Three-phase intelligent watt-hour meter inspection device and method

Abstract

The invention relates to a watt-hour meter inspection device and method, in particular relating to a three-phase intelligent watt-hour meter inspection device and method. The existing watt-hour inspection device has long inspection time, and needs an extra instrument for inspecting the power consumption of a watt-hour meter; the existing watt-hour meter inspection device has low efficiency and can inspect only one watt-hour meter for one time; and in addition, the existing watt-hour meter inspection device is inability of testing the cost-control trip of the intelligent watt-hour meter. The three-phase intelligent watt-hour meter inspection device comprises a standard clock, a three-phase program-controlled source, a standard watt-hour meter, error calculators, power consumption testers and a communication module. The inspection device provided by the invention is characterized by comprising trip monitoring units, wherein the inspection device has a plurality of testing work positions; one power consumption tester, one trip monitoring unit and one error calculator are arranged on each testing work position; each error calculator is provided with a counting calculation module; and the standard watt-hour meter is used for metering an output module. The three-phase intelligent watt-hour meter inspection device is rapid in inspecting watt-hour meters, and can inspect the power consumption and the cost-control trip.

Description

technical field [0001] The invention relates to an electric energy meter inspection device and method. Background technique [0002] At present, in the smart grid, the smart energy meter has been endowed with many new functions and plays a very important role. According to the technical specifications of the three-phase smart energy meter, it is necessary to test its active energy measurement error, reactive energy measurement error, and clock error, and to assess its own power consumption, and to test the cost control function. [0003] Ordinary watt-hour meter inspection devices are serially performed for the active energy error inspection, reactive power error inspection, and clock accuracy inspection of the electric energy meter, and the inspection time is long; for the inspection of the power consumption of the electric energy meter, additional instruments are required. Only one watt-hour meter can be tested, which is inefficient; there is nothing that can be done for ...

AI Technical Summary

Problems solved by technology

The standard watt-hour meter can output active energy pulses and reactive energy pulses at the same time, and the error calculator can simultaneously count and calculate the errors of the three sets of input pulses, improve the detection speed, and solve the problem of the traditional watt-hour meter inspection device for the three-phase smart watt-hour meter. Routine inspection items such as active / reactive energy measurement error and clock error can only be inspected item by item, which is inefficient

Images