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:Why do elevator door motors use dc instead of ac?
Stabilize, turn into direct current electricity through transformer Control, the current door machine is dc brushless motor.
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:How to control ac motor with single-chip microcontroller
First, the output of the single-chip machine is connected to the photocoupler, plus the triode, and the circuit of the relay. Depending on how much voltage the relay corresponds to, the relay has to be connected at one end to the voltage, and one end to the triode. Finally, the ac voltage is suitable for ac motor at one end of the relay, ac motor on the other end, and two relays under control.
Q:Why does dc motor reduce the voltage regulating ac motor?
The magnetic field of the dc motor is generated by the excitation current through the magnetic pole coil, which has a stable magnetic field, so changing the armature voltage can change its speed. Ac motor can also use dropping speed, but the range of speed regulation is very small, mainly its magnetic field is produced by the power supply current, change the voltage, the magnetic field also changed, so a lower voltage, its torque is proportional to the square of the voltage, torque declines very quickly, so the speed range is very small, also reduces the load ability, therefore ac motor generally don't dropping speed.
Q:If you measure the temperature of the motor cover more than the environment temperature above 25 degrees, suggests that the rise of temperature of the motor is beyond the normal range, general motor temperature rise should be below 20 degrees. The general motor coil is made of enameled wire, and the enamelled wire will be flaked out by temperature over 150 degrees, causing the coil to short-circuit. But generally does not exceed 95 ℃.
As a result, the average electrical equipment sets the maximum temperature for the work. According to the ability of different insulation materials to withstand high temperature, the maximum temperature of seven allowed, according to temperature, is: Y, A, E, B, F, H and C. They allowed working temperature: 90, 105, 120, 130, 155, 180 and above 180 ℃. Therefore, class B insulation of the generator by the insulation of the heat temperature is 130 ℃. The user should make sure that the generator should not exceed the temperature to ensure that the generator is working properly. The insulation grade is B class insulation material, mainly by the mica, asbestos, the glass silk is the organic glue adhesive
Q:The difference between a converter motor and a regular ac motor
Ordinary ac motor speed is fixed, the work in the nominal speed. And rotational speed of variable frequency motor is variable, and it varies with the frequency of the power supply voltage, the motor speed can be controlled, can be adjusted.
Q:What is the power of ac motor
Three-phase ac motor, three phase ac motor rated power = square root of 3 x x x rated current x rated voltage power factor efficiency.
Q:How does the current transformer in ac motor work?
The electromagnetic current transformer is widely used in the electric system, and its working principle is similar to the transformer. The wiring of the current transformer, as shown in the left. The characteristics of the current transformer is: (1) a coil in series in the circuit, and as a result, the number of turns in a coil current depends on the load current of the circuit under test. And has nothing to do with the secondary current; (2) current transformer secondary coil of the current meter and relay to the coil impedance is very small, so under normal circumstances, current transformer run in to a short-circuit condition. The ratio of a current transformer to a second rated current is called the rated mutual inductance of a current transformer Because the current I1n is standardized, the secondary coil rated current I2n is uniformly 5 (1 or 0.5), so the mutual inductance ratio of current transformer is also standardized. The kn can also be approximated as the number of turns for the transformer one and the second coils, which is the number of turns in the kn = N1 / N2 type, the number of turns for one or two coils. Current transformer is used to measure large current.
Q:The rated speed of ac motor
It is impossible to achieve 1500 RPM if there is no mechanical loss in itself, such as bearing friction, etc
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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