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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: Rotary Phase Converter Designs and Plans

    Started by Milacron, 09-21-2006 12:46 AM
    10 Pages
    1 2 3 ... 10
    • Replies: 195
    • Views: 426,725
    02-03-2021, 02:21 PM Go to last post
  2. Sticky Thread Sticky: Motor drum switch wiring references Please look before asking

    Started by JST, 04-13-2020 10:13 PM
    drum, phase, single, step, switch
    • Replies: 1
    • Views: 2,647
    04-13-2020, 10:13 PM Go to last post
  3. Sticky Thread Sticky: Huanyang VFDs.... Banned from discussion

    Started by JST, 08-02-2017 04:05 PM
    banned, huanyang, sold, units, vfds
    • Replies: 0
    • Views: 15,874
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 9,236
    04-03-2017, 01:11 PM Go to last post
  4. Sticky Thread Sticky: Please keep threads to one subject as much as possible

    Started by JST, 01-10-2016 01:09 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: 13,273
    01-10-2016, 01:09 AM Go to last post
  5. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 10:31 AM
    • Replies: 0
    • Views: 21,376
    02-23-2013, 10:31 AM Go to last post
  1. Difficulty in understanding schematic symbol

    Started by alphonso, 04-22-2021 04:01 PM
    • Replies: 5
    • Views: 119
    04-22-2021, 11:32 PM Go to last post
  2. Phase rotation meter what's the purpose

    Started by bob, 04-09-2021 08:42 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 1,014
    04-22-2021, 08:45 PM Go to last post
    • Replies: 7
    • Views: 166
    04-22-2021, 08:34 PM Go to last post
  3. Hitachi SJ-P1 VFD: Overcurrent at low frequencies. Fine at higher

    Started by rbmgf7, 04-13-2021 07:25 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 726
    04-22-2021, 08:25 PM Go to last post
  4. Phase converter sizing

    Started by Frenchy, 04-22-2021 02:42 PM
    5hp, converter, motor, phase, wondering
    • Replies: 4
    • Views: 141
    04-22-2021, 04:36 PM Go to last post
    • Replies: 11
    • Views: 404
    04-22-2021, 04:15 AM Go to last post
    • Replies: 19
    • Views: 3,342
    04-21-2021, 08:52 PM Go to last post
  5. Senior Moment. Can't rem eber what this device is called.

    Started by alphonso, 04-16-2021 03:48 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 1,243
    04-21-2021, 08:56 AM Go to last post
  6. 480 volt transformer tripping breaker

    Started by M. Moore, 04-09-2021 11:14 AM
    2 Pages
    1 2
    amp, breaker, time, transformer, volt
    • Replies: 36
    • Views: 1,078
    04-20-2021, 11:37 PM Go to last post
  7. 3 phase wiring question

    Started by henrylr, 04-11-2021 10:17 PM
    3 Pages
    1 2 3
    cable, connected, end, phase, wires
    • Replies: 44
    • Views: 1,833
    04-20-2021, 10:42 PM Go to last post
    • Replies: 17
    • Views: 737
    04-20-2021, 07:02 AM Go to last post
  8. 50 HP rotary, "To pony or not to Pony ?" That........

    Started by madmachinst, 04-01-2021 07:10 PM
    2 Pages
    1 2
    • Replies: 30
    • Views: 1,342
    04-20-2021, 06:55 AM Go to last post
  9. Converter identification

    Started by Billyboyr66, 04-18-2021 06:21 PM
    can’t, converter, missing, unit, work
    • Replies: 3
    • Views: 272
    04-20-2021, 04:25 AM Go to last post
    • Replies: 5
    • Views: 412
    04-20-2021, 04:19 AM Go to last post
  10. burned up motor in older ENCO mill

    Started by Flanders, 04-12-2021 12:00 PM
    • Replies: 1
    • Views: 326
    04-18-2021, 11:23 PM Go to last post
    • Replies: 1
    • Views: 268
    04-18-2021, 01:34 AM Go to last post
    • Replies: 16
    • Views: 562
    04-16-2021, 08:46 PM Go to last post
  11. 480v lathe in 220v shop?

