Answer / sambalpur

If Kva rating it's depends upon the temp up to which it can whistand

Generaly 75'c

For more Kva more current so more copper
Nd for same copper with increasing Kva cooling needs to be change ie OnAn to OfAf

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

7 Answers   IOCL,

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why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

0 Answers  

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What is the polarization index value ? (Pi value)and simple definition of polarization index ?

0 Answers  

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high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

0 Answers  

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Please give me a solid reason there are 2 ELCB's If we take Phase from ELCB NO:1 an Netural from ELCB N:2 why ELCB is tripping when we connect the Load?please brief me with detail

3 Answers  

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TRANSFORMERS WITH DC SUPPLY

0 Answers  

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what will be project cost for 100 kv transformer connection under oyt scheme.

0 Answers  

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160 kw motor running use 2R* 150 SQ mm cable

0 Answers   ID,

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What are the disadvantages if neutral current exists in grounded star transformer distribution system?

1 Answers  

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What is the selection process of breakers. Can any one please give a formulation on same?

0 Answers   Sterling Wilson,

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Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

4 Answers  

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why should we place 9KV lightning arrestors in 11KV substation ?

9 Answers   DOL, ISRO, Matrix,

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