Frequency domain and time domain-based condenser bushing insulation system aging state evaluation method

Abstract

The invention discloses a frequency domain and time domain-based condenser bushing insulation system aging state evaluation method, apparatus, and device, and a computer-readable storage medium, including: separately performing PDC measurement on dry-type bushing and oil-immersed bushing individual insulation material samples, and dry-type and oil-immersed integral bushing models at different temperatures after aging processing is separately performed on the dry-type bushing and oil-immersed bushing individual insulation material samples, and the dry-type and oil-immersed integral bushing models; performing FDC measurement on the dry-type bushing and oil-immersed bushing individual insulation material samples, and the dry-type and oil-immersed integral bushing models at different temperatures and humidity; and effectively analyzing a bushing insulation material aging state according to a PDC measurement result and an FDS measurement result of the dry-type bushing and oil-immersed bushing individual insulation material samples and the dry-type and oil-immersed integral bushing models. The method, the apparatus, the device, and the computer-readable storage medium provided in the present invention can effectively avoid a loss caused by a bushing accident.

Description

technical field [0001] The present invention relates to the technical field of bushing detection of power equipment, in particular to a method, device, equipment and computer-readable storage medium for evaluating the aging state of capacitive bushing insulation systems based on frequency domain and time domain. Background technique [0002] Bushings are major accessories for many electrical equipment, including transformers, circuit breakers, capacitors, etc. Non-capacitive and capacitive are the two basic types of bushings. The former appeared earlier, and the structure is relatively simple. Capacitive bushings are used in four technologies: Type RB, Type OIP, Type RIP and Type ERIP. The OIP type bushing was developed in the 1920s and is currently the most used type of bushing. The explosion accident of the bushing is often related to the aging of the bushing insulation system, so it is very important to detect the state of the bushing during operation. Currently, conv...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method, device, equipment and computer-readable storage medium for evaluating the aging state of capacitive bushing insulation systems based on frequency domain and time domain, so as to solve the lack of effective capacitive bushing insulation in the prior art. The method of evaluating the aging state of the system cannot effectively avoid the problem of losses caused by casing events

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