A frame type circuit breaker arc ignition and arc extinguishing device and contact arc extinguishing system
A frame-type circuit breaker and arc extinguishing device technology, applied in the direction of circuit breaker components, etc., can solve the problem of low electrical life of the circuit breaker, low breaking life, poor cooperation between the contact system and the arc extinguishing system, and breaking and arc extinguishing The performance is not high enough to achieve the effect of good arc striking effect, simple structure and long service life
Active Publication Date: 2022-07-01
SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP +1
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Problems solved by technology
In the prior art, the general contact system does not have an independent arc contact or / and an arc ignition and arc extinguishing device arranged according to the arc contact. The contact system and the arc extinguishing system cannot cooperate well, and the breaking and arc extinguishing performance is not high. Circuit breaker electrical life, breaking life is not high
Method used
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[0025] In order to make the present invention more obvious and easy to understand, preferred embodiments are hereby described in detail as follows in conjunction with the accompanying drawings.
[0026] A frame type circuit breaker arc ignition and arc extinguishing device of the present invention, such as Figure 1 to Figure 3 As shown, it includes a right arc-extinguishing wall 5 and a left arc-extinguishing wall 6, the right arc-extinguishing wall 5 and the left arc-extinguishing wall 6 are fixedly connected together by riveting screws 4 to form a casing, and one side of the right arc-extinguishing wall 5 is connected to the One side of the left arc extinguishing wall 6 is respectively connected to the left and right ends of the arc striking sheet 1 , a plurality of arc extinguishing sheets 2 are evenly distributed in the casing, and an arc blocking sheet 3 is arranged between the top of the casing and the arc extinguishing sheet 2 . A plurality of arc extinguishing pieces ...
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The invention discloses a frame type circuit breaker arc striking and arc extinguishing device and a contact arc extinguishing system. The frame type circuit breaker contact arc extinguishing system comprises a frame type circuit breaker arc striking and arc extinguishing device. The lower end of the arc striker in the arc extinguishing device is provided with a corresponding contact system. The contact system is arranged in the arc shield. The lower part of the contact system is provided with a contact support, and the left and right sides of the contact support are provided with a contact system. There are fixed splints, the left and right ends of the arc shield are respectively connected with the two fixed splints, the arc shield and the lower ends supported by the contacts are arranged on a bracket, and a bus bar is arranged on the bracket. The invention can effectively improve the breaking current and arc extinguishing performance of the contact system of the circuit breaker, effectively reduce the burning loss of the main contacts of the contact system, and improve the contact The actual service life of the contact system, extending the actual service life of the contact system as well as the circuit breaker.
Description
technical field [0001] The invention relates to a frame type circuit breaker arc striking and arc extinguishing device and a contact arc extinguishing system, belonging to the technical field of low-voltage electrical appliances. Background technique [0002] Frame-type circuit breakers are important components in low-voltage power distribution systems. They are usually used as incoming main switches or branch main switches in distribution networks to distribute electrical energy, protect lines and power equipment from overloading. , undervoltage, short circuit, single-phase grounding and other fault hazards. [0003] The frame circuit breaker is used for making, breaking and carrying rated working current and short-circuit, overload and other fault currents. When overload, short-circuit, voltage drop or disappearance occurs in the circuit, it can automatically cut off the circuit for reliable protection. The circuit breaker contact arc extinguishing system plays the role o...
Claims
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IPC IPC(8): H01H73/18
CPCH01H73/18
Inventor 万祥军周春龙施金武陆旻
Owner SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP