Main Metering System and Check Metering System Requirements Clause Samples

Main Metering System and Check Metering System Requirements. 1.1 The Main Metering System and Check Metering System shall consist of a single set of three current transformers and potential transformers feeding both a primary and a backup three phase four wire metering instrument. 1.2 The Main Metering System and the Check Metering System shall be designed such that the overall error of the installation, (including instrument transformers, wiring, and metering instruments) shall be no less or greater than two tenth of a percent (±0.2% for power flows through the metering installation. 1.3 The Main Metering System and Check Metering System shall be selected to have rated error no less or greater than two tenth of a percentage (±0.2%) over the equivalent load range.
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