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My requirement is 1VA,50/5A Current Transformer for
Metering .If I select 15VA , 50/5A CT.Is there any
possibility of Technical Problem ?
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Answer Posted / roy
Hi ,
Yes there is . and a highr rated VA is never recommented
for metering ( again it depends the accuracy but still not
used as per IEC)
Note:The accuracy class will not be guaranteed for burdens
above rated burden or below 25% of the rated burden.Check
IEC 60044
Amd more interstingly , we are allowing or excepting to
saturate this metering core during fault to protect the
metering Equipment reff. IEC 44
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