Shengzhou Chaoli Electric Appliance Factory

Frequently asked questions

──Jan 14 , 2021What are the technical advantages of variable frequency motor in three-phase asynchronous motor?

Variable frequency speed regulating motor referred to as variable frequency motor, is a general term for the motor driven by frequency converter, the advantage is that it has a starting function; The electromagnetic design reduces the resistance of stator and rotor. Adapt to frequent speed changes under different working conditions; Energy saving to a certain extent. At present, it has become the mainstream speed regulation scheme, which can be widely used in all walks of life. Belong toThree-phase induction motorToday, Senli Motor Xiaobian on his technical characteristics and excellent performance to give you a brief introduction.

Frequency converter is a power control device that converts the power frequency power supply to another frequency by using the on-off action of power semiconductor devices.21At the beginning of the century, the frequency converter used mainly used alternating-straight-Intersection mode(VVVFFrequency conversion or vector control frequency conversion)First, the power frequency AC power supply is converted into DC power supply through the rectifier, and then the DC power supply is converted into the frequency and voltage can be controlled AC power supply to supply the motor. The circuit of the inverter is generally composed of rectifier, intermediate DC link, inverter and control4It consists of two parts. The rectifier part is a three-phase bridge type uncontrollable rectifier, and the inverter part isIGBTThree-phase bridge inverter, and the output isPWMWaveform, the middle DC link for filtering, DC energy storage and buffer reactive power.

Technical features:

Variable frequency motor high efficiency:

Reach EuropeCEMEP-EUEfficiency grade motor standard secondary value, in line with national standardsGB18613-2002Energy efficiency limits for small and medium-sized three-phase asynchronous motors.

Inverter motor double bandwidth voltage:

Voltage range220V~690V, applicable50Hzand60HzPower.

Inverter motor low noise:

By optimizing electromagnetic design, ventilation conditions, structural dimensions and other technologies,M2JASeries motors have low noise.

Variable frequency motor bearing high load capacity:

Motor selection of deep groove ball bearings, long life,80-132High center motor for long-term lubrication,160-355A refueling device is provided.

Variable frequency motor reliability is good:

What are the technical advantages of variable frequency motor in three-phase asynchronous motor?

The motor is completely enclosed air-cooled structure with protection gradeIP55Materials and processes meet environmental requirements. The motor has high mechanical strength, robustness and durability, and strong anti-rust and anti-corrosion properties. The winding reliability is good, adoptedFClass insulation structure,BGrade assessment. And can be increased according to user needsPTCThermistor or thermistor switch.

This series of motor power from0.25KW-315KWThe center of the frame is high71mm-355mm. It can be widely used in light industry, textile, chemical industry, metallurgy, machine tools and other industries that need speed regulating rotation devices. It is an ideal speed regulating power source.

Variable frequency motor advantages:

1Have a starting function;

2Electromagnetic design is adopted to reduce the resistance of stator and rotor;

3Adapt to the frequent speed change under different working conditions;

4Energy saving to a certain extent;

"Mori machine"The brand belongs to Shengzhou Chaoli electric appliance Factory. have3600Square standardized factory, with equipment CNC lathes/End facing machine/Grinding machine/Drilling machine/Automatic threading machine/Automatic winding machine/Comprehensive tester/Vacuum dip paint machine/Drying machine/Dynamic balancing machine/Punching machine, etc. Annual production capacity12Ten thousand units. Motor performance can be customized according to the needs of the equipment host, technical engineers one-to-one, from the motor power, performance parameters, insulation level, installation mode, size, etc., issue the overall customized solution of non-standard motor.

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