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Zinc oxide arrester on-site leakage test support frame

A lightning arrester and support frame technology is applied in the field of lightning arrester on-site leakage test support frame, which can solve the problems of cumbersome and complicated support frame placement, and achieve the effects of high safety, avoiding repeated disconnection and small size.

Inactive Publication Date: 2015-08-19
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the actual test site, most of the temporary support frames are placed on the insulating mat. The installation of this support frame is cumbersome, and each test set of arresters needs to be disconnected three times. cumbersome

Method used

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  • Zinc oxide arrester on-site leakage test support frame
  • Zinc oxide arrester on-site leakage test support frame
  • Zinc oxide arrester on-site leakage test support frame

Examples

Experimental program
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Effect test

Embodiment

[0049] Example: such as figure 1 with figure 2 As shown, the zinc oxide arrester field leakage test support frame, the support frame includes an insulating support frame, the insulating support frame is provided with a conductive fixing seat for fixing the arrester, and the conductive fixing seat is detachably connected to the insulating supporting frame.

[0050] The conductive fixing bases are two conductive connecting rods 3 respectively located on both sides of the upper end of the insulating support frame.

[0051] The material of the supporting frame is epoxy resin board. The thickness of the epoxy resin board is 1.0cm. Wire connection, the thread buckle is not easy to wear, and the insulation strength is not easy to decrease due to moisture.

[0052] The material of the conductive connecting rod 3 is a strip-shaped aluminum row, wherein, since the density of the aluminum row is 2.7g / cm 3 , small mass per unit volume, anti-corrosion, good electrical conductivity, wid...

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PUM

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Abstract

The invention discloses a support frame for testing site leakage of a zinc oxide arrester. The support frame is characterized by comprising an insulation support framework, wherein an electric conduction fixed seat for fixing the arrester is arranged on the insulation support framework, and is detachably connected with the insulation support framework. Due to the adoption of the technical scheme, the support frame for testing site leakage of the zinc oxide arrester has the characteristics of safety in use, simplicity in operation, convenience in carrying, low cost, safety and reliability, and strong practicability.

Description

technical field [0001] The invention relates to equipment used in substations, in particular to a support frame for field leakage tests of lightning arresters. Background technique [0002] At present, zinc oxide arresters are often used in urban and rural substations. The zinc oxide arrester uses the good nonlinear volt-ampere characteristics of zinc oxide to make the current flowing through the arrester extremely small at normal working voltage; when the overvoltage acts, the resistance drops sharply and the discharge Overvoltage energy to achieve the effect of protection. The difference between this arrester and the traditional arrester is that it has no discharge gap, and uses the non-linear characteristics of zinc oxide to play the role of leakage and breaking. The leakage test refers to detecting the DC voltage and the leakage current at 75% of the voltage when the zinc oxide arrester passes 1mA current, so as to judge whether the non-linearity of the arrester meets t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/04
Inventor 孔令京丛文益张跃勇张乐亭刘帅类金王环翟安段继来高文梅
Owner STATE GRID CORP OF CHINA
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