Explosive type DC circuit breaker based on electromagnetic pulse

Abstract

The invention discloses an explosive type DC circuit breaker based on an electromagnetic pulse, which comprises a pulse magnet, a main contact and a support ring of the main contact. By exerting pulse current to the pulse magnet to create a relatively strong magnetic field and induct a vortex on the surface of the main contact. The vortex and the pulse magnetic field interact with each other to generate an electromagnetic pulsing force along the radial outward direction to swiftly pull off the V section on the main contact. The circuit breaker abandons the traditional schemes like the dynamite explosion or the electrical explosion made by mixing aluminum wire and water to generate gases as the driving force to blast off the circuit breaker, and resorts to a new scheme by applying the electromagnetic pulse, thereby overcomes the deficiencies of the old explosive type DC circuit breaker which poses strict requirements to the components. Also the requirements of the power supply and the power control device for the pulse current generation are much lower, but at the same time the circuit breaker is able to open the main circuit of a higher voltage and current capacity.

Description

technical field [0001] The invention relates to an explosive direct current circuit breaker, in particular to an explosive direct current circuit breaker based on pulse electromagnetic force. Background technique [0002] One of the current explosive DC circuit breakers in the world is to separate the contacts by triggering and detonating the detonator and explosives placed in the explosion chamber in advance. However, detonators and explosives are controlled products. Considering the particularity of their purchase and management, they cannot be widely used; the other uses the chemical reaction between aluminum wire and water to release gas to form pressure to blow off the contacts. It seals the explosion chamber. High performance requirements, difficult maintenance and operation. Contents of the invention [0003] In view of the above defects, the present invention provides an explosive DC circuit breaker based on pulsed electromagnetic force, which aims to solve the pr...

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Problems solved by technology

[0003] In view of the above defects, the present invention provides an explosive DC circuit breaker based on pulsed electromagnetic force, which aims to solve the problem that the existing DC circuit breaker has high requirements on the components due to the use of gas or gunpowder explosion as the driving force in the prior art. question

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