Answer / tamil

CB has a relay or contactors in it, which works on the
principal of electro-mechanical(which means when Voltage is
applied to the coil contact will change its position from NO
to NC)

Answer / shinde kv

basic principle of circuit breaker is contact make and
break in load condition without with arc quenching.yes it
has electro-mechanical principle

Answer / jairaj shetty

a circuit breaker , in its simplest form is a thermo
electric device . when the rated current is exceeded , the
thermal device , made up of bimetallic strip heats up and
bends , thus tripping the mechanically spring loaded
switch .
the other form of electro magnetic circuit works by
activating a magnetic relay instead of a bi metallic trip
device .

a transformer can beb used as aload?give discription

2 Answers   Esses Eltech Systems,

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why two contacts(in series) are using in closing circuit

3 Answers  

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In step down transformer (415/200V),mistakenly secondary side is connected to 415V for some hours, what would be result of this condition?

19 Answers   Essar, GAIL, Vizag Steel,

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What is the electrical difference between Earthing Switch (ES) and Maintenance Earthing Switch (MES)?

1 Answers  

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one split ac how can told of this ac which Tr tell me us

0 Answers   Wipro,

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WHATS THE NEED OF CT INPUTFOR AN VAPM TYPE METERING PT FUSE FAILURE RELAY

1 Answers  

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In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

0 Answers  

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what is the safety of voltage power transformer(2250KVA0

0 Answers   Emerson, Jindal,

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what is meant by dedicated earthing?

1 Answers  

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difference between substation & grid substation?

2 Answers   GMR,

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Can anybody tell me the Electrical IS rules website?

1 Answers  

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how i calculate the size in mm of the LT 4 core cable for 100 HP inductive motor pump

1 Answers  

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