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 .

What is the percentage loss for aluminium wire for HT line more than 11KVa

0 Answers  

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which of the following elements is not present in stainless steel

0 Answers   LASA,

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compressor compresses air means exactly what happens?

2 Answers  

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How to calculate the TR (AC's)

4 Answers  

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3 Answers  

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what are the various types of towers used in transmission line

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0 Answers  

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what is vtg limit of earth and neutral at transformer side?

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0 Answers  

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what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 Answers  

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what is neutral plane shift?

1 Answers  

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the relationship between phase and line voltages in a 3 phase generator is expressed in what formula?

4 Answers   Omicon,

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