Q:my AC motor have 2800 rpm but i need 1500 to 1800 rpm which will be variable value.i can control rpm my self 1500 to 1800 which i need.how can i do this?and is this effect on life of motor?

Reduce speed on the driven equipment by using reduction drive pulleys. The driven pulley should be twice the diameter of the drive pulley.

Q:How can a DC motor be changed into a three-phase AC motor with good performance?

If the direct replacement is used, the mechanical characteristics and the service life of the motor will be directly affected. But as a technical transformation project, there are also successful cases. Priority is given to the output torque to meet the mechanical requirements, and also to match the power.

Q:I am working on a variable frequency drive for an ac motor what parts do i need?

Not enough information! If you have a drive and a motor you have all the parts you need. Hook it up and program the thing.

Q:hi, i am doing my final yea project and i have decided to build a electric can crusher, i have performed some laboratory test and it take around 3000 N force to crush some cans. now i need to choose my E.motor and not sure which one to choose, and also not sure what gear ratio i need for my sprokets.thanks

It has a smaller DC motor (maybe 200 watts) but it is run thru a 1:160 gearbox or so. With a capability of pulling about 800 lbs vertically and 3000 lbs in rolling wheel mode it has the 3000N of force you need. You could mount the winch to a small frame and simply hook the cable to a box with a sliding piston that crushes the can.

Q:i was told by ford service that this was normal after 9 years when i purchased the car i was not informed of this what can i do about it

50,000 seems like it's too soon for this stuff, but it's impossible to predict.

Q:I need to know if it is possible to control the speed of a 220 volt ac motor (from a washing machine so I assume it is 3 phase) but the system has to be compatible with the arduino. So if it is please let me know how. Thanks

Arduino 3 Phase Motor Control

Q:Okay well first off our ac was running awesome and then one day the unit stopped spinning outside so we called a professional he came out and said that the capacitator(not sure how to spell it) burnt up which was not uncommon in this heat then he said we needed to change our filters he hosed it all down recharged the freon, a week later it compeltely freezes up, the outside unit was spinning but nothing was coming out of the vents , so we let it thaw out call him he comes out says our blower motor was getting stuck so he readjusted it said it was working already cooling our house down! Awesome except it froze up again! So we call him again and he tells us that our blower motor in our furnace needed replaced, so we replaced that ... We fall asleep to a hot house hoping it would get cooler threw the night w our running ac again only to wake up to it being frozen again ..... Please help ...

You AC guy, like most others I've run across, has absolutely no idea what's wrong with your system. They are taught in AC school that if this happens, replace that. If that happens, replace this. They are not taught HOW TO TROUBLESHOOT! I've had so called AC techs try to tell me that the motor will cause the capacitor to fail or the capacitor will cause the motor to fail. I've been in electronics for 43 years. It will not. A failed capacitor will prevent the motor from starting or running. Sure, he replaced the capacitor because the motor stopped running - it's a run capacitor needed for the motor. That was the easy part. Cleaning the coils by hosing them down is a maintenance action, not a repair action, unless it was extremely clogged with dirt. I doubt the blower motor was getting stuck and needed adjusting. There is no adjustments for AC motors. If the motor was bad, he should have caught that on the 1st visit. You may have bought a motor you didn't need. He's cleaned the coils and recharged the system (which I doubt was he problem either). I'm not an AC tech, but I believe you have a restriction in the refrigerant line going to the evaporator. That restriction is acting like the expansion valve causing the evaporator to ice up. A plugged or severely restricted expansion valve itself may be the problem. That's what the problem was with my unit. The restriction could also be a kinked refrigerant line going to the evaporator - that was the problem with my daughter's unit. IT'S NOT YOUR COMPRESSOR. The fact that you can create ice tells me the compressor is working. But if the problem isn't fixed soon, you could lose the compressor due to high head pressures caused by the icing problem.

Q:equtions of rpm of 3 phase ac motor?

The rpm of AC motor does not depend on the phase. It depends on the number of pole and frequency of the line. frequency * 60 rpm = --------------------- 2 poles = 30 freq/poles.

Q:Approximated dimensions are 7quot; dia, 14quot; length.

A okorder /

Q:I have an air compressor AC motor and when I plug it in, it acts like it's not getting any power at all. My thoughts are the the reset switch on it is broken. Could that be it, or could the windings on the motor be bad?I've already replaced the start and run capacitors, so those work. The reset switch just seems to be in bad condition. If so, is the reset switch a special kinda one? And where could I get one?

Some electric motors have a governor device on them to automatically switch from the starter capacitor to all ac. Those switches can go bad and will cause this type of problem. If it is the reset switch, or any other type of switch, good luck in finding one. I have these switch issues at work and can not find them. Had to replace the whole motor. Good Luck