Simulation Study of DC Circuit Breaker Magnetic Release Characteristics Based on Saturation Magnetic Circuit

doi:10.16628/j.cnki.2095-8188.2024.10.011

Abstract

Abstract:

The magnetic release is the key component of DC circuit breaker,which directly determines the short circuit protection performance of DC circuit breaker.The magnetic release based on saturation magnetic circuit is modeled and simulated to obtain the magnetic curve of different currents,and the characteristics of the magnetic release based on saturation magnetic circuit are compared with the traditional single magnetic circuit magnetic release.The results prove that the magnetic release based on saturation magnetic circuit has higher release accuracy and operation reliability,which provides a basis for the design and optimization of magnetic release.

Key words: DC circuit breaker, magnetic release, saturation magnetic circuit, simulation study

CLC Number:

TM561

HAN Wei, ZHU Zhongjian, YI Chenchen, MENG Fanfei, QIU Zhongjun, XI Jie. Simulation Study of DC Circuit Breaker Magnetic Release Characteristics Based on Saturation Magnetic Circuit[J]. LOW VOLTAGE APPARATUS, 2024, 0(10): 65-71.

铜排承载电流/A	衔铁从0 mm位移至2 mm位移的受力变化/N
铜排承载电流/A	传统磁路	基于饱和磁路
500	9	326
1 000	37	365
1 500	84	415
2 000	147	460
2 500	219	515
3 000	276	574
3 500	296	624
4 000	295	643
4 500	305	651
5 000	315	690
5 500	313	693
6 000	321	685

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Simulation Study of DC Circuit Breaker Magnetic Release Characteristics Based on Saturation Magnetic Circuit

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