YZTD changing- poles multi -speed three-phase motor for tower crane

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1 set
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10000 set/month

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Product Description:

 Packaging & Delivery

Packaging Details:   Carton/ Wooden box or according to customer's requirement

Delivery Detail:        Within 20 days after30% deposit

  1. Prompt Quotation, Competitive Price

  2. 100%tested, Guaranteed Quality, 100% copper wire,  Cold-rolled silicon steel sheet 

  3. Good performance. 

  4. Energy saving ,Long working life .

  5. motor with ISO9002-2000, CCC, CE

YZTD Series is specially developed for tower crane and other construction machinery electric drives. It is up to the demand of  national standard GB755-87"the bisic technology demand of rotary electric motor"and industrial standard"YZTD variable poles multi speed three-phase motor for tower crane". the product's features are high speed ratio, low starting current, high starting torque, strong overload capacity, simply operation and convenient maintennance,etc.

 Detailed information:

  • Power range: 0.5-315kw.

  • Poles: 4//16/24.

  • Protecting level: IP44/IP54

  • Cooling way: IC411.

  • Installation way: B3 or customization.

  • Rated voltage: 380v / 440v.

  • Rated frequency: 50Hz/ 60Hz.

  • working method: high speed, medium speed S3-40%, low speed S3-25%.

  • Working temperature: F:-20°c to 40°c, H:  -20°c to 60°c .

  • Altitude:  lower than 1000m. 

  • Addition: Can be made according to your requirements


  • High efficiency and low energy consumption.

  • Low noise and vibrate.

  • Simple operation.

  • Easy maintenance.

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Q:How do ac motor maintenance and maintenance?
Check for the reliability and integrity of electrical and start-up equipment, and the connection is correct and good. Check the voltage, frequency and frequency of the motor nameplate. Prior to the start of the new installation or suspension of the electric motor, the relative phase of the winding and relative insulation resistance should be checked before starting. The insulation should be more than 0.5 trillion euro, and if it is below this, the winding should be dried. 4, should inspect the brush device on the ring of the circuit to be able to work normally, the brush pressure is in accordance with the requirement. Check whether the motor is flexible and whether the oil in the sliding bearing meets the required oil level. Check whether the rated current of the fuse is required. Check the bolts and bolts of the motor to be tightened.
Q:380v's ac motor operates under 330v voltage
Because the motor is not loaded
Q:Direct current motor and ac motor, which is large, good, who invented
As with the above, each has its own purpose, just like your hands and feet. Which one do you say is more useful?
Q:The electric spark machine USES ac motor or dc motor!
The upstairs talk is too absolute. The control mode of the spark machine is relatively simple, and the power of the motor is smaller, under 100W. Most electric spark machine is made of dc servo motor and electronic ruler.
Q:Ac motor power frequency conversion
The output frequency is the maximum 600Hz, which can control high-speed motor The all-around detection protection function (overpressure, undervoltage, overload) is instantaneous without power Noil accelerates, decelerates, and loses speed to prevent the protection function The dynamic parameter automatic identification of the noil motor ensures the stability and precision of the system The response is fast when the noil is down fast It has abundant and flexible input, output interface and control mode It adopts SMT full-stick production and three anti-coating process, the product is stable and high The whole series adopts the latest Siemens IGBT power device to ensure the quality of quality
Q:What is the speed of the general motors
There are many different speeds of the motor, the synchronous motor is n = 60f/p, and the asynchronous motor can be changed at the same speed, which is related to the synchronous speed
Q:Is the squirrel-cage motor communicating in three phases?
The small and medium squirrel cage asynchronous motor can be directly started directly, the direct starting equipment is simple, the method is simple. But the starting current is large and the torque is small. Large capacity of squirrel-cage asynchronous motor starting, generally adopt the method of reduce the voltage of the stator winding step-down starting, can reduce the starting current, but also inevitably reduces the starting torque. Various step-down starting way is as follows: step-down starting starting star Angle conversion starting method since the coupling compensation Yanbian triangle starting voltage starting voltage drop coefficient is 0.577 times the rated voltage 0.78 * * rated voltage depends on the stator winding tap voltage rated voltage starting current voltage drop coefficient multiplied by the starting current (straight) a third * starting current (straight) depends on the stator winding tap voltage 0.6 * (straight) starting torque starting current multiplied by the square of the voltage drop coefficient * starting torque (straight) a third * starting torque (straight) depends on the stator winding tap voltage 0.6 * starting current (straight) starting method of characteristics Motor stator winding through autotransformer step-down starting, starting after removal of the autotransformer motor stator winding into a star, when starting or changed into triangles When the starter motor stator winding connect yanbian triangle after starting or changed into advantages and disadvantages of 1 small starting current
Q:The three-phase ac motor can be divided into which classes
Three phase asynchronous motors with different power supply: Can be divided into dc motor and ac motor, dc motor: dc motor, permanent magnet dc linear dc motor, brushless dc motor, ac motor can be divided into asynchronous motor, ac servo motor, ac torque motor, synchronous motor, ac motor. Second, classify the starting and running mode Motor can be divided by starting and running in a different way, capacitor start type single-phase asynchronous motor, capacitor operation type single-phase asynchronous WEG, capacitor start motor operated single-phase asynchronous motor and split-phase single-phase asynchronous motor.
Q:Single phase capacitor ac motor speed regulation why does not have corresponding frequency converter
It is suitable for low load, such as fan, blower, exhaust fan, etc. The voltage is reduced, the strength of the winding is reduced, the rate of change increases, and the speed decreases. If the load is larger, the voltage is reduced by the lower voltage, and the power of the motor is reduced, and the coil is likely to be overcharged and the coil is hot and burnt. A fan without a speed governor is more than one way of controlling silicon.
Q:What effect is the capacitor on the ac motor?
The capacitance of the three-phase motor is reactive capacitance, and the capacitance of the two-phase machine is the start-up capacity and the operating capacity.

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