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  1. dlt27

    Motors and Star Delta Question

    Hi and thanks for any replies. I am predominantly an install electrician and don't have a lot of experience dealing with motors so any help would be greatly appreciated. I have been asked to connect a CNC machine, a dust extractor and a pump. The CNC is straight forward as it is just connected...
  2. dlt27

    Phase converter problems

    Thanks again lucien.
  3. dlt27

    Phase converter problems

    Just found out about non linear loads, however is there any way to test to see if it's non linear. Thank you
  4. dlt27

    Phase converter problems

    Thank you Lucien nunes much appreciated. Could I overload an mcb to check it trips ok on the 3 phase board otherwise there will be no protection to the individual machines/ cables. I will carry out all tests when installed and report back. Coould you explain what you mean by non linear (sorry...
  5. dlt27

    Phase converter problems

    Yes I have been an electrician for 15years, but still learning!!
  6. dlt27

    Phase converter problems

    It's a rotary phase converter. The spec is it's a 22kw and on transwave website. I just wanted to know if I was sizing the cables correctly as haven't done one before. Thanks
  7. dlt27

    Phase converter problems

    Thanks. Still not sure, are my calculations for cable sizes right. I have allowed unity for PF correction, should probably allow 0.85 being a motor....
  8. dlt27

    Phase converter problems

    Am I right in thinking for supply 22000/230 =95.65 A =25mm2 cable and outgoing 3 phase 22000/ 400 x 1.732= 31.69A = 6mm. Thanks
  9. dlt27

    Phase converter problems

    Hi, thanks in advance to anyone who can help. I have been asked to install a 22kw transwave phase converter. I have been told it needs a 120a single phase supply and it can run a 3 phase board supplying various 3 phase machines. I phoned and asked what the size of cable would be needed for the...
  10. dlt27

    Rotary Phase Converter

    There just having supply put in now, but on a farm and overheads so presuming TT. I was going to fit KMF/ 100mA type S then Henley block and one set of tails to single phase board and another set to converter, however need details of it first. I might do as you say though as not much...
  11. dlt27

    Rotary Phase Converter

    Thanks in advance for any info... I have been asked to quote to install electrics to a small workshop. At the moment there is a 100A single phase supply, however the client said he is having a rotary phase converter installed to supply a 3 phase board(is balancing of the loads across phases...
  12. dlt27

    3 Storey HMO fire alarm and emergency lighting.

    Any info would be greatly appreciated. I have just rewired a HMO and have now been asked to do fire alarm and emergency lighting. I have wired both when working for previous company, but always followed drawings and never had anything to do with design. I started it today and after a bit of...
  13. dlt27

    Grain loading machine wiring

    Thanks for advice. I would not even think about changing wiring I just thought it might be a contactor/ relay or the recycler not working and thought it might be a case of just changing like for like if somebody could of given me a cause why it wasn't working properley. However now you said it...
  14. 20170330_141004_HDR.jpg

    20170330_141004_HDR.jpg

    • dlt27
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  15. dlt27

    Grain loading machine wiring

    Its for loading grain into bags. E/s circuit? Thanks
  16. dlt27

    Grain loading machine wiring

    I'll have a look. Thanks
  17. dlt27

    Grain loading machine wiring

    Please could someone help! When in manual this grain loading machine works if start button is held in. Ie when start button is released hold in contact not keeping contactor held in. I am only your basic everyday spark so could do with some advice if possible. Also could someone explain what a...
  18. 20170330_224520_HDR.jpg

    20170330_224520_HDR.jpg

    • dlt27
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  19. 20170330_224454_HDR.jpg

    20170330_224454_HDR.jpg

    • dlt27
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  20. dlt27

    Underfloor heating help

    Ok. Thanks

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