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Forum: Transformers, Phase Converters and VFD

Machine voltage issues, three phase via single phase power, and variable frequency drives discussion

  1. In reguards to your reply peter.. Help Please.

    Started by treeman, 11-08-2007 09:51 PM
    • Replies: 4
    • Views: 216
    treeman
    11-10-2007, 09:42 AM Go to last post

  2. Anyone want to sell me their old drum switch?

    Started by Artfrombama, 11-07-2007 08:33 PM
    • Replies: 3
    • Views: 452
    JoeFin
    11-09-2007, 07:52 PM Go to last post

  3. RPC's and short duration power loss

    Started by crrmeyer, 11-07-2007 03:01 AM
    • Replies: 7
    • Views: 317
    peterh5322
    11-09-2007, 06:26 PM Go to last post

  4. Generated Leg

    Started by slimfab, 11-09-2007 03:28 PM
    • Replies: 1
    • Views: 333
    peterh5322
    11-09-2007, 05:31 PM Go to last post

  5. 380 to 460 vfd

    Started by JustGeorge, 11-08-2007 03:05 AM
    • Replies: 2
    • Views: 323
    J Lauffer
    11-08-2007, 09:08 AM Go to last post

  6. Mori Manual lathe

    Started by scottxmf, 11-04-2007 11:10 PM
    • Replies: 8
    • Views: 307
    scottxmf
    11-08-2007, 12:50 AM Go to last post

  7. step up step down transformers

    Started by treeman, 11-07-2007 07:48 PM
    • Replies: 5
    • Views: 333
    treeman
    11-07-2007, 10:08 PM Go to last post

  8. Quick Question: Load terminals on unmarked breaker?

    Started by Radius, 11-05-2007 11:11 PM
    • Replies: 4
    • Views: 421
    peterh5322
    11-07-2007, 01:36 PM Go to last post

  9. Charging caps in inactive VFDs

    Started by SBAER, 11-06-2007 09:40 AM
    • Replies: 2
    • Views: 339
    SBAER
    11-06-2007, 11:31 PM Go to last post

  12. VFD for new lathe

    Started by Anvils, 11-05-2007 11:01 PM
    • Replies: 7
    • Views: 339
    Jraef
    11-06-2007, 10:57 PM Go to last post

  13. functionality considerations VFD vs RPC

    Started by echo, 11-02-2007 02:19 PM
    • Replies: 14
    • Views: 489
    toolnut
    11-05-2007, 10:22 AM Go to last post

  14. VFD Smoked (Hitachi HFC-VWE)

    Started by portlandRon, 11-03-2007 06:09 PM
    • Replies: 8
    • Views: 769
    portlandRon
    11-05-2007, 01:35 AM Go to last post

  15. Re: European RPC Questions

    Started by T_Rex, 11-01-2007 10:44 AM
    • Replies: 4
    • Views: 245
    T_Rex
    11-04-2007, 02:57 AM Go to last post

  16. RPC balancing ?

    Started by pmcbs, 10-24-2007 09:00 PM
    • Replies: 12
    • Views: 323
    gpkull
    11-02-2007, 09:18 PM Go to last post

  17. acceptable voltage leg to leg?

    Started by Captdave, 10-11-2007 08:35 PM
    • Replies: 4
    • Views: 353
    peterh5322
    11-02-2007, 03:20 PM Go to last post

  18. Heynau VFD

    Started by macona, 06-26-2007 07:38 PM
    • Replies: 4
    • Views: 522
    Chuck Kantmann
    11-02-2007, 12:30 PM Go to last post

  19. VFD questions

    Started by J. DeBrular, 10-26-2007 11:20 AM
    • Replies: 17
    • Views: 548
    J. DeBrular
    11-02-2007, 11:50 AM Go to last post

  21. Inverter or RPC.

    Started by JB Bergman, 11-01-2007 08:45 PM
    • Replies: 5
    • Views: 240
    toolnut
    11-02-2007, 11:07 AM Go to last post

  22. L1 L2 L3 N & PE..... and what is the difference between Ground and Neutral?

    Started by llf264, 10-20-2007 05:57 PM
    2 Pages •
    1 2
    • Replies: 38
    • Views: 7,779
    JST
    10-31-2007, 09:09 PM Go to last post

  23. 3 phase motor question

    Started by B Sutherland, 10-31-2007 01:22 PM
    • Replies: 2
    • Views: 300
    frenchelectrican
    10-31-2007, 09:03 PM Go to last post

