Current transformers. (A) All CTs for Type 1, 2 and 3 Meters must meet the following criteria: Type of Meter Relevant Standard Minimum Class Accuracy No. of sets Usage 1 IEC 6189-2 0.2s 2 1 set of CTs dedicated to the Main Meter only and 1 set supplying the Check Meters. Check Meter CTs can be used for other purposes provided that such Check Meter CTs comply with the accuracy requirements in paragraph 2.2 of these TSRs. 2 IEC 6189-2 0.2s 1 CTs must be dedicated to the CfD Settlement Activities, supplying both Main Meters and Check Meters. An additional set of CTs may be fitted for the Check Meter which may also be used for other purposes provided that Type of Meter Relevant Standard Minimum Class Accuracy No. of sets Usage such Check Meters comply with the accuracy requirements in paragraph 2.2 of these TSRs. 3 IEC 185 0.5 1 1 set of CTs for Main Meters and Check Meters’ CfD Settlement Activities purposes, but may also have other uses if the overall accuracy requirements in paragraph 2.2 of these TSRs are met.
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Sources: Private Network CFD Agreement, Private Network CFD Agreement, Private Network CFD Agreement