three phase

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  1. D

    MEM 3 three phase Boards

    mem 2 used to have a horizontal connection kit for linking two boards side by side Do you know if MEM 3 has this or have they removed it??
  2. 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...
  3. 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 motor phase query three three phase times voltage volts
    • Replies: 11
    • Forum: Canada
  4. 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...
    • FattyJr
    • Thread
    • canada phase three three phase transformer wiring
    • Replies: 31
    • Forum: Canada
  5. 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...
  6. 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...
    • maddfridge
    • Thread
    • canada energy phase pumps saving three three phase
    • Replies: 2
    • Forum: Canada
  7. 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...
  8. K

    1.2 kw system and three phase supply

    Next month we are installing a small 1.2 kw system (5 panels I believe), that is all that the roof can fit, but the supply is three phase. Hardly seems worth it, but it's a local authority job and I think it's more of a show home. Any ideas how to go about this, as I presume I would only be...
  9. M

    why you need to balance a three phase systems and what a unbalance load does?

    Hi everyone i'm currently halfway through my cg2330, i wonder if somebody can help me on balance and unbalance load on a 3 phase systems the basics i needs only , they are split into single phases systems i want know about efficiency, running costs, cable and switchgear sizes advantages etc.. thanx
  10. R

    moving three phase.

    hi, im an electrician whos working at an office/shop referb. theres an existing three phase supply which was doing shop and office only using single phase. theres going to be a wall dividing the two. needing new board for shop. as office only needs two of the single phases say blue and yellow is...
    • rosscohans
    • Thread
    • canada moving phase three three phase
    • Replies: 6
    • Forum: Canada
  11. D

    single or three phase inverter required?

    hi all i have an upcoming installation in an existing commercial property requiring 2x AWHP and possibly PV of some sort i intend to run a three phase sub main from the existing d/b to supply the heat pump circuits (existing incoming supply is 100A 3 phase) Would it be advisable to feed the pv...
  12. W

    Three phase incommers

    Morning lads, Having a bit of a moment and struggling to get my head around a few things (that are undoubtedly very straight forward). Im trying to work out what available power i have to play with in anticipation of some heavy machinery coming into the warehouses in the next few weeks. We...
    • wade88
    • Thread
    • aus phase three three phase
    • Replies: 11
    • Forum: Australia
  13. S

    Volt drop three phase

    When calculating volt drop on three phase, I can't remember if I my calculation is using the total current on all three phases or just each individual one. So each phase at 400v is 3.8A. My calculation was 2.5mm minimum. A three phase motor run in SWA. The run is 200M underground.
  14. R

    Three Phase Sauna

    Hi, I was wondering if I could get a little advice off you guys. I'm installing an three phase 8kw sauna over roughly a 50m run. The board is a typical 20-30yr old three phase commercial board with no rcd protection. I'm thinking 5 core 2.5 swa for the cable up to the sauna then into some kind...
    • Robert Casey
    • Thread
    • canada phase sauna three three phase
    • Replies: 2
    • Forum: Canada

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