YB series high voltage flameproof three-phase asynchronous motor is closed with the international advanced level of self cooled squirrel cage asynchronous motor. This series motors adopt the new national standards and International Electrotechnical Commission IEC standard, the power range of 160 - 500kW, rated voltage 6kV, rated frequency 50Hz. The motor meets GB3836.1 1983 "electrical apparatus for explosive atmospheres - General requirements" and GB3836.2 1983 "electrical apparatus for explosive gas atmospheres of flameproof electrical apparatus" d "" provisions, made of flame-proof type, explosion-proof mark for dI, dIIAT4, dIIBT4. Suitable fordangerous places with explosive gas mixture. "DI" for non working face place in earlyalkyl or coal dust explosive mixture of existence; "dIIAT4" is suitable for the factory withIIA class T1 - T4 group explosive gas mixture places; "explosive gas mixture of dIIBT4"is suitable for factories with IIB stage T1 of the T4 group of the field.
The enclosure of motors is IP44 or IP55, the terminal box IP54. This series motors can be made into wet tropical type "TH" and "W" type of outdoor motor.