Answer / inder singh

step up transformer increase the voltage and decrease the current .

Answer / naushab alam

step up transformer used for increase voltage and decrease current ,mainly step up transformer used in transmission in long distance , it is economically transmission method.

what is the CT & PT. where is it uses.what is the using that plese kindly answer me...?

4 Answers   Cap Gemini, JLL,

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what will be efficient rating of ac motor to lift a 10 kg wt of stone to 10 meter height with input 220V AC 50 Hz frequency???

1 Answers  

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What is Hot reserves and spinning reserves?

1 Answers  

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which MPU register provides the address from which the next instruction byte is to be fetch?

1 Answers  

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How do we calculate transformer oil in liter from the rating of the transformer.

0 Answers   BARC,

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can any one tell me the formula to select the thickness of wire selection according to ampere rating

2 Answers  

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how to find the torque of the single phase synchronous motor by doing an experiment

0 Answers  

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how to calculate kA rating of device?

3 Answers   Siemens, Vijai Electricals,

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Why the transformers are rated in kva?

11 Answers   Birla, NTPC, Reddy Labs, Vijai Electricals,

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What is process of anneling transformer core

0 Answers  

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The capacity of the transformer is 20/25 MVA, Ratio is 132/11 KV, Vactor group YNyno. and impedance is 10.07%. As per the calculation the secondary current is 1312.2Amps. The maximum fault current the transformer should sustain is 13.030KA. How many times the transformer should sustain the maximum short circuit current of 13.030KA over a period up 1 Year. The transformer is repaired one & 10 Years old.

1 Answers  

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5MVA TRANSFORMER SUDDENLY FAIL WITH THE PRV TRIPPING AND LARGE AMOUNT OF OIL SPREAD OUT? SO IT CAME BACK WITH THE REPAIRING WITH REASON THAT IT FAILS BCOZ OF TRANSIENT EFFECT? SO PLZ EXPLAIN HOW DOES IT HAPPENED?

1 Answers  

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