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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
    9 Pages
    1 2 3 ... 9
    • Replies: 170
    • Views: 321,575
    08-29-2017, 02:47 PM Go to last post
  2. 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: 2,222
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 2,444
    04-03-2017, 01:11 PM Go to last post
  3. 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: 6,336
    01-10-2016, 12:09 AM Go to last post
  4. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 09:31 AM
    • Replies: 0
    • Views: 13,518
    02-23-2013, 09:31 AM Go to last post
  1. Sizing Overload Heaters?

    Started by RonRock, 01-18-2018 01:43 PM
    • Replies: 9
    • Views: 304
    01-20-2018, 02:00 PM Go to last post
  2. Vexta Stepper Help

    Started by bob, 01-20-2018 09:34 AM
    • Replies: 0
    • Views: 59
    01-20-2018, 09:34 AM Go to last post
    • Replies: 19
    • Views: 430
    01-19-2018, 01:12 PM Go to last post
    • Replies: 0
    • Views: 100
    01-19-2018, 01:15 AM Go to last post
    • Replies: 24
    • Views: 671
    01-18-2018, 10:29 AM Go to last post
  3. RPC first build questions

    Started by stelradCoal, 10-05-2012 06:16 AM
    • Replies: 13
    • Views: 2,406
    01-17-2018, 03:18 PM Go to last post
  4. Energy use of Phase Perfect versus Rotary Phase Converter

    Started by Johnny SolidWorks, 05-08-2017 08:59 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 73
    • Views: 5,891
    01-16-2018, 09:52 PM Go to last post
  5. Probels with my RPC build

    Started by Das_Wookie, 01-09-2018 11:10 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 713
    01-16-2018, 10:33 AM Go to last post
  6. 575 volt problem

    Started by blgmachine, 01-16-2018 03:14 AM
    choice.and, gus, problem, run, volt
    • Replies: 2
    • Views: 185
    01-16-2018, 10:18 AM Go to last post
  7. Wiring 3ph motor question

    Started by FlyinChip, 01-15-2018 07:48 PM
    • Replies: 1
    • Views: 187
    01-15-2018, 10:14 PM Go to last post
  8. Two small RPC's or one bigger one ?

    Started by clampman, 12-24-2017 09:38 PM
    1/2, air, compressor, motor, run
    • Replies: 11
    • Views: 941
    01-15-2018, 08:00 PM Go to last post
    • Replies: 5
    • Views: 271
    01-15-2018, 10:57 AM Go to last post
  9. 2 speed motor internal connections?

    Started by Grigg, 01-05-2018 08:39 AM
    • Replies: 7
    • Views: 357
    01-14-2018, 03:48 PM Go to last post
  10. Selecting 1hp VFD for Lathe, Lil' Help?

    Started by tobnpr, 01-13-2018 06:02 PM
    120v, 1hp, application, lathe, motor
    • Replies: 2
    • Views: 228
    01-14-2018, 12:32 AM Go to last post
    • Replies: 12
    • Views: 452
    01-13-2018, 05:59 PM Go to last post
  11. Band saw tripping overload

    Started by jaddy, 01-07-2018 02:12 PM
    2 Pages
    1 2
    • Replies: 32
    • Views: 1,010
    01-12-2018, 02:45 PM Go to last post
  12. Crane Braking Electrical Problem

    Started by Richard King, 01-12-2018 05:34 AM
    braking, post, problem, resistor, resistors
    • Replies: 0
    • Views: 143
    01-12-2018, 05:34 AM Go to last post
    • Replies: 0
    • Views: 117
    01-11-2018, 11:50 AM Go to last post
    • Replies: 6
    • Views: 279
    01-11-2018, 11:18 AM Go to last post
    • Replies: 14
    • Views: 6,893
    01-09-2018, 05:06 PM Go to last post
    • Replies: 13
    • Views: 373
    01-08-2018, 10:19 PM Go to last post
  13. Problems with setting up WJ200 on my Toolmaster 1D

    Started by toolmaster1d, 12-10-2017 08:54 AM
    2 Pages
    1 2
    connected, leads, motor, power, vfd
    • Replies: 23
    • Views: 920
    01-07-2018, 04:23 PM Go to last post
  14. Mitsubishi E520 3.7k potentiometer connection?

    Started by jordan6679, 01-05-2018 09:10 PM
    spindle, inverter, control, panel, speed
    • Replies: 2
    • Views: 216
    01-06-2018, 10:19 PM Go to last post
  15. Driving VFD with manufactured 3 phase

    Started by TDegenhart, 12-21-2017 03:20 PM
    disadvantage, drive, frequency, manufactured, vfd
    • Replies: 12
    • Views: 859
    01-06-2018, 08:07 PM Go to last post
  16. Help with motor control electrical problem

    Started by robert123, 01-05-2018 08:56 PM
    • Replies: 10
    • Views: 434
    01-06-2018, 07:21 PM Go to last post
    • Replies: 8
    • Views: 402
    01-06-2018, 11:36 AM Go to last post
    • Replies: 12
    • Views: 471
    01-05-2018, 06:58 PM Go to last post
  17. High startup amps normal

    Started by jaddy, 12-23-2017 01:03 AM
    • Replies: 14
    • Views: 813
    01-04-2018, 10:59 PM Go to last post
  18. Are all 338H transformers 230 to 115v?

    Started by tomjelly, 01-03-2018 12:25 PM
    338h, attaches, low, transformer, voltage
    • Replies: 5
    • Views: 264
    01-04-2018, 08:26 PM Go to last post
  19. RPC Balance Caps for two speed motor?

    Started by gzig5, 01-04-2018 09:26 AM
    balance, balanced, caps, rpc, start
    • Replies: 7
    • Views: 272
    01-04-2018, 08:12 PM Go to last post
    • Replies: 15
    • Views: 796
    01-04-2018, 11:32 AM Go to last post
  20. Vintage 3-Phase Motor Rebuild

    Started by Clownshoes, 01-01-2018 09:36 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,196
    01-04-2018, 04:16 AM Go to last post
    • Replies: 5
    • Views: 485
    01-01-2018, 07:52 PM Go to last post
  21. RPC output conection (generated ) leg

    Started by RSL, 12-11-2017 03:40 PM
    generated, leg, rpc, wiring
    • Replies: 1
    • Views: 416
    12-30-2017, 12:57 PM Go to last post
    • Replies: 4
    • Views: 295
    12-29-2017, 05:19 PM Go to last post
  22. Help figuring out "coast stop" on Toshiba VFD

    Started by CountryBoy19, 12-20-2017 11:14 AM
    aux, fwd/rvs, motor, stop, triggered
    • Replies: 11
    • Views: 636
    12-29-2017, 06:33 AM Go to last post
  23. Successful CP-200 Conversions

    Started by smilingjohn, 04-06-2012 09:25 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 78
    • Views: 27,899
    12-26-2017, 05:13 PM Go to last post
    • Replies: 2
    • Views: 393
    12-23-2017, 01:27 AM Go to last post
  24. Old Okamoto Grinder 3Phase Switches

    Started by Jericho, 12-15-2017 07:42 PM
    • Replies: 10
    • Views: 2,208
    12-22-2017, 09:54 AM Go to last post
  25. OT electronics tools.Does anyone still use o - scopes anymore?

    Started by Tony Quiring, 12-16-2017 10:48 AM
    3 Pages
    1 2 3
    trade, years, surplus, scopes, side
    • Replies: 49
    • Views: 2,482
    12-21-2017, 06:48 PM Go to last post

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