FAQ Generator Low Voltage; AVR Failure; AVR lifespan

[wellandpower]

This is for information only, you should not attempt to perform any of these actions unless qualified to do so as they have the potential to endanger life. Do not risk your life, call a suitable qualified person.



Low Voltage can be seen in two ways. First it can be seen as a generator conroller alarm / trip if the control panel you are using supports it, or it can be seen by dim lighing.

If the controller is showing low voltage, we always suggest double checking the voltage with a suitably calibrated Multi-meter to check the reading - sometimes you do get panels fail giving an incorrect reading.


If the voltage is a long way below target (for example 80 amps line-to-neutral when it should be 230V) it is likely that the AVR has failed and it should be replaced.

If it is just a little way (say 200V, when it should be 230V) you can try and adjust it.

Adjust it by altering the voltage pot on the AVR (on most AVR controlled generators). YOU SHOULD NOT DO THIS WHILE THE ENGINE IS RUNNING DUE TO ELECTRIC SHOCK RISK. Or better, but using a remote voltage trimmer (fitted on some high end models).

Adjustment using the POT requires only very slight movements. The voltage trimmer will depend on the model and we would suggest starting slowly also.

If the voltage on the unit does not adjust, then your voltage adjustment on the AVR will probably have failed and you should probably replace the AVR.

[wellandpower]

If your generator has NO VOLTAGE, then this might be your answer:

http://www.wellandpower.net/forums/s...citation?p=364