Time-sharing and phase-sharing electric quantity recorder

Abstract

The invention discloses a time-sharing and phase-sharing electric quantity recorder, and belongs to the technical field of electric quantity recorders, the time-sharing and phase-sharing electric quantity recorder comprises a current and voltage acquisition interface, a time-sharing and phase-sharing metering unit and an operation platform, the current and voltage acquisition interface is composed of a voltage interface and a current interface, and the time-sharing and phase-sharing metering unit is a newly developed multifunctional electronic electric energy metering device. Four-quadrant active and reactive electric quantity data, time-sharing rate electric quantity data and split-phase electric energy data are provided, and the operation platform is an HMI. According to the invention, when the metering electricity meter stops working, the device can meter the electricity of a user, namely forward and reverse active electric quantity, four-quadrant reactive electric quantity, each-phase electric quantity, time-sharing rate electric quantity and the like, and the electricity is displayed on one LCD screen and can be converted into primary side electric quantity data. The electric quantity can be provided for an upper computer for acquisition through a network, an accurate basis is provided for electric quantity replacement, and the system is used for accurately metering the lost electric quantity and recycling the electric charge when an on-site user carries out live replacement on the electric energy meter.

Description

technical field [0001] The invention belongs to the technical field of electricity recorders, in particular to a time-splitting and phase-splitting electricity recorder. Background technique [0002] In the measurement operation and maintenance work, many links such as periodic rotation, fault replacement, verification replacement, etc. need to replace the electric energy meter without power failure. In order to ensure the uninterrupted power consumption of users and ensure the quality of power supply, it is often necessary to change meters on site. During the meter replacement period, the user uses electricity normally, but the electric energy meter cannot achieve measurement during the meter replacement period, resulting in power loss. During this period, the lack of electric energy is usually made up by the power supply bureau and the user through negotiation on the amount of electricity. The supplementary method can be obtained through the historical power consumption ...

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