Model Meanings of YB -400 M 1 – 2
Y: Three-phase Induction Motor
B: Explosion-proof/ Flameproof
-400: Frame Size(Shaft Height)
M: Frame Length symbol (S,M,L)
1: Core code (1, 2)
-2: Poles
Description of High Voltage Explosion-proof Three-phrase Induction Motor YB 400-450 series:
This YB400-450 series flameproof/ explosion-proof three-phase induction motor adopts an internal circulation and ventilation cooling mode, and according to the operational requirements this explosion-proof motor also can be made into ExdI and ExdIBT4 type, whose safety performance fully conforms to Chinese Standard GB3836< Electrical Apparatus for Explosive Gas Atmosphere>.
Characteristics of High Voltage Explosion-proof Three-phrase Induction Motor YB 400-450 series:
This explosion-proof motor is characterized by a high efficiency, excellent performance and reasonable flameproof structure.
Applications of High Voltage Explosion-proof Three-phrase Induction Motor YB 400-450 series:
1) EExd I : This flameproof motor can be used in the underground coal mines where the explosive mixture such as methane or dust exists.
Working Conditions of High Voltage Explosion-proof Three-phrase Induction Motor YB 400-450 series:
1) Ambient temperature will change according to different seasons, but it should not surpass 35℃ (under coal mine) or 40 ℃ (factory), the lowest ambient temperature should be -15℃;
2) Local altitude should never surpass 1000m;
3) The maximum air relative humidity should be lower than 95%(while temperature keeps at 25℃)(under coal mine) or the monthly maximum mean relative temperature of the most humid month should be 90%, and meanwhile the lowest temperature of this month should not over 25℃ (factory).
4) Rated voltage is 6000V and 10000V and can generate specific voltage;
5) Rated frequency is 50Hz and can also be 60Hz.
Parameters and Specifications of High Voltage Explosion-proof Three-phrase Induction Motor YB 400-450 series: