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Single-phase residential energy meter missort checking method

An electric energy meter and resident technology, applied in the direction of measuring electricity, measuring electricity variables, measuring devices, etc., can solve problems such as increasing electricity bills, increasing user load, and deducting more electricity bills, reducing customer losses, reducing complaints, and reducing investment. Effect

Active Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first way is to conduct a door-to-door investigation by shutting off the overall power of the meter box and then sending power one by one. This method needs to cut off the power to all users in the meter box, which is not allowed by relevant laws and regulations. As users' awareness of rights protection becomes more and more It is unrealistic to be strong today
The second way is to increase the load of the user, and check by observing the change of the power of the meter before and after the load (dial speed or pulse speed). It is not advisable to increase the cost of electricity

Method used

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  • Single-phase residential energy meter missort checking method
  • Single-phase residential energy meter missort checking method

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] 1. First, analyze the reasons for the following single-phase residential electric energy meters to be connected to one another

[0018] figure 1 It is a schematic diagram of multi-meter meter box wiring (taking two meter positions as an example). After the main power switch of the meter box is closed, the power is distributed to the electric energy meters of each household through the zero line row and the phase line row. , A unipolar isolating switch is added to the incoming side of the phase line of the electric energy meter to control the user to stop power transmission, and the outgoing line of the electric energy meter is connected to the customer's air switch, so that the customer's load can use electricity normally.

[0019] Under normal circumstances, the customer's energy meter and air switch correspond to the custom...

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Abstract

The invention discloses a single-phase residential energy meter missort checking method. The method adopts a zero line shunt method for checking, a wire or a cable is used for being sequentially in short circuit connection with a zero line row or a client load-side zero line, the wire carries out shunt on current of the zero lines, the current of the zero line at each part in the same loop after short circuit is reduced to be half the original, an air switch and an energy meter in actual connection relationship with the client are found out in the method, the air switch and the energy meter are compared with an air switch and an energy meter marked to belong to the client and compared with a marketing business application system archive, and missort exists in the case of inconsistency. Whether missor exists in the energy meter and the specific missort situations can be quickly checked only by using one wire and a common tong-type ammeter in the condition of not cutting power and not increasing load. The method is simple and practicable, few in devices, little in investment, and obvious in effects.

Description

technical field [0001] The invention relates to a single-phase resident electric energy meter serial checking method. Background technique [0002] With the construction of the smart grid, the installation and replacement of smart energy meters have been carried out nationwide, and a large number of low-voltage single-phase residential users generally use single-phase multi-meter electric energy meter boxes, and multi-household electric energy meters are centrally installed in the meter boxes. Meters and control switches are prone to collusion, that is, other people use electricity and I pay the electricity bill, which leads to errors in metering and electricity bills, brings losses to electricity customers, and seriously affects the image of power supply companies. In this article, the serial connection refers to the connection between the electric energy meter and the circuit breaker (control switch), between the circuit breaker and the internal line of the user. [0003]...

Claims

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Application Information

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IPC IPC(8): G01R31/02
Inventor 赵喜云刘连岐刘雪涛
Owner STATE GRID CORP OF CHINA
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