motor

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  1. B

    Scooter Dc motor windings

    I have a 24 volt 350 watt scooter motor that need rewound. The specs say 3000 rpm no load. Does anyone know how many turns are on each coil?
  2. Lucien Nunes

    Motor cable - style question

    I'm about to replace the cable from a starter to an existing 2hp 3-phase 3-wire motor adjacent. The motor is rigidly bolted to a bed and has a direct shaft coupling, i.e. it is not on slide rails. Normally, I would use stranded singles in steel conduit with a flexible conduit link to the motor...
  3. D

    Siemens Reversing the direction of rotation of the DC motor

    Hello everyone. I have 1 Siemens "1GG6164-0JH40-6VV5-Z" Model DC Motor. It works in 2 phases. What should I do to reverse the rotation direction of this motor? I have marked the B1 and B2 Terminals in the Photo below. B1 and B2 are phase ends.
  4. Rockingit

    Motor maths - this makes no sense

    I've got a large USA artist music tour starting soon across Europe so we're having to sort out lots of reducer transformers etc, no big deal. But this has me stumped.... A USA manufacturer of a moving platform is requesting a 208v transformer @ 30A for the platform, but having doubled checked...
  5. jolb72

    black screen when fridge motor or heater starts

    Hi there I’m looking for some help as I have what seems to be an electrical issue. It seems to relate to my computer PC, the fridge freezer in my kitchen and my electrical heater. My computer PC tower is connected to my smart TV so I can use my TV as a PC monitor as well as a TV. The problem...
  6. mlxmilano

    Help to wire washing machine cables into wall motor protection switch

    Hello, I have two electrical switches in my house that should be connected to the washing machine and the dryer machine, respectively. After having opened them I found 5 cables: black, white, red (connected to the central part) and yellow, yellow-green. I am nearly sure the yellow is the...
  7. i=p/u

    Single phase motor humming and heating up.

    Hi, morning EF. I was looking at a single phase motor yesterday attached to hydraulic pump for cardboard bailing machine that seems to be temerpemental with stop and starting and making humming sound. I checked the contactor was working first and voltage was going to motor, I clamped the cable...
  8. C

    How to wire an instant reversing motor

    I need some advice on how to wire this motor please! Its for a large clothing conveyor . 120 volt power . Its an instant reversing motor, controlling the direction with a dpdt toggle switch and a separate forward and reverse contactor. Thanks for any advice!
  9. bigspark17

    Ramp up down switch single phase motor

    Weired one. Looking for info or past experiences. Called to a garage very old ramp 40+ yrs old not working. Very old switcc looks like its burnt out, so before i take on finding a replacement i wanted to make sure motor ok. So bypassed up down switch and turned on isolator. (Single phase motor)...
  10. J

    Phase to Earth fault on a 3 phase motor supply

    I had the 20 amp 3 phase breaker off and was testing for voltage at the motor terminal box. I had nothing between phases but had 230 volts from each phase to earth. Why might this be.
  11. S

    Motor options for electric tug

    Hi Everyone I'm sorry if this is not in the right area. I am building my own small house, I need some help moving materials around the site, I like the electric tug type design in the pic attached. I am able to design and fabricate my own custom version. I want a off the shelf low torque...
  12. 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...
  13. 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...
  14. 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...
  15. 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?
  16. 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.
  17. 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...
  18. 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...
  19. 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...
  20. 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...
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