Study of ultra-high-speed power switching-off of SSCB for coal mine low-voltage system

Author

Yan Gao ; Yan-wen Wang ; Feng-lin Ma

Author_Institution

Mech. & Electr. Inf. Eng. Inst., China Univ. of Min. & Technol., Beijing, China

Volume

3

fYear

2011

fDate

8-9 Sept. 2011

Firstpage

349

Lastpage

352

Abstract

This paper analyses the reality of traditional three phase AC contactless switch, and points out the inherence break time is over 10ms. It puts forward using IGBT as the main component of solid state circuit breaker for the transformer neutral point´s contactless switch. This enables that the operating time of ultra-high-speed short circuit protection is less than 1ms. In addition, this paper has proposed a transient mathematical model for a turning-off process of transformer neutral point SSCB. The total switching-off time has been obtained by theoretical analysis and validated by tests.

Keywords

circuit breakers; coal; insulated gate bipolar transistors; mining; power system protection; IGBT; SSCB; coal mine low-voltage system; inherence break time; solid state circuit breaker; three phase AC contactless switch; transformer neutral point contactless switch; turning-off process; ultra-high-speed power switching-off; ultra-high-speed short circuit protection; Circuit breakers; Educational institutions; Equations; Insulated gate bipolar transistors; Mathematical model; Switches; Switching circuits; IGBT; SSCB; solid state circuit breaker; ultra-high-speed interruption;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering and Automation Conference (PEAM), 2011 IEEE

Conference_Location

Wuhan

Print_ISBN

978-1-4244-9691-4

Type

conf

DOI

10.1109/PEAM.2011.6135109

Filename

6135109