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Electrode device for measuring electrical strength of composite insulator silicon rubber umbrella skirt and measuring method

A technology of composite insulator and electrode device, which is applied in the direction of measuring device, measuring electrical variables, testing dielectric strength, etc., can solve the problems of inconvenient electrical performance of the silicon rubber shed of composite insulator, and achieve convenient use, accurate electrical strength, and ease of use. maintenance effect

Inactive Publication Date: 2016-06-29
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the particularity of the structure of the composite insulator silicone rubber shed and the characteristics of the silicone rubber material, there are few reports on the measurement device for its electrical strength, which brings great inconvenience to the research on the electrical properties of the composite insulator silicone rubber shed.

Method used

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  • Electrode device for measuring electrical strength of composite insulator silicon rubber umbrella skirt and measuring method
  • Electrode device for measuring electrical strength of composite insulator silicon rubber umbrella skirt and measuring method

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Embodiment Construction

[0022] see figure 1 and figure 2 , the present embodiment is used for measuring the electrode device of composite insulator silicone rubber shed electrical strength, comprises upper plate 1, upper electrode 2, middle support plate 3, lower plate 4 and lower electrode 5; Upper electrode 2 and lower electrode 5 are two A stainless steel metal cylinder with a diameter of 25mm;

[0023] A hole is respectively arranged on the four corners of the upper plate 1, the middle support plate 3 and the lower plate 4, and four positioning threaded rods 6 pass through the holes and the upper plate 1 and the middle support are supported by the fastening bolts 7 of the positioning threaded rods. The plate 3 and the lower plate 4 are sequentially fixed at different height positions to form a fixed bracket; the height of the upper plate 1 and the middle support plate 3 is adjustable;

[0024] There is a circular hole in the center of the upper plate 1 and the lower plate 4; the upper end of t...

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Abstract

The invention discloses an electrode device for measuring the electrical strength of a composite insulator silicon rubber umbrella skirt and a measuring method.The electrode device is characterized by comprising an upper plate, an upper electrode fixed with the upper plate through a bolt, a middle support plate, a lower plate and a lower electrode fixed with the lower plate through a bolt, and the vertical height of the middle support plate and the vertical height of the upper plate are adjustable.In the use process, the height of the upper surface of the middle support plate is adjusted to be flush with the upper end of the lower electrode, a silicon rubber sample wafer is put on the middle support plate, and then the position of the upper electrode is adjusted according to the thickness of the silicon rubber sample wafer to enable the electrodes to directly make tight contact with the sample wafer.In the measuring process, the measuring device is immersed in a container filled with transformer oil, a breakdown voltage value of the silicon rubber sample wafer is measured through a voltage measuring instrument, and therefore the electrical strength of the silicon rubber umbrella skirt is obtained.The electrode device is simple in structure, convenient to install, easy to maintain, convenient and rapid in use method and capable of accurately measuring the electrical strength of the composite insulator silicon rubber umbrella skirt.

Description

technical field [0001] The invention relates to a measuring device and a measuring method for the electric strength of a composite insulator silicone rubber shed. Background technique [0002] Composite insulators are widely used in power systems due to their advantages of high mechanical strength, good pollution resistance and light weight. The silicone rubber shed is the outer insulation part of the composite insulator, and its function is to make the composite insulator have a sufficiently high external insulation performance against moisture flashover and pollution flashover. An important index used to evaluate the quality and operation status of the composite insulator silicone rubber shed is the electric strength, which directly affects its insulation strength. Due to the particularity of the structure of the composite insulator silicone rubber shed and the characteristics of the silicone rubber material, there are few reports on the measurement device for its electri...

Claims

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Application Information

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IPC IPC(8): G01R31/16G01R31/12
CPCG01R31/1245G01R31/16
Inventor 陈晓春李洛琦郑敏聪吴照国肖雄樊亚东周仲康
Owner STATE GRID CORP OF CHINA
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