Transformer turn-to-turn insulation transient impact cumulative effect test system

Abstract

The invention discloses a transformer turn-to-turn insulation transient impact cumulative effect test system, aiming to solve the technical problems of having little research on the influence of the intrusion wave to the transformer insulation deterioration under different states and how to evaluate the damage of the intrusion wave to the transformer insulation, and being lack of an effective test platform on intrusion wave cumulative effect study. The system includes an impact test loop and a test platform, the impact test loop includes an impact voltage generator which is connected with the high-voltage side of the test platform, the low-voltage side of the test platform is grounded, the test platform includes a turn-to-turn insulation model, electrodes, and a container, the turn-to-turn insulation model is composed of two sections of interchanging leads, the electrodes are fixed at the two ends of the turn-to-turn insulation model, and the turn-to-turn insulation model and the electrodes are arranged inside the container.

Description

technical field [0001] The invention relates to the technical field of high-voltage transformers, in particular to a test system for the transient impact cumulative effect of transformer turn-to-turn insulation. Background technique [0002] my country's substation equipment accidents occur from time to time, including a large number of unexpected equipment insulation accidents without warning. The cumulative effect of intrusive waves on transformers in substations is one of the important reasons for equipment insulation degradation and sudden accidents. For example, in areas with high lightning density, a considerable number of intrusive waves will impact the equipment every year, and each overvoltage of the intrusive wave will cause an impact on the insulation performance of related equipment. This cumulative effect will gradually deteriorate the insulation of the equipment. When the insulation withstand level of the transformer is insufficient, it will eventually lead to...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a transformer turn-to-turn insulation transient impact cumulative effect test system, which solves the problems in the prior art on the influence of intrusive waves on transformer insulation degradation under different conditions and how to evaluate the intrusion waves on transformer insulation damage. The technical problem of few and lack of effective test platforms for the study of the cumulative effect of intrusion waves

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