Design of Backup Protection Electromagnet for Electronic Moulded Case Circuit Breaker

doi:10.16628/j.cnki.2095-8188.2020.08.008

LOW VOLTAGE APPARATUS ›› 2020, Vol. 593 ›› Issue (8): 39-44.doi: 10.16628/j.cnki.2095-8188.2020.08.008

• Electrical Design Discussion • Previous Articles Next Articles

Design of Backup Protection Electromagnet for Electronic Moulded Case Circuit Breaker

ZHANG Guangzhi, JIANG Guping, DING Fei

Shanghai Liangxin Electrical Co.,Ltd.,Shanghai 200137,China

Received:2020-06-21 Online:2020-08-30 Published:2020-09-10

Abstract

Abstract:

The backup protection electromagnet in moulded case circuit breaker(MCCB) serves as the backup protection for the circuit breaker,especially in electronic product.In this paper,the principle of backup protection electromagnet and the four action stages required by backup protection and how to realize its reliability are described,and the practical application of various common backup protection electromagnets are discussed.

Key words: electronic type, moulded case circuit breaker(MCCB), backup protection, electromagnet

CLC Number:

TM561

ZHANG Guangzhi, JIANG Guping, DING Fei. Design of Backup Protection Electromagnet for Electronic Moulded Case Circuit Breaker[J]. LOW VOLTAGE APPARATUS, 2020, 593(8): 39-44.

方案	力矩/(N·mm)
方案	3 200 A	4 525 A
方案一	93.177	99.845
方案二	148.170	164.340

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Design of Backup Protection Electromagnet for Electronic Moulded Case Circuit Breaker

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