Answer / sheikh

Do you means over & under current protection relay and under
, over voltage relay . if yes then symplestic matter where
is need of over and under vol,protection and where is under
and over current protection.

What is an Isolation Xformer? What is the use of it?

2 Answers  

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what happens when the phase and earth wires comes in contact? and why

2 Answers  

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Meggering minimum acceptable Ohms for insulation resistance.

1 Answers   TATA, Wood Group,

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what happen when dc shunt motor field is sudden open in running condition

34 Answers   APGenco, Bhel, IIT, JMRC, TCS,

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wat is the role of reactive power in power generation?why we have maintain it.

3 Answers  

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is that any software calculator to calculate the size of cable

0 Answers   JSW,

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what is cogging and crawling

20 Answers   ABB, Ashok Leyland, Bharat Bijlee, BMRCL, MN Dastur, Siemens,

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how to calulate multiplying factor if meter ratio is /5 ampere and ct ratio is 100/5 ampere.(our supply is 3 phase 415 volts)what is multiply factor?

3 Answers   Vivek Engineers,

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why ct secondary side shortlink provided? its open what will happen?while running ?

2 Answers   Essar,

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what is static switch where it can be use?

1 Answers  

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difference btw neutral and ground?

2 Answers   ERG,

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what is the principal of ceiling fan and how it will rotates? what is the magnetic momentum produces inside the fan?

1 Answers  

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