motor | Page 4

motor

Recent contents View information Top users
  1. R

    motor overload for am2 need help!!!!

    Hi everyone, I’m doing my am2 and can’t seem to find a definite calculation to working out the overload this equation I = P/V/1.73/0.8 has popped up but not sure if it is correct
  2. L

    3Phase Motor breaker - overload schematic

    Hi all, I recently bought a CNC router and dust collector and need to connect it to my 3x380v+N power source. I want the CNC router connected to the under/over voltage protection and the motor also connected to the overload protection. Can someone please check if I connect the machines as in my...
  3. dlt27

    Motor and inverter problems

    Hi all, and thanks in advance for any help that can be given. I had a call out to a factory the other day to connect a new motor the maintenance guy had installed, he said the old one had given up. When I got there I connected it up, and it ran for a bit then stopped. After questioning the guy...
  4. Y

    Motor failure in vvfd application

    we are using two motors 93KW 740Rpm 50hz class H motor for a spray pump application also the pump parameters are 2500m3/hr,suction 400mm,delivery 300mm required motor 96Kw,rpm 740 .At first we used star delta starters for the motors, it went on smooth operation taken load upto 145A. Then we...
  5. J

    gG fuses and motor rated

    if I have a 20amp gG fuses and a 20M25 the continuous rating is the same but would the 20M25 behave more like a 25 amp fuse under earth fault and require a smaller ZS to operate in the same time as the gG fuse?
  6. 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.
  7. 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...
  8. T

    Motor Controls Challenge

    I"m a student learning motor controls and created a challenge for myself but am stuck. Here is the challenge: Challenge 1 A) Using a blower (compressed air) set to a min level so that it would keep the light bulb from turning on. No air or falls below the min level, and fail the light comes...
  9. N

    3 Phase Inverter Motor Vibration But Not Spin

    Dear All, My tool Carousel crashed last night and when I tried to initialize the Carousel, the Motor just vibrating (shake hard) but not spin. I am not sure if Break, Encoder or Resolver cause the issue. Please advise. Thanks, David
  10. H

    breaker size for 240v 6.6A bandsaw motor, also adapter/plug?

    Hello electricians. I am not an electrician and am a beginner with limited electrical (I've only been shocked a few times.) experience/ knowledge. I know it may be best to pay for a licensed electrician, but I'm not ready/able to do that yet. The deal is: I have an old "Walker-Turner" bandsaw...
  11. E

    Star delta motor stuck in star consequences

    Hi Guys, Is my understanding of why it is bad for a star/delta motor to be stuck in star correct? 1) Star delta starting is used as a method of starting larger motors at a reduced voltage of root 3 , which reduces the large starting current drawn by the motor during start up, therefore...
  12. 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.
  13. L

    Rock saw power feed motor help!

    I have a rock slab saw that needs rewiring. The saw's has a 1.5 hp motor as the power source for turning the blade, and I need to add a small 4 RPM motor to run the power feed with a 2 wire toggle switch to control it. It needs to be wired so the saw's main on/off switch turns on both the saw...
  14. E

    Motor FLC, Rated current, running current and nominal current.

    Good evening, 1) Is the motor current on the nameplate always the full load current: the maximum current the motor can draw without there being damage to its winding insulation. 2) Often in motor books, I see the term nominal current? is this the current that the motor draws under normal...
  15. R

    motor serial connection

    Hi. I found two single phase 110 Vac asynchronous motors (fans) connected in series to a 220 Vac line, something like this: live 220 Vac ----------- 110 Vac motor -------------- 110 Vac motor ---------------------neutral 220 Vac Is there any problems with this connection? the motors are...
  16. A

    Motor relay on Radial Arm Saw

    I have an old DeWalt 721 Radial Arm saw that recently stopped working. Initially I thought this was because one of the Start / Stop buttons disintegrated (came unscrewed) and spread its workings all over the floor. I subsequently changed both the switches like for like. (Rafi 1.10001)...
  17. L

    About a ac small motor

    I have a small motor that I use to sharpen my kitchen knives, this has like a capacitor, is for 2 wires, but dont have signs where the blue wire go and where the red wire go, this motor starts and soon it stops, how to test it, i have 2 images,
  18. M

    Configuring motor to run off single phase?

    We have got a hydraulic motor/powerpack for leveling legs of a trailer. However this trailer is running off a 15KW inverter, so the motor needs to run off single phase. The motor has come configured for 3 phase, however the motor plate does say it will run off single phase. Would i be right in...
  19. The apprentice

    motor used simultaneously

    Hi there, i will be on a job soon that requires two motors to control a belt that delivers grain to the opposite end of a grain shed these motors need to run simultaneously. this is due to the length of the shed which id say is 72 meters one motor at the start of the belt and another 72 meters...
  20. C

    Any Idea why my single phase motor ans speed controller are not working

    HI Guys, I bought this motor and speed controller used and tried wiring as per the diagram on the side of the speed control unit but the motor will not turn on. I am running it at 220v, when plugged in I do see the green led light up. There is not much info on the internet. But I was able to...

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top