Why earthing transformer used in Distribution Sub-Station?

3 Answers  

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what is the earthing condition between earth & phase.

3 Answers   ABB,

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I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

0 Answers  

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why did lightening arrester rod probe sharp?

2 Answers  

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what is diffrence between primary & secondry transformer?

3 Answers  

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Where earth point should provided in Ships or Submirines.

2 Answers   SSC,

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How to calculate energy stored in an inductance?

0 Answers  

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why characteristics of overcurrent relay is time-->psm instead of time-->current?

0 Answers   ABB,

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IF we have 500kva transformer 11.0/0.415V, 50Hz. How to calculate the current on HT & LT side, how can we consider for its breaker (HT & LT both)? You are requested to solve the question herewith.

3 Answers   Bhutan Power Corporation,

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how can we calculate cable size

1 Answers  

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Explain Circuit Breaker Trip Characteristics in detail.

0 Answers   L&T,

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What is negative phase sequence?

7 Answers   Hindalco, Universal Associate,

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