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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. Sticky Thread Sticky: Please keep threads to one subject as much as possible

    Started by JST, 01-10-2016 12:09 AM
    archives, attach, cases, cheap, close, discussion, easy, ends, fast, force, general, instance, means, original, part, pick, plan, post, question, searchable, start, subject, temporarily, thread, vfds
    • Replies: 0
    • Views: 3,023
    01-10-2016, 12:09 AM Go to last post
  2. Sticky Thread Sticky: Rotary Phase Converter Designs and Plans

    Started by Milacron, 09-21-2006 12:46 AM
    9 Pages
    1 2 3 ... 9
    • Replies: 163
    • Views: 277,178
    12-01-2015, 05:32 PM Go to last post
  3. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 09:31 AM
    • Replies: 0
    • Views: 10,544
    02-23-2013, 09:31 AM Go to last post
  1. Is my VFD undersized?

    Started by leeko, 12-02-2016 09:25 PM
    motor, vfd, rapid, traverse, rpms
    • Replies: 1
    • Views: 24
    12-02-2016, 10:35 PM Go to last post
  2. Help with Wye Delta Starter

    Started by ewlsey, 10-28-2016 09:39 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 66
    • Views: 2,390
    12-02-2016, 04:38 PM Go to last post
  3. Reversing Step down transformers vs recent NEC

    Started by JST, 12-01-2016 06:21 PM
    nec, secondary, suitable, voltage, withstand
    • Replies: 9
    • Views: 289
    12-02-2016, 02:45 PM Go to last post
    • Replies: 7
    • Views: 284
    12-02-2016, 12:04 PM Go to last post
  4. VFD recommendation please

    Started by TFPace, 12-01-2016 09:30 AM
    forget, motor, needing, set, slow
    • Replies: 8
    • Views: 255
    12-02-2016, 06:38 AM Go to last post
  5. 3 phhse converter

    Started by milomilo, 11-30-2016 01:21 PM
    amps, converter, run, shop, welder
    • Replies: 6
    • Views: 247
    11-30-2016, 03:34 PM Go to last post
    • Replies: 1
    • Views: 257
    11-30-2016, 02:37 PM Go to last post
    • Replies: 7
    • Views: 267
    11-30-2016, 02:25 PM Go to last post
  6. Rotary phase converter in Australia

    Started by Bryce.R, 08-18-2015 05:00 AM
    • Replies: 17
    • Views: 1,770
    11-30-2016, 09:43 AM Go to last post
    • Replies: 0
    • Views: 123
    11-29-2016, 09:17 PM Go to last post
  7. Big news for the shop 3 phase power install

    Started by roll-a-leblond, 11-04-2016 01:04 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 1,814
    11-29-2016, 07:44 AM Go to last post
  8. Wiring question for Phase Perfect

    Started by JST, 11-20-2016 08:32 PM
    240v, connect, lines, perfect, phase
    • Replies: 7
    • Views: 442
    11-28-2016, 06:39 PM Go to last post
  9. Picking a motor starter help

    Started by Phase, 11-18-2016 11:48 AM
    • Replies: 9
    • Views: 678
    11-28-2016, 12:16 AM Go to last post
  10. Installing a Tachometer on a Lathe

    Started by Can'tWeld, 11-26-2016 06:46 AM
    • Replies: 4
    • Views: 382
    11-27-2016, 01:07 AM Go to last post
  11. Question About Phase Converter Voltages

    Started by BDMcGrew, 11-23-2016 06:46 PM
    converter, ground, i’m, phase, reading
    • Replies: 8
    • Views: 399
    11-25-2016, 04:30 PM Go to last post
    • Replies: 15
    • Views: 849
    11-25-2016, 10:56 AM Go to last post
  12. 3 or 4 wire on 220v outlet install

    Started by Aykfc, 11-23-2016 02:17 PM
    220v, hot, phase-a-matic, run, wire
    • Replies: 3
    • Views: 263
    11-23-2016, 04:32 PM Go to last post
    • Replies: 16
    • Views: 656
    11-23-2016, 04:01 PM Go to last post
  13. RPC vs. VFD

