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phase

  1. wsoppitt

    remote 3 phase charger install

    hi guys / girls , any advice would be appreciated, So the situation is a domestic property has a 3 phase supply , from the service head we have 3 phase supply to henley blocks , from here there is a 3 phase supply to remote outbuilding and a single phase supply to the house consumer unit ,the...
  2. G

    TIS700 PAT Tester - 3 phase testing issue

    Hi all, We have a limited in house PAT testing requirement and were advised that the TIS700 fitted our needs. The unit works fine for 110V and 230V extension lead testing, but we're having issues testing 4 and 5 pin 415V extensions. We are using adaptors that came with our (very) old PAT...
  3. G

    single phase compressor motor

    Hi, I am looking for a connection diagram or sugestions for a 2.2Kw single phase motor to drive a compressor. The spec plate shows that it can be run at 220-240 v / 460-480v 50Hz. (unusual for 50Hz) At 220-240 volts FLc is 16A plus startup inrush. so I should like to run it at the higher voltage...
  4. Y

    Singel Phase Wiring for TeSys LE, enclosed DOL starter, 12...16 A, 240 V AC coil

    Hi, Trying to wire this 3phase switch as single for a table saw, told I could do this from guy at Haymans, even told 2nd time which wires to connect, didnt work, other tradie at work couldnt work it out either. have L1 and L2 and N and T1 and T2 on bottom from diagram any help please?
  5. E

    Hi Zs on one phase only

    Anyone come across this before? I was asked to do a Zs on a 3ph surge device; L1 was around 6 ohm, L2 & L3 around 0.11. Wired in singles from a Ryefeid and one earth conductor so cannot think why this might be low on one phase only.One thing I did see was L1 fuse at Ryefeid was doubled up with...
  6. K

    3 Phase connections

    Good day to you. I need electrical drawings urgently and hopefully there is someone that can assist me. They are all for electrical trade test. Taking into consideration it's three phase. 1. A 2 Speed starter with selector switch and motor with control circuit 2. A manual 2 speed starter and...
  7. J

    3 phase problem after spark did 5 year safety inspection

    Hi lads 5 year safety inspection the spark put the tails back and later line 2 of the 3 phase blew blowing the box off the wall and taking out the main fuse on the same line into the building can you all just say quickly what you think the spark may have done wrong ? Cheers
  8. J

    3 phase meter problem

    Hi there, I built a house with ground source heating 5 years ago and it's a fairly large house so I have 3 phase supply 80 amps per phase. I had a regular meter it was a Elster A1140. I read this every month on the 1st and logged the readings so I have a good idea of my usage patterns. Ground...
  9. A

    1 phase 2 pole 400v pump wiring

    Hello. How i should connect this 1 phase 2 pole 400v cooling pump? If i apply 1phase 230v and neutral it Will only growl and "spin" very very slowly. Thank you for help.
  10. X

    3 Phase Vacuum On Single Phase Supply

    Absolutely losing my brain here guys What I would like to be able to do is power our 3 phase motor on a single phase supply. Thought I had it all figured out, motor is dual voltage, on 230v its pulls 30amps 8.6kW rating. Nice cheap option was a dps (compared to getting 3 phase installed or a...
  11. T

    Wiring 3 Phase/Single Phase Hob

    Hi, searched the forum but cant locate anything similar so apologies if ive missed something. Ive got a new hob to install in the kitchen (Cookology CIH602). Ive got a dual cooker connection plate with the oven already connected and intend to connect this. Looking at the manual, it can be...
  12. Aegir01

    Hooking up a bandsaw from single phase

    Hello all, I signed up here for a little help. I bought a 3 phase bandsaw and went down the rabbit hole of VFD’s etc. ‘The motor is 3 phase 400v and I have 1 phase 240v (Australia) . So I bought a VFD that has an input of 240v single and an output 400v three. It’s currently in the post. I...
  13. S

    1ph to 3 phase inverter

    I have been asked if I can wire a motor for a car lifter in a domestic garage, however the motor is 3 phase and only single phase is available in the property. Is it possible to use a single phase to 3 phase inverter to power this motor? I will attach photos of the motor and its output.
  14. K

    How do you calculate the tollerances from a 3 phase winding measurement

    Assuming that you measure the windings for a power transformer, for example: A-B: 2,258 ohms B-C: 2,262 ohms A-C: 2,250 ohms, how do you calculate the tolerances for these? What formula do you use? You consider as reference the highest or the lowest value from every 2 readings? I just wanna...
  15. 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...
  16. M

    American Phase Colours

    Hi, Looking for advise on industrial phase colours.
  17. 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...
  18. littlespark

    Phase loading in a chippy

    What can be worse than electrical installations on a farm, or in a pub?...... Chippys! Got a phone call from my local.... Lights and kitchen equipment not working... needs checked by a sparky before Scottish Power would attend. She'd blown a main fuse! So ive been tasked with working out the...
  19. 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...
  20. 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...
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