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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. Question on VFD vs RPC

    Started by rbahr, 10-13-2019 01:00 AM
    5hp, motor, rpc, start, vfd
    • Replies: 12
    • Views: 1,238
    10-22-2019, 09:48 PM Go to last post
  2. VFD Bus capacitor reforming Docs

    Started by mike_kilroy, 01-09-2017 02:46 PM
    couple, docs, share, thought, vfds
    • Replies: 6
    • Views: 2,304
    10-21-2019, 11:43 AM Go to last post
  3. Help with Wiring Rotary Phase Converter

    Started by Cephalon, 10-11-2019 04:46 PM
    • Replies: 5
    • Views: 806
    10-20-2019, 01:20 AM Go to last post
  4. how can I tell the design voltage of an unlabeled 3 phase motor?

    Started by tomjelly, 09-20-2019 05:16 PM
    2 Pages
    1 2
    machinery, motor, phase, starter, transformer
    • Replies: 20
    • Views: 2,090
    10-20-2019, 01:02 AM Go to last post
  5. Isolation Transformer Wiring Help Needed

    Started by Machinery_E, 10-17-2019 11:49 PM
    • Replies: 3
    • Views: 531
    10-19-2019, 12:04 AM Go to last post
    • Replies: 25
    • Views: 2,627
    10-18-2019, 04:43 AM Go to last post
    • Replies: 17
    • Views: 1,234
    10-15-2019, 08:53 PM Go to last post
  6. VFD vs. Rotary Phase Converter

    Started by Chuck Pool, 01-15-2007 06:48 PM
    • Replies: 16
    • Views: 17,437
    10-14-2019, 02:16 AM Go to last post
  7. Need help finding a manual

    Started by redragon1981, 10-13-2019 08:21 PM
    greatly, lists, manual, parameters, reprogram
    • Replies: 0
    • Views: 314
    10-13-2019, 08:21 PM Go to last post
    • Replies: 8
    • Views: 741
    10-13-2019, 11:37 AM Go to last post
    • Replies: 16
    • Views: 1,280
    10-13-2019, 11:19 AM Go to last post
  8. 600V VFD for Bridgeport

    Started by Leadfootin, 10-12-2019 08:39 PM
    600v, bridgeport, prefer, unit, vfd
    • Replies: 0
    • Views: 391
    10-12-2019, 08:39 PM Go to last post
    • Replies: 38
    • Views: 5,838
    10-11-2019, 04:52 PM Go to last post
    • Replies: 18
    • Views: 1,435
    10-10-2019, 11:35 PM Go to last post
    • Replies: 13
    • Views: 1,271
    10-10-2019, 07:20 PM Go to last post
  9. Need 400V 3phase for CNC machine, best approach?

    Started by SeanDean, 10-10-2019 06:19 AM
    400v, machine, main, transformer, wye
    • Replies: 0
    • Views: 402
    10-10-2019, 06:19 AM Go to last post
    • Replies: 12
    • Views: 859
    10-09-2019, 09:38 PM Go to last post
    • Replies: 10
    • Views: 806
    10-07-2019, 06:13 PM Go to last post
  10. Rewiring a Hardinge TBF for VFD control

    Started by Dunedin, 09-30-2019 02:54 PM
    control, motor, speed, tbf, vfd
    • Replies: 10
    • Views: 845
    10-06-2019, 09:30 AM Go to last post
    • Replies: 2
    • Views: 570
    10-05-2019, 02:10 PM Go to last post
  11. Using original motor controls with a VFD

    Started by Warren, 11-10-2010 05:08 AM
    3 Pages
    1 2 3
    • Replies: 47
    • Views: 11,145
    10-05-2019, 01:10 PM Go to last post
    • Replies: 4
    • Views: 559
    10-05-2019, 09:48 AM Go to last post
  12. Breaker size for 10 hp RPC?

    Started by MushCreek, 09-29-2019 06:46 AM
    40a, breaker, motor, rpc, run
    • Replies: 7
    • Views: 893
    10-05-2019, 06:07 AM Go to last post
    • Replies: 1
    • Views: 392
    10-01-2019, 10:46 PM Go to last post
    • Replies: 10
    • Views: 879
    09-29-2019, 09:37 PM Go to last post
    • Replies: 5
    • Views: 683
    09-29-2019, 08:08 PM Go to last post
  13. Phase Perfect dpc-a10

    Started by Hardplates, 08-16-2019 01:55 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 109
    • Views: 6,901
    09-29-2019, 12:55 PM Go to last post
    • Replies: 4
    • Views: 591
    09-28-2019, 09:36 PM Go to last post
  14. VFD for 3 machines?

    Started by wyelk, 09-22-2019 10:44 PM
    completely, converter, machines, vfd, vfds
    • Replies: 10
    • Views: 1,015
    09-28-2019, 05:36 PM Go to last post
  15. Phase converter currents out of balance

    Started by Lpjack, 09-25-2019 11:30 PM
    converter, current, phase, shear, unloaded
    • Replies: 6
    • Views: 752
    09-27-2019, 09:11 PM Go to last post
  16. Potential relay noise in RPC build

    Started by geekamole, 09-23-2019 02:34 PM
    panel, potential, relay, start, switch
    • Replies: 11
    • Views: 782
    09-27-2019, 08:57 PM Go to last post
  17. Which VFD for my 10 hp air compressor?

    Started by TMVT, 09-27-2019 07:11 PM
    air, compressor, good, purchase, vfd
    • Replies: 0
    • Views: 388
    09-27-2019, 07:11 PM Go to last post
  18. Question Replacement VFD Spindle Drive for Three J425

    Started by UARCHAEA, 04-26-2015 10:53 PM
    • Replies: 9
    • Views: 3,524
    09-27-2019, 06:31 PM Go to last post
    • Replies: 5
    • Views: 679
    09-27-2019, 11:58 AM Go to last post
  19. Cool Haas-Kamp conversion for Miller CP-300, and CP-302 200-230-460

    Started by DaveKamp, 10-15-2018 12:29 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 71
    • Views: 7,983
    09-25-2019, 11:46 AM Go to last post
  20. Victor Lathe tie in point!?

    Started by silencerman, 09-20-2019 08:01 AM
    • Replies: 11
    • Views: 879
    09-25-2019, 04:24 AM Go to last post
  21. Help me pick a 1 to 3 phase 220v converter

    Started by aronht, 09-21-2019 11:18 AM
    converter, mill, phase, pick, run
    • Replies: 12
    • Views: 908
    09-24-2019, 03:34 PM Go to last post
  22. 5hp motor versus 10hp power output

    Started by viragocafe, 09-21-2019 01:05 PM
    2 Pages
    1 2
    air compressor pump, compressors, horsepower, motors, torque
    • Replies: 22
    • Views: 1,719
    09-24-2019, 01:12 PM Go to last post
  23. Risks of buying a used Phase Perfect?

    Started by Trboatworks, 09-23-2019 07:20 AM
    buying, listed, maker, ship, unit
    • Replies: 1
    • Views: 548
    09-24-2019, 12:16 PM Go to last post
  24. I need to upgrade my phase converter

    Started by TheoA, 09-22-2019 08:24 PM
    40hp, converter, motor, phase, widebelt
    • Replies: 1
    • Views: 427
    09-24-2019, 11:04 AM Go to last post

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