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Distribution network line fault metering device based on voltage characteristics

A technology of line fault and voltage characteristics, which is used in measurement devices, measurement of electrical variables, and electrical connection testing. Effect

Active Publication Date: 2021-04-13
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The metering device of the existing metering method has many connected devices, and the connection points are more complicated, and the terminal blocks are prone to virtual connections and wrong connections. Professional master craftsmen will also check on-site because of the uncertain nature of the user's load or light load. Due to unqualified power quality and other reasons, it is impossible to judge whether the wiring of the metering device is correct through equipment such as phase sequence meters and phase voltammeters, or it is wrong to make a wrong judgment and change the correct wiring incorrectly, resulting in measurement errors, causing user electricity bills to be supplemented and metering disputes and other defects

Method used

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  • Distribution network line fault metering device based on voltage characteristics
  • Distribution network line fault metering device based on voltage characteristics
  • Distribution network line fault metering device based on voltage characteristics

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Embodiment 1

[0035] This embodiment provides a distribution network line fault metering device based on voltage characteristics, its structure is as follows Figure 1 to Figure 5 As shown, it includes a metering module, a wiring part 160 and a box module.

[0036] Among them, the metering module includes a current transformer 130, a voltage transformer 140, an electric energy meter 110, and a negative control terminal 120. The current transformer 130 is provided with two independent groups, and the electric energy meter 110 and the negative control terminal 120 respectively pass through a set of secondary Each of the loops 150 is connected to a current transformer 130;

[0037] The wiring part 160 is arranged between the electric energy meter 110, the negative control terminal 120 and the secondary circuit 150, and the electric energy meter 110, the negative control terminal 120 and the secondary circuit 150 are all connected to the wiring part 160;

[0038] Box parts, including a meterin...

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Abstract

The invention provides a distribution network line fault metering device based on voltage characteristics, two groups of metering voltage loops and current loops are respectively connected to an electric energy meter and a load control terminal, the independence of the metering loops of the electric energy meter and the load control terminal is satisfied, and real-time remote data monitoring comparison is performed on the data of the electric energy meter and the load control terminal in operation. Abnormal operation of the metering device can be found and processed in time. And meanwhile, the metering module can be quickly mounted through the mounting assembly with an embedded structure. And the connection stability of the metering module and the mounting assembly is ensured.

Description

technical field [0001] The invention relates to the technical field of transmission network maintenance equipment, in particular to a distribution network line fault metering device based on voltage characteristics. Background technique [0002] The metering device of the existing metering method has many connected devices, and the connection points are more complicated, and the terminal blocks are prone to virtual connections and wrong connections. Professional master craftsmen will also check on-site because of the uncertain nature of the user's load or light load. Due to unqualified power quality and other reasons, it is impossible to judge whether the wiring of the metering device is correct through equipment such as phase sequence meters and phase voltammeters, or it is wrong to make a wrong judgment and change the correct wiring incorrectly, resulting in measurement errors, causing user electricity bills to be supplemented and metering disputes and other defects. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/06G01R35/04G01R31/67G01R11/04
CPCG01R22/06G01R35/04G01R31/67G01R11/04Y04S10/52
Inventor 廖清阳
Owner GUIZHOU POWER GRID CO LTD
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