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VFTO test apparatus for 500-kV GIS basin type insulator

A basin-type insulator and test device technology, applied in electrostatic field measurement and other directions, can solve the problems of local electric field distortion, accumulation of surface charges, and measurement errors, and achieve the effects of high precision, small measurement interference, and small errors.

Inactive Publication Date: 2017-11-17
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to solve the problem that surface charges will accumulate on the surface of GIS pot insulators in actual operation. The existence of surface charges will distort the local electric field, causing the insulator under VFTO to flash over along the surface; causing interference to the measurement of the space electric field, resulting in measurement errors Bigger problem

Method used

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  • VFTO test apparatus for 500-kV GIS basin type insulator

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Experimental program
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Effect test

Embodiment 1

[0025] see figure 1 , a 500kV GIS pot insulator VFTO test device provided in the embodiment of the present invention, including an electric field measurement unit 1, a data processing unit 2 and an energy supply unit 3;

[0026] The electric field measurement unit 1 includes a positive pressure container module 4, a high voltage electrode module 5 is arranged in the positive pressure container module 4, a basin-type insulator module 6 to be tested is arranged on the high voltage electrode module 5, and the basin to be tested Several sensor modules 7 are arranged on the type insulator module 6;

[0027] The data processing unit 2 includes a data calculation module 8, the data calculation module 8 is connected with the display module 9, and the data calculation module 8 is connected with the sensor module 7;

[0028] The energy supply unit 3 includes a high-voltage power supply module 9 , and the high-voltage power supply module 9 is connected to the high-voltage electrode modu...

Embodiment 2

[0032] see figure 1 , a 500kV GIS pot insulator VFTO test device provided in the embodiment of the present invention, including an electric field measurement unit 1, a data processing unit 2 and an energy supply unit 3;

[0033] The electric field measurement unit 1 includes a positive pressure container module 4, a high voltage electrode module 5 is arranged in the positive pressure container module 4, a basin-type insulator module 6 to be tested is arranged on the high voltage electrode module 5, and the basin to be tested Several sensor modules 7 are arranged on the type insulator module 6;

[0034] The data processing unit 2 includes a data calculation module 8, the data calculation module 8 is connected with the display module 9, and the data calculation module 8 is connected with the sensor module 7;

[0035] The energy supply unit 3 includes a high-voltage power supply module 9 , and the high-voltage power supply module 9 is connected to the high-voltage electrode modu...

Embodiment 3

[0045] see figure 1 , a 500kV GIS pot insulator VFTO test device provided in the embodiment of the present invention, including an electric field measurement unit 1, a data processing unit 2 and an energy supply unit 3;

[0046] The electric field measurement unit 1 includes a positive pressure container module 4, a high voltage electrode module 5 is arranged in the positive pressure container module 4, a basin-type insulator module 6 to be tested is arranged on the high voltage electrode module 5, and the basin to be tested Several sensor modules 7 are arranged on the type insulator module 6;

[0047] The data processing unit 2 includes a data calculation module 8, the data calculation module 8 is connected with the display module 9, and the data calculation module 8 is connected with the sensor module 7;

[0048] The energy supply unit 3 includes a high-voltage power supply module 9 , and the high-voltage power supply module 9 is connected to the high-voltage electrode modu...

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Abstract

The application relates to the technical field of insulating material performance testing, in particular to a VFTO test apparatus for a 500-kV GIS basin type insulator. In practical operation, surface charges are accumulated on the surface of the GIS basin insulator to cause distortion of a local electric field, so that the insulator surface flashover under VFTO is caused; and thus the interference on the space electrical field measurement is caused, so that the measurement error is increased. The VFTO test apparatus is composed of an electric field measurement unit, a data processing unit and an energy supply unit. The electric field measurement unit consists of a positive-pressure container module, a high-voltage electrode module, a to-be-tested basin type insulator module and sensor modules; the data processing unit includes a data calculation module and a display module; and the energy supply unit includes a high-voltage power supply module connected to the high-voltage electrode module. The test apparatus has advantages of small measurement interference, small error, and high precision.

Description

technical field [0001] The application relates to the technical field of performance testing of insulating materials, in particular to a VFTO test device for 500kV GIS pot insulators. Background technique [0002] Basin insulators are generally made of insulating parts (such as porcelain parts) and metal accessories (such as steel feet, iron caps, flanges, etc.) glued with glue or mechanically clamped. In terms of space electric field measurement, the sensors that have been applied to strong electric field measurement at present mainly include M-Z interference type and integrated common path interference type. The electric field sensor based on M-Z interference has a half-wave electric field range of 1500kV / m~6000kV / m, which can respond well The waveforms of ms, μs, and ns levels meet the sensitivity and frequency band requirements of strong electric field measurement. The integrated electric field sensor based on common path interference is mainly used in the measurement o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/12
CPCG01R29/12
Inventor 何顺程志万程世军马宏明
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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