the 5310 module displaying either shutdown alarm or electrical trip alarm depending upon module configuration.
NOTE:- Higher overload levels will result in a faster acting shutdown condition. For instance with
the factory default configuration, an overload level twice that of the trip level ( typically 200%) will result
in a Generator High Current shutdown condition after 36 seconds.
For details of the relationship between the overload and the shutdown time, please see the Appendix
section of this manual.
4.6 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.
AUXILIARY INPUTS, if an auxiliary input has been configured as an electrical trip the appropriate message will be
displayed as configured by the user.
Example
Alarm
Electrical trip
Phase rotation
GENERATOR HIGH CURRENT. If the module detects a generator output current in excess of the pre-set trip a
warning is initiated. If this high current condition continues for an excess period of time, then the alarm is escalated
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.
Alarm
Electrical trip
High current
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