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niks_ele
Active Contributor

Join Date: Sep 2011
Posts: 11

Switchger Rating & MVA Available

09/15/2011 2:31 AM

Hi,

Anyone can help me out that in market Max. Switchger rating(I ka) available for individual voltage level. i.e. for 11KV -50MVA.
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electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#1

Re: Switchger Rating & MVA available

09/15/2011 7:00 AM

I think in 11kV Switchgear one can get an interrupting rating of 13.1kA or 18.1kA or 25kA or 40 kA. I am not very sure if 50kA Breaking Capacity breakers are available at 11kV.
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niks_ele
Active Contributor

Join Date: Sep 2011
Posts: 11
#2
In reply to #1

Re: Switchger Rating & MVA available

09/15/2011 7:18 AM

Yes its available.
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soebfatehi
Power-User

Join Date: Jun 2009
Posts: 223
Good Answers: 15
#3
In reply to #2

Re: Switchger Rating & MVA available

09/15/2011 7:49 AM

what is the question?
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niks_ele
Active Contributor

Join Date: Sep 2011
Posts: 11
#4
In reply to #3

Re: Switchger Rating & MVA available

09/15/2011 8:04 AM

I need I(KA) of the Switchgear Voltage level vise.

i.e.11KV-50MVA, 132KV-??
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mmofu
Member

Join Date: Sep 2011
Posts: 6
#5
In reply to #4

Re: Switchger Rating & MVA available

10/07/2011 7:07 AM

If 50MVA is the fault level, then fault current at 11kV is 2.62kA and at 132kV it is 0.22kA.
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electricalexpert65 (1); mmofu (1); niks_ele (2); soebfatehi (1)

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