A High Voltage Vacuum Circuit Breaker with Isolation Function

Abstract

The invention provides a high-voltage vacuum circuit breaker having an isolation function. The high-voltage vacuum circuit breaker comprises a vacuum circuit breaker and an isolation device, wherein the vacuum circuit breaker is provided with at least one pole rod; a vacuum arc-extinguishing chamber is installed in the pole rod; a first contact and a second contact are included in the arc-extinguishing chamber; the first contact and the second contact are a pair of movable and fixed contacts arranged oppositely; the isolation device is installed on the pole rod and comprises a driving mechanism and a conductive touch arm; the conductive touch arm can be driven by the driving mechanism; the conductive touch arm is electrically connected with the first contact and / or the second contact through a conductor and provided with a contact part; and the conductive touch arm can enable the contact part to be connected or disconnected with an inlet bus and / or outlet bus under the driving of the driving mechanism. According to the high-voltage vacuum circuit breaker disclosed by the invention, the isolation device for realizing the isolation function is installed on the pole rod of the vacuum circuit breaker to form an integral module; when the isolation device is installed or disassembled, the integral module is directly disassembled; usage of nonferrous metals is saved; the installation process is reduced; and thus, the high-voltage vacuum circuit breaker is very convenient and high-efficiency to install.

Description

technical field [0001] The invention relates to the technical field of high-voltage vacuum circuit breakers, in particular to a high-voltage vacuum circuit breaker with an isolation function. Background technique [0002] High-voltage vacuum circuit breakers are electrical equipment often used in high-voltage power distribution systems. They usually include vacuum circuit breakers and isolation switches. The function of vacuum circuit breakers is to close the circuit and open the circuit. It is used for The contacts that close the circuit or open the circuit are installed in the vacuum interrupter, and the arc generated when the contact is closed or opened can be reliably broken in the interrupter, with high safety performance. The function of the isolation knife switch is to establish a reliable insulation gap and separate the lines with an obvious disconnection point to ensure the safety of operators and equipment. When operating the high-voltage vacuum circuit breaker to...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects that the vacuum circuit breaker and the isolation switch of the high-voltage vacuum circuit breaker in the prior art are independently installed inside the cabinet, resulting in a complicated connection structure inside the cabinet and inconvenient disassembly and assembly. , so as to provide a high-voltage vacuum circuit breaker with isolation function that integrates the isolation device and the vacuum circuit breaker that realize the isolation function into a whole, and can be disassembled as a whole during disassembly

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