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Device for testing power frequency follow current intercepting capability of lightning protection device

A lightning protection device, power frequency freewheeling technology, applied in the field of detection, can solve the problem of high test failure rate, achieve the effects of simple operation and maintenance, avoid potential safety hazards, and low test costs

Active Publication Date: 2014-12-24
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a test device for the power frequency continuous current interruption capability of the lightning protection device in view of the relatively high failure rate of the test.

Method used

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  • Device for testing power frequency follow current intercepting capability of lightning protection device
  • Device for testing power frequency follow current intercepting capability of lightning protection device

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0012] Such as figure 1 As shown, it is a schematic structural diagram of an embodiment of a test device for power frequency continuous current interruption capability of a lightning protection device of the present invention, including: a power frequency oscillation circuit 110, a high voltage shock circuit 120, a mechanical linkage device 130, a sampling resistor 140 and a voltage divider 150 ;

[0013] The power frequency oscillating circuit 110 includes a power frequency inductor 111, a first ball gap 112, and a power frequency capacitor 113 connected in sequence, and the high voltage impact circuit 120 includes a shock capacitor 121, a second ball gap 122, and a waveform regulator connected in sequence 123, the power frequency inductance 111 of the power frequency osci...

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Abstract

The invention discloses a device for testing the power frequency follow current intercepting capability of a lightning protection device. The device comprises a power frequency oscillation circuit, a high-voltage impact circuit, a mechanical linkage device, a sampling resistor and a voltage distributing device. The power frequency oscillation circuit comprises a power frequency inductor, a first sphere gap and a power frequency capacitor, wherein the power frequency inductor, the first sphere gap and the power frequency capacitor are sequentially connected. The high-voltage impact circuit comprises a waveform adjustor, a second sphere gap and an impact capacitor, wherein the waveform adjustor, the second sphere gap and the impact capacitor are sequentially connected. The power frequency inductor, the high-voltage impact circuit and the voltage distributing device of the power frequency oscillation circuit are connected with two connecting-in ends respectively in parallel, and one connecting-in end is further connected with the sampling resistor in series. The mechanical linkage device is further connected with the first sphere gap and the second sphere gap, the connecting-in ends are used for being connected with the lightning protection device to be tested. The mechanical linkage device is used for controlling the discharging moment of the power frequency oscillation circuit and the discharging moment of the high-voltage impact circuit by adjusting the distance between the first sphere gap and the second sphere gap and controlling the discharging moment of the high-voltage impact circuit at the set phase moment of the power frequency oscillation circuit. According to the scheme, the test success rate can be improved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a testing device for the power frequency freewheeling interruption capability of the lightning protection device of the lightning protection device. Background technique [0002] Developed countries have carried out long-term research on the power frequency continuous current interruption capability test of power line lightning arresters (lightning arresters). The power supply simulates the actual working condition of the lightning arrester in the running line of the hanging network, but its synchronous control method is realized by controlling the closing and opening of the circuit breaker through a single-chip microcomputer or PLC control system, which costs a lot of money and takes up a lot of space for equipment. At the same time, it is necessary to test the inherent closing time and opening time of the circuit breaker and the ignition time of the ignition device, etc., and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 李恒真刘根才刘益军欧繁孔华东范群芳董镝任亚英陈邦发苗银银
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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