Answer Posted / sunny

AC motor will be of bigger size because of the alternating nature of current to reduce eddy currents core is laminated & also the outer frame has given a shape for max. surface area to dissipate heat.

for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1911

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Why r u using pf panel. what the uses

1940

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What is the test block protection relay if any body know plz explained

1411

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Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

1699

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What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr

1020

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there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1880

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why constant voltage transformer should be start without load? and if started then what will happen?

1985

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Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?

2569

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what is inter connected dc generator?

2749

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WE HAVE THE DC RECTIFIER 1500A, INPUT VOLTAGE IS 3 PHASE. HOW TO CALICULATE THE LOAD? 3 PHASE SIDE EITHER dC SIDE. PLEASE SUGGEST ME

1823

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how the characterstics of control valve being done

2012

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What is the end effect of linear induction motor ??

1954

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When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

1847

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Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

1341

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Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?

2811

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