Why we use DC for charging of Batteries??Why not AC Supply???

6 Answers   Emerson, Infosys,

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Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

0 Answers  

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why breather cap filled with oil?

7 Answers  

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How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.

0 Answers   Wipro,

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Why armature rheostat is kept in maximum position?

0 Answers  

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If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

0 Answers  

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How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.

0 Answers   ISS,

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What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..

0 Answers   ABB,

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what is B , c & d curves in MCB characteristics i e Full Form of B , C & D . sir please give me answer

1 Answers   NCC,

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considering the 3phase and single phase ac system the load applied and the volage given is same...will the current differs for both the cases are it wil remain same?

5 Answers  

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I have a 25kVA three phase transformer on our property. Will this transformer be large enough to run a large home with swimming pool, spa, 2 off full size reverse cycle air conditioners to service a 100 square house (10,000 square feet or 930 square metres)and the general power consumption of this house without upgrading to a 63kVA transformer.

1 Answers  

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what is our body resistance value?

11 Answers   Bhel,

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