Method for simulating faults of power transformer

Abstract

The invention discloses a method for simulating faults of a power transformer. According to a current mode and method for simulating the internal faults of the transformer, a returned transformer is commonly utilized to conduct fault simulation tests, or the fault stimulation tests are directly conducted in oil in the transformer, workload is large, fault modules need to be frequently replaced, and the simulation effect is poor. According to the method for simulating the faults of the power transformer, an electric power simulation transformer structure and a transformer fault model are used as the foundation, generation, disappearance and intensifying of transformer partial discharge faults and winding deformation faults are directly controlled outside a transformer body through an external regulation control method, and regulation can be safely conducted in the boosting process. By the adoption of the method for simulating the faults of the power transformer, the trouble of replacing the fault model in the fault simulating process is avoided, generation time and intensity of the faults in the boosting process can be conveniently regulated and controlled, and the method is accurate and efficient.

Description

technical field [0001] The invention relates to a method for power transformer fault simulation. Background technique [0002] In the power industry, during normal operation, the transformer not only has to withstand the long-term effects of the rated voltage, but also withstands various tests in different environments such as overvoltage, oil and gas corrosion, high temperature and low temperature, etc. Different forms and different strengths of insulation faults, so fully researching the characteristics of transformer internal fault defects is the basis of power equipment fault measurement system, test interference suppression and various pattern recognition. In recent years, domestic and foreign monitoring of transformer internal faults A large amount of research has been carried out on testing and testing, and a large number of targeted simulations have been carried out on field tests of equipment faults to realize the accumulation of internal fault characteristic dat...

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Problems solved by technology

[0003] Aiming at the problems existing in the current transformer fault simulation, the present invention is based on the power simulation transformer structure and the transformer fault model, and directly controls the generation, disappearance and aggravation of transformer partial discharge faults and winding deformation faults outside the body of the transformer through an external adjustment control method, and can Safely regulate during boost

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