YTSP series variable frequency speed regulation three-phase asynchronous motor

I. Overview

With the development of power electronics technology, the AC variable frequency speed control system is also developing rapidly. In order to meet the needs of the market, the production plant researched and collected relevant data at home and abroad, and developed the YTSP series variable frequency speed regulation three-phase asynchronous motor. The performance indexes of the motor are equivalent to those of foreign countries in the 1980s, and the basic technical conditions are in accordance with the IEC34-1 and GB755 international and national standards. The motor has low noise, small vibration, wide speed range and novel appearance.

YTSP series variable frequency speed regulation three-phase asynchronous motor is specially designed for use with various high-performance IGBT pulse width modulation inverters at home and abroad. Generally, it is not necessary to use an external filter.

The motor combines the advantages of similar products at home and abroad and is designed using computer-aided design techniques. In order to adapt the motor to the condition of PWM variable frequency power supply, special considerations have been given to the stator, rotor slot and stator winding distribution to obtain a suitable inductance value to suppress and reduce time harmonics. And the adverse effects of a series of motor space harmonics caused by it. The electromagnetic load design of the motor also takes into account a certain margin, thus ensuring the overload capability of the motor at high frequencies and maintaining a constant torque output during low frequency operation.

The design of the motor insulation structure takes into account the influence of the high chopping frequency of the PEM inverter using IGBT. In particular, the inter-turn insulation is reinforced by special measures in order to withstand the severe test caused by the extremely steep surge voltage that is repeatedly dragged between the coil turns due to the high voltage rise rate. The inter-turn voltage withstand test value of the motor far exceeds the JB/Z346-1989 regulations for AC motors.

In terms of structural design, the YTSP series is installed in the same size as the Y series for user matching and selection. The motor uses a unique cooling structure that uses a separate axial fan to force the air. It ensures that the temperature rise of the motor does not exceed the allowable value when the motor is running at low speed and constant torque for a long time.

When the motor is tested, it is powered by the inverter power supply, which is in line with the actual working conditions.

The motor (IC416 cooling) can be used in a variety of transmissions that require speed regulation. Widely used in light industry, textile, chemical, metallurgy, machine tools and other industries, with high-precision sensors, can achieve high-precision closed-loop operation.

The insulation grade of the motor is F grade, and the insulation structure has strong adaptability to the inverter output high carrier frequency voltage.

The speed regulation range of the motor is 3~50Hz for constant torque speed regulation under the condition of open loop υ/ƒ control, and 50~100Hz is constant power speed regulation; under the condition of vector control, the speed regulation range can be expanded.

The overload capacity of the motor can withstand 160% of the rated torque overload for 1 min.

The low speed performance of the motor is good, the torque is smooth at low speed, and there is no creeping phenomenon.

The wiring method of the motor is Y-connection of 250mm and below, and △ coupling by 280mm and above.

The operating conditions are ≦1000m; the ambient temperature is ≦40°C; the relative humidity is ≦90%; the working system is continuous operation (S1); the rated voltage is 380V, the rated frequency is 50Hz, and the rated point voltage can also be determined according to user requirements. And frequency.

Model meaning

The YTSP series (IC416) motors feature a unique cooling structure that uses a separate axial fan to force air (in a fully enclosed external axial cooling). It is also possible to make a base cooling method as needed.

The motor's enclosure is protected to IP44 and can be made to IP54 as required.

The mounting structure of the motor is various structural types such as IMB3, IMB7, IMB8, IMV5, IMV6, IMB5, IMV1, IMV3, IMB35, IMV15 and IMV36.

High resolution sensors (photoelectric encoders, resolvers and tachogenerators) are available upon request.

According to the user's request, it can be equipped with accessories such as electromagnetic brakes and gear reducers.

YTSP series (IC416) variable frequency speed regulation three-phase asynchronous motor technical data (H90 ~ 355mm)