Answer / yk

KVA RATING WILL CHANGE PROSNALY WITH FREC IF FREC IS
DECRESED VOLTAGE ON TERMINAL WILL DECREAS AND IF CURRENT
KEPT CONSTANT KVA O/P WILL DECREAS . IF CURRENT IS NOT
CONSTAN THEN FOR SAME KVA CURRENT WILL INCREAS AND
TRANSFORMER WILL BE OVER LOADED .

state types of reflectors in illumination engg. ???????

0 Answers  

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Why we call cable rating in SQ.mm.If it is 240 SQ.mm how much the diameter possible?is there any calculation ?

4 Answers  

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In Railway,why we are used HT Line 25KV ?.why we are not used 11KV,33KV and others for This?

37 Answers   Airtel, BSNL, RRB,

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In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

0 Answers  

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In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????

0 Answers   Equate,

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how can calculate 1kva generator running time in 1 liter keroscene

0 Answers   Kirloskar,

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DG B-check,C-Check,D-check is depending upon the running hrs.If the running hrs is not reached as mentioned.How to conduct the DG checks.

15 Answers   Blue Star,

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Ns=120f/p. what is 120?

10 Answers   IAR, L&T, Ramada, Toshiba,

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Define cut-off rate?

0 Answers  

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how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me

0 Answers   ME,

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what is the material use in bus bar & why.

3 Answers  

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How can I calculate the trnaformer effciency at different loading condition?

2 Answers  

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