The principle of YVP variable frequency speed regulation motor
The YVP series variable frequency speed regulation asynchronous motor achieves motor speed regulation by changing the power supply frequency. It is based on the principle (formula):
n=60f/p
In the formula: n - speed per minute p - pole pairs f - frequency (China's power grid standard is 50Hz).
From the above formula, it can be seen that when the number of motor poles is constant, the frequency changes and the motor speed will also change accordingly. By changing the power supply frequency through a frequency converter, the purpose of speed regulation can be achieved.
Characteristics and strengths of YVP variable frequency speed regulating motor
Variable frequency motors must be used in conjunction with frequency converters, and variable frequency speed regulation is a commonly used AC motor speed regulation method internationally. Variable frequency speed regulation has the following advantages:
1. High efficiency and significant energy saving;
2. Smooth speed regulation, capable of infinite speed regulation within the range of 5-100Hz;
3. When starting at low frequency, the torque has little impact on the load;
4. The starting current is small and no additional starting equipment is required;
5. Small size, light weight, and the same installation dimensions as the Y series;
6. An axial flow fan is installed inside the hood, which has good cooling effect at various speeds;
7. Wide application range, capable of constant torque operation between 5~50Hz and constant power operation above 50Hz;
8. Compared to electromagnetic speed control motors, it is more energy-efficient and cost-effective, with a wide speed range, simple structure, reliable use, and easy maintenance.
Model designation of YVP variable frequency speed regulating motor
Usage conditions of YVP variable frequency speed regulating motor
Environmental temperature: -15 ℃ to 40 ℃
Altitude: < 1000M
Power supply voltage: 380V
Rated frequency: 50Hz
Insulation level: F level
Working mode: S1
Protection level: IP44
Installation dimensions of YVP variable frequency speed regulating motor