Answer / guest

frequency is depends upon the requirement, we can vary the
frequency of the supply in the generator by increasing the
rpm , frequency 50 hz is better because many of the losses
in the transmission and distribution is also depends on the
frequency

I am working in transmission network, one of my 66kv line having short distance about 6km, when sending end voltage is 67kv receiving end get 69kv, i want to know that, does distance affects in this matter, please explain in this matter & if possible answer me on my mail id, kaushikkumar.vanavi@getcogujarat.com, kaushik.vanavi@gmail.com

5 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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A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS

2 Answers  

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where they are using surge arrester and lighting arrester? how they connect? what is the purpose of that?

1 Answers  

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what is meant by tranformer impedance?

0 Answers   Synergy,

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What is meant by Resonance what are the different types of resonance and what are uses of them?

14 Answers   Infosys, NTPC,

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Is it possible to measure the voltage of a battery from a single terminal?

0 Answers  

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what is inrush current in transformer?

17 Answers   Bhel, Essar, GMR,

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L&T ACB C-POWER OF 800A FAULS TRIPING AT THE TIME OF 110KW MOTOR STARTS WITH EARTH FAULT RELEASE

1 Answers   Ambuja,

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why transformer rating is in kva?

11 Answers  

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Why do not we prefer non conventional sources of energy to conventional sources?

0 Answers   Nabard,

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how does oil cools the transformer

3 Answers   HBL Power Systems,

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