three phase

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  1. T

    Two Three Phase motors on one Overload

    Hi All I have come across two 3 phase in line WOODS fans rated @ 0.22 kW / 0.6 amps connected together on one overload. This does not seem correct is there anyway this could be right ? Regards Tailspin :shocked::confused:
  2. G

    Help with three phase power

    Hi I need some help with 3 phase wiring. I'm fairly confident I'm right but haven't done it since I was 18. Would I be right in saying that normal 3 phase power for sockets are wired in star and you should end up with 5 cables at each outlet? L1, L2, L3, N & E? With a 3 pole isolator for...
  3. B

    Three Phase Value

    For 230 volts x 1.732, use 398....hi to all my fellow electricians. Kind you explain me what is the 398 answer from the given voltage. Thank you!
    • Bosscap19
    • Thread
    • aus electricians' talk phase three three phase value
    • Replies: 10
    • Forum: Australia
  4. C

    i need priceses on three phase instalations

    i am fitting a db board and 16 sockets an lights and emergency lights into a building, can any one help me on pricing the job ???????????????
    • casper123
    • Thread
    • aus electricians' talk phase three three phase
    • Replies: 13
    • Forum: Australia
  5. J

    three phase regs

    Hi I am doing an electrical installer course and have 2 questions that I cannot find the answer to in any of the books. 1) Socket outlets in the same room, connected to different phases should: a. not be connected to earth b. never be permitted c. be labeled 'Warning High Voltage' d. be...
  6. R

    Main switch on Three phase board

    Hi, Changing an old Three phase board in a school today which feed off-peak storage heating and underfloor heating. The supply Is TN-S. The board were fitting in a Crabtree Loadstar, and comes supplied with a three pole isolator. As this is effectivly the main board for the effected...
    • Richard
    • Thread
    • aus board electricians' talk main main switch phase switch three three phase
    • Replies: 6
    • Forum: Australia
  7. W

    Three phase meter

    Anybody know where I can get a 3 phase meter from? I'm struggling to find one for next week. Cheers.
  8. M

    pfc testing on three phase with fluke 1561

    Don't do much three phase and a bit of help would be helpful.On three phase when testing for pfc am I right in saying that I connect the leads to L-N and don't need the earth lead connected. As I'm not sure of putting the meter across all phase, so double the reading that is highest of the three...
  9. L

    Three phase voltage query.

    Hi Guys, Don'tdo that much with 3 phase but have an issue at the moment. Had a 3p motor burn out on a farm elevator. Anyway motor was returned to the reconditioner as it was only about 7 months old and it's NOT in constant use. Reconditioner said 'It's a right mess inside looks like you've...
    • Lofty
    • Thread
    • canada electricians' talk motor phase query three three phase times voltage volts
    • Replies: 11
    • Forum: Electrician Talk | All Countries
  10. F

    three phase transformer wiring

    Hello out there. This is a werid one I have never heard off before. Just purchased a pair of 5 ton column lifts so I can work on my pick up. Anyway, i purchased the lifts and was told they was three phase ie 415v. lifts were delivered and they had a 16a 5 pin red plug, no problem i thought...
  11. B

    Single phase to three phase converter?????

    I recently looked at a job where a customer is turning his garage into a workshop and he wanted me to check the electric was satisfactary. The garage is fed by a 2 core 4mm SWA from the house with an earth pin outside the garage and a 4mm earth going to an rcd board. When the customer showed me...
  12. M

    three phase energy saving moudules pumps etc

    hi everyone we have a three phase supply (63 amp hrc fuses) which feeds a star delta motor control panel with interlocking door panel switch contactor. This is operated via a bms (building management system) , boiler control system and the energy saving system is wired in after the delta...
  13. D

    3.68Kw system on three phase

    Hi I am an end user and want a 3.68kW system installed at work. We have three phase but don't have the money to do the full 10kw job. My installer is proposing installing a 3.68kw system and connect to only one phase. He is using an SMA 4000TL and 16x Upsolar 230 panels My concern is...
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