A device and method for checking households before installation of single-phase residential electric energy meters

Abstract

A single-phase resident electric energy meter before the installation of a household screening device and screening method, the screening device is mainly composed of two parts: an external power module and a photoelectric response module; the external power module is composed of a lithium battery pack and a double-pole switch, and the lithium battery The group includes: a charging circuit composed of an input charging control circuit, a battery protection circuit, and a lithium battery connected in sequence; a discharge circuit composed of an output boost control circuit, a battery protection circuit, and a lithium battery connected in sequence; the double-pole switch is divided into left and right A group of switching ports, wherein one group of switching ports is connected to the input charging control circuit, and the other group of switching ports is connected to the output boosting control circuit. The troubleshooting method is: first switch the double-pole switch of the external power module to the switching port connected to the output boost control circuit, and connect the power outlet terminal of the electric energy meter, and then connect the photoelectric response module to the load of the electric energy meter On the connection port, a closed loop can be formed after pulling the air switch.

Description

technical field [0001] The invention relates to a device and method for checking single-phase household electric energy meters before installation, and belongs to the technical field of monitoring the installation and use of electric energy meters for residential households. Background technique [0002] Existing energy meter string household investigation technology is mainly aimed at users who have already installed meters and use electricity. The inspection instrument and the account checker are the core, and cooperate with the customer information positioning device to check the situation of collusion. The first investigation method is simple and convenient, but it will affect the normal electricity consumption of customers or lead to an increase in electricity bills, which is likely to cause disputes. The second investigation method measures the relevant electrical parameters, analyzes and judges the corresponding relationship between the centralized electric energy me...

AI Technical Summary

Problems solved by technology

The first investigation method is simple and convenient, but it will affect the normal electricity consumption of customers or lead to an increase in electricity bills, which is likely to cause disputes

The second investigation method measures the relevant electrical parameters, analyzes and judges the corresponding relationship between the centralized electric energy metering box and household meters and the results of the chain of households under the premise of no load jump and no increase of load, which simplifies the process and avoids disputes, but the method is complicated and the equipment Large size, high investment cost, low economic efficiency and promotion value

The above-mentioned two energy meter serial household investigation technologies are aimed at users who have already installed meters and used electricity. At present, the method of determining the corresponding relationship between meter households before installing meters has not been involved.

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