Voltage Transformers Requirements. Each metering point shall have a dedicated set of metering class of voltage transformers. Unless otherwise agreed upon by the Parties, all metering shall be type 3.0 element metering, and have three (3) metering accuracy voltage transformers. Voltage transformers shall meet or exceed an accuracy class of 0.3% (as defined in IEEE C57.13). The secondary of the voltage transformer shall be exclusively used for the revenue meters only, so as not to exceed the secondary burden of the stated voltage transformer’s name plate burden rating provided, however, that voltage transformers with two secondary windings, may have one winding dedicated to the revenue meters, and the other winding used for relaying purposes or for other station metering. The nameplate burden rating on either winding must not be exceeded. Voltage transformers shall comply with the minimum BIL rating as specified in standards IEEE C57.13 and ANSI C12.11.
Voltage Transformers Requirements. Each metering point shall have metering class voltage transformers. Unless otherwise agreed upon by the Parties, all metering shall be type 3.0 element metering, and have three (3) metering accuracy voltage transformers. Voltage transformers should meet or exceed an accuracy class of 0.3% (as defined in IEEE C57.13). The 115 volt secondary of the voltage transformer shall be exclusively used for the revenue meters only, so as not to exceed the secondary burden of the stated voltage transformer’s name plate burden rating.
