If genrator not build up voltage , How u can Manually
Excite ?

Answer Posted / kj

This is usually done by flashing the alternator. Turn of
load first.
Disconnect the AVR and connect the battery (9-12 volts)
across the field. Must be same polarity as the AVR. Run
generator and check output voltage. Voltage will usually be
higher then normal. if no voltage or unbalanced voltage the
windings or rotating diodes are faulty.
Stop generator and disconnect battery and reconnect AVR.
Try starting generator set again and check if voltage
present. If still not working replace AVR and try again.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

1638


66kv under ground cable how to layaing in ground any special case two ckt r runing

1518


What do you mean by reach and reach the point of the relay?

789


sir i have a car stereo system and there is jack on him so can u tell me a way to find out their power terminals on the jack or on the circuit board"

1555


We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?

9868






EXPLAIN THE TRANSFORMER MAINTENANCE?

1780


what is the current density of copper & alluminium.

1492


Whether the vacuum contactor requires Short circuit protection?If No,why?

1569


what is per unit calculation?looking for simple and strong explanation thk u

2430


what is the VA(Volt-amphere)? define with calculation?

762


What Is HO factor in power selection

1543


I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz

1616


1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks

2899


should %impedance be high or low in a power transformer? if so why?

1473


Define phase cross over?

653