three phase

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  1. D

    Three phase tap off plugs

    Hi all Any body know a good supplier that sells the three phase tap off ( plug in ) units ? such as :- KSE 02CG5 AND KSA 02CG5 ?
    • daiplayer
    • Thread
    • phase plugs three three phase
    • Replies: 0
    • Forum: UK Electrical Forum
  2. D

    Three phase motors

    I'm studying my HNC and I'm struggling a bit with motors, does anybody know much about three phase induction motors Cheers, Davey
  3. D

    Three Phase Board 230V

    Just after people's opinions seen this a few times and although not incorrect still makes me think: Three phase board 8-12 ways usually linked out to run on a single 230V supply. Seen second hand boards converted using bus bar to make in affect a 36 way single phase board. Always have been...
    • Dizzy_Maskell
    • Thread
    • 230v board phase roman three three phase times
    • Replies: 27
    • Forum: UK Electrical Forum
  4. sajeel

    Three phase question

    Hi Just did a three phase consumer unit, tested insulation and continuity before commission tested three phase in correct order. When I switched on it sparked and took out l1 and l2 fuse, incomer has two faulty lock screws at top apart from that any other ideas ?
  5. P

    three phase sequence testing

    Hi guys, as the title suggests just trying to get my head round three phase sequence testing, if I understand it correctly this is confirm that the three phases are in sequence.....obviously :) Now as I understand it this is obviously a live test and a three test leads are connected to L1 L2 L3...
    • Pondy
    • Thread
    • connected leads obviously phase sequence testing three three phase
    • Replies: 12
    • Forum: UK Electrical Forum
  6. G

    Single phase installation off a three phase cutout and distributors fuse details??

    Hi guys, Just finished a job installing communal lighting and power in 7 blocks of flats, The supply for each building is the same a TNS 3 phase cutout with a feed jumped off one of the phases to the meter and from the meter supplying our single phase CU, the flats are then jumped off various...
  7. R

    Three phase motor

    Good evening, I had to troubleshoot a three phase milling machine earlier. I'm not especially hot of plant like this, but i'm quite confident that the control system is good, but that the motor is faulty, In that when power is applied it pulls the breaker. It's a 1HP 3 phase motor,drawing...
  8. Y

    three phase problem - supply/motors/board?

    Hi all, I'm new here so :flowers: I have a small industrial unit with three phase and single phase installed. The single is obviously for lights, standard sockets, phone, computer etc and is working perfectly. The three phase supplies a tyre changer (10A breaker) and an air compressor (20A...
    • yorvac
    • Thread
    • before board breaker phase problem three three phase
    • Replies: 17
    • Forum: UK Electrical Forum
  9. R

    Economic Advantages and Disadvantages Three Phase Compared to Single System

    What are the economical advantages and disadvantages of using a three phase distribution system compared to a single phase system?
    • RiCkRuD3
    • Thread
    • electricians vans phase single system three three phase van vehicle
    • Replies: 7
    • Forum: UK Electrical Forum
  10. A

    Three phase 4.4kW motor

    Hello there, I want to connect a three phase 4.4kW motor in star/delta and I have wiring diagram, but I want to know what parts exactly need to do it. If anyone can help me, please? Thank in advance
  11. S

    Three phase required?

    Hi all, I have a customer who wants a new kitchen. Previously he has paid for an NICEIC electrician to wire in countless under floor heating throughout his house on one 32amp breaker, I calculated potential 60 amps if they were all on at the same time. He/she has since gone out of...
    • swifters
    • Thread
    • phase required three three phase
    • Replies: 15
    • Forum: UK Electrical Forum
  12. D

    Three phase RCD tripping

    Hi Folks, I have a question about a property in Spain and its power supply I think I have messed up with my electrical company and asked them to supply me with a lower potential than I require. The house did have a 12,000 KW supply, I asked for a night rate and in order to get this I had to...
    • Davido
    • Thread
    • not uk phase power rcd rcd tripping supply three three phase tripping
    • Replies: 20
    • Forum: UK Electrical Forum
  13. A

    Testing single phase and three phase

    Hi to the forum This is my first post on here; I am a semi-retired (due to my knees being knacked.) Worked most of my 40 years on the domestic side ie rewires, kitchens, central heating etc not a lot on three phase. Been asked now by a mate to upgrade electrics in a shop premises, the upgrade...
    • Alshaw
    • Thread
    • machine meter phase premises single single phase testing three three phase
    • Replies: 0
    • Forum: UK Electrical Forum
  14. C

    Three Phase inverter for a single phase install?

    hello there. I am talking to some people at the moment who wish to install 10KWp on a single phase of a three phase supply. The single phase supplies the house and they want to make as much as as they can from the system. Assuming all is well with the DNO etc. I would propose two 5KW single...
  15. A

    Three Phase supply Substations

    Does anyone know what the min size supply to a building would require its own sub station?
    • adammid
    • Thread
    • phase supply three three phase
    • Replies: 9
    • Forum: UK Electrical Forum
  16. R

    How to size earth conductor of three phase generator

    75kva 3phase Maxcurrent per phase 108A Outgoing feeders from genset 4C 35mmsq cable + 16mmsq CPC Earth conductor from genset earth point to earth electrode = 50mmsq Question: why 50mmsq? Isnt 16mmsq sufficient since cpcs are sized at S/2 half of phase conductors. Are earth conductors to earth...
  17. H

    Three Phase Neutral and Earth

    Got to run this in. Is four core and armour as earth acceptable or do I need to run a separate earth??
    • highspark
    • Thread
    • earth neutral phase three three phase
    • Replies: 23
    • Forum: UK Electrical Forum
  18. S

    three phase

    Hi chaps got a job coming up wiring in a kiln. We put it a single phase one in a wile back ran in two three core swa's one did the kiln the other did the a consumer unit. Customer now wants a three phase kiln put in and do away with the consumer unit as its no longer feeding anything, both swa's...
    • spidersparks
    • Thread
    • phase three three phase
    • Replies: 28
    • Forum: UK Electrical Forum
  19. S

    Three phase pfc too high!

    I have a three phase dis/board with a measured PFC of 10 kA across each phase (20 kA total) and a Ze of 0.03. The origin is 100 amp BS 1361 type IIb x 3 and the tails are 1.5m long. The MCB's are type B and have a short ciruit rating of 6 kA, should these be changed for 10 kA or higher. The...
    • shaun gold
    • Thread
    • pfc phase three three phase
    • Replies: 4
    • Forum: UK Electrical Forum
  20. W

    3 Three Phase Inverter ! Question

    Hey, I had a quick look though the forum and although there was a few bits about 3 phase inverters nothing quite answered the questions I had. So we plan to do our first 3 phase job… we have done hundreds of the usual 4kw etc… the job will be 30 panels (250watt) and we plan to use a 7000 Soalr...

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