who is ohm's and his law ?

1 Answers  

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an electric bulb or lamp can operate on ac and dc, if yes then why

5 Answers  

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if vcb make contact but output notreach give the reason?

2 Answers   VVF India,

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In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

0 Answers  

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which type your UPS on line,off line give the reason?

2 Answers   Roto Power,

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In ACS 1000 drive we used 12 pulse convertor.Why dont used 6 pulse or 3 pulse convetor

1 Answers  

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Explain Creepage Distance of Insulator

0 Answers   ABB,

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use of PIR in ehv breaker

0 Answers  

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how "rabbit ACSR" conductors are more efficient than "weasel ACSR" conductors

1 Answers   AITM,

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What is the use of Exciter in generator? & what will be the current of Exciter in 500 KVA DG Set?

2 Answers  

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I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

9 Answers  

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what is the difference between switch yard to residential area.and how much required it.

0 Answers   GVK,

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