Demagnetization protection structure of voltage transformer

Abstract

The invention discloses a demagnetization protection structure of a voltage transformer, and relates to the technical field of voltage transformers. The structure comprises a voltage transformer, thetop of the voltage transformer is fixedly connected with two wiring terminals; the bottom of the voltage transformer is fixedly connected with two C-shaped steels; two connecting rods penetrate through the interior of the C-shaped steel; the two pieces of C-shaped steel are fixedly connected with the another piece of C-shaped steel through two connecting rods; the top of the voltage transformer isfixedly connected with angle iron; the bottom of the angle iron is fixedly connected with a driving motor; the top surface of the C-shaped steel on the left side of the voltage transformer is fixedlyconnected with an oil pump; the peripheral side surface of the voltage transformer is fixedly connected with a spiral pipe; according to the structure, the multiple magnet balls roll down around thevoltage transformer body along the spiral pipe, demagnetization can be evenly conducted on the voltage transformer body, the ferromagnetic resonance phenomenon is avoided, heat is prevented from beinggathered in the voltage transformer body through the circulating cooling oil loop, and the working stability of the voltage transformer body is improved.

Description

technical field [0001] The invention relates to the technical field of voltage transformers, in particular to a demagnetization protection structure for voltage transformers. Background technique [0002] A voltage transformer is similar to a transformer and is an instrument used to transform voltage. However, the purpose of transforming the voltage of the transformer is to facilitate the transmission of electric energy, so the capacity is very large, and it is generally calculated in kilovolt-ampere or megavolt-ampere; The power supply of the protection device is used to measure the voltage, power and electric energy of the line, or to protect the valuable equipment, motor and transformer in the line when the line fails. Therefore, the capacity of the voltage transformer is very small, generally only a few volts, Dozens of VA, the maximum is no more than 1000 VA. [0003] The existing voltage transformers are prone to ferromagnetic resonance during use. Ferromagnetic reso...

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Problems solved by technology

[0003] The existing voltage transformers are prone to ferromagnetic resonance during use. Ferromagnetic resonance is a form of self-excited oscillation in power systems, which is caused by the saturation of ferromagnetic inductance in transformers and voltage transformers. Amplitude resonance overvoltage phenomenon, ferromagnetic resonance will cause serious damage to equipment, so developing a protective structure that can demagnetize is a technical problem that needs to be solved by those skilled in the art

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