single phase | Page 4

single phase

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  1. S

    UK Large single phase motors in the UK

    Why is it that I could easily find a 10HP 220V single-phase motor for sale in the USA but in the UK I nobody has anything larger than 5HP?
  2. H

    208V Single phase wiring from 3 phase 4 wire disconnect

    I work in a location that was once a Machine shop showroom. We have 208/230/480 etc in the building. I need to install a temperature chamber that requires single phase only 208V or 230V supply. I have a 100 amp rated disconnect literally in the exact location this needs to go. I've read for...
  3. B

    220 Volt single phase Contactor relay controlled by 2 switches

    Hi, I am looking for help wiring a 220 Volt single phase Contactor relay that has a single A1 Coil terminal to be used with 2 float switches to control a pump. I know how to connect a single switch to the relay but unsure how to add the second switch. Each switch can be Normally open or...
  4. Dilwyn

    Can. I run 3 phase motor off single phase 4 wiresABC

    Can I run a 3 phase motor. Off single. Phase 3 Black wires ABC 1 earth wire. Any info. Would be great thank you.
  5. Joe9009

    Where to connect power cord to induction single phase motor 240v

    (I would want it to run clockwise) Any guidance would be much appreciated.
  6. D

    3Phase wiring into single phase supply

    I'm looking to install a traditional coffee machine which has total power 3300w and the wiring supplied with it is brown L1, black L2, grey L3 & Neutal with earth. How would this need to wired to operate on a single phase 16Amp supply?
  7. W

    Single phase motor reverse rotation

    Brook Crompton Parkinson single phase PD90S (from the 70s) 240v 11A 2850rpm 50hz I'm using it for polishing metal with a tapered spindle adapter and buffing wheels. I've got 2 questions. 1. (This photo was taken with all the wiring in its original position.) I've managed to...
  8. D

    3 phase to single phase with no VSD

    So basically I’ve got a 3 phase motor that I’d like to use to hook up to my cable stripping machine. The motor was salvaged from an old site and I know it works. I know the easiest way to connect it up to a single phase supply would be to use a VSD but those are expensive. I was wondering if...
  9. Stevetheaviato

    UK asked to do work alone that you dont feel competent enough for ? worried about losing my job

    So recently i have been given a lot of changes to the work im used to, quick example = im ok with single phase boards but i am not competent or confident enough in three phase. My boss is a very angry guy..... should i just go for it or should i refuse until i have training ? cheers
  10. M

    Question Regarding a RCD on 3 Phase, with a single phase sub-circuit

    I am installing a micro-brewery in our barn in France; as you can guess that, means that I am a brewer, not an electrician :-) I did 'fess up to being a DIYer when signing on. The brewhouse runs on 3-phase, both for the 12kw heating elements and for the pumps. All use a delta configuration i.e...
  11. D

    Single phase 240v motor starter & overload with on/off switch wiring?

    Hi, Hoping you all can help me wire up my single phase 240v induction motor. Can someone please explain or even better sketch out where the wires need to go, I have a fair idea already just want some good advice before I continue. Switch is CK-5 10A 250v - SWITCH Thanks in advance!
  12. S

    Help Required please

    Hi Guys I recently came across two single phase supplies down the same four core cable, supplied by two separate breakers is there a reg to back this up?
  13. D

    Single phase board use with 2 phases

    Hello guys new in this forum. In my 19 years as an electrician I've never seen this. Looking for any thoughts on this. Been asked to install a few new circuits In a domestic garage. There is a granny annex on top of this garage also. Supply is 3 phase in to a 3 phase isolator. From there...
  14. U

    What building can I put 3-333kva, single phase distribution transformer?

    What building can I put 3-333kva, single phase distribution transformer?
  15. J

    Single Phase or 3 Phase

    I´m about to renovate a market stand into a snack bar and need to know if I´ll need Single-phase or 3 phase power supply. The stand is very small 11m2 and will have an electric 4 hob, extractor fan, a couple of small fridges, 1 small freezer, coffee machine, microwave and toaster plus lights...
  16. M

    Single phase induction motor schematic

    Hello, I've found an old motor originally designed for operating jealousies. Could you help me read and better understand the following schematic? As far as I understand, it is a single phase induction motor, there is 47 uF capacitor connected to it in order to start. There are 3 contacts...
  17. T

    Schneider 63a single phase switch fuse

    Has anyone used a Scheider 63a single phase switch fuse before? Im just wondering whether they need crimped connections or whether its a terminal?
  18. robertl

    Single phase power all thats avaiable for new workshop build

    Hello Everyone, new to the forum and looking for some advice on a new workshop, i'll explain. I am planning on building a metal / woodworking workshop (mainly aluminium and stainless steel) for boat work, refurbishment and boat building. I am a marine engineer to trade and i am planning on...
  19. J

    9kW 3ph Immersion Type Heater run in Single Phase

    Hi, I received a 9kW 3ph heater from a friend from india, i was hoping to use this in steam production for a distillation project i am working at. I rewired it and made the 3 heating element in parallel connection. Now my problem is the 6 gauge wires i am using are always heating up, also some...
  20. G

    Single phase circuit on 3 phase system calc

    Hi, I have a query about calculating current in a 3 phase system. So a 22kw load in 3 phase assuming a power factor of 0.8 would be 22000/(1.732x400x0.8) = 39.69A and say a 7.2kw load on a single phase supply would be 31.30A if you simply use ohms law. But what happens when you calculate the...

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