Tubular motor for roller shutter;nice tubular motor;roller shutter door motor

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The ideal tubular motor for automatic window and garage door, roller shutter and awning etc, with TUV, CE, ISO9001-2008 certificates, Low noise, efficient, energie saving, high Efficiency, long time life 

·         Key Specifications tubular motor
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 

Features tubular 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:Calculation method of motor torque
The relation between power, speed and torque is not related to motor form. All the rotating machines are the same. The formula is P = T * n / 9550, P is power, unit KW, T is torque, unit N.m, n is RPM, unit RPM. Different types of motors have different output characteristics, and there is no way to do the exact equivalent, mainly for use.
Q:The motor in the hair dryer is ac motor, or dc motor
Is a dc permanent magnet motor, alternating current (ac) in the rectifier diode, part of the heating wire and the motor is connected in series, two head pressure drop of heat wire is very big, the motor voltage is low.
Q:380v's ac motor operates under 330v voltage
It should be because your motor is not heavy, but it should not be used. It is harmful to the motor.
Q:Please communicate the motor. It is possible to speed the speed with a governor
Teacher, could you tell me can use electric fan transmission to control, 220 v370w unidirectional and bidirectional motor, is connected to electric fan way can use, thank you very much
Q:The same power ac motor is more expensive than the dc
Ac motor only has stator winding is copper wire! The rotor is cast aluminum bars! The cost is much lower! Simple process! Dc motor stator rotor is copper wire winding, and commutator. (commutator), it is copper. The process is complicated! Therefore same power dc motor is more expensive than ac motor!
Q:What is the effect of the ac motor on the connection of direct current
If you want to run soybean milk machine with a 48V battery, you have to use the inverter to power the UPS power supply
Q:Does ac motor control circuit have to be communicated?
In addition, the alternating current is a sinusoidal current, not a sudden change in the plot. It's a little bit of a gradient. So the magnetic field is also gradient. Instead of magnet, and ac motor in an iron core, the iron core in the gradient magnetic field induction current, magnetic field and the current must be pushing it normal rotation, of course also change. In other words, what you're saying is that the frequency invariant means that the external gradient is constant, but the induced magnetic field is related to the speed of rotation. And those motors that can shift gears are changed by changing the number of electrodes. For example: the current one period of the external gradient field turns a week, and now the two cycles of the tween magnetic field turn around for a week, not half the time!
Q:How to distinguish dc motor from ac motor?
The difference between dc motor and ac motor is, of course, the type of power supply. One is dc and one is communication. The stator of a dc motor is a fixed magnetic field, and the direct current is rotating within the stator by the electric brush of the rotor forming a changing magnetic field around it. In industrial enterprises, dc motors are generally used for standby machinery or security equipment that can be reliably run because of the relative reliability of dc power sources. As the input voltage changes due to dc motor speed can also change, so need to often speed used dc motor is also many, such as trolley, electric locomotive, and so on. Ac motor is the rotational force generated by the rotating field of the stator that inducts the electric potential on the rotor. Its speed is generally fixed. But because of its simple structure and convenient power supply, it is widely used in various enterprises and families. Small to household washing machine, vacuum cleaner, big to huge pump, machine tool and so on, all use ac electric machine. Since communication is easier to obtain and easier to deliver, most of the electric machinery we use today is driven by ac motors.
Q:How does the current transformer in ac motor work?
The differential protection of ac motor is in the three-phase power supply (cabinet) of the motor, which is equipped with three current transformer: A1, B1, C1. At the end of the three-phase winding of the motor, there are three current transformers: A2, B2 and C2, before being linked to "neutral". The six current transformers are the same, and the secondary winding receives the differential protection relay. When the motor is working, A1, A2 is equal to zero, the difference is zero, and the differential protection relay has no output. (B1, B2, C1, C2) The proposal: still seek a book to see, as the electrical design personnel, should have more in-depth understanding, the Internet is difficult to get.
Q:Why does ac motor speed control system replace dc motor speed control system?
Especially microprocessor used in PWM technology and the digitized, pattern is constantly renovated, from the initial voltage waveform sine pursuit, the sinusoidal current waveform, and then to sinusoidal magnetic flux; The development of PWM control technology has undergone a continuous innovation and continuous improvement from the optimum efficiency, the lowest torque ripple, and the elimination of noise. So far, new proposals have been made to further prove that the technology is in the ascendant.

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