for preparation of design note of 11 / 220 kV , 3 phase, 63 MVA transformer how can calculate or consider the iron losses and copper losses

1 Answers  

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please explain power factor in simple words.....

3 Answers  

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Why motor is not calculated in kva, whereas transormers are calculated in kva

2 Answers  

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I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 Answers  

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Why smallest capacity LV motor are star connected and medium & bigger size LV motors are delts connected

1 Answers  

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Q-1 what are the structural and operational difference between a distribution and a power transformer? Q-2 what is skew in motors? Q-3 draw equivalent circuit of transformer Q-4 explain with phasors how pf is improved with loading in induction motors Q-5 DIFFERENT METHODS OF CABLE LAYING(interviewer asked if i heard new chemical based earthing system next) Q-6 pi model of medium length trans line Q-7 v/f control?why Q-8 vacuum circuit breaker operates in?

1 Answers   Vijai Electricals,

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why did the BDV test in transformer?

2 Answers   Jindal Steel and Power,

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where rlc series ckt used?

0 Answers   ABB,

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Why PT burnts?

2 Answers  

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what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

0 Answers  

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Explain what is rated speed?

0 Answers  

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what is the speed of electricity?

11 Answers   Bhel,

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