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Multiples of Tap Value Current

Multiples of Tap Value Current

Multiples of Tap Value Current

(OP)
Hi ,
I have a CO-11 Relay which under CT Ratio shows Value=160 and under Remarks I have
3 X 3200/(2400)/2000/(1600)/1000:5 A
The Instantanious PU is 4800.
I am confused how to project this on TCC curve and also what are the meanings of those CT ratios?
where did they get 160 from?

I appreciate any feedback on this.

RE: Multiples of Tap Value Current

It is a multi-tap CT, that part isn't a problem.  No idea where the 160 comes from since 800:5 isn't one of the listed possibilities.

RE: Multiples of Tap Value Current

(OP)
yes thats the part that confuses me too.

RE: Multiples of Tap Value Current

Have you seen the actual CTs yet or just the written description?

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