Explosion-proof devices of the electrical drive control of ЭМДВ type are designed (with the use of ABB ACS800 frequency converters modules) to control the running speed of the trains of the underground rope roads, conveyers and hoist in the coal mines hazardous of gas (methane) and coal dust. The devices control the asynchronous electrical motors with squirrel-cage rotor in the electrical networks of the three-phase AC voltage with the isolated neutral.
The devices have the «flameproof» explosion protection level; their explosion protection types are «flameproof enclosure» and «intrinsically safe electrical circuit»; explosion protection marking is Ex d ia I according to IEC 60079. Environment protection degree is IP54 according to IEC 60529. Climatic version and location category class 3K6 according to IEC 721-3-3-87.
The devices are manufactured for both the inner market and export.
Designer and Manufacturer: PJSC “DEG”.