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

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1 set
Supply Capability:
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 does ac motor winding be classified?
The 220-volt single-phase machine has no main winding and the starting winding. It is composed of two equal number of turns set of winding, it will be one end of the two windings and leads to a public side, both ends of the rest of the lead after receiving the ends of the capacitor. When the power is delivered to the end of the capacitor and the utility motor spins. To change the switch of the motor, you simply switch the power cord from one end of the capacitor to the other end of the capacitor. So, how do you know that this is a common thread? Method is: will the location of the multimeter to move it to the ohm file, measuring three end resistance, when one end of the multimeter (set it to black pens and) and other basic equal on both ends of the measured value, the black pens and the end is the public side, the rest of the two end is the end of the capacitor.
Q:Which is better for dc speed regulating motor and ac converter?
See how big power, want to achieve what effect, small power, dc speed regulation general cheaper a few, big power estimate is ac electric machine. The structure of dc speed regulating system is complicated, the maintenance cost is high, the dc motor structure is more complicated than the ac, and the price is high. Inverter easy to use, the price is not expensive, cheaper ac motor, frequency converter and PLC is widely used in many fields. But not necessarily must use ac speed regulating motor. On the upfront costs, general inverter about price range in 700-3000. Dc speed governor is a kind of motor speed control device, including dc motor speed, pulse width, dc speed regulator, SCR dc speed regulator, etc., generally for modular dc motor speed regulator, integrating the power, control, drive circuit, using three-dimensional structure layout, control circuit adopts micro power components. Frequency conversion motor adopts "special inverter induction motor + frequency converter" way of ac speed regulation, make the mechanical automation degree and greatly improved the efficiency of production equipment miniaturization, increase comfort, is to replace the traditional mechanical control and dc speed control scheme
Q:What is the power of the motor
P is not equal to U times I, it should be the power of the motor, P = 1.732 times cosine phi. (U is line voltage, I for line current); Output power P = T times W;
Q:Dc motor power 13KW for ac motor
Ac motor instead of dc motor, in practice is ok, but note that dc motor at low speed torque is directly proportional to the voltage and current, and ac motor in this area is insufficient, so use ac instead of dc motor should use the relevant calculation formula to power, and to consider the 2 kinds of control mode is different, so the speed and power are to consider, general communication is 1.5 times of communication, speed matching with dc
Q:How to judge a three-phase ac motor
How to measure the good and bad of the motor using the multimeter ohm. One, check to see if the road is open, U1 pairs U2 V1 to V2 W1 pair, check insulation U1 to V1, W1 U1, V1 W1 pair.
Q:Why does a single phase ac motor have to be a capacitor to start running?
Single phase ac motor and capacitor are used to make use of the current advanced characteristic of the capacitor to build the rotating magnetic field and make the motor run.
Q:Why should ac motors be used in parallel with capacitors
You say "ac motor" all have no rotational moment!!! With capacitor in parallel to the two sent 90 degrees (jet lag) rotational torque coils, potential difference (90 degrees) to stagger time (small single-phase motor) it mainly provide starting torque
Q:What subjects should be included in the purchase of ac contacts and motors?
These two should belong to the fittings, not be used alone, should be repaired equipment to use, so direct in the period of cost - repair cost is ok. Hope to help you!
Q:What kind of motor can be added
Governor has been in the industry dc motor speed regulation, conveyor belt speed, lamplight illume mediation, computer power supply cooling, dc fan, etc., used widely.
Q:How to implement the start-stop of three-phase ac motor with the contactor?
The contactor is divided into AC contactor (voltage AC) and DC contactor (DC), which is applied to power, distribution and electricity. A contactor is a term that refers to a magnetic field that is used by an industrial electrical current to generate a magnetic field, which makes the contact close to the control load.

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