YFB2 series dust explosion-proof three-phase asynchronous motor

Product information

YFB2 series dust explosion-proof three-phase asynchronous motor is a fully enclosed self-cooling squirrel cage three-phase asynchronous motor. This series of motors has small size, light weight, reliable operation, beautiful appearance, high efficiency, large temperature rise margin, and small vibration , Low noise, large starting torque, advanced explosion-proof structure and other advantages. The power level and installation dimensions comply with the National Standards Electrician Commission (IEC) standard, and the corresponding relationship is basically the same as the German DIN42673 standard.

This series of motor housings are divided into two types: dust-tight and dust-proof according to their ability to restrict dust from entering the motor housing. The protection levels of the housings are IP6X and IP5X.

Features

①The shell has a high degree of sealing to reduce or prevent dust from entering the shell, even if it enters, it will not cause an ignition hazard.

② The allowable temperature of the highest surface of the control enclosure does not exceed the specified temperature group, which complies with the national standard.

③While ensuring the explosion-proof performance, optimize the motor design so that its efficiency reaches the energy efficiency level 3 in the national energy efficiency standard (GB18613-2012)

Product structure

① Stator: The stator core is made of high-quality electrical silicon steel sheet that has been oxidized. The electromagnetic wires and insulation are made of polyesterimide enameled wire and high-quality insulation. The stator core with windings is vacuum high-pressure dipped to make it a complete whole. Has excellent electrical, mechanical, moisture-proof and thermal stability. Insulation material adopts class F insulation, but the temperature rise limit is evaluated according to class B, the temperature rise margin is large, and the service life is long.

②Rotor: The cast aluminum rotor is fixed on the shaft by a hot sleeve process. After dynamic balance verification, the motor runs smoothly, with small vibration and low noise.

③Bearing and bearing room: The bearing adopts special bearing for electric motor, and the small-frame motor adopts double-sided sealed bearing. The wave extension spring is installed in the bearing end of the shaft extension end, pressing the non-shaft extension end bearing structure with moderate elastic force to prevent axial channeling Reduce the vibration and noise during the operation of the motor; the large-frame motor adopts open bearings, and the bearing parts have oil injection and oil discharge devices, which can be filled with grease without stopping the machine.

④Fan and wind hood: the whole series of fans and shafts use key coordination, and the operation is reliable. The wind hood is a thin steel plate structure, which obtains the maximum ventilation area under the premise of preventing foreign objects of a certain size from entering, so that the wind path is smooth and the appearance is beautiful. .

Conditions of Use

①The ambient air temperature changes with the season, but it does not exceed 40℃, and the minimum ambient air temperature is -15℃.

② The altitude does not exceed 1000m.

③The average maximum relative humidity of the wettest month and month is 90%, and mean minimum temperature of the month and month is not higher than 25℃.

④Quota is a continuous quota based on the continuous work system (S1).

⑤The rated frequency of the motor is 50Hz and the rated voltage is 380V.