• YVF(E)Three一phase Asychronous Motor for Braking System 1
YVF(E)Three一phase Asychronous Motor for Braking

YVF(E)Three一phase Asychronous Motor for Braking

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Overview


YVF(E) three-phase asychronous motor for brakingv is provided with an electromagnetic brake set between the rear cover of the primary motor and axial-flow fan
This kind of motor is widely applied to the occasions requiring for speed regulation, rapid stop and accurate positioning.

Features


Variable-frequency regulation in a broad range;
High efficiency, small starting current and big starting torque;
Capable of rapid braking and accurate positioning. It is suitable for frequent starting and braking

Q:What kinds of AC motors are divided into?
The AC motor can be divided into squirrel cage AC asynchronous motor and winding AC asynchronous motor according to the rotor difference
Q:Here is the question: Some motors must be able to switch directions, sometimes spinning clockwise and other times counter-clockwise. For example, the motor in a VCR must fast forward and rewind videotape. In these situations, explain which type of motor is the best choice. Could someone please help me understand? Everyone is saying it's DC, but I don't understand why.
A motor of either type has 2 wires. If an a.c. type motor, it matters not which way round you connect the a.c. supply to the motor: it will always spin the same way. A d.c. motor will reverse its direction of rotation if the wires are switched over.
Q:And what fuses would I need?
It shows that info on the motor nameplate...I think you need to add a factor to the FLA for the fuse size...
Q:I replaced a capactor on my blower motor with the same value as recommended on the nameplate. 5uF, 370VAC. It opened up after about a day, then I replaced it with another one and it did the same thing. I checked the value of the cap before installing and it was correct. The motor is rated at 9A, and I am getting a current draw of less than that.
Sounds like a short to me. Check your wiring to see if there is a nick anywhere in the insulation. Also your windings in the motor itself could be shorting. That is usually caused by the breakdown of insulation on the windings. How old id the Blower motor? Hope this helps :)
Q:how can we define dynamic eccentricity index in ac motor?
In AC electric machines, it is much more important to detect possible dynamic eccentricity of the air gap. It can be detected by the index of slot frequency vibration component modulation by the rotation frequency harmonics.
Q:I have an auger that is triggered every 5 seconds for 4 seconds. It spins at 1 rpm. brushless 120 VAC at .5 amp. It can handle about 100 inch pounds of torque. I don't have the ability to change the programming on the motherboard. That would be too easy. lolI want to decrease the rpm in half when I want to without burning up the coils of the motor in the mean time. Could I put a dimmer switch in series with the motor until it puts out 60VAC? I just figured it might get stuck trying to push the load and burn up. It is an expensive little motor to experiment on.Any ideas is appreciated
Could I put a dimmer switch in series with the motor until it puts out 60VAC? it depends on the exact type of motor. universal or ac/dc motors can be speed controlled, but synchronous motors spin at a rate determined by the supply FREQUENCY so changing the voltage would do no good. Could I put a dimmer switch in series with the motor? no, dimmer switches produce spikes which would do your motor lots of no good, and produce catastrophic interference. And since its an inductive load you would also blow the dimmer.
Q:Hello all there is a lot about this subject out there but I could not find anything helpful so here it goes I was given this tool to see if I could fix it and keep it , is a Milwaukee band saw 6236 deep cut and I have limited knowledge about ac motors so I took it apart and the windings check out good as well as the armature I have to put it in a growler to finish test so I wanted to eliminate the on and off switch for a moment and test it direct this motor is a single phase with only 2 winding and has 2 speed I think , there are 4 cables coming from the windings and 2 for the carbons and it does not have a capacitor can anyone tell me how to connect the wires so I can test the motor thank you in advance
Put everything back the way it was, and use the ON/OFF switch to test it.
Q:Hello, I'm planning a project and I am going to need to control the rotational speed of an electric motor very accurately. Is there an easy way to do this? I was thinking about some sort of comparative op-amp but don't really understand.Also, I need the motor to be able to change speed very quickly, ie accelerate and decelerate to the required angular velocity. Is this quality the torque? Thanks
If it is an AC motor I would purchase a variable frequency drive from Grainger.
Q:It's a 1kW single phase AC pump motor with a 100v supply. This is for a theory question btw. :)
usa a speed controller. 1 kilowatt would cause a lot of heat in a potentiometer.
Q:i want a fairy simple one that doesn't take too long time or not too complecated, thanks.
If you have a strobe light you can confirm that it is turning at just under 60 cycles/s because the AC is 60 cycles/s You can take off the fan blade and confirm that it is now turning even closer to 60 Hz because of a lack of load. You can increase the load by blowing air at the fan with another fan and watch it turn slower. If you can destroy the fan (there are many being thrown away each day) you can cut off the copper shading coils that help it start up. You can measure the current in all the above situations and observe that the closer to 60Hz it turns the less current there is.

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