Why celing fans will rotate slowly after some days.?

2 Answers  

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how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?

0 Answers   Bhel,

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what is a diffrence between MCCB, RCCB, MCB, & ELCB ? what is rated current e.g. on motor name plate indicated that is rated curent? what is full load current? If we run D.C. motor with mechanical coupling and we measure voltage on terminal it shows voltage or not ? same in AC also possible ?

5 Answers   Reliance,

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what will be the effect if we increase the excitation of a alternator??

3 Answers  

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WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv

4 Answers   BCET, NTPC,

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What are the difference between these terms ? e.m.f, voltage, potential, potential difference, current etc? what are the difference between these terms ? (electromotive force) e.m.f, voltage, potential, potential difference, reference potential, reference potential difference, current. How can i explain and describe these all terms in single line each and little more explaination too thanks

2 Answers   Siemens,

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why ct mensioned 0.5/5p20 plese any reply to me

2 Answers  

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If genrator not build up voltage , How u can Manually Excite ?

2 Answers  

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why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

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On what factors the generating voltage depends ? Generating voltage are (3.3kV, 6.6KV , 11KV, 13.8kV) Why so ?

5 Answers   Bhel,

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what are the types of 3-ph. generator protection

2 Answers  

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What is difference between Dy11 & Dyn11 vector group transformer. Can both these transformers operate in parrallel.

5 Answers   Jaypee, JOY,

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