motor

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  1. B

    I have a motor supplied by 2 hot legs from 3 phase 480v. One line to motor is interrupted by a pressure switch.

    I have a motor supplied by 2 hot legs from 3 phase 480v. One line to motor is interrupted by a pressure switch. With one line to the motor hot at all times. Why does the motor not burn up?
    • Bassman
    • Thread
    • 3 phase legs motor phase pressure supplied switch
    • Replies: 14
    • Forum: USA
  2. T

    Help me with inverter vfd to 3 phase motor

    Ac power supply 440V Inverter - Input 380-480V 50/60hz 11.2A Output 0-480V 8.5A 6.8kva 3.7Kw 3 phase motor- 2.2kW 50Hz Should i use delta or star connection? newguytoelectricity
  3. J

    DIY Pump motor repair

    On this pump motor the yellow wire (next to the 3) broke off. I am unfamiliar with the connection. Do I need a special tool to reattach this (after I strip the wire)
  4. M

    Single phase induction motor schematic

    Hello, I've found an old motor originally designed for operating jealousies. Could you help me read and better understand the following schematic? As far as I understand, it is a single phase induction motor, there is 47 uF capacitor connected to it in order to start. There are 3 contacts...
  5. J

    Which controller for this brushless motor

    I am starting to get into brushless motors but am still having a hard time understanding all of the terms. I am reading books on electric motors and wiring but still need some additional clarification. I am purchasing this brushless motor: Amazon.com: DYS D3548 1100KV Brushless Motor Outrunner...
  6. M

    Setting Motor Overload

    Hi, How do you set a motor overload? I have read that you set it at the FLA of the motor but also that you should consider service factor. Which is correct? Thanks.
  7. M

    Need help with Reversible Motor

    Hi, I am building a motorized easel for large format paintings that do not exceed 100 lbs; average probably more like 50 lbs max. My rough 3D diagram does not show the motor or pullies, etc, but I hope you can get an idea of where these things would go. Motor mounts on the bottom. Cables will...
  8. N

    Siemens RCCB trips even while inductive motor is off

    Good day everyone This is my first thread here, and I'm writing because I have a problem which I'm not sure how to solve. Since its company money, I just want to make sure that the conclusion to the problem is correct. We have an autoclave that works at 121 celsius to sterilize with steam. Its...
  9. J

    How to wire motor plug

    Hi everyone I purchased a bench polisher which looks to have come from China. It says its 220v single phase and should work fine in the UK. The power cable has 4 wires in it so I'm confused how to wire a standard UK plug. I have attached a photo of the cable. Any advice would be much appreciated.
  10. K

    Motor connection to 220v

    I have a two value capacitor motor from china photos will includes i believe there country runs 220 standard single phase and I am in USA Sn: it did spark accidently when i hit black wire on another wire and kinda started Thank you
  11. polo1

    Motor protection

    Peeps, I have been asked to run a supply for a single phase, 3.2a extract fan (systemair AW500E4). Is it a requirement, recommended or just good practice to include thermal overload protection in such a situation? Thanks.
  12. Pete999

    Pete's Videos Motor maniacs everywhere

    Enjoy
  13. H

    two motor star delta

    hi guys i have an issue with one of two motor running star delta for a concrete mixer one motor is pulling out more current than the other one almost 10A difference (1st=39 , 2nd=48) knowing that the 2nd is rewinding both motor are same company
  14. V

    Need help identifying this starter motor

    Numbers on the body read: 270300, probably a 12v but could be 6. any information would be appreciated.
  15. T

    DIY Stepper motor output reducer

    Hi, Minor time DIYer mostly doing little fun projects, so my skill level is a bit limited. well, I also have a 3d printer. Now, I know all electrical motors generate AC power when freely spinning. Problem is, when there is a need to manually move the head or the build plate, this, of course...
  16. Lucien Nunes

    What kind of motor is this?

    Interesting old machine still in use. I've talked about similar motors before but not this type AFAIK. To the trained eye, the shape of this one is a giveaway, from which you can identify its maker and the technology it uses, and probably say something about the available electrical supply. In...
  17. G

    Wiring a fiat starter motor

    Hi all Newby here in dire need of advice I have managed to lose the wiring order on my fiat fiorino van starter motor I have 3 wires 1 Goes to alternator 1 goes to battery and 1 goes to either ECU or ignition Battery has 12.97 volts (its Fine) The battery definitely connects to the empty...
  18. J

    New Lathe Motor - 1 Phase - DOL or 3 Phase - VFD?

    Hi All, A mate of mine recently acquired a rather nice wood turning lathe they'd like to get running out in their workshop. However he admits his workshop is rather old and while he's not bothered, I'm concerned about drawing too much current (I'm trying to convince him to get the wiring...
  19. R

    Testing an Old motor for restoration ?

    I have acquired an old British Thompson Houston 1/3 HP BKS 2410 single phase motor on a pillar drill, it needs new bearings before I can test run it, my question is can I use a multi meter to check the windings and find out if its a go-er at this stage and worth restoring ? If so how ?
  20. J

    Why do soft starts tell you to set the overload at (delta FLC/1.73)

    Hi I have a question on soft starts. Why do soft starts have motor FLC delta /1.73. I’m confused as I understand star delta it is set at 58% of the full load current as the overload is in line with the windings. Thanks for your help in advance.

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