TSC 7320 Transfer Switch Controller
PM180 REV 0 23/02/10 Thomson Power Systems
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4.2. ON LOAD TEST INSTRUCTIONS (UTILITY POWER FAIL SIMULATION)
To initiate an ATS On Load Test, press the test button on the TSC 7320 controller to enter test
mode.
Next, press the gen start button (green), and the controller will start the generator and once it
reaches the nominal voltage and frequency, the switch will be transferred to the generator and
take over the load.
To stop the on-load test and return to normal, press the auto button, and the controller will start
a utility return delay timer, and transfer back to the utility when the timer expires. The generator
will continue to run until the cooling expires, and then it will turn off the generator.
Note :
Pushing the red stop button will initiate a return to Utility request followed by an engine stop. If
the utility is available, the ATS will transfer to utility and stop the engine ignoring any countdown
timers. If the Utility is not available, the controller will turn off the generator, and generate a
Mains Fail to Close Alarm.
4.3. OFF LOAD TEST INSTRUCTIONS (GENERATOR NO LOAD TEST)
To initiate an ATS off load test, press the manual button on the TSC 7320 controller to enter
manual mode.
Next, press the gen start button (green), and the controller will start the generator, but the switch
will NOT transfer to generator, even if the source is healthy.
To stop the off-load test and return to normal, press the STOP button, and the controller will turn
off the generator. If the Auto mode button is pushed, the controller will start a countdown timer
and then turn off the generator.
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