Mine Flameproof Vacuum Switch Based on HOLLiAS Modular PLC;

On type BQC-25 flameproof portable starter used in coal mine;

A New Manufacturing Process for the Stator Cramp of Flameproof Motor;

Heat dissipation of the flame-proof and intrinsically safe frequency converter

The paper introduces chiefly the development of manufac turing dry-type flame-proof transformer with epoxy casting.

A new kind of explosion-proof soft starter used for mining is develop.

In accordance with the reform and practice of the governing system of explosion-proof and nature-safe model all-digital frequency conversion winch, introduces the principle and character of the application of AFE technology in achieving frequency converter movement in four quadrants.

That brings some new subject to power electronic and electric drive,for example,research on explosion suppression induction motor design,analysis and research on temperature field with supplying by transducer.

In terms of gap tests of TNT and JH-2, they were approximatively achieved that were gap distances on the conditions of air and polyurethane foam by qualitative analysis, and conclusion was that copper liner effects on gap distance when applied conditi.

This paper elaborated the conditions of explosion under the coal mine pithead,and then introduced the building modules of the explosion insulation motor detection system.