split phase

  1. R

    HELP me figure out RCBOs in Split-Phase

    Hello, I have a hypothetical question (I'm an electrical engineer) to better understand RCBOs and how they are used in the USA. Let's say I would like to install RCBOs (or maybe just RCCBs) in my home to protect against residual currents. I am in the USA so my home has split-phase (two phases...
  2. D

    Can I run a Phase 3 boiler from a split phase supply

    Hi - first-time post from a complete novice. I want to install a 24kw electric boiler on my property but that size requires Phase 3 supply. Northern Powergrid don't install Phase 3 in my area (off grid) but can increase capacity via a split supply. Can I run a phase 3 boiler from a split...
  3. nitchinwales

    UK Can anyone get split-phase? Who does the work?

    Hello, I've been trying to find some information on split-phase today but not having much luck which brings me here. We're moving house to quite a rural area in Wales. Single phase is only available (c.£50k to get three-phase to the property) and I think we're going to need more power...
  4. B

    EV charger on split phase?

    I have a single 7kW EV charger that serves three holiday cottage. The supply to it is E7, with the night rate currently at exactly half the day rate, so most users charge at night, controlling the charge from apps. on their 'phones. Batteries are getting bigger, so it's becoming difficult to get...
  5. C

    Split Phase and Smart Meter

    Hi we have a split phase supply and had a EDMI ES-30B 3 phase meter fitted. Our readings are extraordinarily high. It is an old farmhouse but there is just myself and my wife and we are using 29,565 kWh per year. 81 kWh per day. We just have an electric shower, electric cooker, appliance like...
  6. V

    sizing neutral on a split phase 180 deg

    Hi, looking at installing a sub main down to a field to supply caravan hook up points. the supplier has stated they are installing 2 x 100 amp split phase 180 degrees apart. not worked on 460v/480v split phase - my question is how do i go about sizing the neutral. i plan to run a steel wire...
  7. robertl

    UK 3 phase inverter welder from Split Phase / Bi Phase supply 480v

    Hello all, I have discussed my power install before as i am sure a lot of you will remember as it is quite different to a normal setup. I have a split phase / Bi Phase system, 2 phases coming into the workshop from a center tapped transformer. 240v phase to neutral and 480 phase to phase. I have...
  8. robertl

    UK 480v Split Phase, new workshop, VFD's required

    Hi All, I've posted on here before about this, that time i was asking what people thought about phase converters as at that point i thought i could only get a single phase line at 100a for my new workshop. Turns out that after the DNO visited the site i can get a Split Phase connection put in...
  9. B

    PSCC on 460V Split Phase Supply

    Hi all. Been doing a bit of work on a pub out in the sticks with a 460V split phase Supply. When tried to test phase - phase PSCC my tester didn't play along. I was going to use the double p - n rule of thumb but then I got thinking, does this still apply to a 460v supply?
  10. M

    Split phase on new building

    Hi All I have read the previous thread on this but just wanted some help with a project we are about to complete. we are set up already for 3 phase we have a panel board 3 phase with metering to 6 outgoing circuits, we have 5 3 phase boards in the mains room, 2 3 phase panels fed from 2...
  11. J

    Split phase

    Could I have as much info regarding split phase installation complications to a new farm dairy unit I am going to be starting soon. what I've heard so far:- you should not switch neutrals on split phase circuits how is volt drop calculated on 480v supplies for sub mains can you have a 4 core...
  12. G

    Split Phase or 3 Phase

    Hi, i am rewiring a triple garage with 1st floor into a holiday cottage. The existing property already has 2x 8.5kw showers and cottage to also have 8.5kw min shower. Also oncludes 3 cookers approx 4kw so with lights n skts approx 40 KW MAX. (over estimating it ) As this exceeds the main single...
    • Gasmeter65
    • Thread
    • 3 phase approx phase split split phase supply
    • Replies: 20
    • Forum: UK Electrical Forum
  13. F

    Split phase PV install

    Hi, i have age been asked by a company that I sub-contract to to carry out a 30kw PV install on a farm which has a split phase supply using Fronius split phase inverters. I have not done a PV install on this system before so I'm looking for some advice on wiring and what switchgear will be...
    • fish052001
    • Thread
    • install phase split split phase
    • Replies: 2
    • Forum: UK Electrical Forum
  14. G

    Do split phase boards exist?

    Living out in the sticks. I have come across old split phase installations a few times and done a little maintenance on them. These installations usually consist of a old 3 rewireable db with only 2 phases used. Well for the first time I have been asked to add some circuits which requires a...
  15. N

    split phase supply

    Hi guys ive just joined this forum so im hopeing for some help please Ive just been asked to estimate a job basically to supply power to 15 new log cabins each requireing a 32a sp supply ,the existing park is supplied by a 3 wire split phase supply rated at 400A split also there is an existing...
    • nobelz66
    • Thread
    • electricians' talk phase split split phase supply
    • Replies: 11
    • Forum: UK Electrical Forum
  16. A

    Split Phase supplies

    Hi all Hopefully somebody will be able to help out a confused idiot! Visited a farm today which has recently had a supply upgrade from signle phase to split phase, thought I'd have a quick look at what had been done and noticed that they had bought the new supply cable in and added a new cut...
  17. O

    RCBO failure in an unbalanced split phase installation

    Hello all, this is my first post on any forum so please forgive any ineptitudes. I'm a relatively recently qualified electrician and have encountered a single phase /split phase 3 wire installation for the first time. This installation is fed through a three phase board containing mccb's...
  18. G

    Split Phase metering (one meter or two)

    Installing 10kw on a split phase / 2 phase / 480v / single phase, 3 wire (or whatever you want to call it) supply. system is made up of 2 x 5kw arrays with two single phase inverters. Do you meter each inverter separate or can you use one three phase meter and just not use one of the poles?
  19. P

    connection of pv system onto split phase supply.

    Hi, Has anyone had any experience connecting PV onto a split phase supply? Should I be balancing single phase inverters to supply each phase? 3 phase inverters are a no go? Any help would be greatly appreciated. Thanks Paul
  20. K

    Split Phase to three phase ?

    Hi Guys, Just after some thoughts on changing a domestic property to three phase. present supply is split phase with shared neutral, overhead, one phase dedicated to holiday cottage on 80 amp switch fuse submain to local c.u. The second phase is dedicated to the house consumer units of wich...
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