what is negative d.c. voltage, why this voltage is used in base transciever station.

0 Answers   Vintage Air,

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What are the types of instrument transformer?

0 Answers  

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what is the difference between concentrated winding and Distributed winding in motor?

7 Answers   BSL, Infosys, TCS,

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If one 10 Hp 3phase induction motor connected in 380volt 50Hz. and again its connected to 380volt 60Hz. howmuch currrent and power take on both time?????

1 Answers  

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SUPPOSE A CIRCUIT BREAKER HAS TRIPPED THE THE LINE WHEN A FAULT OCCUR ON IT.NOW WHEN THE FAULT HAS BEEN CLEARED, HOW THE CIRCUIT BREAKER WILL CLOSE AUTOMATICALLY NOT MANUALLY.

6 Answers   Bureau of Energy Efficiency, DVC,

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in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).

2 Answers  

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I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

0 Answers   KVF,

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Why there is a current in neutral line

3 Answers   Honeywell,

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how many types of motor can be used in washing machine

0 Answers  

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How to calculat size of copper & aluminium ?

6 Answers  

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why selected genration, transmission or any at 11kv, 132, 220, 220 or 440 voltage which is propotional to 11. why does not any for ex. 12 kv 13kv or any

2 Answers  

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How the train speed control?

1 Answers   Bhel,

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