A dielectric response test device for oil-paper composite insulation

A technology of composite insulation and dielectric response, applied in measuring devices, testing dielectric strength, measuring electricity, etc., can solve the problem of limiting discharge fault types, inconvenient replacement of electrodes, difficulty in simulating internal overheating faults, and the influence of operating temperature and ambient temperature Law and other issues
CN109613405BActive Publication Date: 2020-10-16ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
Publication Date
2020-10-16

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Abstract

The invention discloses an oil-paper composite insulation dielectric response test device and relates to the technical field of insulation test. The device comprises a shell and an electrode system. The electrode system is mounted in the shell. The shell further comprises a clamping mechanism, a temperature control system, and a supporting mechanism. An electrode and a test sample are clamped inside the shell through the clamping mechanism. The supporting mechanism used for mounting the clamping mechanism and the temperature control system is arranged on the outside of the shell. A positioningclamp is annular. According to the oil-paper composite insulation dielectric response test device, convenient replacement of the electrode is achieved by means of the combined design of the clampingmechanism and the supporting mechanism, the monitoring and regulation of the internal temperature of the shell are realized by means of the temperature control system, so as to accurately judge the relationship between the observation temperature and the insulation information; and the increasing creepage distance and the eliminating edge flashover are realized by using the positioning clamp annular design.
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Description

technical field

[0001] The invention relates to the technical field of insulation testing, in particular to a dielectric response testing device for oil-paper composite insulation. Background technique

[0002] Oil-paper insulation system is widely used in oil-immersed transformer equipment because of its good insulation and heat dissipation. During the long-term operation of oil-immersed transformers, the oil-paper insulation system is not only affected by electricity, but also affected by various factors such as thermal stress, mechanical force and environment. The prediction and evaluation of transformer insulation aging has become an important topic. Equipment personnel often use oil-paper insulation polymerization degree measurement method, furfural content measurement method and dissolved gas method in oil to carry out insulation aging and evaluation of oil-immersed transformers. However, these methods all require hanging covers and coring, which will damage the insu...

Claims

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