A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?

0 Answers   Spectrum,

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compressor compresses air means exactly what happens?

2 Answers  

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Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers  

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I have a 25kVA three phase transformer on our property. Will this transformer be large enough to run a large home with swimming pool, spa, 2 off full size reverse cycle air conditioners to service a 100 square house (10,000 square feet or 930 square metres)and the general power consumption of this house without upgrading to a 63kVA transformer.

1 Answers  

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Why dnt we generate 5-ph or 7-ph supply like as 3-ph supply

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How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?

0 Answers   ONGC,

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Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

0 Answers   HPCL,

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can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

0 Answers   RD Square,

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1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

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What you have to see in transformer after week, month?

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why the indian frequency is 50 hz & U.S.Frequency of 60 hz

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flush point of transformer?

2 Answers  

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