ac motor

ac motor

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  1. H

    How to choose AC motor？

    I need an AC motor with output power of 25w and voltage of 50v. Do you have any suggestions
  2. C

    Help understanding AC motor diagram please

    hi can I anyone help me understand wiring one of these l, also what capacitor needed. I want to use with a speed controller. To be used on DIY reeling machine Any other tips thanks in advance.
  3. S

    Star Delta Starter, Blowing Contactor

    Hi there, I got a call to a job, table saw (wood) tripping C/B straight away. 4kW motor on Star Delta Starter. So I get to the job, after some investigation I find that the main contactor is welded shut and there is a phase to phase short circuit, I find that the motor tails to the windings...
  4. M

    Star delta motor overload

    Hi I got called out to a faulty star delta starter on an old Stenner band saw Monday (was getting stuck in star and blow fuses) - So I ordered a new one to suit the 22kw 400v motor having calculated the overload to be 22.04A going by the plated current saying 38A. 38*0.58 Fitted it all today but...
  5. N

    3 phase AC motor to a 120V speed controller

    I have a 3 phase AC motor that I have hooked up in low voltage it is supposed to connect to a 120v input 3phase 230v output speed controller I just don’t know how to hook it up. I think I have it right and will post some pictures down below but I would like to double check before I plug it in.
  6. I

    Having trouble with a 240v AC motor

    Im in the process of fabricating a motorized flatbar roller, and I have a 240V 5hp AC motor with 4 leads. Im controlling it using a dual foot pedal box, that controls 2 contactors, which these 2 contactors are there to reverse the motor by having one contactor T1+T5 & T4+T8, while the other...
  7. C

    Single Phase AC MOTOR stuck

    I am trying to fix a single phase ac motor but need some help. When powered on and put off load, motor humms but doesnt rotate, its sort of magnetically locked because even trying to rotate by hand it very hard to turn (motor was removed from housing and therefore I have stator and rotor...
  8. R

    Measuring current draw by AC motor.

    Hello guys. This isn't a job, just so that you know. Just exploring. I have a couple of AC motors and I am playing with them. One of the things I want to do is measure the current draw. So I attach them to a power source and switch it on and off they go doing their thing. No problem there...
  9. C

    AC motor and power connection

    I am attempting a project that requires a heavy duty electrical motor. I was thinking of using an AC motor from a fan on the condenser of a walk in freezer. I cannot remember how the wiring was done and it was a three phase setup on the compressor but I'm sure it was a single phase motor...
  10. D

    SVX Moeller AC Motor Drives

    Hi, I'm looking for some information about the performance and reliability of SVX Moeller drives. Im planning to install them on an industrial plant but I haven't any feedback about those drives. I will appreciate any comment about any experience with this drive model. Thanks
  11. T

    baldor 1 hp ac motor wiring from 110 to 220

    Please help, I'm using a Baldor 1hp 110ac motor in Italy (220) with a transformer, It's causing many problems with heating, I was told that changing the wiring the motor could run from 110 to 220 except i have no diagram and the 9 wires coming out of the housing are all the same color with...
  12. J

    reverse a single phase AC motor

    how would I work out the size of capacitor I need to reverse a single phase motor. Not sure of the size etc as not been out to see it yet all I know is the customer has a fan they want to reverse its in a machine so don't think a fan controller would suit.
  13. P

    Identifying Parts of an AC Motor

    Hi all, 7 weeks into an Electrical Control Systems course and I've taken apart the DC motor that came from the extractor fan which wasn't working. Trying to id parts and familiarise myself with motors in general. Think the copper wiring on both sides is the field winding (are these also...
  14. K

    single phase ac motor runs forwards or backwards

    hi all hope you can help. i have a single phase ac motor which turns freely by hand but wont start under its own power it just hums until it trips out overload. to make things interesting though if you apply power to the motor and then turn it by hand it will pick up to near full speed...
  15. T

    Help me for selecting a AC motor!!!!!!

    Dear all, I'm doing my project in university. My project is to replace a DC drive by a AC drive using inverter. The old DC drive parameters are: - Power 450kW - Speed 50 to 1000r/min (so Tn = 4298Nm) (Tn: nominal torque) and the requirements are 250 % during 60 seconds acceleration and a...

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