Tubular Motor for rolling windows doors CE certificate 45mm

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Product Description:

Tubular motor for roller shutter, electric awning, motorized blind, Roma shade; 

 Used for rolling windows, doors, blinds, screens and rolling shutters.


·         Key Specifications: 
Technique leads, design novel, noiseless, 
Mechanical limit switch, can be used in power off 
Facile install system 
Can deal with some accidents and with overheat protection for motor 

1) Voltage: 230V/50Hz 
2) Input power: 117W/ 215W 
3) Current: 0.49A /0.92A 
4) Speed: 12/16/25rpm 
5) Torque: 10/15/20/30/40/50N. M 
6) Working duration: ≥ 4min 
7) Insulation classification: B 
8) Protection classification: IP44 
9) Certification: CE, TUV, CCC, ISO9001-2008 ROHS, 

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Q:What is the difference between dc motor and ac motor?
Series type of ac motor and dc motor structure, such as hair dryer, crusher, hand electric drill, etc. Used in the motor, just can't like dc motor with permanent magnets to generate the magnetic field. There is a commutator, carbon brush, there is electric spark in the work, the noise is bigger. General induction ac motor commutator and carbon brush, the input current of stator, rotor coil produces eddy current magnetic field, no spark, noise is small in work.
Q:The calculation method of the weight of copper wire used for ac motor
It is often surrounded by a center, which has a high insulation layer. The cable has the characteristics of internal electricity and outer insulation.
Q:Who knows the main difference between dc motor and ac motor
The biggest difference is that the power supply is different: one is the dc power source and one is the ac power supply. Ac motors, with 220 volts or 380 volts alternating current. Household appliances such as fans and washing machines are used for ac motors. Dc motor, which USES a 24 volt or 12 volt dc power supply, which requires a stabilized power supply or a battery for alternating current. Commonly used in computer cooling fan, etc.
Q:The moment of inertia per motor is equal to the inertia ratio?
Yes, in the transmission shaft system, the rotational inertia of the axis of rotation is the output axis of inertia (Je) to the calculation axis reduction of the ratio squared (I squared). In other words, from the low speed axis to the high-speed axis, the high-speed axis rotational inertia (Jo) = low velocity axis rotational inertia (J1) is the reduction of the speed of the inertia (I squared). From the high speed axis to the low-speed axis, the inertia of the low speed axis (J1) = high speed axis rotational inertia (Jo) x reduction (I squared). In the calculation, the deceleration ratio is greater than or equal to 1, which is the low speed shaft tooth number/high gear number. The high-speed axis is usually the motor shaft.
Q:What are the requirements for frequency conversion of ac asynchronous motors?
Ordinary asynchronous motors can be used for short periods of time. In the long run, the frequency conversion motor is different from the ordinary motor. The reason is that the operating conditions have changed: 1, the frequency conversion asynchronous motor USES the frequency converter power, the waveform of the transducer output is PWM waveform, contains a large number of harmonics, the harmonics will add the added loss. The frequency of the base wave of the output waveform of the converter is varied, unlike the traditional fixed 50Hz. The operating conditions changed, and the corresponding design was different: The high peak of the output voltage of the transducer, the threat to the insulation of the motor and the need to strengthen insulation.
Q:Ac asynchronous generator principle
Asynchronous generator rotor is higher than the synchronous speed, the stator magnetic field will be of induction coil cutting, voltage and current, if the power grid, the grid frequency control are the synchronous speed. If it is not incorporated into the grid, its synchronous speed will be determined by the combination of the generator's speed and load.
Q:What is the power of ac motor
Single-phase ac motor: single-phase ac motor is rated at the rated voltage by the rated voltage by the rated current by the power factor.
Q:About 100W ac motor is better than dc motor
For ac generator, it can realize the energy of the "direct" back to the grid (but must ensure that the four conditions: the same voltage amplitude, phase, phase sequence, same same frequency); But dc generator power inverter is required (convert alternating current to direct current (dc) according to the process of rectification, the process of convert dc to ac inverter), to feedback to the grid. So it also needs to increase the power inverter.
Q:How does the three-phase ac motor achieve constant power or constant torque output
Is generally frequency converter to realize, in the power supply of power frequency 50 hz, motor with frequency converter to belt, the inverter output below 50 hz, the motor is constant torque output, but in the inverter output above 50 hz, the motor is constant power output.
Q:What are the advantages and disadvantages of synchronous motor and asynchronous motor?
The stator winding of the n synchronous motor and asynchronous motor is the same, the main difference is the structure of the rotor. The rotor of synchronous motor has dc excitation winding, so it needs to be coupled with excitation power supply to introduce current through the slide ring. The rotor of the asynchronous motor is a short-circuit winding, which generates an electric current through the electromagnetic induction. In contrast, synchronous motor is more complicated and expensive. Use n synchronous motor is used mostly in large generator Settings. Asynchronous motors are used almost exclusively in motor situations. The synchronous motor can adjust the voltage and current phase of the input side by excitation, the power factor. The power factor of asynchronous motor is adjustable, generally between 0.75 to 0.85, so in some large factories, application of asynchronous motor is large, can be added a synchronous motor for condenser, used to adjust the plant and the power factor of power network interface.

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