motor

  1. I

    slow down speed of AC FanCoil blower motor

    hello, i have a central AC Fan Coil with a 3 speed motor within my Condominium. I run the fan of low but find it blows too much air and produces too much noise when i run the AC (the motor works perfectly and doesnt make noise internally, just the rotation and airflow it produces for my samll...
  2. Mr305worldwide

    How to find right size carbon brush for electric motor?

    Hi all. Im looking to replace the carbon brushes on the ABS electric motor in my car that no longer works correctly. Thing is, I don't know how to find the right size and I don't want to remove the motor from the car unless I have the part on hand. I'm looking on Amazon but it seems that there...
  3. Poolworx

    Pool pump motor humming

    Hi all Back in July last year I installed a new pool pump/motor. The problem is it's now making a humming noise and trips the breaker. I initially thought it was the capacitor, but opened up the back to find there is no capacitor. Didi a little research and thought maybe it was a shaded pole...
  4. M

    Is anything special about motor start capacitors?

    My dishwasher was failing, and I quickly found the problem was a failing capacitor on the circulation pump. Marked as 2.5uF 400V. No problem, except not easily found locally. So I rummage around and find an old fluorescent lamp with a power-factor correction capacitor of the right value. Well...
  5. mxj262

    Star Delta Starter 400KW Crane Motor

    Hello Dear friends, I am going to check a start delta starter for a motor(400KW) which is used for crane and lately it has been causing some issues (Voltage Drop) not sure if the voltage drop is always there once this is started or it goes back to normal this information was not provided. Will...
  6. R

    Wiring up a new cooker hood motor

    Hi I am looking for some help. My Rangemaster cooker hood stopped working sometime ago, I’ve stripped the hood down and degreased the hood. Ive diagnosed the problem to be a faulty motor. I’ve bought a replacement motor, like for like, although the new motor has the same coloured wires but is...
  7. W

    Motor Brake Wiring Issue

    I have an an electric brake on a three phase motor with the attached wiring schematic which is part of a wine press. At first I thought this was the Wye/Delta wiring layout but I am starting to think this is actualy a low/high voltage schematic but they are using the wye/delta symbols. There...
  8. C

    I have a 1 HP Dayton motor model 5k673. It is being replaced with 31TR91. Need help with wiring.

    I have a 1 HP Dayton motor model 5k673. It is being replaced with 31TR91. Need help with wiring. I was able to confirm line (L1) abd (L2 230v) Connections, but I have 2 wires left and I am not sure where they go. This is a hangar door, and the wiring is attached to a 3 pole switch...
  9. _q12x_

    Stepping Motor Angle Rotation using Logic IC's

    This is more a challenge to myself and why not for some of you as well. I will try to make it myself alone but... it will be easier and faster with some more experienced help from you guys. As the title says, with logic IC's. I could/should make it with an arduino or my favorite PIC12F508...
  10. H

    3 phase motor cable size

    Hi all, I’ve been asked to run a cable for a 3 phase DC motor. Not having much experience with motors would you work out cable sizing the same? In the picture attached are the details I have received. Any help would be great 
  11. S

    Powering single phase motor from 3 phases

    Hi, this might be an easy question, but i need to power a single phase motor situated about 300 meters away from my MCC. Do I just run 3 phases 415VAC cable to the motor in the field and just connect one live phase and the neutral to get the 240VAC? if that's the case then what do I need to do...
  12. Z

    Three phase motor (two speed switch)

    Hi, I am trying to wire a two speed switch to a three phase motor. I have continuity checked the switch in both positions 1 - Low and 2 -High (See attached) Can someone confirm if this is correct and would this change the speed. Secondly i have a cable coming from what is I assume from the delta...
  13. U

    Star delta Pump motor - Doesn't work clockwise but Works anticlockwise

    Hi I'm having a problem with a 20 HP pump motor from a hydraulic press to try molds. When we energized the machine, it starts with star correctly but when it changes to delta, pump motor stops. The breaker doesn't strip and fuses were ok. Video (clockwise rotation)...
  14. F

    Motor starting relay alternative

    I previously posted about having a single phase reversing motor which I thought had a centrifugal switch. After looking into it more, it actually has a motor starting relay, Klixon 2CR4-243 (max pick-up 18.9A and min pick-up 15.6A). These were superseded by the 4CR series however I'm...
  15. F

    Single phase motor reversing with brake and centrifugal switch

    Hi guys, Been given a motor and associated control gear within a panel that has been water damaged. This motor has 3 windings U1/U2, V1/V2 and Z1/Z2, 1 pair of wires for the brake and 1 for cut-out I believe. In the process of wiring a new panel up for it and it know its a long shot but can...
  16. S

    ac single phase motor won't rotate even by hand

    hello!! hope anybody can help me. I have an AC single phase 220v 1.5HP motor that won't rotate when plugged in even when I try to do it by hand, it is kind of magnetically locked, and just hums. when unplugged, it rotates easily. I tested it with a new capacitor that I'm 100% sure is OK (I took...
  17. Poolworx

    Electric ac induction motor 50hz to 60hz?

    Can a single phase single speed 1.5hp induction motor run on both 50 and 60 hz 115 volts
  18. mikeatron

    single phase motor reversing itself

    evening all ive got a single phase AC fan motor running normally however occasionally on start up it starts in reverse. i have 4 no fans, and this is happening to 2 occasionally. now these are in a fresh air chambers and i was starting to think that the airs blowing over the fans causing reverse...
  19. S

    Three phase motor ( Power cable faulty phase )

    Hi gentlemen, I have three phase motor has an issue. This motor is star connection. When I just disconnect the power cable coming from MCC through breaker, and did megger test I found the reading as follows: Phase1 with ground = 0.17 MOhm Phase 2 with ground = 250 Mohm Phase 3 with ground =...
  20. Poolworx

    Single Phase 2 Speed Pool Pump Motor Question

    Hi everyone I came across a single phase 230v 2 speed pool pump motor the other ay and became obsessed with how they work and are internally connected , but cant seem to find a diagram/pic of the anywhere. I decided to do my own from what i found on line My question is have i interpreted the...
    • Poolworx
    • Thread
    • motor phase pool pool pump pump question single single phase speed
    • Replies: 20
    • Forum: UK Electrical Forum
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