IN 500 KVA TRANSFORMER 11KV/415 VOLTS HOW TO CALCULATE THE HT CABLE SIZE AND LT CABLE SIZE FROM TRANSFORMER TO LT PANNEL. AND HOW MANY MAINSWITCHES OR MCBS WITH RATING ARE TO BE PROVIDED

2 Answers   BSF,

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

0 Answers   VECL,

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why the neutral point of star connnection oscillates?

3 Answers   Avalon,

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What value(high/low) of diversity factor is desired in power system and why? How such value is achieved?

1 Answers  

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how to take the 3 phase ups input and collect single phase output

1 Answers  

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what is meant by PU value ? anyone can you explain briefly to me ?

3 Answers  

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what should be the BDV value Of 11/132kv power transformer

3 Answers  

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A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 Answers  

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what is the concept of star delta starter?

7 Answers  

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What are the special protection given for high capacity Motor, more then 10mw

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Construction of ac motor?

1 Answers  

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