what is ripple component in ac supply?

2 Answers  

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any calculation method for decide cable size for current?

1 Answers  

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

3 Answers  

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in 50 mw generator if field is open in full load running condition what happen and for protection which relay used?

5 Answers   century,

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When are the directional relays used?

0 Answers  

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What are the material used for resistor?

0 Answers  

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How to take vector group test of a transformer? Suppose we dont know the vector group of transformer, how to check its vector group through test? I have 3 transformer DYn11 & DYno& Ynd11, how to confirm its vector group?

1 Answers  

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What is the difference between air & vaccum circuit breakers?

2 Answers   IOCL,

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why we grounding the neutral of a transformer?

3 Answers   GAS,

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what is the reason for drop in freq. from 50 hz at generating side to 49.8 ,49.6 etc.at receiving side???

2 Answers  

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what are the advantages of Horizontal isolation breakers v/s vertical isolation breakers in medium voltage switchgear class.

1 Answers   NNN,

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what r the preventive maintenance of air compressor

1 Answers   Jindal,

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