Speed regulating motor

Yjtg three-phase variable frequency speed regulation motor achieves the purpose of motor speed regulation by changing the power supply frequency. In addition to the advantages of broadband and energy saving, the biggest advantage is to effectively limit the starting current. That is, the frequency converter is used for operation, and the frequency and voltage are increased accordingly with the acceleration of the motor, and the starting current is limited to less than 150% of the rated current (125% ~ 200% according to different models). When starting directly with power frequency power supply, the starting current is 6 ~ 7 times, so it will produce mechanical and electrical impact. It can be started smoothly by using frequency converter drive (the starting time becomes longer). The starting current is 1.2 ~ 1.5 times of the rated current, and the starting torque is 70% ~ 120% of the rated torque; For the frequency converter with automatic torque enhancement function, the starting torque is more than 100% and can be started with full load.

Operating conditions of yjtg three-phase variable frequency speed regulation motor:

The ambient temperature shall not exceed - 15 ℃ ~ + 40 

Altitude not exceeding 1000M

Motor protection grade IP44

Rated voltage 380 (220) V ± 10%

Working system: continuous S1

Insulation grade of motor: Class F

Rated frequency 50Hz

Yjtg three-phase variable frequency speed regulation motor sometimes needs to be used with frequency converter. At present, variable frequency speed regulation is widely used internationally, because variable frequency speed regulation has the following advantages:

1. High efficiency and remarkable energy saving;

2. Smooth speed regulation, stepless speed regulation in the range of 5 ~ 100Hz;

3. When starting at low frequency, the torque has little impact on the load;

4. Small starting current, no additional starting equipment;

5. Small size, light weight and the same installation size as Y Series;

6. Axial flow fan is installed in the hood, which has good cooling effect at various speeds;

7. Wide range of applications, constant torque operation below 50Hz and constant power operation above 50Hz;

8. Compared with electromagnetic speed regulating motor, it has the advantages of energy saving and consumption reduction, wide speed regulating range, simple structure, reliable use and convenient maintenance.