Open AccessResearch on Short Time Withstand Current Electrodynamic Analysis and Inspection Technology of Mine High Voltage Distribution Device
Author(s) -
Jianfeng Zhu,
Zhang Hongku,
Xuliang Zhao,
Yu Wenhai,
Mingjie Shao,
Shi Lei
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/692/4/042065
Subject(s) - coal mining , electromagnetic coil , engineering , voltage , electrical engineering , transformer , reliability engineering , short circuit , electrical equipment , interlocking , automotive engineering , distribution transformer , switchgear , current (fluid) , high voltage , current transformer , coal , waste management
In this paper, combined with the situation of coal mine safety production in China, the use environment and mechanical interlocking function of mining high-voltage distribution equipment are introduced in detail, the short-circuit fault hazards and the working principle of short-circuit protection are analyzed, and the technical requirements for short-time withstand current capability test are put forward in combination with industry standards. The short-time withstand current capability test system of mining high-voltage distribution equipment is designed, and the working principle of Roche coil current transformer is studied.