Answer / c r satpathy

The trip circuit supervision relay is used for supervising important control circuits such as circuit-breaker
and disconnector control circuits and signalling circuits in power electrical installations. Generally one supervision relay is needed per circuit to be supervised. If several branches of a circuit are to be supervised, the required
number of relays can be connected to the same control circuit. Continuous monitoring of circuit-breaker trip circuits and other essential control circuits. Preset operate time preventing unwanted alarm signals at circuit-breaker operation

what is ideal transformer?

5 Answers  

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When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity.

5 Answers   TATA,

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If one d.g. is unable to take full load of system, then second d.g. will take care of partly Load.for this condition RPM of both DG set should be equal.By using Synchronization panel RPM of dg sets are match, is it true?

1 Answers  

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What is the difference between earth and neutral

4 Answers   ABB, Tamboli Engineers,

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In liquid rotor starter how PH valve should be maintained.

1 Answers  

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why voltage swells and dips in transmission line?

2 Answers  

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Why we are putting off the APFC(automatic power factor control) panel while the generator is running?

4 Answers   National Steel,

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When lag/lead/lag-lead compensation is employed?

0 Answers  

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why generally transformer are in star to delta or delta to star used?

8 Answers   ABB,

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what is the meaning of Air condition "TON"

3 Answers  

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Why have the transformer one earthing to their neutral? Why have the transformer many earthing to their body?

1 Answers  

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can induction motor becomes as a generator. if yes how it is possible. if there is a squirrel cage rotor.

6 Answers  

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