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Anonymous Poster

11 KV Cable

11/12/2009 6:31 AM

Dear all,

A 33 KV cable is laid from 4 pole structure to 33 kv switchgears. It is a new cable and tested both at factory and site and found ok. Can the same cable be used with 11 KV supply (all other equipments like switchgears and transformers being 33 KV)??

REgards

PG

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Guru

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

Re: 11 KV cable

11/12/2009 7:46 AM

You can very well use a 33kV Rated Cable in a 11kV System. But, I need some more clarifications. You say all other equipments like switchgear & transformers are 33kV; then where from you got this 11kV supply?

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Anonymous Poster
#2

Re: 11 KV cable

11/12/2009 8:36 AM

Check the current carrying capacity. (Are you the guest who does not want to pay for the 33KV connection ?)

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Guru
Engineering Fields - Mechanical Engineering - New Member

Join Date: May 2008
Location: CHENNAI, TAMIL NADU, INDIA.
Posts: 1851
Good Answers: 65
#3

Re: 11 KV Cable

11/15/2009 11:49 AM

Dear Guest,

Your question is not clear. To my mind 2 different answer-options are coming to my mind.

FOR 1st OPTION IN MY MIND:

The answer to your question is YES.

Yes, you can use the 33 kV Cable and its switch gears can be put into use for 11 kV Supply, subject to condition that AS LONG AS YOU DO NOT EXCEED THE CURRENT LIMIT for the specified size of the cable. You have not indicated the cable size.

FOR THE 2nd OPTION IN MY MIND:

In the given 33 kv system if you connect to supply of 11 kV, the out put voltage will be one-third of the volt to that of 33 kV input. This may be technically O.K., but the functioning of the equipment will suffer.

DHAYANANDHAN.S

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