Electric-power metering monitor

Abstract

This invention relates to the electricity metering monitoring device, which consists of a shell, the second line detectors, panels and components, voltage detector components, instructions components. The referred shell equipped with the second line detectors. Both of detections are through the secondary side terminal phase of the second line detector. Voltage detector components detect the threemain phase lines and transmit the measured data to respective panel components. Fault interface components are installed in panels. Instruction components are set on the shell by panel components. The voltage detector test components are divided into three groups, so that it can identify any failures of the phase accurately. As a way phase lines, a short circuit, the current in the first line through the panel components is not in proportion to the load current reflected in the second-line or second line current is not flow meter instructions at all, can be automatically triggers parts metering components, alarm system, which will be achieved in the circumstances of a line anomalies.

Description

technical field [0001] The invention relates to a power meter monitor for monitoring electricity metering in the power industry. Background technique [0002] After retrieving relevant patent documents, no electric power metering and monitoring instrument with the same structure as the present invention has been retrieved yet. Existing electricity metering instruments in the electric power industry, in addition to intentional stealing of electricity to affect the measurement, the voltage line of the meter voltage loss, open circuit, and the load current passing through the primary line cannot be reflected in proportion to the secondary line or the current of the secondary line is loose. Faults such as all flow-through ammeter measurement, current transformer parameter change, etc. will affect the accuracy of measurement. Contents of the invention [0003] The object of the present invention is to provide a power metering monitor for monitoring the metering system of the p...

AI Technical Summary

Problems solved by technology

Existing electricity metering instruments in the electric power industry, in addition to intentional stealing of electricity to affect the measurement, the voltage line of the meter voltage loss, open circuit, and the load current passing through the primary line cannot be reflected in proportion to the secondary line or the current of the secondary line is loose. Faults such as all flow through the meter measurement, current transformer parameter change, etc. will affect the accuracy of measurement

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