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Circuit breaker capable of automatically calibrating closing force

An automatic calibration, circuit breaker technology, applied in circuit breaker testing, protection switch operation/release mechanism, etc., can solve the problems of short life and low reliability of automatic opening and closing, and achieve the effect of long switch life and high efficiency

Pending Publication Date: 2022-02-11
深圳微羽智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a circuit breaker with automatic closing force calibration, which aims to solve the technical problems of short life and low reliability of automatic opening and closing in the prior art

Method used

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  • Circuit breaker capable of automatically calibrating closing force
  • Circuit breaker capable of automatically calibrating closing force
  • Circuit breaker capable of automatically calibrating closing force

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Such as figure 1 As shown, the present invention includes a processor, an opening driver, an opening actuator, a closing driver, a closing actuator, a zero-crossing detection circuit, a trip unit and a voltage acquisition circuit, and the opening driver is respectively connected to the processor and The opening actuator, the closing driver is respectively connected to the closing actuator and the processor, the zero-crossing detection circuit, the voltage ac...

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Abstract

The invention provides a circuit breaker capable of automatically calibrating closing force, and the circuit breaker comprises a processor, an opening driver, an opening actuator, a closing driver, a closing actuator, a zero-cross detection circuit, a release and a voltage acquisition circuit, wherein the opening driver is respectively connected with the processor and the opening actuator; the switch-on driver is connected with the switch-on actuator and the processor; the zero cross detection circuit, the voltage acquisition circuit and the release are all connected with the processor, the switch-off actuator and the switch-on actuator are connected with a zero line of alternating current power supply voltage, and the switch-off driver and the switch-on driver are connected with a live line of the alternating current power supply voltage. The technical problems of short service life and low reliability of automatic opening and closing in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a circuit breaker with automatic closing force calibration. Background technique [0002] Intelligent circuit breakers are generally composed of contact systems, arc extinguishing systems, operating mechanisms, trip units, casings, etc. The function of circuit breakers is to cut off and connect load circuits, and cut off faulty circuits to prevent accidents from expanding and ensure safe operation. [0003] In the prior art, the operating mechanism uses an electromagnetic drive to automatically open and close the circuit breaker, and the voltage has a huge impact on it. When the voltage is high, the impact force is large, which has a great impact on the life and success rate of the circuit breaker; when the voltage is low, the closing force is insufficient. Closing failed. Therefore, how to effectively improve the service life and the reliability of automatic opening an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/12G01R31/327
CPCH01H71/10H01H71/12G01R31/327
Inventor 杨月明姚纪彭
Owner 深圳微羽智能科技有限公司
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