Design of novel intrinsically safe power supply with 'ia' grade

Autor:	YU Zhixue, FANG Xupeng, ZHAO Yang
Jazyk:	čínština
Rok vydání:	2017
Předmět:	mine-used power supply intrinsic safety type 'ia' protection grade over-voltage protection of dual redundancy over-current protection of three redundancy Mining engineering. Metallurgy TN1-997
Zdroj:	Gong-kuang zidonghua, Vol 43, Iss 8, Pp 83-86 (2017)
Druh dokumentu:	article
ISSN:	1671-251X 1671-251x
DOI:	10.13272/j.issn.1671-251x.2017.08.016
Popis:	According to working condition of mine-used power supply in coal mine underground, novel intrinsically safe power supply with 'ia' grade was designed. The power supply uses a fully enclosed AC-DC module to eliminate special flameproof enclosure, and has over-voltage protection circuit of dual redundancy and over-current protection circuit of three redundancy. The experimental results show there is no spark when the power supply load is short circuited under the conditions of no fault, one counting fault and two counting faults, which realizes intrinsic safety.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/12624ce654a74afab7d5924bb1d0b239 Zobrazit plný text záznamu View record in DOAJ