Siemens Original Reducer
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- Q: What happens to DC motors when they are connected to AC current?
- None of these people answered your question fully, so I will. A DC motor that uses permanent magnets will vibrate at the rate of the AC line frequency, which for the USA is 60 Hertz. However, if the DC motor is a shunt wound motor or series wound DC motor aka field wound motors, then it will rotate. These motors use copper wingdings in the field instead of permanent magnets to produce a magnetic field when current passes through the copper conductors. In fact the universal motors you find in power tools, vacuum cleaners, and blenders use series-wound DC motors that are using AC power to run. If want to know how it is possible for a field wound DC motor to run on AC then let me know and I will tell you.
- Q: need to know how many 12 volt batteries it will take to run the motor
- Install an inverter to convert your 12 volts DC to Ac and connect a 12v/115 vots AC transformer.Connect an additional battery in paralllel if the motor rating requires its addition
- Q: Hello all:I was wondering if there was a way to take an electric motor using alternating current ( AC ) and hook it up to a sort of speed controller. Some one told me speed controllers burn out AC motors; is that true?Also, is there a way to hook up a speed controller to an electric motor using direct current ( DC )?Examples:I want to put a speed controller to an windshield wiper motor.I want to put a speed controller on a ceiling fan (not a dimmer switch).Any help would be greatly appreciated. Thank you all in advance.Have a beautiful day.
- Both of the motors you mentioned can be speed-controlled. The ceiling fan motor is a capacitor-run motor. This type of AC motor, as well as shaded pole motors, can be controlled by reducing the voltage to the motor with a stepped or variable transformer (variac) or by adding series capacitance (3 or 4 speed wall mount fan controls) or a phase-control (dimmer) circuit. These devices actually reduce the TORQUE of the motor, which will cause the attached fan to drag the speed down. If you run the motor with no load, the speed will not vary properly. The 'brush-type' DC motor speed can be controlled by varying the voltage to it also. This could be done with a simple variable resistor (rheostat) which is terribly inefficient, or by means of Pulse Width Modulation (PWM). PWM switches the full power supply voltage to the motor on and off rapidly, and as you increase the On time in relation to the Off time, the average power applied to the motor increases, along with the motor speed. Most battery powered variable-speed tools use this method. It is a bit complicated, but quite efficient.
- Q: what are the two types of motors that are for a single phase multi-speed applications?
- 1--- A shaded-pole motor is a type of AC single-phase induction motor and needs a triac speed control to give multi speeds 2----A synchronous electric motor is an AC motor distinguished by a rotor spinning with coils passing magnets at the same rate as the alternating current and resulting magnetic field which drives it.
- Q: How to ac motor work?
- Hi it works by using the alternating currents causes flux changes which cause rotation of the field and stator currents. hence rotation the stator can be a laminated solid armature as the field rotates around it. unlike a dc motor where the commutator does the switch with the brushes.
- Q: Braking principle of 220V alternating current motor
- LZ is trying to understand the principle of an ordinary two-phase AC motor? The function of an electric motor is to convert electrical energy into mechanical energy. Motor is divided into alternating current motor and direct current motor two major categories.
- Q: How does one calculate the stator (or rotor) phase winding resistance (NOT impedance) of an AC 3 phase motor?
- Firstly, we have to establish if this is single speed, or two speed? You have said it is a squirrel cage motor, therefore can assume to be an induction motor. Because the starter has 3 contactors, you cannot assume it is a Star/Delta started motor, even if one contactor has a star connection. A 3 phase induction motor, with, or without a star/delta starter should never have any resistance between windings if all external connections are disconnected, which you obviously appreciate. There does exist a type of motor called a tap wound, or Dahlander motor. This is a 2 speed motor with 1 x 3 phase winding. The windings are connected internally, using 3 contactors to give a pole change in ratio 2:1 using delta and star/star (Double star) configurations. Afraid not enough information is supplied, however if it is a single speed 3 phase induction motor, you have a problem with the motor, sorry. Try the site below for winding connections, I have eventually found. Good luck Chuck.
- Q: The difference between three-phase AC synchronous motor and three-phase AC asynchronous motor
- The stator windings of synchronous machines and induction motors are the same. The main difference is the structure of the rotorThere is a DC exciting winding on the rotor of synchronous motor, so the external excitation power supply is needed, and the current is introduced through the slip ring;The rotor of the induction motor is short circuited winding, which generates current by electromagnetic inductionAsynchronous motor has the advantages of simple, low cost, easy to install, use and maintenance. It is widely used. The disadvantages of low efficiency, low power factor of power grid and high efficiency disadvantage. Synchronous motor is a capacitive load, can improve the power factor. With large mining equipment.
- Q: I am making a cotton candy machine and I need to be able to slow down the motor a little bit. Its 115 volts and 3000 rpms. I was told that I might need a special kind but Im almost positive I could use a regular house light dimmer. Which kind should I use?
- Dimmer For Motor Speed Control
- Q: What is my problem? Do I have a load that is too large on the motor.Here are the specs:AC 3-PhaseContinuous DutyConstant ToquePower Output: 5 HPBase_RPM: 1750Service Factor: 1.15Power Factor: .75Namplate Current: 14.2 AmpsNameplate Voltage: 230 VWhat I'm doing is increasing the speed of the motor with a VFD. The motor will turn the rotor up to 300 RPM (Well below its base RPM) before it exceeds its nameplate current, which causes the motor to be tripped. Is the motor drawing current above it's rated value to produce more torque to spin the flywheel? The motor can produce 15 ft*lb of constant torque at any speed up to its base rpm, and it is drawing 15.5 Amps at 50 Volts before it trips.
- The motor full load current rating is only 14.2 amperes and is drawing 15.5 amperes before it trips. It means, the thermal overload relay is starting to heat up at this stage.Either, you reduce the load or the speed so that the rated current won't be exceeded.
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Siemens Original Reducer
- Ref Price:
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- Loading Port:
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- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
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