11KW YZTDseries for tower crane changing- poles multi -speed three-phase motor for tower crane
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 1000 set/month
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Packaging & Delivery
Packaging Details: Carton/ Wooden box or according to customer's requirement
Delivery Detail: Within 20 days after30% deposit
Prompt Quotation, Competitive Price
100%tested, Guaranteed Quality, 100% copper wire, Cold-rolled silicon steel sheet
Good performance.
Energy saving ,Long working life .
motor with ISO9002-2000, CCC
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
Features:
High efficiency and low energy consumption.
Low noise and vibrate.
Simple operation.
Easy maintenance.
- Q: Three-phase asynchronous ac motor electric speed formula?
- The "extreme number" of a three-phase asynchronous motor is the number of magnetic poles specified in the subfield. The connection mode of stator winding is different, and different poles of stator magnetic field can be formed. The number of poles chosen for the motor is determined by the speed required by the load. The electric current of the motor is only related to the voltage and power of the motor. The three-phase ac motor generates N, S, magnetic poles for each coil, and the number of magnetic poles per machine is the number of poles. Because the poles come in pairs, the motors have two, four, six, eight... Extremely.
- Q: Single phase synchronous alternator working principle
- The working principle of the dc generator is the armature coil alternating during induction electromotive force, the commutator with brush commutation function, make it from the brush end into the principle of dc electromotive force.
- Q: How does the three-phase ac motor achieve constant power or constant torque output
- Three phase asynchronous motors running on motor. Three-phase asynchronous motor rotor speed is lower than the speed of the rotating magnetic field, rotor winding due to there is relative motion between magnetic field and induced electromotive force and the current, electromagnetic torque and interact with the magnetic field, the realization of energy conversion. Compared with the single-phase asynchronous motor, the three-phase asynchronous motor performs well and saves all kinds of materials. According to the structure of rotor, three-phase asynchronous motors can be divided into caged and winding type. The asynchronous motor structure of the cage rotor is simple, reliable, lightweight and inexpensive, and is widely used. The main drawback is the difficulty of regulating speed. The rotor and stator of a winding type three-phase asynchronous motor also set up a three-phase winding, which is connected by a slide ring, a brush and an external rheostat. Adjusting rheostat resistance can improve the starting performance of the motor and adjust the speed of the motor.
- Q: What is the difference between alternating current motors and dc motors?
- The same is true of their principle, which is the use of electromagnetic induction. Different is confidential by dc commutator to change the direction of current. To get a torque, principle, I would say, junior high school. Ac motor is to pass through it into the alternating current to produce a rotating magnetic field in the motor, and then is the law of electromagnetic induction. I wrote it myself, hoping to help the owner.
- Q: How do ac motor maintenance and maintenance?
- Maintenance and maintenance of electric motors: A, 1, in the daily inspection, mainly check the lubrication system, appearance, temperature, noise, vibration and abnormal phenomenon, also check the ventilation cooling system, the condition of sliding friction and fastening situation of parts, do check and record. 2, monthly or regular inspection of the main check grounding device switch, wiring, whether there is loose phenomenon, such as presence of damaged parts, if you have to plan and repair measures are put forward, check the dust accumulation, to timely cleaning, check for damage and aging lead wire and the wiring problem. Test the insulation resistance of the motor winding and record it. In addition to the above mentioned items, the annual inspection of the disintegrating motor will be checked, cleaned or cleaned, and checked for insulation
- Q: What are the advantages of ac generators compared to dc motors? Why is it that today's big generators are talking about generating electricity and getting rid of dc power?
- The biggest advantage of ac generators is that there is no commutator. And alternator can laid poles on the rotor, it's more manufacturing created the condition for the large capacity generator (excitation power is a few percent of generator power only); Due to the existence of commutator, the development of dc generator is limited. The widely application of the alternator has also benefited from the invention of the ac squirrel-cage motor, ac squirrel-cage asynchronous motor has simple structure, strong, easy maintenance, the advantages of dc motor pressure up anymore; In addition, the alternating current can be changed at random and can be transported over long distances. Due to alternating current (ac) is widely used, so the alternator also got great development, in addition, the development of power electronic technology, the direct current (dc) don't need a dc generator can get, so less dc generator.
- Q: What is the difference between a brushless ac motor and a brushless dc motor?
- , dc motor has direct current, ac motor is alternating current; 2, dc motors need to be replaced by brush and brushless. The brushless dc motor is replaced by a commutator, and the brushless motor is replaced by the logic of the circuit. Three, ac motor is divided into three phase ac motor (split: synchronous and asynchronous), single phase ac motor. 4, the difference between ac induction motor and synchronous motor rotor asynchronous motor is a magnetic material (usually for copper, aluminum), the rotor is a permanent magnet synchronous motor (or the equivalent of the permanent magnet).
- Q: The difference between a converter motor and a regular ac motor
- Electromagnetic design For common asynchronous motors, the main consideration in redesigning is overload capacity, start-up performance, efficiency, and power factor. And frequency conversion motor, because of the critical slip inverse ratio at power frequency, you can directly start when critical slip is close to 1, therefore, overload capacity and startup performance is not need to think too much, and to solve the key problem is how to improve the ability to adapt the motor of the non sine wave power. Here's how it works: 1) minimize stator and rotor resistance Reducing the stator resistance can reduce the copper consumption of the base wave to compensate for the higher copper consumption. In order to suppress the high harmonics in the current, the inductance of the motor is needed. However, the main effect of the rotor slot leakage resistance is large, and the high frequency harmonic copper consumption increases. Therefore, the size of the leakage resistance of the motor should be adjusted to the rationality of the impedance matching within the entire speed limit. 3) the main magnetic circuit of frequency conversion motor generally designed to unsaturated state, one is to consider will deepen higher harmonic magnetic circuit saturation, 2 it is to consider at low frequency, in order to improve the output torque and appropriate to increase the output voltage of inverter.
- Q: What will be the result of the power supply to ac motor after the rectifier (not filtering)?
- The ac motor will not be able to transfer the pulse direct current, the light is hot.
- Q: How to control ac motor with single-chip microcontroller
- First of all, you have to make sure that you have a two-way flow of alternating current motors. For example, using a single piece of the triode drive relay to control the motor's positive and backward rotation, as in the case of the main parasymmetrical single tap. The problem with this control circuit is that you can't control the motor stop! Moreover, the steering is controlled when the motor is rotated The motor may cause damage due to inertia. In the figure, the added level 1 stop control (1) (2), and steering control besides can control the motor stopped, also can be in to control motor rotation to insert the stop control, avoid damage to the motor inertia torque motor. Of course, if you are using two limit switches to control the motor's one-way work, you can use the image above.
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11KW YZTDseries for tower crane changing- poles multi -speed three-phase motor for tower crane
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 1000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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