Arcing gravitation and oil flow equivalent test device and method

Abstract

The invention discloses an arcing attraction and oil flow equivalent test device and method, and relates to the technical field of converter transformer detection, the arcing attraction and oil flow equivalent test device comprises a tap switch, a waste oil tank and a waste oil tank, the cavity of the tap switch is filled with transformer oil, and the tap switch is provided with a pressure sensor; the gas storage tank is communicated with the tap switch, a flow regulating valve and an electromagnetic valve are arranged on a communicated pipeline of the gas storage tank and the tap switch, the electromagnetic valve is used for controlling the on-off of gas leading to the tap switch, and the flow regulating valve is used for controlling the flow of the gas leading to the tap switch; the waste oil tank is communicated with the tap switch, a flow meter is arranged on a communicated pipeline of the waste oil tank and the tap switch, the flow meter is used for measuring the flow of oil, leading to the waste oil tank, of the tap switch, and the gas flow is controlled through the opening amplitude of the flow regulating valve so as to simulate the internal pressure change caused by the fault of the tap switch. Therefore, the instantaneous pressure change or the constant-speed pressure change can be simulated.

Description

technical field [0001] The invention relates to the technical field of converter transformer detection, in particular to a device and method for the equivalent test of gravitational force and oil flow of an arc. Background technique [0002] HVDC transmission technology has the advantages of long-distance and large-capacity power transmission. It has been widely used in my country's west-to-east power transmission this year, and has gradually become China's business card, and has dominated HVDC transmission technology in Brazil, Pakistan and other countries. It is of great significance to the output of a large amount of renewable capacity and clean energy in the west. With the proposal of the national dual carbon goal, it is of great strategic significance to use DC for new grid connection and continue to transmit clean energy from the west to the economically developed areas in the east. [0003] However, in recent years, due to the large capacity and high technical difficu...

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Problems solved by technology

[0003] However, in recent years, due to the large capacity and high technical difficulty of the converter transformer in the high-voltage transmission technology, the domestic and foreign operation performance is relatively small and the experience is lacking, and the equipment damage caused by internal faults is exposed during operation, and even developed into major electrical equipment. the fire

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