High-voltage PT cabinet

Abstract

A high-voltage PT cabinet comprises a cabinet body. The inner part of the cabinet body is divided into an instrument chamber arranged on the upper part of the front side, a handcart chamber arranged on the middle part of the front side, a front lower chamber arranged on the lower part of the front side, a bus chamber arranged on the upper part of the rear side and a cable chamber arranged on the lower part of the rear side. A handcart device is arranged in the handcart chamber. An upper contact of the handcart device is connected with a copper bar in the bus chamber through an upper static contact, and a lower contact is connected with a copper bar in the cable chamber through a lower static contact. A voltage transformer is installed on the lower part of the cabinet body. A, B and C phases of wiring ends of the voltage transformer is arranged on the side opposite to an N phase wiring end. The A, B and C phases of wiring ends are arranged in the cable chamber. A secondary terminal is arranged in the front lower chamber so as to enable the copper bar between the A, B and C phases of wiring ends and the lower static contact to extend vertically, so that the copper bar is reasonably arranged, the occupied space is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to a high-voltage PT cabinet. Background technique [0002] As is known, the interior of the high-voltage PT cabinet is divided into an instrument room at the upper front, a handcart room at the middle of the front, a lower front room at the lower front, a busbar room at the upper rear and a cable room at the lower rear. , the handcart room is equipped with a handcart device, the upper contact of the handcart device is connected to the copper bar in the busbar room through the upper static contact, and the lower contact is connected to the copper bar in the cable room through the lower static contact. The grounding switch connected to the copper bar is installed in the room, and the voltage transformer is installed in the lower part of the cabinet. The A, B, and C phase terminals of the voltage transformer are located in the front lower room, and the N phase terminal is located in the cable room. The secondary terminal is located...

AI Technical Summary

Problems solved by technology

[0002] As is known, the interior of the high-voltage PT cabinet is divided into an instrument room at the upper front, a handcart room at the middle of the front, a lower front room at the lower front, a busbar room at the upper rear and a cable room at the lower rear. , the handcart room is equipped with a handcart device, the upper contact of the handcart device is connected to the copper bar in the busbar room through the upper static contact, and the lower contact is connected to the copper bar in the cable room through the lower static contact. The grounding switch connected to the copper bar is installed in the room, and the voltage transformer is installed in the lower part of the cabinet. The A, B, and C phase terminals of the voltage transformer are located in the front lower room, and the N phase terminal is located in the cable room. The secondary terminal is located in the front and lower room, and the ground switch takes up a lot of space. The above structure makes it impossible to properly arrange the copper bars connecting the lower contacts and the A, B, and C phase terminals. The copper bars need to be bent many times, which not only increases The amount of copper bars, the copper bars take up a lot of space, and it is easy to cause the distance between the A, B, and C phase copper bars to the N phase or the cabinet steel plate to fail to meet the electrical clearance required by the national standard

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