Method and system for correcting false wiring of three-phase four-wire watt-hour meter and watt-hour meter

Abstract

The invention is applicable to the field of electric power and provides a method and system for correcting false wiring of a three-phase four-wire watt-hour meter and the three-phase four-wire watt-hour meter. The method for correcting false wiring of the three-phase four-wire watt-hour meter comprises the steps of: receiving a voltage phase angle, a current phase angle, a voltage current phase angle, a voltage amplitude and a current amplitude collected by the three-phase four-wire watt-hour meter; forming a vector diagram according to the voltage phase angle, the current phase angle, the voltage current phase angle, the voltage amplitude and the current amplitude; and judging whether a wiring fault exists according to the vector diagram, if so, searching a pre-stored false wiring database to determine whether the vector diagram exists, if not, obtaining the type of wiring fault corresponding to the vector diagram, and issuing a correcting instruction to the three-phase four-wire watt-hour meter according to the type so as to instruct the three-phase four-wire watt-hour meter to correct false wiring. The technical scheme provided by the invention has the advantages of detecting wiring faults remotely and correcting wiring faults remotely.

Description

technical field [0001] The invention belongs to the field of electric power, and in particular relates to a method, system and electric energy meter for correcting wrong wiring of a three-phase four-wire electric energy meter. Background technique [0002] The three-phase four-wire electric energy meter needs to calculate active power, reactive power and apparent power, and integrate them to realize active electric energy metering, reactive electric energy metering and apparent electric energy metering. [0003] The wiring of the three-phase four-wire watt-hour meter is all on-site manual wiring, and on-site manual wiring is prone to wiring errors. The technical solution of the prior art is to manually correct the wiring errors of the three-phase four-wire watt-hour meter, and it is impossible to remotely correct the three-phase four-wire watt-hour meter. The wiring of the four-wire watt-hour meter is wrong. Contents of the invention [0004] The purpose of the embodiment...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for correcting the wrong wiring of a three-phase four-wire electric energy meter, which is used to solve the problem that the prior art can only correct the wrong wiring of the three-phase electric energy meter manually on site

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