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Field intelligent single-phase electric energy meter fault diagnosis instrument

A technology of fault diagnosis instrument and electric energy meter, which is applied in the direction of instruments, measuring electric variables, measuring devices, etc., can solve problems such as complicated wiring, and achieve the effect of improving work efficiency

Inactive Publication Date: 2021-05-04
HENAN XJ INSTR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an on-site intelligent single-phase electric energy meter fault diagnosis instrument to solve the problem of complex wiring caused by the need to connect an external load when the user does not use electricity

Method used

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  • Field intelligent single-phase electric energy meter fault diagnosis instrument
  • Field intelligent single-phase electric energy meter fault diagnosis instrument
  • Field intelligent single-phase electric energy meter fault diagnosis instrument

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto.

[0020] This on-site intelligent single-phase watt-hour meter fault diagnosis instrument can read the watt-hour meter to be tested at the same time by measuring the voltage, current, active power, reactive power, power factor, etc. The obtained operating data of the power grid. After receiving the test command, it can use the built-in fault library algorithm to compare and calculate the read operating data of the electric energy meter to be tested and the grid data measured by itself, and measure the error and accuracy of the on-site calibration of the electric energy meter under test. Spend.

[0021] Generally speaking, during the on-site test, the user needs to have a ...

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Abstract

The invention provides a field intelligent single-phase electric energy meter fault diagnosis instrument. According to the field intelligent single-phase electric energy meter fault diagnosis instrument provided by the invention, when a user does not use electricity or a current signal acquired by a current clamp is almost zero, the fault diagnosis instrument can automatically close a magnetic latching relay, an output end of an isolation power supply unit generates a virtual load current, and current sampling can be completed by an intelligent single-phase electric energy meter to be tested and the fault diagnosis instrument. The field intelligent single-phase electric energy meter fault diagnosis instrument can solve the problem that wiring is complex when a user does not use electricity and needs to be externally connected with an electricity load, meet the requirement for on-site fault diagnosis in time, and greatly improves the working efficiency of on-site electric power operation and maintenance personnel.

Description

technical field [0001] The invention belongs to the field of electric energy measurement, in particular to an on-site intelligent single-phase electric energy meter fault diagnosis instrument. Background technique [0002] With the popularization and application of smart single-phase electric energy meters, the workload of on-site operation and maintenance of intelligent single-phase electric energy meters is also increasing. At present, there is no device for fast and effective detection of smart single-phase electric energy meters. Once the on-site intelligent single-phase electric energy meter fails, the problem is usually solved by dismantling the on-site intelligent single-phase electric energy meter and replacing it with a new intelligent single-phase electric energy meter. When there are problems such as line interruption, collector failure, and main station server failure in the communication of smart single-phase electric energy meters, a large number of intelligent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 谷战垒刘永光卢利军王琰徐晓娜孙宾武珠琳杨琳
Owner HENAN XJ INSTR
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