Metal armored double circuit removable high voltage vacuum contactor switchgear

Abstract

The invention relates to a metal-clad double-circuit removable high-voltage vacuum contactor switchgear, which belongs to the electrical category and includes a device main body, a removable vacuum contactor, a static contact, a current transformer, a grounding switch, a main busbar, Quick opening mechanism, ground busbar, shutter mechanism, contact box and equipment door panel. It adopts the arrangement of two removable vacuum contactors overlapping up and down to form the overall equipment body. The fixed contact of the contact arm of the removable vacuum contactor on the upper side is connected with the phase line of the main bus through the branch bus; The static contact of the contact arm of the removable vacuum contactor is connected to the current transformer, the current transformer is connected to the grounding switch through the branch busbar, and each compartment is connected through the grounding busbar to achieve a good grounding function. The invention has strong practicability and can be directly assembled with the high-voltage vacuum circuit breaker cabinet without adding any switching device, and the vacuum circuit breaker can also be directly installed, which greatly improves the variability and utilization rate of the product.

Description

technical field [0001] The invention belongs to the electrical category, and relates to a metal-clad double-circuit removable high-voltage vacuum contactor switchgear, especially a metal-clad double-circuit removable high-voltage vacuum contactor switch for 3.6KV, 7.2KV and 10KV systems equipment. Background technique [0002] With the rapid development of my country's economy, the demand for electric energy is getting higher and higher, so the rise of power plants [0003] It has also become an inevitable trend, and the frequent operation, protection and control products of generators in power plants have also become indispensable emerging products in the electrical industry. In the past few years, many companies have developed high-pressure vacuum products by themselves. Contactor switchgear is used for frequent operation, protection and control of high-voltage motors, and its varieties are also very diverse, such as frame welding and assembly products with fixed installa...

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Problems solved by technology

[0013] The purpose of the patent of the present invention is to provide a metal-clad double-circuit removable high-voltage vacuum contactor switchgear, which solves the problems of incomplete five-defense functions, unreasonable equipment layout, poor quality of equipment materials, difficult maintenance, and operation problems of existing switchgears. Inconvenience and other issues

Its performance is the same as that of a separate equipment body of a circuit, which solves the problem of mis-distribution and mis-closing of the removable vacuum contactor: the grounding switch cannot close the removable vacuum contactor when it is closed, and the removable vacuum contactor is closed when it is closed The problem of not connecting the grounding switch and entering the charged interval by mistake

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