Special wire clamp for voltage loop of metering device

A voltage circuit and metering device technology, applied in the direction of measuring devices, measuring device shells, measuring electrical variables, etc., can solve problems such as copper and aluminum heating, achieve improved connection methods, reliable sampling, and solve the effects of poor contact

Pending 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

[0007] 3) Heating occurs when copper and aluminum contact

Method used

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  • Special wire clamp for voltage loop of metering device
  • Special wire clamp for voltage loop of metering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: as Figure 1-Figure 2 As shown, a special line clamp for the voltage circuit of a metering device includes a pile head connection part 1 and a secondary outlet connection part 2 fixedly connected to the pile head connection part 1. The pile head connection part 1 is detachably fixedly connected to the transformer pile head Above, the secondary outgoing line connection part 2 detachably connects the low-voltage side lead and the secondary circuit take-off line.

[0022] Preferably, the above-mentioned pile head connection part 1 is provided with a through hole 3, and the through hole 3 is provided with a communication gap 4 near the outer end of the pile head connection part 1, and a locking screw 5 penetrates transversely through the communication gap 4, and the locking screw 5 adopts two One, the connection is stable and reliable, and a notched aluminum alloy sleeve can also be provided in the through hole 3, which is extruded and deformed, the locking is...

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PUM

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Abstract

The invention discloses a special wire clamp for a voltage loop of a metering device. The special wire clamp comprises a pile head connecting part and a secondary outgoing line connecting part fixedly connected with the pile head connecting part, wherein the pile head connecting part is detachably and fixedly connected to a transformer pile head, and the secondary outgoing line connecting part is detachably connected with a low-voltage side wire and a secondary loop power taking wire. According to the special wire clamp, a secondary circuit low-voltage line and a low-voltage main line can be separately wired and do not interfere with each other, meanwhile, a connection mode of a transformer low-voltage pile head and a low-voltage outgoing line is not affected, the trend of the secondary circuit voltage taking line of the metering device can be clearly seen through the novel connection wire clamp, the problems of poor contact and lap joint oxidation of the low-voltage line are effectively solved, and by improving the connection mode, sampling of the voltage secondary circuit of the metering device is reliable and precise.

Description

technical field [0001] The invention belongs to the technical field of power-taking equipment for a voltage loop of a metering device, and relates to a special clamp for the voltage loop of a metering device. Background technique [0002] In recent years, with the development of cities, 10kV distribution lines have gradually expanded, especially in third- and fourth-tier cities. The number of 10kV distribution transformers has increased significantly, which has also led to a gradual increase in the operation and maintenance of 10kV distribution transformers, and transformer maintenance has become a power grid enterprise. One of the daily frequent and repetitive tasks, during the operation and maintenance of 10kV distribution transformers, due to the secondary circuit of the distribution transformer current transformer receiving voltage on the low-voltage pile head, frequent transformer grounding faults often occur due to problems such as loose wiring and oxidation , Secondly...

Claims

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Application Information

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IPC IPC(8): H01R4/48G01R1/04G01R11/04
CPCH01R4/48G01R1/0425G01R1/0416G01R11/04
Inventor 陈启升李帅王劲孔祥伦赵正晖刘江陆高峰李亮席昌文陈茉莉
Owner GUIZHOU POWER GRID CO LTD
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