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nithinollur
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Join Date: Sep 2008
Location: kerala
Posts: 3

Electrical Components

07/26/2009 9:09 AM

1,why there is huge sound while operating air break circuit breakers

2why d.c is given to relays

3why reactors are conected in substation

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Anonymous Poster
#1

Re: Electrical Components

07/26/2009 11:15 AM

Do you need help with your homework or something?
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jack of all trades
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#2

Re: Electrical Components

07/26/2009 3:29 PM

1. There isn't unless you are talking about circuit breakers employing compressed air to blow the arc out when the breaker opens under load.

2. World standard + safer than 110V or 230V AC.

3. Because a substation needs a little inductance to work properly.

Are these homework questions or just general interest?

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biswanath.das
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Location: Kolkata, India
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#3
In reply to #2

Re: Electrical Components

07/27/2009 1:52 AM

Reactors also used to limit fault current flow wherever required.

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