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CVT accuracy for different loads

CVT accuracy for different loads

CVT accuracy for different loads

(OP)
Hi everybody
As we know in IEC mentioned that because of keeping the accuracy,load of CVT should be 0.25% to 100% nominal burden of CVT anf If the load is less than 25% nominal burden,accuracy of CVT will reduce.I would like to know that is there any relashin beween load and accuracy,e.g if the burden of CVT is 10VA with accuracy 0.5+3p and our load is 1 VA,then according to IEC the accuracy will reduce,Is there any relation that shows us that how much accuracy reduced and what will be the accuracy in this case?

RE: CVT accuracy for different loads

Hi.
Please see attached thread on the topic.
thread238-243315: VT, PT load.
And of course read document is attached by Marmite.

Best Regards.
Slava

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