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Insulating isolation device for high-voltage direct-current test of metallic oxide arrester

An insulating isolation device, high-voltage DC technology, applied in measuring devices, instruments, components of electrical measuring instruments, etc., can solve the problems of insufficient standard operation, insufficient stability, labor and time-consuming, etc., and achieve good flexibility, easy to carry, Good safety performance

Active Publication Date: 2014-02-19
TONGLING POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is labor-intensive and time-consuming, while the latter is not standardized enough to operate, and it is not stable enough

Method used

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  • Insulating isolation device for high-voltage direct-current test of metallic oxide arrester

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Embodiment Construction

[0010] Depend on figure 1 As shown, the insulating and isolating device for high-voltage direct current test of the metal oxide arrester of the present invention is a bell-shaped housing with an open lower end and a hollow interior. The housing is made of insulating materials. Two parts of the body 2, the inner chamber of the cover top 1 matches the shape of the head of the metal oxide arrester, the height of the inner cavity of the cover top 1 is about 5cm, and the diameter of the bottom 11 is about 4cm. The diameter of the open part 21 at the lower end of the cover body 2 is not less than 1.5 times the diameter of the umbrella skirt of the arrester. In this example, the diameter is about 20 cm; The upper shed of the lightning arrester can be partially covered, and the height of the cover body in this example is about 10cm.

[0011] Both sides of the lower part of the cover body 2 are provided with through holes 22 and 23 for the passage of high-voltage DC test cables, and t...

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Abstract

The invention relates to an insulating isolation device for a high-voltage direct-current test of a metallic oxide arrester. The insulating isolation device is a bell-shaped cover body, wherein the lower end of the cover body is open, the cover body is hollow and is made of insulating materials, the cover body comprises a cover top arranged on the top, and a cover body arranged on the lower portion, an inner cavity of the cover top is matched with the head of the metallic oxide arrester in shape, the diameter of the opening portion of the lower end of the cover body is no smaller than 1.5 times that of an umbrella skirt of the arrester, and the height of the cover body at least meets the requirement that when the cover top is installed on the head of the metallic oxide arrester in a sleeved mode, the cover body can partially cover the umbrella skirt on the upper portion of the arrester. The insulating isolation device is good in flexibility, can be conveniently placed in a narrow space or a cramped space, and is good in safety performance, convenient to carry and easy to operate.

Description

technical field [0001] The invention relates to an insulating and isolating device for high-voltage direct-current testing of metal oxide arresters of 35kV and below in indoor or switch cabinets. Background technique [0002] The purpose of the high-voltage DC test of metal oxide arresters is mainly to check whether the valve plate is damp and aging, and to determine whether its operating performance meets the requirements. Therefore, the successful implementation of this test is very important to verify the operating conditions of metal oxide arresters. When conducting high-voltage DC tests on metal oxide surge arresters of 35kV and below indoors or in switch cabinets, due to space or surrounding environment constraints, often the high-voltage DC voltage cannot be applied, the insulation distance is not enough, and the arrester head causes breakdown due to air discharge; in addition , due to the large work area, many operating points, and scattered personnel, when the monit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/02
Inventor 邓雄伟
Owner TONGLING POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO
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