Arc extinguishing system of circuit breaker and circuit breaker
A circuit breaker and arc extinguishing technology, which is applied in the direction of circuit breaker components, circuit breaker contacts, etc., can solve the problems that the arc cannot be completely extinguished and the safety hazard of the circuit breaker, and achieve the effect of quickly extinguishing the arc and enhancing the arc extinguishing ability
Pending Publication Date: 2018-08-28
SHANGHAI LIANGXIN ELECTRICAL
View PDF1 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the arc generated by the circuit breaker cannot be completely extinguished, and it is easy to overflow the arc extinguishing chamber, causing a safety hazard to the use of the circuit breaker
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0040] as attached Figure 1a , 1b As shown in and 2, an arc extinguishing system of a circuit breaker includes an arc extinguishing chamber 1 and a contact system 2, and the contact system 2 includes a moving contact system 201 and a static contact system 202, and the moving contact The engagement or breaking of the system 201 and the static contact system 202 controls the on-off of the circuit breaker circuit, wherein:
[0041] as attached Figure 4 As shown, the moving contact system 201 includes a long moving contact assembly 201a, and short moving contact assemblies 201b are arranged on both sides or one side of the long moving contact assembly 201a. The short moving contact assembly 201b is long, and the long moving contact assembly 201a and the short moving contact assembly 201b can rotate around the same rotation center, as shown in the attached Figure 5 As shown, the long moving contact assembly 201a is provided with a front long moving contact 201a01 and a rear lo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an arc extinguishing system of a circuit breaker and the circuit breaker. The arc extinguishing system comprises an arc extinguishing chamber (1) and a contact system (2), thecontact system (2) comprises a dynamic contact system (201) and a static contact system (202), the connection or disconnection of the dynamic contact system (201) and the static contact system (202) controls the on-off states of a circuit of the circuit breaker, and the dynamic contact system (201) and the static contact system (202) are sequentially connected or disconnected for two times to be located outside the arc extinguishing chamber (1) and inside the arc extinguishing chamber (1) correspondingly so as to enable the arc not to be generated or extinguished outside the arc extinguishingchamber (1) but to enable the arc to be only generated or extinguished inside the arc extinguishing chamber (1). According to the arc extinguishing system of the circuit breaker and the circuit breaker, the structure of the arc extinguishing system of the circuit breaker is improved, the arc extinguishing capacity of the arc extinguishing chamber is enhanced, and the electrical service life and the breaking capacity of the frame circuit breaker are ensured to meet the related standard requirements.
Description
technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to an arc extinguishing system of a circuit breaker and the circuit breaker, which are suitable for DC and AC power supply systems. Background technique [0002] The circuit breaker is the most important power distribution equipment in the low-voltage power distribution system. With the continuous improvement of the power supply and power transmission and distribution equipment requirements of the power engineering team, the performance requirements for circuit protection switches are also getting higher and higher, miniaturization, high Performance, modularization, and high reliability are the main development directions of air circuit breakers at this stage. The contact and arc extinguishing system are important components of the circuit breaker. The design of the contact shape and size in the contact system is very critical, which is directly...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01H73/04H01H73/18
CPCH01H73/04H01H73/18
Inventor 向洪岗琚纪红于贻鹏杨园李强张亚欣
Owner SHANGHAI LIANGXIN ELECTRICAL