single phase

Recent contents Top users
  1. Q

    Possible to run a 3 phase 30hp 230/460 90 amp Dual rotary screw air compressor on 220 single phase?

    I have a small mechanics shop in a rural area with no access to 3 phase. I picked up a air compressor cheap and knowing at a min. I will need a phase converter. I don't think a VFD or a static converter can do it. Is it even possible to run a 3 phase 30hp 230/460 90 amp Dual rotary screw air...
  2. U

    32amp Single phase rackmount distro

    Hi, Just someone setting up a mobile soundsystem for small pubs/clubs with a few questions about a distro. People IRL can't seem to answer my questions and the pro-sound light forums generally get too much conflicting information...
  3. P

    cable calculations single phase / 2 phase

    Hello all Just doing some cable calcs for a shepards hut site, the site has an incoming supply of 2 x 250a single phase supplys, was hoping to run a 4 core down from incomer to a board then split off to each hut. Do i have to work it out on single phase 230v or can i work it out on 400v
    • pjlelec
    • Thread
    • cable cable calculations calculations phase single single phase
    • Replies: 5
    • Forum: UK Electrical Forum
  4. J

    3 Phase to single phase

    Hi, As a DIYer I`ve quite a bit of wiring up domestic house single phase experience but no 3 phase experience. So I have been offered a two post car lift which currently operates of off a 3 phase supply. I have a brand new single phase 3hp motor which I believe will run the lift but I assume I...
  5. C

    20kVA single phase generator grounding question

    How should grounding be made to a 20kVA single phase generator set feeding a domestic property via a manual change over switch? At the generator's alternator neutral is bonded to earth. The generator will be some sixty feet from the mains input box of the property fed by SWA cable. The...
  6. G

    RCD type- A or B to supply single phase UPS

    Been looking at what type RCD should be fitted for small single phase individual UPS. Looked at Hager rcd selection guide under type B has 3 phase UPS but nothing for single phase . https://hager.com/uk/support/regulations-18th-edition/selection-of-rcd-types I am hoping type A will do ...
  7. G

    Adapting a 3 phase industrial machine to single phase

    Hello, I am hoping this is in the correct forum. To start, I acquired a film processing machine that runs on 3 phase. Now before getting the machine I fully understood it's power requirements and the cost of getting 3 phase installed at my house. I figured as processors are mostly a few...
    • Gareth Blackstock
    • Thread
    • 3 phase ausie elec industrial machine phase single single phase
    • Replies: 19
    • Forum: Australia
  8. P

    3 Phase meter with single phase imbalance

    We have two single phase heat pumps on two phases of a three phase supply the third phase has an immersion heater. The heat pumps are set up as master and slave with the master doing virtually all the work (22000kwh/an). We also have a three phase 15Kw turbine. generating 45000kwh/an Our...
  9. Calebp43

    Neutral current in a single phase installation confusion

    In a 3 phase system the neutral carries current that is unbalanced. Okay. So in a single phase domestic household the neutral carries the same current as the live otherwise the RCD will trip. So does that mean if we have a perfectly balanced 3 phase system then if I go to one of the phases and...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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
  15. Peter55

    Earthing question - three phase into main building, then single phase to EV charger

    Hi there, new to the forum and in final stages of completing C&G level 3; need to complete design project to complete. Am struggling to get my head around how to draw up correct circuit diagram showing EF Loop path for EV charger where initial supply is described as 'three phase TNCS' feeding to...
  16. N

    Bringing single phase off three phase board

    Hi all, new to this thread and just looking for some views. I have today attended a industrial unit which is being converted into small individual offices. An electrician has previously been here and has taken 3 individual sub mains from the existing three phase consumer unit to single consumer...
  17. J

    3 phase rotary inverter from single phase.

    My 3 phase cnc lathe is rated at 27 Amps on the manufacturers website. When I mentioned that I want to run from a single phase via a rotary inverter I was told that it will need 27 A per phase therefore 3x27=81 Amps from my single phase. Is this correct? I reckon the machine is about 5hp.
  18. T

    Is there such thing as 4kW, 115VAC , single phase equipment?

    Hi, We are being asked to make a power supply for a Bass amplifier......its 4kW, from 100-265VAC. Does that sound right? Woudlnt 4kW from 115VAC always be done with three phase? (this kit is for mulitple different countries)
  19. 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...
  20. 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)...
Best EV Chargers
Best EV Chargers by Electrical2Go! The official electric vehicle charger supplier.

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

Advert

YOUR Unread Posts

Daily, weekly or monthly email

Receive a daily, weekly, or monthly email containing a digest of new and recently updated threads.

Advert

TrueNAS JBOD Storage Server

UK Tiling Forum | Tilers Forums
UK Tiling Forum by Tilers Forums UK
Plumbers Forums | Plumbing Advice | Gas Forum
Electrician Tips from Professional Electricians
JBOD Forums: a forum for JBOD storage server advice
JBOD Suppliers: JBOD Storage Server Supplies
Back
Top