YBX3 Series(IP55)flameproof three-phase asynchronous motor

General Description：

YBX3 Series Flameproof Three Phase Asynchronous Motors is a replacement product ofYB3 series. Its the poweirating and mounting dimensions conform to the standard for the lEC & DIN42673 of Germany. It has a fully enclosedself-cooling fan, squirrel cage structure, and with a novel design, compact structure, good starting performance, lownoise and convenient maintenance, more advanced technology and high efficiency, etc. The explosion-proofperformance of the motor is in accordance with China National Standard of No GB3836.2-2000《 Electrical apparatusfor explosive gas atmospheres Part 2: Flameproof enclosure “d”》. At the same time, it accord with the standardrequirement such as lEC79-1, BS4683 1-3 &BS EN50018:2000. The explosion protection marks will be Exd l Mb、Exd ll BT4 Gb respectively.

Conditions of Use

Electrical conditions

voltage:380V,660V,1140V,380/660V or660/1140V

frequency:50Hz

Circumstance conditions

Ambient temperature:more than-15℃ and less than 40℃

Altitude:lower than 1000 meters above sea level

Structure and characteristics

(1)Explosion-proof motor structure for Exd I Mb 、Exd ll BT4 Gb

(2)The motor body housing protection grade is Ip55

(3)Motor cooling method is Ic411

(4)Motor insulation class is class F.The temperature rise margin of the stator winding is large,long life.

(5)The motor windings made of the high strength polyester paint enamelled round copper wire,and by VPI vacuum pressure impregnation treatment,its winding and insulation have good electrical,mechanical,moisture resistance and thermal stability.

(6)Cast aluminum structure rotor,all rotors will be to pass dynamic balance check,motor running smoothly, small vibration and low noise.

(7)The motor stator and rotor laminations using the silicon steel sheet with high permeability,low-loss,high- quality electrical,motors,low loss,high efficiency.

(8)Select and use special low vibration,low noise bearings for motors.Frame size No160 and below using double-sided sealed bearings,the shaft end fitted with wave Shaped spring washer to effectively suppress the vibration and noise generated during operation of the motor.Frame size 180 and above,inside and outside cover knot configuration,supplemented with a ring to control the motor shaft axial movement of the rotor;while the bearing position with the extraction of oil equipment.Frame size No250 and Its more motors,aside bearing temperature monitoring sensor mounting position.

(9)Motor fan

It has a anti-tatic plastic fan for the motor,small moment of inertia and low loss.

(10)Motor hood

Made of steel structure,in preventing the intrusion of foreign objects of a certain size prerequisite for maximum ventilation area,to keep the wind open.

YBX3 Technical parameters