    Started by pkitson, 11-18-2016 10:13 AM
    converter, idea, phase, regular, vfd
    • Replies: 4
    • Views: 398
    11-22-2016, 04:01 PM Go to last post
  14. Mitsubishi D700 VFD RS485 programming problem

    Started by billmac, 11-11-2016 12:32 PM
    code, mitsubishi, rs485, string, vfd
    • Replies: 6
    • Views: 274
    11-22-2016, 05:35 AM Go to last post
  15. Big Boy RPC 30HP build

    Started by davidwenrich, 11-20-2016 06:52 PM
    30hp, approximate, building, rpc, starting
    • Replies: 8
    • Views: 415
    11-21-2016, 12:21 AM Go to last post
    • Replies: 3
    • Views: 424
    11-20-2016, 09:29 PM Go to last post
    • Replies: 6
    • Views: 489
    11-20-2016, 08:30 AM Go to last post
  16. Starting torque of VFD's at low speeds

    Started by rbent, 11-14-2016 12:42 PM
    load, low, starting, torque, vector
    • Replies: 5
    • Views: 369
    11-17-2016, 03:20 PM Go to last post
    • Replies: 11
    • Views: 470
    11-17-2016, 02:48 PM Go to last post
    • Replies: 46
    • Views: 2,081
    11-15-2016, 01:30 PM Go to last post
    • Replies: 16
    • Views: 462
    11-15-2016, 01:07 PM Go to last post
  17. VFD help to run Baldor 3hp 3 PH grinder

    Started by GunMonkey, 11-11-2016 11:31 PM
    3hp, baldor, phase, run, vfd
    • Replies: 6
    • Views: 386
    11-12-2016, 11:06 PM Go to last post
    • Replies: 14
    • Views: 466
    11-12-2016, 05:39 PM Go to last post
    • Replies: 0
    • Views: 143
    11-12-2016, 01:05 PM Go to last post
  18. Mislabed motor lead?

    Started by chevydyl, 11-03-2016 05:34 PM
    • Replies: 12
    • Views: 597
    11-11-2016, 06:26 PM Go to last post
  19. 220 to 440 Transformer

    Started by norson, 11-02-2016 01:30 AM
    • Replies: 7
    • Views: 810
    11-11-2016, 03:12 PM Go to last post
  20. VFD as single to 3 phase converter

    Started by Kbracing96, 11-08-2016 09:48 AM
    lathe, motor, phase, single, vfd
    • Replies: 12
    • Views: 701
    11-10-2016, 04:23 AM Go to last post
  21. Inadequate Incoming Service Conductors

    Started by Shooter7, 11-07-2016 12:40 AM
    2 Pages
    1 2
    • Replies: 30
    • Views: 1,210
    11-09-2016, 10:47 PM Go to last post
  22. Question Servo motor vibration class

    Started by jCandlish, 11-08-2016 11:13 AM
    class, classes, iso, numeric, vibration
    • Replies: 0
    • Views: 156
    11-08-2016, 11:13 AM Go to last post
  23. Vfd control wiring

    Started by Cadillac, 09-09-2016 03:38 PM
    control, light, switches, vfd, wiring
    • Replies: 17
    • Views: 1,164
    11-07-2016, 08:33 PM Go to last post
  24. 240 v to 575 v 3 phase converter project

    Started by jappietoutou, 01-12-2016 07:50 PM
    3 Pages
    1 2 3
    • Replies: 40
    • Views: 5,871
    11-06-2016, 05:31 PM Go to last post
  25. Which VFD for my old lathe??

    Started by Steeler, 10-30-2016 11:34 PM
    • Replies: 8
    • Views: 674
    11-02-2016, 11:57 PM Go to last post
  26. Teco N3-203-C-U Drive Issues

    Started by Brianrich877, 10-19-2016 02:14 PM
    3hp, lathe, motor, power, teco
    • Replies: 10
    • Views: 549
    11-02-2016, 10:29 PM Go to last post
  27. Solar Storm - Electrical Grid

    Started by Ox, 10-28-2016 07:53 PM
    2 Pages
    1 2
    apparently, burn, event, gen, hours
    • Replies: 23
    • Views: 1,113
    11-02-2016, 11:54 AM Go to last post

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