Answer / abhishek goyal

In CB mostly we have both option AC/DC SUPPLY because of
that we can use diode in circuit.
for spring charge motor we can feed both AC/DC supply (its a
Universal motor)

Answer / girish

In VCB spring charging motor will be a DC one, but control
supply is taken from 230 AC, same will be fed to Diode
bridge and then the rectified 110 Volts DC is fed to the
spring charging motor

what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

0 Answers  

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Difference between directional over current and non directional over current ?

2 Answers  

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What is the thumb rule for calculating the P.F correction Capacitor?? Say for 100 hp motor how much micro farad Capacitor is needed .... Thumb rule so quick answer wanted

9 Answers   Bhel, Dubai Group,

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1 sq.mm alluminum cable hou much current caraing capacity

5 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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use of PIR in ehv breaker

0 Answers  

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who invented active elements? plz give me the complte details of active elements...

0 Answers  

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we can conformed the vector group of the transformer. How?

0 Answers  

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how netral CT is selected (including its details specification)

8 Answers   ABB, ABC, dbpl, Mecon, Shree Engineering, Tapasya Transformers,

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In APFC panel, Why on dealy timer is used in Capacitor controlling circuit?

1 Answers  

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sir i am ece engineer.i want to job in power plant.what is the best option for me as electrical engineer or instrumentation engineer?pls reply me.

1 Answers  

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What is Isolation Transformer???

4 Answers   Emerson,

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