3phase | Page 2

3phase

Recent contents View information Top users
  1. G

    3phase inverter on domestic supplly

    A friend of mine is building a workshop out his back. One of the machines is 3-phase with a 7.5ka load. It's a 40m run from his fuse board in the house to the one I want to put in workshop. There is only going to be a 2 twin 5ft flossys, 6 double sockets(no big load just hand tools, radio...
  2. B

    Help 3phase dishwasher

    Hi guys fitted a commercial dishwasher today extended c/w supply made drainage alterations etc.Being a helpful stupid bloke connected up cables.Didnt know neutral changed from black to blue so have connected up incorrectly none of the breakers tripped am I in the brown stuff or not im a plumber...
  3. J

    Separate fuses for 3phase supply

    Hi All, Just trying to double check if there's a reg suggesting a 3phase circuit should have over-current device that disconnects all line conductors at once? Got an old rewireable board supplying 3phase motors with 3 individual fuses. I'm looking at 530.3.1 ................... Can anyone...
  4. G

    Eicr 1361 fuses 3phase circuits from db

    Come across a DB in a workshop single 1361 fuse carriers three phase circuit. Does this go down as a c3 or c2? Potential if a fuse goes unit would stop but you would still have 2 phases at it??
  5. L

    3phase ac electric motor

    Can some one explain in simple terms how a 3 phase electric motor works? thanks in advance.
  6. 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...
  7. 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
  8. 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
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. J

    Bs number for a 3phase 20amp breaker?

    Must be blind carnt seem to fine this is the regs
  14. 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...
  15. 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...
  16. S

    terminating a 3phase db

    anyone have any guides on how to dress cables inside a 3phase db cheers
  17. S

    terminating a 3phase db

    hi i have to connect up a 3phase db next week its a 48way ive done countless cus and dipped circuits into dbs b4 anyone have any guides to doing it correctly
  18. C

    Current imbalence in a 3phase p.t.o driven generator.

    A number of 3 phase induction motors and a single phase motor are fed via a p.t.o driven generator. There is a small current imbalence between the phase feeding the single phase motor and the other 2 but this i think is acceptable. How much of a current imbalenbce in amps (A) would be deemed...
  19. D

    single phase inverter, 3phase supply is this acceptable under G83/1

    has anyone had experience of connecting a single phase inverter ot a commercial 3phase supply, are there any issues?
  20. C

    4KWp 3phase?

    An instalaltion 4KWp in a new build house with a 3 phase supply. Would you: Install a 3phase inverter? not sure they are made for such small instalaltions, Install 3 single phase inverters and a monitoring device to cut them all out if one phase drops. Install as a single phase system and...

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

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top