Porcelain insulator internal insulation detection method and porcelain insulator detection circuit

A porcelain insulator and detection method technology, applied in the field of porcelain insulator internal insulation detection, porcelain insulator detection circuit, can solve the problems of few application places, long pressurization time, inconvenient detection, etc., achieve wide application places, short pressurization time, Ease of miniaturization

Pending Publication Date: 2020-09-25
广州广华智电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the power frequency withstand voltage test requires professional equipment, the equipment is bulky, the single pressurization time is long, and there are few application places, it is not convenient for mass testing

Method used

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  • Porcelain insulator internal insulation detection method and porcelain insulator detection circuit
  • Porcelain insulator internal insulation detection method and porcelain insulator detection circuit
  • Porcelain insulator internal insulation detection method and porcelain insulator detection circuit

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Embodiment Construction

[0024] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0025] see Figure 1-4 ,in, figure 1 It is a flow chart of an embodiment of the method for detecting the internal insulation of porcelain insulators of the present invention; figure 2 It is a circuit diagram of an embodiment of a porcelain insulator detection circuit applied to the porcelain insulator internal insulation detection method of the present invention; image 3 It is a schematic diagram of an embodiment of the voltage waveform after the impulse voltage is applied to qualified porcelain insulators and deteriorated porcelain insulators in the method for detecting the internal insulation of porcelain insulators of the present invention; Fi...

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Abstract

The invention provides a porcelain insulator internal insulation detection method and a porcelain insulator detection circuit, and the method comprises the steps: S101, transmitting an impact voltagethrough an impact voltage generator, and obtaining voltage change waveform data through a measurement loop; S102, acquiring a first voltage amplitude, a first attenuation time constant, a second voltage amplitude and a second attenuation time constant according to the voltage change waveform data; S103, acquiring the insulation resistance of the porcelain insulator to be detected according to thefirst attenuation time constant and the second attenuation time constant; and S104, judging whether the porcelain insulator to be detected is a deteriorated porcelain insulator or not according to thefirst voltage amplitude and the second voltage amplitude or the insulation resistance of the normal porcelain insulator and the insulation resistance of the porcelain insulator to be detected. The method is high in accuracy, can quickly detect the porcelain insulator with internal insulation degradation, is short in pressurization time, is low in power, is low in energy consumption, is simple injudgment logic, facilitates the integration, facilitates the miniaturization of detection equipment, and is wide in application range.

Description

technical field [0001] The invention relates to the detection field of porcelain insulators, in particular to a detection method for the inner insulation of a porcelain insulator and a detection circuit for a porcelain insulator. Background technique [0002] With the development of industry, electric power has increasingly become an important guarantee for industrial development. Reliable external insulation is indispensable in power transmission. Porcelain insulators are an important guarantee for reliable external insulation. Among porcelain insulators, porcelain insulators are one of the most widely used types. Porcelain insulators have low production cost, good weather resistance, and are not easy to age. They have significant application advantages, so they are widely used in transmission lines, and their forms are also various. , such as disc porcelain insulators, tension porcelain insulators, etc. [0003] However, porcelain insulators also have a significant disadv...

Claims

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Application Information

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IPC IPC(8): G01R31/12G01R31/18G01R27/02
CPCG01R31/1245G01R31/18G01R27/025
Inventor 赵晨龙王黎明杨代铭李晓刚刘祝鸿谢敏文路
Owner 广州广华智电科技有限公司
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