Cavity-divided thermal-insulation-type power transformation cabinet

Abstract

The invention provides a cavity-divided thermal-insulation-type power transformation cabinet. The cavity-divided thermal-insulation-type power transformation cabinet comprises a cabinet body, a first thermal insulation board, a second thermal insulation board, a high-voltage module, a low-voltage module, a voltage transformation module, an input terminal, an output terminal, a first temperature control device and a second temperature control device. The first thermal insulation board and the second thermal insulation board are installed in the cabinet body and the interior of the cabinet body is divided into a high-voltage cavity, a voltage transformation cavity and a low-voltage cavity. The high-voltage module, the voltage transformation module and the low-voltage module are installed in the high-voltage cavity, the voltage transformation cavity and the low-voltage cavity respectively. The first temperature control device is installed in the high-voltage cavity, the second temperature control device is installed in the voltage transformation cavity, and the input terminal and the output terminal are respectively installed outside the cabinet body. The input terminal is connected with the high-voltage module, the high-voltage module is electrically connected with the voltage transformation module, the voltage transformation module is electrically connected with the low-voltage module, and the output terminal is connected with the low-voltage module. According to the cavity-divided thermal-insulation-type power transformation cabinet, an isolated cavity heat dissipation mode is adopted, the structure is simple, design is reasonable, the heat-dissipating effect is good, and normal power supply is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power transformation, in particular to a cavity-divided heat-insulated power transformer cabinet. Background technique [0002] At present, the box-type substation puts the transformer room, high-voltage room and low-voltage room in one box, adopts the independent structure of each unit, and connects a complete power supply system through wires, replacing the substations in various urban and rural areas. It is cheap and easy to maintain, and it has gradually attracted people's attention, and its application range has become wider and wider. Due to the concentrated distribution of multiple devices in the substation and the small space, the temperature inside the substation is very high and heat dissipation is difficult. If the transformer is operated in a high temperature environment for a long time, the insulating cardboard will become brittle and crack, shortening the insulation cardboard inside the tran...

AI Technical Summary

Problems solved by technology

Due to the concentrated distribution of multiple devices in the substation and the small space, the temperature inside the substation is very high and heat dissipation is difficult. If the transformer is operated in a high temperature environment for a long time, the insulating cardboard will become brittle and crack, shortening the insulation cardboard inside the transformer. When the temperature of the transformer reaches 85 degrees, the temperature protection will trip, which will have a great impact on enterprises and residents, and the advantages of safe and reliable power supply will be seriously affected.

The commonly used cooling devices for box transformers are mostly cooling fans. Through the operation of cooling fans, the hot air in the transformer room is pumped upwards. Since the top of the box transformer is designed to prevent rain, the cooling effect is poor and cannot meet the needs of use.

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