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Circuit flashover protector

A line flashover and protector technology, which is applied in the installation of lighting conductors, cable installation, electrical components, etc., can solve the problems of high tripping rate, achieve low lightning tripping rate, improve service life, and protect the service life.

Inactive Publication Date: 2017-01-04
国网浙江省电力有限公司温州市洞头区供电公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a line flashover protector to solve the problem of high tripping rate in the existing lightning protection measures

Method used

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  • Circuit flashover protector
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Examples

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Embodiment Construction

[0020] Such as figure 1 As shown, a line flashover protector includes a discharge ball gap 1, an equipotential connection fitting 2 and a flashover protector body 3. The flashover protector body 3 is a resistor sheet and a pulse capacitor medium with good nonlinear volt-ampere characteristics The equipotential connection fitting 2 is connected with the flashover protector body 3 to realize the equipotential connection of the flashover protector body 3, the equipotential connection fitting 2 is connected with a wire 5, and the flashover protector body 3 passes through the drain wire 4 It is connected with the wire 5 and the flashover protector body 3 is installed on the load side of the wire 5 line direction. The discharge ball gap 1 is fixed on the flashover protector body 3 in series, and the isolation from the wire 5 is realized through the discharge ball gap 1. The drain wire 4 and the wire 5 are arranged obliquely. The discharge ball gap 1 includes an upper discharge ball,...

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Abstract

The invention relates to a circuit flashover protector. The circuit flashover protector comprises a discharge sphere gap, an equipotential connection fitting and a flashover protector body, wherein the equipotential connection fitting is connected with the flashover protector body to achieve equipotential connection of the flashover protector body, a wire is connected to the equipotential connection fitting, the flashover protector body is connected with the wire by a drainage line and is arranged at a load side of a line route of the wire, the discharge sphere gap is fixed in series on the flashover protector body, isolation with the wire is achieved by the discharge sphere gap, and the drainage line and the wire are arranged in an inclination way. The circuit flashover protector has the advantages that the isolation with the wire is achieved by the discharge sphere gap, a leakage current can be enabled not to flow through the flashover protector body during normal running, and the service lifetime of the flashover protector body is prolonged; and by isolation of the discharge sphere gap, a grounding fault of the circuit cannot be caused when the flashover protector body is damaged, and the normal running of the circuit is ensured.

Description

technical field [0001] The invention relates to a line flashover protector. Background technique [0002] During the transportation of electric power, the electric wires in the field will be struck by lightning. Due to the large amount of distribution overhead lines and the wide area, the lightning trip rate is high, and the insulated wires have the problem of lightning disconnection. The main hazard of distribution overhead lines is the induced overvoltage generated. When the induced overvoltage causes two-phase or three-phase flashover at the same time, it will cause tripping; at present, the lightning protection and disconnection measures adopted by the distribution network are more " The method of "causing and dredging", such as puncture-type arc-proof fittings, lightning-proof post insulators, etc., these technical means can reduce lightning-strike disconnection accidents, but the lightning-strike tripping rate is relatively high. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): H02G13/00
CPCH02G13/20H02G13/80
Inventor 叶明友许萌张孟涛蔡文宇陈晓忠
Owner 国网浙江省电力有限公司温州市洞头区供电公司
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