3phase

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  1. L

    3phase vehicle ramp

    Hi guys, hope your all well and enjoying the weekend. Just wondered if you give give me abit of your expertise. Been asked to sort a few bodges out at this car recovery place. When i say bodge jobs, it mist have been hell of alot of DIY for the last 30 years. New owners have took it over...
  2. C

    Taking a single phase suply from a 3phase transformer.....

    Have got a Three phase transformer wired in star on the 7th floor of a part built tower block and the builder wants another tranny on the 8th floor to supply the works on that floor. There is already a single phase tranny on the 8th.. (not yet wired up) Is it possible to take a single phase...
    • Crosswire
    • Thread
    • 3phase phase single single phase taking transformer
    • Replies: 19
    • Forum: UK Electrical Forum
  3. G

    new house 3phase heat pump

    new house guys with a new heating system through mcs real scheme 3 phase supply run into house the pump is the only piece of equipment requiring 3phase , question is looking for best way to do this was thinking give the house itself the normal dual rcd db then from 3phase mains to lucy...
    • glasgospark
    • Thread
    • 3phase heat heat pump house new pump
    • Replies: 49
    • Forum: UK Electrical Forum
  4. keniff

    Voltage drop and 3phase

    I'm having a bit of a blonde moment, I'm trying to work out the volt drop on a 3 phase Submain, the Submain is to be supplying a 3phase board loaded with rcbo's all single phase loading, I can't for the life of me remember how to do it I think it's working out the single phase vd and multiplying...
    • keniff
    • Thread
    • 3phase cable final having neutral phase voltage voltage drop volts
    • Replies: 12
    • Forum: UK Electrical Forum
  5. K

    3phase mains boards?

    Im going to be doing my very first 3phase mains board tomorrow, has anybody got some tips and advice they could give me?, and also has anybody got some photos of any 3 phase mains boards they have seen or done? thanks
  6. B

    3phase motors

    Hi all Has anyone got any decent links for notes on 3 phase and single please motors?? All kinds? Cheers
  7. P

    3phase question

    Hi guys, I'm mainly a housebasher but done a few bigger jobs when serving my time. In past two years I've wired my dads pals car garage. Nothing major just wired an office some extra lights etc also wired 3 3phase car ramps. Now the problem/question I have is when testing circuits everything...
  8. C

    3phase to single phase question?

    Hi all! Just wired my first 3phase compressor and got it to run the right way' The customer then wanted to move the compressor to another premises with only a single phase supply! He asked can it be done? I answered "......Erm I think so" Help! The compressor is 3phase and earth. Without...
  9. L

    3phase ac electric motor

    Can some one explain in simple terms how a 3 phase electric motor works? thanks in advance.
  10. D

    Installing a 200a MCCB in a proteus 3phase board.

    Hi everyone, I'm a newly qualified electrician and im working for a company that have asked to the fit a mccb, my boss sent me this email today and im not completely sure what he means, any help would be great as I really dont want to call him tomorrow asking how to install it. Any help would...
  11. L

    full load current of a 3phase 1.5Kw motor

    can anyone please help me with this. how to calculate th full load current of a 3phase 1.5Kw motor, i need to know this to set the overload relay to the value, thanks
  12. A

    4pole 3phase

    Hi, was wondering when you need to use a 4 pole isolator on main switch for 3 phase. Is it just for tt systems? also do you need 4pole isolators on appliances ie 3 phase cookers etc or is 3 pole ok. thNks
    • aaelectric
    • Thread
    • 3phase electricians' talk
    • Replies: 4
    • Forum: UK Electrical Forum
  13. G

    Domestic 3phase supply

    Just been asked to do some work at a house with a 3phase supply. 1 phase supply's the main consumer unit for the house, and the other 2 phases go into an off peak meter then into an old contactor before supplying two separate single phase consumer units for storage heating. My question is should...
  14. B

    Schneider vigi and 3phase mcb

    Hi all just posting to see if anyone knew what is correct asked local wholesaler for a 3 phase 63amp schneider rcd they sent a 4 pole vigi and a 3 pole mcb. however at the site all other 3 phase ciruits supllied by 30ma vigis and mcbs are 4 pole switching the neutral would it be incorrect to...
  15. i=p/u

    3phase out of balance?

    my sister could smell burning down back of the shop yesterday and phoned NIE power, when they came out they said they were lucky there wasn't a fire as phase 1 is overloaded with 67A and phase2 only 15A and phase 3 doing nothing............ she was told to use standby generator till loads was...
  16. M

    Be Aware:- Chint 3phase NXDB Termination Issue?

    All forum members should be aware of the potential termination issue with Chint 3 phase DBs and that there maybe still be effected stock at wholesalers (mine came from an internet retailer): Hi Dave, I recently fitted a couple of the new Chint NXDB 3ph distribution boards and while checking...
    • MarkieSparkie
    • Thread
    • 3phase aware chint electricians' talk issue termination
    • Replies: 7
    • Forum: UK Electrical Forum
  17. J

    Bs number for a 3phase 20amp breaker?

    Must be blind carnt seem to fine this is the regs
  18. M

    415v 3phase supply

    Hi, can anyone help?, I have purchased a sandblasting cabinet it has a combination of 3 phase 415v supply and 240v motors. I purchased a 3 phase converter to run it from a 240v supply. The problem I have is the sandblaster has 5 wires yellow red blue black and an earth. The 3 phase converter is...
  19. F

    new kwh meter on 3phase installtion.

    Got to seperate a small installation from main supply of the building attached. The db that feeds this small unit is on other side of wall as are the meters.owner want the small unit on own board and own meter. I'm it perplexed as to which meter to use ... 3phase.. Or 3 single phase...
  20. S

    terminating a 3phase db

    anyone have any guides on how to dress cables inside a 3phase db cheers
    • sahelectrical
    • Thread
    • 3phase electricians' talk
    • Replies: 6
    • Forum: UK Electrical Forum
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