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Anonymous Poster

Switchgear - Overload and Short Circuit Current

08/20/2010 7:22 AM

Hi,

Can any one suggest me the new technology which you have come across in Circuit breakers. Normally the circuit breakers will be responding for overload and Short circuit current which will be taken care by (Bimetal for overload & Magnetic release for SC current).
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TonyS
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#1

Re: Switchgear

08/20/2010 7:34 AM

Do a Google search you'll find plenty

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JRaef
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United States - Member - New Member Engineering Fields - Power Engineering - New Member

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#2

Re: Switchgear - Overload and Short Circuit Current

08/20/2010 1:03 PM

Define what size you are referring to. "Circuit Breaker " can mean anything from 0.1A to 10,000A and there are very significant differences in the technologies available.

For most MCCBs under 100A, the bi-metal thermal and magnetic plunger trip mechanism is tried, true and extremely cost effective. Above that there may be reasons you want to consider solid state trips, and above about 1000A, almost all MCCBs and ACBs are now going to have solid state tripping systems.

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Anonymous Poster
#3

Re: Switchgear - Overload and Short Circuit Current

08/20/2010 11:56 PM

I am seeking for new technology adapted in release part (both Thermal and Magnetic) of miniature circuit breakers (MCB) upto 125A rating.
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JRaef
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#4
In reply to #3

Re: Switchgear - Overload and Short Circuit Current

08/22/2010 3:53 PM

Why? What about it needs improvement in your opinion?

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rockraiden
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#5

Re: Switchgear - Overload and Short Circuit Current

08/22/2010 9:25 PM

...calculate your kilo-Ampere..look into catalogues..from there you can have your guide in choosing your CB's..

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SHAMITHGAMBHIR1
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India - Member - design engineer Engineering Fields - Electrical Engineering - New Member United Arab Emirates - Member - New Member

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Location: dubai,mangalore,bangalore.....
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#6

Re: Switchgear - Overload and Short Circuit Current

08/24/2010 4:58 AM

http://www.schneider-electric.com/documents/contractors/en/shared/training/discovercompactnsx1epart-en-1108.exe

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Anonymous Poster (1); JRaef (2); rockraiden (1); SHAMITHGAMBHIR1 (1); TonyS (1)

Previous in Forum: VFD Energy Saving   Next in Forum: electrical
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