YBK2- (80-355) Series coal mine explosion-proof three-phase asynchronous motors for coal mine mining face special motor mechanical design, formed by a welded steel frame hood,terminal boxes, insulation measures taken to strengthen the structure, the main for coal mine harsh working environment.
This series of explosion-proof motors comply GB3836.1-2010 "explosive atmospheres - Part 1: General requirements for equipment" and GB3836.2-2010 "Explosive atmospheres - Part 2: by flameproof frame" d "protection devices" provides system into a flameproof ExdI Mb. Suitable for methane or coal dust explosive mixtures dangerous places exist.
This series of motors in addition to the base, hood,terminal boxes have special requirements, the remaining electrical performance, installation dimensions, rated power etc, YB2 series motors same.
Using condation :
Altitude does not exceed 1000m;
Ambient temperature maximum temperature changes with the seasons, but not more than 35 ℃;
The ambient air temperature is the lowest -15 ℃;
The maximum relative humidity of ambient air does not exceed 95% (when the temperature is 25 ℃);
Rated voltage: 380V, 660V, 1140V, 380 / 660V, 660 / 1140V;
Rated power: 50Hz;
Motor body shell protection grade IP55, in line with the provisions of GB / T4942.1's. Cooling method is IC411 comply with GB / T1993's.
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