Answer Posted / venkat

Actually... i hav a doubt...
wat will happen if we connect a dc source to a tubelight.,,
will it work or wont it work...
if it does nt work is it due to the blockage of dc by capcitor...????

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I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

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why do we carry out winding resistance test?

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