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Anonymous Poster

charging Current .....differential Relay

01/05/2011 8:07 AM

Dear sir's,

I need your help, to calculate the charging current of the underground cable to set the Line Differential Relay Points.

cable = 240 mm2 , XPLE/PVC/SWA

Runs = 4 runs each phase.

Volatge = 13.8 Kv

Ct ratio = 1000/5

Legth = 800 meter (directly burried).

Please can anyone provide me the formulae.

thanks in advace.
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Anonymous Poster
#1

Re: charging Current .....differential Relay

01/05/2011 9:05 AM

Homework?
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Anonymous Poster
#2
In reply to #1

Re: charging Current .....differential Relay

01/05/2011 11:24 AM

nope, need some guidance, if you are willing to provide....thanks
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Anonymous Poster
#3

Re: charging Current .....differential Relay

01/05/2011 1:57 PM

This is complicated subject, Man. Search ...you will find it. Ask... you will get it. Best way is to ask the Relay supplier/manufacturer.
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