what type of relay has to be used for tripping the circuit from mains when a fault occur in a machine

3 Answers  

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What are the probable causes for failure of heating elements

4 Answers   BARC,

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What is the method to solve circuit using source transformation?

0 Answers  

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What type of wiring series or parallel is used for conventional and addressable type FAS & why?

0 Answers  

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If not maintained 3 phase clearance,what happened ?

2 Answers  

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What is the mulplying factor of trivector meter (11kv) having ct ratio 100/5 amp.

2 Answers  

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How to control speed of DC motor with AC power?

7 Answers   vguard,

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how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

0 Answers   ONGC,

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how you can select circuit breaker for 2000kva transformer?

9 Answers   TATA,

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If the rotor pf of a 3 phase induction motor is .866, then what is the phase displacement between stator and rotor magnetic field 1)30,2)120,3)150,4)90 please justify....

2 Answers   GATE,

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What is relation between mu(nought) and epsilon(nought)?

0 Answers  

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what is safety of ups

1 Answers   JLL,

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