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| Product Introduction |
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1.1 YBZ & YBZS Series flameproof three-phase asynchronous motor for hoisting and YBZE & YBZSE Series flameproof electromagnetic brake & three-phase asynchronous motor for hoisting (hereafter referred to motor ) are mainly used in electric driving for all kinds of flameproof hoisting machines.With the feature of larger loading capability and higher mechanical strength,they are typically used for devices which run for short time or spasmodically,start or brake frequently,With trayshape brake,YBZE & YBZSE series motors have good braking effect.Flameproof performances of motor should be conformed to GB3836.2-2000,part 2 flameproof definitions for electrical device under explosive gas surrounding.There are two types marked Exd ll BT4 and Exd ll CT4 respectively.They can be applied on location with explosive mixture of air with flammable gas or vapour with transmission level of detonation not more than IIB & IIC and igniting temperature group from T1 to T4 .Based on YBZ Series flameproof three-phase asynchronous motor for hoisting. YBZP Series flameproof three-phase conversion & timing asynchronous motor for hoisting and melting will be derived.Based on YBZE Series flameproof electromagnetic brake & three-phase asynchronous motor for hoisting.YBZPE Series flameproof electromagnetic brake & three-phase conversion & timing asynchronous motor for hoisting and melting will be derived.
1.2 Protection level and cooling method of motor
1.2.1 Protection level for motor shield is IP44,and is also IP54 if necessary.Protection level for terminal box is IP54,
1.2.2 Cooling method for motor;IC410 for base frame 112 to 132 ,IC411 for base frame 160 to 250.
1.3 Insulation class for motor is F and H.Motor with insulation class F can be applied at the location where surrounding air temperature is no more than 40℃ ,while motor with insulation class H can be applied at the location where surrounding air temperature is no more than 60℃.
1.4 Motor can be applied under following operating surrounding;
a、Surrounding air temperature:-15℃-40℃ under common surrounding,no more than 60℃ under melting surrounding
b、Altitude:no more than 1000m above sea level.
c、Rated frequency:50Hz or 60Hz
d、Rated voltage:380V or 440V
e、Starting,braking (electrically or mechanically) and reversing frequently
f、Surrounding air humidity:no more than 90% (25)℃
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