Design of a new type of intrinsic safety pilot circuit of magnetic starter

TONG Jun; YIN Hongyu; ZHANG Chengmin; QIU Wendong

doi:10.13272/j.issn.1671-251x.2014.03.006

Volume 40 Issue 3

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TONG Jun, YIN Hongyu, ZHANG Chengmin, et al. Design of a new type of intrinsic safety pilot circuit of magnetic starter[J]. Industry and Mine Automation, 2014, 40(3): 22-24. doi: 10.13272/j.issn.1671-251x.2014.03.006

Citation:

TONG Jun, YIN Hongyu, ZHANG Chengmin, et al. Design of a new type of intrinsic safety pilot circuit of magnetic starter[J]. Industry and Mine Automation, 2014, 40(3): 22-24. doi: 10.13272/j.issn.1671-251x.2014.03.006

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Design of a new type of intrinsic safety pilot circuit of magnetic starter

doi: 10.13272/j.issn.1671-251x.2014.03.006

1.
College of Electrical and Control Engineering, Xi''an University of Science and Technology, Xi''an 710054, China
2.
Technology Center, Yongji Xinshisu Electric Equipment Co., Ltd., Yongji 044502, Chin

Publish Date: 2014-03-10

Abstract

Abstract

In view of shortcoming that intrinsic safety pilot circuit controlled by relay exists unstable faults of self-starting and low-voltage starting, a new type of intrinsic safety pilot circuit with optical coupling isolation of mine-used magnetic starter based on microcomputer control was designed, working principle of the circuit was introduced in details. The practical application shows that the pilot circuit has reliable performance and stable operation.
- mine-used magnetic starter,
- intrinsic safety circuit,
- pilot circuit,
- optical coupling isolatio