I. Overview of YVFE3 series ultra-efficient variable frequency speed regulating motor:

YVFE2/E3 series variable frequency speed regulation three-phase asynchronous motor is a new generation of variable frequency speed regulating motor developed on the basis of introducing foreign advanced technology and summarizing the experience of YJT series variable frequency speed regulating motor produced by our factory for many years.

In terms of electromagnetic design, the stator, rotor slot and winding form, connection method, etc. are adjusted to adapt to the power supply of the inverter, and it can not only ensure the overload capability of the motor at high frequencies, but also Maintain constant torque output at low frequencies. In terms of structural design, the installation size is the same as that of the Y series motor. Except for the small length, the other dimensions are the same as those of the Y series motor, and the interchangeability is strong, which is convenient for users to use. This series of motors adopts independent axial flow fan forced ventilation to ensure that the motor has good cooling effect in the whole frequency range, and the temperature rise does not exceed the specified value.

Compared with other speed control methods, YVFE2/E3 series variable frequency speed regulation three-phase asynchronous motor and frequency conversion device have remarkable energy saving effect, good speed regulation performance, wide speed regulation range, low noise and small vibration. With the characteristics of various inverters at home and abroad, it can be widely used in the fields of constant torque and constant power speed regulation in light industry, textile, chemical, metallurgy, machine tools and other industries, as well as energy-saving speed regulation of fans and pumps. To achieve automatic control of the speed control system.

The 4-pole motor of YVFE2/E3 series motor complies with the requirements of JB/T7118-93 of "Small-scale variable-voltage variable-speed speed-regulating motor and power supply technical conditions". Other pole motors comply with IEC34-1 and also comply with GB/T755. .

Second, YVFE3 series ultra-efficient variable frequency speed control motor model description

Take YVFE2/E3-200L1-6 as an example: YVFE2/E3 represents the motor model; 200 represents the center height (mm); L represents the frame length code; 1 represents the core length code; 6 represents the motor pole number.

Third, YVFE3 series ultra-efficient frequency conversion motor use conditions

1. The altitude does not exceed 1000m.

2. The ambient air temperature varies with the season, but does not exceed 40 °C, and the minimum does not exceed -15 °C.

3. The average wet humidity of the wettest month is 90%, and the monthly minimum temperature of the month is not higher than 25 °C.

Fourth, YVFE3 series ultra-efficient frequency conversion motor structure

1. The enclosure protection rating is IP55.

2. The cooling method is fully enclosed axial fan cooling (IC416).

3, according to user requirements can bring a variety of high-resolution sensors (photoelectric coder, rotary transformer and tachogenerator).

4, according to user requirements can bring electromagnetic brake equipment (power, power failure can be), gear reducer and other accessories.

5, from the shaft extension end, the motor junction box is located on the right side of the base, or can be located on the left or top of the base according to user requirements.

V. Main technical performance and technical parameters of YVFE3 series ultra-efficient variable frequency speed regulating motor

1. The motor is a continuous working system.

2. The rated voltage is 380V and the rated frequency is 50HZ. The voltage and frequency of the rated point can also be determined according to user requirements.

3. The insulation grade is F grade.

4, H80-255 center height, 5-50HZ for constant torque speed regulation, H250-355 center height, 3-50HZ for constant torque speed regulation, 50-100HZ for constant power speed regulation. The high frequency range can also be determined according to user requirements.

5. Strong overload capability.

6, low speed performance is good.

7, 280 and below frame number is Y connection, 315 355 is △ connection method.

Sixth, YVFE3 series ultra-efficient frequency conversion motor installation form