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Automatic reclosing circuit breaker with multiple types of detection modules

An automatic reclosing and detection module technology, which is applied to switches, circuits, and short-circuit tests that are activated by overcurrent and other abnormal electrical conditions, can solve the problems of large space occupation, inability to automatically reclose, time-consuming and laborious, etc., to achieve good protective effect

Pending Publication Date: 2020-07-03
XIAMEN TAIHANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The fault arc is a natural phenomenon that the insulator changes from non-conductive to conductive and glows after the voltage is broken down. In order to avoid the line fire caused by the fault arc, it is also necessary to install an AFDD fault circuit detector separately in the distribution box or distribution box. It is common to have multiple circuit breaker components arranged side by side in facilities, which takes up a lot of space, and can only detect faults and break the breaker, but cannot automatically reclose, requiring maintenance personnel to perform on-site closing operations, which is time-consuming and laborious

Method used

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  • Automatic reclosing circuit breaker with multiple types of detection modules
  • Automatic reclosing circuit breaker with multiple types of detection modules
  • Automatic reclosing circuit breaker with multiple types of detection modules

Examples

Experimental program
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Embodiment 1

[0078] This embodiment discloses a circuit breaker. Originally, the circuit breaker component can automatically detect some types of faults connected to the line, and automatically operate to break the circuit to protect the load circuit. However, because the electromagnet 21 or other fault action mechanisms in the current MCB can only identify current changes, but cannot effectively act on other abnormalities, many current electrical equipment still have circuit fires or load electrical damage even if they are equipped with circuit breakers. and so on. In order to provide a better comprehensive protection effect, circuit breakers with more functions will be set to achieve multiple protection effects.

[0079] In the prior art, because some functional components are integrated in the original circuit breaker, other structures cannot be installed in the original space. In order to integrate multiple detection modules, a separate module is usually installed outside the circuit b...

Embodiment 2

[0090] This embodiment discloses a circuit breaker, such as Figure 1-14 shown, where Figure 1-3 The overall assembly diagram of the circuit breaker is shown in , it can be seen that this embodiment is a double-pole circuit breaker, that is, a two-stage circuit breaker structure, which is composed of two single-stage circuit breakers. It consists of two shells 1 that are fastened together, and each shell 1 is provided with a circuit breaker assembly separately to form a complete circuit breaker structure connected to a single line.

[0091] Such as Figure 4 and Figure 5 As shown, the circuit breaker assembly includes an access terminal 18, an output terminal 19, an operating handle 5, a tripping assembly 20, an electromagnet 21, an arc extinguishing assembly 22, and an arc striking assembly 23. The upper part of the housing 1 is the operating handle. 5. The operating handle 5 is rotationally connected with the housing 1 and is connected with the tripping assembly 20 thro...

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Abstract

The invention discloses an automatic reclosing circuit breaker with multiple types of detection modules. The circuit breaker comprises a circuit breaker assembly and an automatic reclosing assembly which are arranged in the same shell, and further comprises a detection assembly which is arranged in the shell and is used for detecting a line fault accessed into the circuit breaker assembly. After the detection assembly detects that an accessed line has a fault, the circuit breaker assembly is directly tripped or the automatic reclosing assembly is indirectly tripped. The automatic reclosing assembly is linked with the circuit breaker assembly to realize buckling after the fault is eliminated. The detection assembly is arranged in an original circuit breaker shell, the detection assembly andthe circuit breaker assembly are arranged in the same space, automatic closing after circuit breaking is achieved through the integrated reclosing assembly, and therefore a good protection effect isachieved, and meanwhile an access can be automatically recovered.

Description

technical field [0001] The invention belongs to the technical field of circuit protection equipment, and in particular relates to an automatic reclosing circuit breaker with multi-type detection modules. [0002] Electrical fires caused by common power supply line factors or circuit load equipment failures, electrical failures produce high temperature Background technique [0003] There are two factors that cause electrical fires. One is that the excessive current runs on the conductor to generate a lot of heat and cause fires caused by insulation damage, such as short circuit faults or severe overloads; the other is electrical fires caused by fault arcs. Arc faults or electric sparks can ignite surrounding combustibles (usually wire insulation materials), which can further cause electrical fires, such as poor contact of electrical components and ground faults. Among them, the current factor is divided into instantaneous large flow and long-term overcurrent, and the instant...

Claims

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Application Information

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IPC IPC(8): H01H71/02H01H71/04H01H71/24H01H71/70H01H83/20G01R31/52
CPCH01H71/0207H01H71/04H01H71/24H01H71/70H01H83/20
Inventor 李欣李博琛李更生吕庆永
Owner XIAMEN TAIHANG TECH