A non-excitation low-loss power transformer

By using hollow structure heat dissipation ring and forced circulating insulating oil in the power transformer, the problems of low heat dissipation efficiency and short service life in the prior art are solved, and more efficient heat dissipation and oil purification effects are achieved, extending the service life of the transformer.

CN114121421BActive Publication Date: 2025-03-28HUANOU ELECTRIC CO LTD
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Patent Information

Application Number
CN202111257521.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-10-27
Publication Date
2025-03-28
Estimated Expiration
2041-10-27

AI Technical Summary

Technical Problem

The existing power transformers have simple heat dissipation structure, resulting in a fixed spray range of insulating oil and a small circulation range, which affects the heat dissipation efficiency and service life.

Method used

A non-excitation low-loss power transformer is designed, using a hollow heat dissipation ring, and the conveyor impeller is driven to rotate through the wind turbine blades, so as to increase the insulating oil to diffuse heat. In the absence of wind, the stepper motor is used to force circulate the insulating oil to enhance the heat dissipation effect. In addition, the insulating oil is sprayed in the diffusion assembly to contact the deflector and the oil cleaning assembly, further improving the heat dissipation efficiency and the oil purification effect.

Benefits of technology

By increasing the heat dissipation area and forced circulating insulating oil, the heat dissipation efficiency of the transformer is significantly improved, the service life is extended, and the ash from the oil is effectively removed, which improves the stability and performance of the transformer.

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Abstract

The present invention discloses a non-excitation low-loss power transformer, which relates to the technical field of power equipment; specifically, it includes a transformer base, a transformer housing and a transformer core are installed on the top of the transformer base, and a transformer end cover is fixedly installed on the top of the transformer housing, and a plurality of mounting brackets are arranged at the bottom of the transformer base, and a transformer sealing cover is fixedly installed on the top of the transformer end cover. In the present invention, the environment is in a windy environment, and the conveying impeller is driven by the wind wheel blades to rotate inside the pump chamber, so that the insulating oil at the bottom is continuously raised, and then the heat generated by the transformer is transmitted and diffused to the heat dissipation ring. In windless weather, the power shaft is driven to rotate by a stepper motor, and then the insulating oil is forced to circulate, thereby increasing the heat dissipation effect. At the same time, the wind wheel blades are driven to rotate, stirring the air flow around the transformer, and further enhancing the heat dissipation effect of the transformer.
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