Indoor high-voltage switch cabinet

Abstract

The invention discloses an indoor high-voltage switch cabinet. A cabinet body adopts an assembled structure, and is divided into a bus chamber, a handcart chamber, a cable chamber and a relay instrument chamber through a horizontally assembled baffle and a vertically assembled baffle, which are connected with one another through bolts, nuts and riveting nuts; the bus chamber, the cable chamber and the handcart chamber are respectively provided with pressure release devices; the bus chamber is provided with a branch small bus, a bus sleeve, a main bus, a fixed contact device, a fixed contact box and a current transformer; the cable chamber is provided with a grounding switch, a cable feed line, a lightning arrester and a grounding bus; the relay instrument chamber is provided with relay protection elements, an instrument, high voltage presence indicating device and a control small bus; and the handcart chamber is provided with a secondary plug, a heating device, a breaker handcart and a screw rod mechanism. The indoor high-voltage switch cabinet has the advantages that the assembled structure has high strength, the outer appearance is artistic, the shape of an electrode is optimized, the structure is compact, the occupied space is small, the accuracy is high, the interchangeability is good, the oxidation resistance is good, the heat dissipation is good, large current can be transmitted, the voltage is high, all switches and rear cabinet doors have against incorrect operation and mechanical interlocking functions, and the five-prevention functions are complete.

Description

technical field [0001] The invention belongs to the technical field of electrical appliances for power supply grids, in particular to an indoor high-voltage switchgear. Background technique [0002] With the development of society and the increase of population, the requirements for the reliability of power supply and the utilization rate of land are getting higher and higher, and the switchgear will develop towards miniaturization, high reliability, low consumption and environmental protection; with new technologies, The adoption of new materials, new processing technology and assembly technology, and the application of new design concepts not only reduce the size of switch cabinets, improve their reliability, but also make their appearance more beautiful. The assembled structure can improve the machining accuracy of the cabinet and ensure reliable interchange. It is also conducive to the organization of production by the manufacturer, saving floor space, facilitating mass ...

AI Technical Summary

Problems solved by technology

[0003] This new type of indoor high-voltage switchgear is a new generation of 7.2~24kV high-voltage switchgear developed to replace the KYN28 high-voltage switchgear. The coordination between the car and the cabinet, the poor interchangeability of the hand car, the appearance is not beautiful, the protection level is low, the volume is large, etc.

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