what is back trip and re-trip in protection schemes? why these two? define me the exact function of these two?

1 Answers   Siemens,

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Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.

0 Answers   ARDE,

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When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?

6 Answers   APNPDCL,

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what is negative phase sequence

1 Answers  

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what is a,b,c,d checks diesel generator?

1 Answers   AFMC,

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A simple Question from all.... If Voltage drops then its rated value what will be effect on a Residential load? similarly if voltage rises from its rated value then what will be effects on a load? i know if voltage drops the equipment or device draws more current then its rated what are other reasons ? thanks in advance for ur time.......

1 Answers  

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why dc is not given to transformer

4 Answers  

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how to determine motor size for a fan application?

0 Answers   EDC,

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how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc

2 Answers  

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what is the difference between electrical wire and electrical conductor?

4 Answers  

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How do ACB are maintenance, what are the problem occurred in ACB

1 Answers   KIML,

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What will happen if the voltage in my house drops from 220V to any lower voltage?

0 Answers  

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