Zinc oxide resistor sheet with high side flashover voltage

A zinc oxide resistor, flashover voltage technology, applied in overvoltage protection resistors, varistors, varistor cores, etc. The properties of cladding materials and other issues can be improved to improve the flashover performance along the surface, the economy is good, and the flashover voltage along the surface can be improved.

Inactive Publication Date: 2017-06-20
QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the existing zinc oxide resistors is cylindrical, that is, its side is linear in the axial direction. This structure makes the creepage distance on the side of the zinc oxide resistor very short,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A zinc oxide resistor with high side flashover voltage, comprising a zinc oxide resistor body, the outer surface of the zinc oxide resistor body is sequentially coated with a high resistance layer and a surface glaze layer, and the zinc oxide resistor The outer surface is wavy, and the extension direction of the wavy zinc oxide resistance sheet wave is consistent with the thickness direction of the zinc oxide resistance sheet.

[0013] For the above-mentioned zinc oxide resistor, preferably, the high-resistance layer and the surface glaze layer are closely integrated with the main body of the zinc oxide resistor through high-temperature sintering.

[0014] For the above-mentioned zinc oxide resistor, preferably, the junctions between the two end surfaces and the outer surfaces of the zinc oxide resistor are arc angles.

[0015] For the above-mentioned zinc oxide resistor, preferably, the body of the zinc oxide resistor is a rotating body with a wavy outer surface.

[0...

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PUM

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Abstract

The invention discloses a zinc oxide resistor with high side flashover voltage, which comprises a zinc oxide resistor body, the outer surface of the zinc oxide resistor body is coated with a high resistance layer and a surface glaze layer in sequence, and the zinc oxide resistor The outer surface is wavy, and the extension direction of the wavy zinc oxide resistance sheet wave is consistent with the thickness direction of the zinc oxide resistance sheet. The invention has the advantages of simple structure, easy manufacture, low production cost, good flashover performance along the surface, high impact resistance of large current and the like.

Description

technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a zinc oxide resistance sheet suitable for high side flashover voltage of an arrester. Background technique [0002] Zinc oxide arrester is a main equipment used for lightning protection in power system, and its core component is zinc oxide resistor. Zinc oxide resistor is a functional composite ceramic material. Due to its excellent nonlinear resistance characteristics and large flow capacity, it plays an important role in limiting overvoltage amplitude and absorbing overvoltage energy in zinc oxide arresters. effect. [0003] Zinc oxide resistors' ability to withstand high current impact is one of its important characteristic parameters. When a large impact current passes through the zinc oxide resistor, the impact voltage amplitude on the zinc oxide resistor can be limited within a certain range due to its non-linear resistance characteristics. Usually, the m...

Claims

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Application Information

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IPC IPC(8): H01C7/112H01C7/12
CPCH01C7/112H01C7/123
Inventor 李春花
Owner QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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