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6.6kv vcb


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#1 lalmehal

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Posted 04 December 2005 - 09:31 AM

hello sir,
I want to know whether,6.6kv VCB of unearthed system can be used in earthed system?why?

thank you.

#2 johnbose

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Posted 13 December 2005 - 10:50 AM

Yes . 6.6Kv VCB of unearthed system can be used for earthed system. The criteria is the insulation level for which the VCB is manufactured which will be available on the name plate. Also in unearthed system in case of a Phase fault, the voltage between earth and a healthy phase will be root three times more than in case of an earthed system. I can give only these comments woth the available information in the post

#3 lalmehal

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Posted 16 December 2005 - 08:08 AM

can 6.6kv vcb of unearthed system be used on 11kv solidly earthed system?

#4 johnbose

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Posted 24 December 2005 - 01:44 PM

Need the exact name Plate details of the VCB. I think the Manufacturer would be the right person to clarify this




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