Class Protections and Metering - CR4 Discussion Thread

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manir_b4u2002 Associate Join Date: Feb 2009 Posts: 38	Class Protections and Metering 02/17/2009 12:57 AM
	220kv/33kv SUBSTATION. Can anyone tell me why there are some rating(such as burden,knee point,Rct) difference between PS class differential CT and metering/protection 5P20 CT?
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Anonymous Poster	#1 Re: Class Protections and Metering 02/17/2009 9:44 AM
	I found this answer by Googling.
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jack of all trades Guru Join Date: Sep 2006 Location: Auckland, New Zealand Posts: 8777 Good Answers: 376	#2 Re: Class Protections and Metering 02/17/2009 1:28 PM
	Also check the previous posts and answers on CR4 regarding these questions. __________________ jack of all trades
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