Current Transfomer (CT) ratio setting on energy meter
Current Transfomer (CT) ratio setting on energy meter
(OP)
I am using a smart energy meter which allows me to set the CT ratio among other parameters. I am using 50/5 ratio AC CT's. For the meter to do the kwh calculation correctly, I believe I have to set primary CT ratio to 50 and secondary CT ratio to 5. Now, if I have two rounds of the same 120 volt wire passing through the same CT, then I would set secondary ratio to 100. My question is, will this be equivalent to have just one round of wire through the CT and the primary ratio set to 50 , i.e the kwh calculated by the meter will still be right and I would'nt have to do any manipulations on the values obtained from the meter.
Meter Data sheet:
http://www.elmeasure.com/downloads/pg_5310.pdf
Meter Data sheet:
http://www.elmeasure.com/downloads/pg_5310.pdf






RE: Current Transfomer (CT) ratio setting on energy meter
One pass- 50:5, 50 Amps primary = 5 Amps secondary.
Two passes, 25 Amps primary = 5 Amps secondary.
Bill
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"Why not the best?"
Jimmy Carter
RE: Current Transfomer (CT) ratio setting on energy meter