  24. Converting 3 phase 220V motor into single phase 110V

    Started by Tramvay, 10-18-2007 10:14 AM
    • Replies: 15
    • Views: 2,245
    Stuart Caruk
    10-31-2007, 06:29 PM Go to last post

  25. variable speed motor

    Started by todd goff, 10-30-2007 09:44 PM
    • Replies: 1
    • Views: 275
    Dave Boley
    10-31-2007, 11:23 AM Go to last post

  26. rpc help

    Started by jim fuchs, 10-30-2007 04:10 PM
    • Replies: 3
    • Views: 301
    Robert Campbell Jr.
    10-31-2007, 09:54 AM Go to last post

  27. rpc wiring question

    Started by gregsmy, 10-22-2007 06:33 PM
    • Replies: 9
    • Views: 329
    gpkull
    10-30-2007, 09:14 PM Go to last post

  28. VFD on a hoist yes or no ?

    Started by wippin' boy, 10-26-2007 09:01 AM
    • Replies: 2
    • Views: 298
    wippin' boy
    10-26-2007, 11:14 AM Go to last post

  30. How NOT to test a VFD

    Started by Steve Marquess, 10-25-2007 09:19 AM
    • Replies: 11
    • Views: 418
    Jraef
    10-26-2007, 10:36 AM Go to last post

  31. Soft Start on motor

    Started by qualitymachinetools, 09-18-2007 08:07 PM
    2 Pages •
    1 2
    • Replies: 20
    • Views: 909
    qualitymachinetools
    10-26-2007, 12:35 AM Go to last post

  32. repost from general -- My RPC balancing ?

    Started by pmcbs, 10-25-2007 06:44 PM
    • Replies: 1
    • Views: 221
    gpkull
    10-25-2007, 08:10 PM Go to last post

  33. help with rpc and motor prob .

    Started by jim fuchs, 10-22-2007 03:32 PM
    • Replies: 3
    • Views: 210
    gpkull
    10-25-2007, 07:16 PM Go to last post

  34. My sad rpc story

    Started by vises, 09-17-2007 04:43 PM
    2 Pages •
    1 2
    • Replies: 26
    • Views: 1,195
    ToughTool
    10-25-2007, 07:15 PM Go to last post

  35. SALVAGED PARTS

    Started by Dan E, 10-16-2007 03:58 PM
    • Replies: 11
    • Views: 360
    Dan E
    10-24-2007, 09:02 AM Go to last post

  36. What is the X0 tap at the top of a transformer?

    Started by llf264, 10-20-2007 05:14 PM
    • Replies: 3
    • Views: 445
    llf264
    10-22-2007, 08:54 PM Go to last post

  37. OT - Sort of, PID controller for pc oven

    Started by rhoward, 10-15-2007 11:02 PM
    • Replies: 7
    • Views: 619
    BCarter
    10-22-2007, 02:46 PM Go to last post

  38. Transformer inrush - soft start?

    Started by Harri, 10-19-2007 03:11 PM
    • Replies: 3
    • Views: 788
    Jraef
    10-22-2007, 02:37 AM Go to last post

  39. power requirements

    Started by jimreilley, 10-19-2007 12:05 PM
    • Replies: 5
    • Views: 288
    jimreilley
    10-21-2007, 01:17 PM Go to last post

  40. Buying a 208/480 transformer question

    Started by BruceC, 10-17-2007 04:08 PM
    • Replies: 11
    • Views: 1,328
    Al Barbour
    10-19-2007, 11:21 PM Go to last post

  41. Another RPC question

    Started by gregsmy, 10-16-2007 05:02 PM
    2 Pages •
    1 2
    • Replies: 20
    • Views: 550
    2Slow
    10-18-2007, 10:40 AM Go to last post

  42. VFD trouble shooting

    Started by thomas wells, 10-14-2007 09:30 PM
    • Replies: 10
    • Views: 363
    Pierce Butler
    10-17-2007, 09:48 PM Go to last post

  43. motor problem

    Started by todd goff, 10-15-2007 09:55 PM
    • Replies: 3
    • Views: 210
    todd goff
    10-17-2007, 09:26 PM Go to last post

  44. Backwards L6-30R Ground Hole???

    Started by Benesesso, 10-16-2007 11:57 PM
    • Replies: 2
    • Views: 267
    Benesesso
    10-17-2007, 11:50 AM Go to last post

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