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YVF/YVF2 series variable frequency drive ac motor is the latest generation of special three-phase asynchronous motors for variable frequency speed regulation launched by our company. This vfd drive motor is a universal variable frequency speed regulating motor developed and designed on the basis of Y/Y2 series motors. It can be well matched with the inverters of different manufacturers in the current market, and the frequency conversion range is 5-100Hz or 3-100Hz. YVF motor has the advantages of high efficiency, low noise, obvious energy saving effect, stable driving, wide speed range, fast response and excellent performance. This series of motors are widely used in applications requiring high-precision speed regulation such as numerical control, textiles, metallurgy, etc., and can also be applied to fan and water pump loads for the purpose of energy saving. The average energy saving rate of a single machine can reach 30-60%.
Product Detail
Motor Type: frequency drive motor
Output Power: 0.55kW - 30 kW
Frame Size: IEC 80 - 200
Rated Voltage: 380V
Frequency: 50 / 60 Hz
Protection Level: IP54 / IP55
Insulation Class: B / F
Cooling Method: ICO141
Working Duty: Continuous (S1)
Product Parameter (specification)
Production Features
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Service and Packing
The difference between variable frequency motor and ordinary motor
1. Harmonic electromagnetic noise and vibration
Liyuan Motors When ordinary asynchronous motors are powered by frequency converters, the vibration and noise caused by electromagnetic, mechanical, ventilation and other factors will become more complicated. The time harmonics contained in the variable frequency power supply interfere with the inherent spatial harmonics of the electromagnetic part of the motor to form various electromagnetic exciting forces. When the frequency of the electromagnetic force wave is consistent with or close to the natural vibration frequency of the motor body, resonance will occur, thereby increasing noise. Due to the wide operating frequency range of the motor and the wide range of rotation speed, the frequency of various electromagnetic force waves is difficult to avoid the natural vibration frequency of each component of the motor.
2. The adaptability of the motor to frequent starting and braking
Since the inverter is used for power supply, the motor can be started at a very low frequency and voltage without inrush current, and various braking methods provided by the inverter can be used for rapid braking, in order to achieve frequent starting and braking. The conditions are created so that the mechanical system and electromagnetic system of the motor are under the action of cyclic alternating force, which brings fatigue and accelerated aging problems to the mechanical structure and the insulating structure. 5. Cooling problem at low speed
First of all, the impedance of the asynchronous motor is not ideal. When the frequency of the power supply is lower, the loss caused by the higher harmonics in the power supply is relatively large. Secondly, when the rotation speed of an ordinary asynchronous motor decreases, the cooling air volume decreases in proportion to the third power of the rotation speed, resulting in the deterioration of the low-speed cooling condition of the motor and the sharp increase in temperature rise, making it difficult to achieve constant torque output.
