What is the use of iron core in a transformer?

0 Answers  

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Why different values of B’s (magnetic flux density) are chosen for DC machines and Induction Motors?

1 Answers  

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from which subjects most of the technical que will b asked for hpcl(electrical).pls help me

0 Answers   ABB, HPCL,

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How can transformer oil be used in transformers with voltage rating above its breakdown voltage?

2 Answers  

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when motor taking high amp what happen.

4 Answers  

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Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT? 

0 Answers  

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why transformer not used to starter

1 Answers  

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why is used for starters for staring motors?

6 Answers   Amrapali, L&T,

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why you don not show protection and type of isolation in key single line diagram?

0 Answers  

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What is the similarity and what is the difference between relays and PLC?

3 Answers   NTPC,

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before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

0 Answers  

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should Dy11 and Dy1 group can be operated in parallel??????

1 Answers  

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