Colchester 50V transformer

  1. fizzy Forum Supporter

    Messages:
    4,944
    uk
    What is it for?
    Inside the main box. 440v in 50v out. colchester 50v.jpg

    There is already a transformer at the back for the lo volt light.
     
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  2. jordhandson Member

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    602
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    Looks like its the main switch gear from a Colchester lathe and does behind the front panel
     
  3. Brad93

    Brad93 M J B Engineering

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    LoVo lighting was 50VAC

    It is on mine anyway.
     
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  4. doubleboost

    doubleboost Member

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    same as my harrison 50 volt light
     
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  5. jordhandson Member

    Messages:
    602
    Location:
    Dorset
    It would have fitted onto the rear of this panel
    SEP_0133.JPG

    The silver part bottom left is the rotary switch the part boot right is the contractor the 4 pin plug type connector plugged into the late to send power around the system
    Probably some one has ripped it all out o maybe fit a single phase system the contractor maybe packed up or someones just broke up a lathe
     
  6. jordhandson Member

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    602
    Location:
    Dorset
    oopps miss read the post as been said 50v for lighting
     
  7. Brad93

    Brad93 M J B Engineering

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    Is it possible it was a 50V coolant pump.

    Or 50V for safety microswitches?
     
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  8. fizzy Forum Supporter

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    Yes that is what my Colchester Triumph is like.
    It looks like the 50V transformer not connected.
    Would it be for lighting or pump or something else?
    There is already a lo volt transformer at the back of the lathe - but perhaps that was added afterwards? Or do they have 2x 50v transformers?

    If I can eliminate this I can concentrate on getting the thing to work!
     
  9. Spark plug

    Spark plug Member

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    what’s the issues your haveing?
     
  10. jordhandson Member

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    602
    Location:
    Dorset
    Hi fizzy mines not connected either as I made other arrangements for lighting now I plug the light into a standard 3 pin plug I also had problems with the main contractor and there obsolete now so I removed it
    SEP_0126.JPG
    and fitted a modern contractor
    SEP_0174.JPG
    make it a lot more future proof.
     
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  11. ukracer Forum Supporter

    I have purchased new 24 volt transformers to get rid of the 440 volt switch gear.
     
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  12. fizzy Forum Supporter

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    I would like to try to keep it original as there is so little wear. Do a full restoration perhaps.
    Excuse my ignorance but could the contactor need a low voltage supply to trigger it?
    Or is the transformer just to power an ancillary?
     
  13. Turbo Member

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    3,383
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    It is possible that the control voltage is 50v but 24v is the norm.
     
  14. daleyd

    daleyd Member

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    50v was used for control voltage on older cranes, when I worked at Pilkington we had a few gantry cranes that used 50v contractors.
     
  15. carbon

    carbon Member

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    From the wiring diagram the transformer is there just for the light, everything else is mains voltage switching

    Wiring.png
     
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  16. brightspark

    brightspark Member

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    contractors :whistle:so they didn't work direct for the company :laughing:contactors
     
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  17. jordhandson Member

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    602
    Location:
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    Ha ha I've spelt it the same :laughing:
     
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  18. daleyd

    daleyd Member

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    Damn autocorrect, good job the new forum English teacher :whistle: is around to correct it.
     
  19. brightspark

    brightspark Member

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    not me :)I make mistakes no doubt about it .if anyone corrects me and has a dig its all in fun I can take it :laughing:
     
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  20. fizzy Forum Supporter

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    To get the lathe to run I have to hold the start lever in a certain position. If I alter the linkage to get it to latch the lathe won't run unless I physically move the snap contacts in the switch back down.
     
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