YB2 Series Three Phase Explosion-Proof Electric Motor

YB2 Series Three Phase Explosion-Proof Electric Motor Descriptions

We are specialized in manufacturing YB2 Series Three Phase Explosion-Proof Induction Electric Motor. YB2 series flameproof three phase asynchronous motor is the upgrading of the company YB series products is a basic series of explosion-proof motor.

This series of motor power rating, mounting dimensions conform to the standards of the International Electrotechnical Commission (IEC), the corresponding relationship with the German DIN42673 standard, the matching of the export of equipment and spare parts imported equipment.

This series motors are explosion-proof performance in line with GB3836.1-2000 “explosive gas atmospheres the electrical prepare Part 1: General requirements and GB3836.2-2000” explosive gas atmospheres – electrical equipment – Part 2: Flameproof “d” ” shall also comply with IEC79-1, BS4683 and EN50018 requirements made of flameproof. The proof mark ExdI ExdIIAT4, ExdIIBT4 place with the presence of explosive gas mixtures.

YB2 Series Explosion-Proof Three Phase Electric Motors have such characteristics as high efficiency, low noise level and vibrafion, high startu torque reliable operation. The rated voltageis 380V, 660V, 380/660V, 660/1140V. The rated frequency is 50HZ or 60HZ, the power grade and mounting dimensions of the motor are same as Y2 series motors comply with IEC standard. The degree ofprotact is IP55, and the cooling method is IC411, class F insulation, they can operate constanntly at the environment at temperature of not higher than 40 degree, the eletrical performance index of YB2 series motors are same as Y2 series motors.

The explosion protect performance ofmotors comply with GB3836.1-2000″Electrical apparatus for explosive atmosphaere General requirments” and GB3836.2-2000″Electrical apparatus for explosive atmospheres, explosion-proof electrical apparatus”d” and also complywith IEC standard, it is used in the places where the ecplosive gasmixture is exisiting.

YB2 Series Three Phase Explosion-Proof Electric Motor Structural

1.The flameproof structure of the motor has Ex dI, Ex dIIAT4, Ex dIIBT4.

2.motor body shell protection class IP55.

3.The cooling mode of the motor is IC411.

4.motor insulation class for the F-class, stator winding temperature rise margin, long life.

5.The motor has a cylindrical shaft extension, driven by a coupling or gear.

6. motor stator windings using high-strength enamelled round copper wire, and vacuum pressure impregnation treatment into a complete whole, winding and insulation with good electrical, mechanical, moisture resistance and thermal stability.

7. motor rotor cast aluminum structure, the rotor by the dynamic balance check, the motor running smoothly, vibration, low noise.

8.motor set, the rotor punch with high permeability, low loss of high quality electrical silicon steel, low motor loss, high efficiency.

9.motor bearings for the use of low-vibration motor, low noise bearings, frame size 160 and below the use of double-sided sealed bearings, the end of the shaft with a wave spring washer, with moderate pressure by bearings, effectively inhibit the motor running vibration and Noise, frame number 180 and above with the inside and outside the cover structure, and in the bearing parts using the ring ring fixed, effectively prevent the motor rotor axial movement.

For the safe and reliable operation of the motor, the frame size 180 and above the motor bearing structure is equipped with oiling device, frame size 250 and above the motor, set the bearing temperature monitoring sensor location.

10.Motor fan, wind cover: Frame No. 280 and below the motor with anti-static plastic fan, the inertia of small inertia, low loss, frame size 315 and above with cast aluminum or steel plate welding fan, light weight, high strength, the whole Series fan and shaft with key connection, reliable operation. Wind cover for the steel structure, to prevent a certain size of the invasion of foreign objects under the premise of the largest ventilation area, so that the airway patency.

YB2 Series Three Phase Explosion-Proof Electric Motor Operation Range

1. Rated voltage：220V/380V/400V/415V/460V/660V or on request
2. Rated frequency：50/60Hz
3. Duty/rating: continuous(S1)
4. Flame-proof marks：Exd I，Exd II AT4．Exd II BT4
5. Protection class：IP54/IP55
6. Cooling method：IC411
7. Ambient temperature: -15℃～40℃
8. Altitude: not exceeding 1000 meters above sea level
9. Relative humidity: less than 90%

YB2 Series Three Phase Explosion-Proof Electric Motor Technical Parameter