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why two fuses are used in battery charging room?one in positive
line and the other in negative line?do any DC system require two
fuses?
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Answer / guest
yes, bcoz the negative is the desired return path for the
current in dc system .were as in ac system
earthing/nutral is the return path
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in dc transmission the frequency pi is zero, then how it will transmit communication signal?
What mean power grid fail. why power grid fail.
1 Answers Intas, Tech Mahindra,
Ceiling fan motor wiring Hi, I have 2 ceiling fans broken. The receiver/control units burned out due to lightening. One Harbor Breeze and one Hunter's I took them apart (remove receiver units). Now on both of the motor I see 4 wires coming out from each motor I really want to know the function of each wire. Are there anyway I can test to see which is which? After searching forums I know these 4 wires are from 2 sets of coils inside the motor, one is Start winding and the other is Runing winding I could not find the receiver/control unit any where, so I am planing to buy Capacitors and universal remote controls to make the fans run again. Anyone has any idea how to do the wiring, please help Thnks
1500Ah VRLA battery,if its weight is designed 125kg during maufacturing its weight is reduced to 85kgs,What will be impact on AH capacity,life & economy?
Draw a SLD of HT distribution EB grid up to users Transformer?
Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?
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If load current is 70amps or 50amps what range of CT to install for ampere metering
Why the capacitor bank is keeping on for electricity supply and keeping it off for generator supply
which types of tests are required after commissioning of 6.6 kva tranformer?
Why Aluminium wires are used for High tension(HT) lines? 11 KVA/32KVA & aboue
how is the incoming cable size calculated for a given current rating of a panel??
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