    Started by Derf, 04-14-2021 09:59 AM
    lathe, 3-phase, 480v, shop, 220v
    • Replies: 5
    • Views: 301
    04-15-2021, 12:20 PM Go to last post
    • Replies: 1
    • Views: 218
    04-15-2021, 11:42 AM Go to last post
  12. Honden / Crown Lathe Wiring

    Started by PancakeCritter, 04-13-2021 03:00 PM
    110v, crown, lathe, similar, wiring
    • Replies: 3
    • Views: 195
    04-14-2021, 10:46 AM Go to last post
  13. Phaseconverterusa.com

    Started by Dpelkowski, 10-22-2019 08:30 PM
    message, order, response, update, yesterday
    • Replies: 6
    • Views: 1,641
    04-13-2021, 02:12 AM Go to last post
  14. Fuji VFD shutting down-special installation

    Started by flylo31, 04-09-2021 08:36 AM
    circuit, great, problem, shuts, vfd
    • Replies: 12
    • Views: 362
    04-12-2021, 09:19 PM Go to last post
  15. Haas-Kamp on Dimension 452

    Started by erikg, 03-24-2014 09:12 AM
    • Replies: 6
    • Views: 3,526
    04-12-2021, 02:56 PM Go to last post
  16. RPC + 3-phase transformer

    Started by specfab, 04-11-2021 10:57 AM
    3-phase, converter, legs, power, tree
    • Replies: 2
    • Views: 196
    04-11-2021, 04:29 PM Go to last post
    • Replies: 32
    • Views: 1,513
    04-10-2021, 09:03 PM Go to last post
  17. Specific VFD questions

    Started by Sdhorton, 04-08-2021 10:31 AM
    needed, size, specific, system, vfd
    • Replies: 11
    • Views: 354
    04-10-2021, 02:28 PM Go to last post
    • Replies: 24
    • Views: 681
    04-07-2021, 10:40 PM Go to last post
    • Replies: 2
    • Views: 324
    04-07-2021, 08:45 AM Go to last post
  18. Elliot Progress 5E drill press conversion

    Started by Al King, 04-04-2021 07:25 PM
    drill, elliot, press, vfd
    • Replies: 2
    • Views: 265
    04-07-2021, 03:52 AM Go to last post
  19. wiring up a 3 phase 2 speed motor

    Started by mdr93906, 03-19-2021 12:56 PM
    • Replies: 14
    • Views: 821
    04-06-2021, 11:26 AM Go to last post
  20. Phase imbalance from power company

    Started by Strostkovy, 03-31-2021 06:31 PM
    3 Pages
    1 2 3
    current, imbalance, loaded, phase, power
    • Replies: 46
    • Views: 2,090
    04-04-2021, 10:25 AM Go to last post
    • Replies: 10
    • Views: 516
    04-04-2021, 09:26 AM Go to last post
  21. 3 phase soft start application

    Started by cg285, 02-13-2020 11:03 AM
    10 Pages
    1 2 3 ... 10
    • Replies: 186
    • Views: 10,985
    04-02-2021, 03:04 PM Go to last post
    • Replies: 18
    • Views: 803
    04-01-2021, 08:29 PM Go to last post
  22. 7.5 HP 3 phase rotary pass converter

    Started by Tony Quiring, 03-28-2021 06:27 PM
    rotary, phase, vfd, static, converter
    • Replies: 9
    • Views: 453
    04-01-2021, 04:39 PM Go to last post
    • Replies: 12
    • Views: 734
    04-01-2021, 04:30 PM Go to last post
  23. "E-Stop"

    Started by Cyclotronguy, 03-30-2021 09:54 AM
    contact, e-stop, pole, switch, switches
    • Replies: 11
    • Views: 785
    03-31-2021, 03:47 PM Go to last post
  24. Phase A Matic quit

    Started by Fred V, 03-11-2021 12:57 PM
    • Replies: 14
    • Views: 802
    03-30-2021, 10:38 AM Go to last post
  25. Transformer question

    Started by Peter from Holland, 03-28-2021 05:41 AM
    220volts, band, side, transformer, volts
    • Replies: 11
    • Views: 478
    03-30-2021, 10:24 AM Go to last post
  26. Harrison M300 Issues? Fuse Size?

    Started by spitfire_er, 03-23-2021 10:51 PM
    • Replies: 7
    • Views: 502
    03-29-2021, 08:52 PM Go to last post

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