A voltage equalizing ring assembly for a closed impulse voltage generator

A technology of impulse voltage and grading ring, applied in the field of power system, can solve the problems of device insulation damage, easy to cause local air ionization, flashover failure of epoxy insulating cylinder, etc., to achieve reasonable design and reduce the probability of flashover accidents. Effect

Active Publication Date: 2021-08-27
XI AN JIAOTONG UNIV +1
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  • Abstract
  • Description
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Problems solved by technology

[0004] During the commissioning and on-site test of the closed gas-insulated impulse voltage generator, the outer surface of the insulating outer cylinder will bear a high-amplitude impulse voltage at the moment of discharge. Due to the protruding geometry of the electrode at the flange fastening screw, it is easy to cause local air damage. At the same time, under the action of the vertical component of the electric field, the electric field on the surface of the insulating cylinder is distorted, causing a flashover fault on the outer wall of the epoxy insulating cylinder, resulting in damage to the insulation of the device

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  • A voltage equalizing ring assembly for a closed impulse voltage generator
  • A voltage equalizing ring assembly for a closed impulse voltage generator
  • A voltage equalizing ring assembly for a closed impulse voltage generator

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Embodiment Construction

[0022] The following will refer to the attached Figure 1 to Figure 6 Specific embodiments of the present disclosure are described in detail. Although specific embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0023] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art should understand that they may use different terms to refer to the same component. The specification and claims do not use differences in nouns as a way of distinguishing components, but use differences in functions of components as a criterion for distinguishing. "Includes" or "compri...

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Abstract

The disclosure discloses a voltage equalizing ring assembly for a closed impulse voltage generator, comprising: an outer voltage equalizing ring and a multi-stage inner voltage equalizing ring, wherein the outer voltage equalizing ring is connected to the shell of the impulse voltage generator On the butt joint flanges at both ends, the multi-stage internal voltage equalizing rings are evenly arranged on the insulating plates on both sides of each discharge module in the impulse voltage generator, and shield the local electric field in the impulse voltage generator through equipotential shielding. The disclosure installs the inner voltage equalizing ring along the discharge module on the basis of installing only the outer voltage equalizing ring in the existing closed impulse voltage generator, on the one hand, it can suppress the electric field at the upper and lower ends of the outer edge surface, and on the other hand, it can reduce the Electric field inhomogeneity.

Description

technical field [0001] The disclosure belongs to the technical field of power systems, and specifically designs a voltage equalizing ring assembly for a closed impulse voltage generator. Background technique [0002] Since the primary equipment may have some potential insulation defects during the manufacturing process, and the on-site high-voltage test can detect these insulation defects, it is necessary to conduct a high-voltage test on the newly invested primary equipment; when the primary equipment has been in operation for a period of time, because The impact of the environment and some internal changes will lead to certain failures of the equipment, so a high-voltage test is also required for a period of time after the primary equipment is put into operation to ensure the safe and stable operation of the equipment. In addition to the long-term working voltage, the high-voltage electrical equipment in the power system may also bear the effects of short-term lightning ov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/42
CPCH01B17/42
Inventor 刘轩东马钰峰张乔根
Owner XI AN JIAOTONG UNIV
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