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Surface charge measurement device of basin type insulator model

A pot-type insulator and surface charge technology, applied in measurement devices, measuring electrical variables, instruments, etc., can solve the problems of local electric field distortion, larger measurement errors, insulator flashovers, etc. high effect

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 insulator surface charge, making the measurement The problem of large errors

Method used

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  • Surface charge measurement device of basin type insulator model

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Effect test

Embodiment 1

[0026] see figure 1 , a basin type insulator model surface charge measurement device provided in an embodiment of the present invention, including a charge measurement unit 1, a data processing unit 2 and an energy supply unit 3;

[0027] The charge 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, and a basin-type insulator module 6 to be tested is arranged on the high voltage electrode module 5, and the basin to be tested The type insulator module 6 is provided with several capacitive probe modules 7;

[0028] Described data processing unit 2 comprises electrometer module 8, and described electrometer module 8 is connected with oscilloscope module 9, and described oscilloscope module 9 is connected with display module 10; Described electrometer module 8 is connected with described capacitive probe module 7 connected;

[0029] The energy supply unit 3 includes a high...

Embodiment 2

[0033] see figure 1 , a basin type insulator model surface charge measurement device provided in an embodiment of the present invention, including a charge measurement unit 1, a data processing unit 2 and an energy supply unit 3;

[0034] The charge 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, and a basin-type insulator module 6 to be tested is arranged on the high voltage electrode module 5, and the basin to be tested The type insulator module 6 is provided with several capacitive probe modules 7;

[0035] Described data processing unit 2 comprises electrometer module 8, and described electrometer module 8 is connected with oscilloscope module 9, and described oscilloscope module 9 is connected with display module 10; Described electrometer module 8 is connected with described capacitive probe module 7 connected;

[0036] The energy supply unit 3 includes a high...

Embodiment 3

[0045] see figure 1 , a basin type insulator model surface charge measurement device provided in an embodiment of the present invention, including a charge measurement unit 1, a data processing unit 2 and an energy supply unit 3;

[0046] The charge 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, and a basin-type insulator module 6 to be tested is arranged on the high voltage electrode module 5, and the basin to be tested The type insulator module 6 is provided with several capacitive probe modules 7;

[0047] Described data processing unit 2 comprises electrometer module 8, and described electrometer module 8 is connected with oscilloscope module 9, and described oscilloscope module 9 is connected with display module 10; Described electrometer module 8 is connected with described capacitive probe module 7 connected;

[0048] The energy supply unit 3 includes a high...

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Abstract

This application relates to the field of the charge measurement technology, in particular to a surface charge measurement device of a basin type insulator model. 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 surface charge measurement of the insulator is caused, so that the measurement error is increased. The surface charge measurement device comprises a charge measurement unit, a data processing unit and an energy supply unit. The charge measurement unit consists of a positive-voltage container module, a high-voltage electrode module, a to-be-tested basin type insulator module and a capacitor probe module; the data processing unit includes an electrometer module, an oscilloscope module and a display module and the electrometer module is connected with the capacitor probe module; and the energy supply unit includes a high-voltage power module. The surface charge measurement device has advantages of small measurement interference, small error, and high precision.

Description

technical field [0001] The present application relates to the technical field of charge measurement, in particular to a device for measuring the surface charge of a basin-type insulator model. 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 meas...

Claims

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Application Information

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IPC IPC(8): G01R29/24
CPCG01R29/24
Inventor 何顺彭晶谭向宇王科
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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