Method for estimating operation condition of sulfur hexafluoride transformers

Abstract

The invention provides a method for estimating the operation condition of sulfur hexafluoride transformers. The method comprises the following steps of: measuring gas component data of each sulfur hexafluoride transformer in real time; setting the influence coefficient of each gas in the gas component data according to the preset conversion relationship; calculating the health index of the sulfur hexafluoride by a radial basis function neural network algorithm according to the influence coefficient; and judging the operation condition of the sulfur hexafluoride transformers according to the health index. By the technology provided by the invention, the operation condition of each sulfur hexafluoride transformer can be grasped accurately; important reference is provided for a power enterprise to reasonably arrange maintenance resources and draw up a high-efficiency careful maintenance plan; the problems of many functional staffs involved in the conventional periodical test sulfur hexafluoride gas technology, long test period, complex test flow and low efficiency are solved; resources such as manpower, materials, financial resources and the like are saved for the power enterprise; and production benefit and economic benefit of the power enterprise are improved.

Description

technical field [0001] The invention relates to a transformer operating condition detection technology, in particular to a method for evaluating the operating condition of a sulfur hexafluoride transformer. Background technique [0002] The purpose of the analysis of the operating condition of sulfur hexafluoride transformer is to reflect the technical performance of the transformer by analyzing the content level of the internal gas components of the transformer. [0003] At present, there are a large number of sulfur hexafluoride transformers in power systems with voltage levels of 110kV and above. As the main carrier of power grid operation and high asset value equipment, its safe and reliable operation is directly related to the stability of the entire power grid. Therefore, the state analysis of sulfur hexafluoride transformers is essential for power companies to formulate medium and long-term transformer overhaul, technical transformation and Strategies such as equipme...

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Problems solved by technology

[0005] For the existing SF6 transformer operating condition evaluation technology, the test process is complicated, the cycle is long, and the data update is slow. It is impossible to monitor the gas composition data in real time to evaluate the health status of the SF6 transformer. low, consumes manpower, material and financial resources, and has been unable to meet the requirements for the evaluation of the operating conditions of sulfur hexafluoride transformers

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