3 phase

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  1. Shaun-

    3 Phase Metering Question

    Good morning, So I’m working on an existing 3 phase solar system and the customer wants a way to use the huge mass of exported solar on their pool. So currently looking at possibly using MyEnergi Eddi’s or something similar to power a 3 phase heater element (probably split into 3 single...
  2. H

    3 phase 400v supply to 2 phase supply

    Hi I have a question hoping I can get some help. I wanted to know if there is a 400V 3 phase supply (A/A/A) terminated on the primary side of a TMD breaker can you take 2 phases from the secondary side of the breaker (A/A) to create a 400V supply only excluding E/N and use to power up your...
  3. O

    Strange box attached to 3 phase meter

    I didn't get a picture so will have to wait until I go back again but I've done a crude drawing of what was there. Its in a commercial set up with a poly-phase meter, the distribution board and switchgear were all quite old but the meter looked fairly new, it was the usualll 3 phase in and 3...
  4. happysteve

    3 phase cooker - idiot check

    I'd appreciate a quick sanity check, thanks in advance: New circuit for a 3 phase cooker, in a community centre (run by a charity). Total load 16.5kW: L1 27A, L2 27A, L3 15A. (6kW oven, 6 hotplates: 3x 2kW, 3x 1.5kW). Commercial setting so no diversity: 3x 32A OCPD. (?) TN-C-S, so Zs...
  5. P

    3 phase 380V welder to run on a 3-phase 220V power

    I have an old Migatronic Automig X 200 welder configured as 380V 3-phase unit. Migatronic for spec. I have a 220V 3-phase point in my garage, but that does not work well, obviously. What would be the best option to get this welder to work? Would it be possible to rewire it so it can work on my...
  6. bigspark17

    3 phase surge on reenergising panel board

    Hi all.. Bit of a nightmare afternoon,, testing a caravan park TP&N panel board IR testing while board isolated before returning power (merlin gerin panel board) over the next 30 mins customers on park are reporting loud bangs inside some of there vans, boilers and electric fireplaces (with...
  7. D

    3 Phase requirements

    Hi all i have asked a electrician about the mic level i would need to power the following machines a 45kva cnc mill, a 32kva cnc mill and a 60 kva cnc lathe but have been unable to get an answer. I would like to get the 45kva mill and the 32kva mill sorted first it will be 6-12 months before i...
  8. R

    3 phase (220 volt) pizza oven to 1 phase (220)?

    How can I convert a 3-phase (220 volt 5.6 kw) pizza oven to 1-phase (220) 2 heating elements, no motor.
  9. D

    UK 3 phase sub board addition

    Hi Looking at a job currently adding a 3 phase solar installation but the distribution board is full obviously a new board is the best option but if the customer isn't interested in this what do people usually do? Add a small 3 phase board and use Henley blocks, I've never seen this done but I...
  10. will_505

    Will 4 pin phase converter work with a 4 pin 3 phase compressor

    Hi, leading on from my question the other day about running the 3 phase compressor off my 8.5kW generator I have since got my hands on a 240v to 3 phase converter. My question being the 3 phase output from the converter has only 4 wires/ seperatly cores coming out where as my compressor...
  11. O

    4 pole 3 phase breaker

    I have above mentioned breaker which does not have any markings to show which is the neutral pathway, I wish to fit it directly above a 3 phase 4 way surge protector which has its neutral on the right hand side and so would ideally want to connect the neutral above it on the right hand side of...
  12. B

    3 phase voltage drop calculation?

    Hi! Once you've calculated the voltage drop in Volts - you divide by 400V for three phase right? For example: three phase 30kW appliance, 10mm 90 degree SWA, 45 meter run. 30,000/sqrt3/400 = 43.3A = Ib from the table 4E4B, a 10mm cable gives 4.7 So then 43.3 x 4.7 x the 45 meter run gives =...
  13. C

    3 phase shed feed in NSW

    Gday lads. Have a question about a 3 phase shed feed. I have a roll on 16mm2, 3 core and earth orange circular. Can I run a 16mm2 SDI neutral in the same conduit. And anything I need to comply with in SNWR. 3 phase Will be for shed and mainly to run welder
    • chang14
    • Thread
    • 3 phase ausie elec phase shed
    • Replies: 6
    • Forum: Australia
  14. T

    How to check if 3 phase is easily available for a flat ?

    My daughter lives in a flat in London in converted circa 1900 5 storey terrace in Bethnal Green. She is considering getting a Stiebel Eltron instant water heater fitted, however if she wants one that is powerful enough for a bath, she needs 3 phase. Are flats like houses in that each flat is on...
  15. A

    Am2 3 phase testing procedure

    Hi got my am2 Tomorow and not sure on how to test continuity for 3 phase circuits, like where to link out also for IR test aswell
  16. S

    Solar 3 phase kva limit

    My client wants to install a 100kw solar system. He has 3 phase and 100 amp fuse installed on 200kva transformer. Is 69kw the limit on 100 amp fuse or can he go over without a limiter fitted? Thanks
  17. Q

    Possible to run a 3 phase 30hp 230/460 90 amp Dual rotary screw air compressor on 220 single phase?

    I have a small mechanics shop in a rural area with no access to 3 phase. I picked up a air compressor cheap and knowing at a min. I will need a phase converter. I don't think a VFD or a static converter can do it. Is it even possible to run a 3 phase 30hp 230/460 90 amp Dual rotary screw air...
  18. L

    UK Where to measure Ze, opinions welcome!

    Where do people record the Ze & PFC of a 3 phase installation, if there is say 10m of 25mm tails between the 4 pole isolator (next to the meter) and the 3 phase distribution board, therefore some (though negligible) resistance? Do you tend to test at the origin, and record that result, or do...
  19. S

    Recommend me a Type B (3 Phase) Distribution Board

    Need to source Type B 3-phase distribution & 3P MCBs for EVSE, 1P RCBOs etc. so my sparky can install. A 6-way 3P board will suffice. Wondering what the general concensus is. Say, Contactum at the cheaper end vs Schneider Acti9 at the upper end. Drawn towards the Schneider as super neat...
  20. K

    Do I have 3 phase electric?

    Hi there I am wanting to get a 22Kw car charger installed which I believe needs 3 phase electric. I seem to recall that our house has a 3 phase supply as the previous owner had a workshop in the garden with some pretty powerful machinery. How can I tell if it does have 3 phase? Thank you in...

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