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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, 09-20-2006 11:46 PM
    9 Pages
    1 2 3 ... 9
    • Replies: 167
    • Views: 302,973
    07-21-2017, 09:54 AM Go to last post
    • Replies: 0
    • Views: 1,241
    04-03-2017, 12:11 PM Go to last post
  2. Sticky Thread Sticky: Please keep threads to one subject as much as possible

    Started by JST, 01-09-2016 11:09 PM
    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: 5,200
    01-09-2016, 11:09 PM Go to last post
  3. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 08:31 AM
    • Replies: 0
    • Views: 12,440
    02-23-2013, 08:31 AM Go to last post
    • Replies: 6
    • Views: 182
    07-21-2017, 09:43 PM Go to last post
  1. Rotary Phase Converter running hot

    Started by borne2fly, 07-20-2017 05:43 PM
    converter, hot, phase, rotary, running
    • Replies: 18
    • Views: 630
    07-21-2017, 07:39 PM Go to last post
  2. Phase Perfect DPC-A10 not resetting on start up ..............

    Started by Toolznthings, 07-17-2017 12:14 PM
    2 Pages
    1 2
    miss, parts, phase, problem, unit
    • Replies: 22
    • Views: 661
    07-21-2017, 03:18 PM Go to last post
  3. Breaker Wiring Help, Loose Wire

    Started by Insert, 07-18-2017 05:54 PM
    • Replies: 8
    • Views: 343
    07-21-2017, 12:28 PM Go to last post
  4. Rotary phase converter questions

    Started by EliG, 07-19-2017 09:51 PM
    amps, contactor, idler, potential relay, rotary phase converter
    • Replies: 2
    • Views: 149
    07-20-2017, 10:16 PM Go to last post
  5. Phase Converter Cutoff Circuitry

    Started by Jacksquat, 07-20-2017 09:50 AM
    box, breaker, junction, mill, phase
    • Replies: 1
    • Views: 127
    07-20-2017, 11:22 AM Go to last post
  6. Need help 3Phase motor 6 wires new cam switch

    Started by Millers, 07-20-2017 06:39 AM
    • Replies: 3
    • Views: 117
    07-20-2017, 10:24 AM Go to last post
  7. DC smoothing cap value?

    Started by Peter., 07-16-2017 04:53 PM
    calculators, cap, online, rectifier, smoothing
    • Replies: 14
    • Views: 482
    07-19-2017, 10:20 AM Go to last post
  8. Dead Motor, Rewind or Replace?

    Started by Cannonmn, 07-12-2017 07:22 PM
    2 Pages
    1 2
    • Replies: 39
    • Views: 1,255
    07-17-2017, 10:43 PM Go to last post
  9. Heat output of 200KVA transformer?

    Started by Cannonmn, 07-16-2017 06:23 PM
    heat, load, shop, transformer
    • Replies: 5
    • Views: 314
    07-17-2017, 06:57 PM Go to last post
  10. VFD for a 2-speed Enco Mill (J-head)

    Started by weedy64, 07-17-2017 12:48 PM
    2-speed, braking, mill, motor, vfd
    • Replies: 1
    • Views: 146
    07-17-2017, 05:42 PM Go to last post
  11. Check my 480v 3 ph plan please

    Started by Cannonmn, 06-26-2017 07:44 PM
    2 Pages
    1 2
    3 phase, 480v, delta, transformer, wye
    • Replies: 21
    • Views: 1,182
    07-16-2017, 03:07 PM Go to last post
  12. Converter control box

    Started by YoungDen, 07-15-2017 08:36 PM
    freight, harbor, meters, thought, wrong
    • Replies: 3
    • Views: 294
    07-16-2017, 10:43 AM Go to last post
  13. baldor bench grinder lost power

    Started by kensmachine, 07-15-2017 08:28 AM
    baldor, bench, lost, power, tool
    • Replies: 9
    • Views: 347
    07-16-2017, 10:41 AM Go to last post
    • Replies: 4
    • Views: 208
    07-15-2017, 10:18 AM Go to last post
    • Replies: 16
    • Views: 636
    07-15-2017, 07:13 AM Go to last post
    • Replies: 10
    • Views: 429
    07-14-2017, 11:55 PM Go to last post
  14. VFD speed control

    Started by whateg0, 07-12-2017 07:06 AM
    accel/decel, apply, control, point, vfd
    • Replies: 16
    • Views: 539
    07-13-2017, 10:50 AM Go to last post
  15. New address, no 3 phase supply and may be very expensive to have one

    Started by IanX, 07-07-2017 06:02 AM
    2 Pages
    1 2
    • Replies: 26
    • Views: 1,028
    07-11-2017, 09:28 PM Go to last post
  16. Proper high current motor connections.

    Started by imported_brian_m, 07-08-2017 11:51 AM
    bit, connections, motor, proper, wires
    • Replies: 11
    • Views: 559
    07-10-2017, 03:06 PM Go to last post
    • Replies: 12
    • Views: 535
    07-09-2017, 02:27 PM Go to last post
  17. True three phase power system, motor/generator.

    Started by TDegenhart, 07-04-2017 06:58 PM
    2 Pages
    1 2
    motor/generator, phase, power, rpc, true
    • Replies: 30
    • Views: 1,286
    07-08-2017, 09:32 AM Go to last post
  18. Successful CP-200 Conversions

    Started by smilingjohn, 04-06-2012 08:25 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 73
    • Views: 24,370
    07-06-2017, 08:29 PM Go to last post
  19. Life span of a Phase Perfect.

    Started by Granite, 06-23-2017 09:26 AM
    3 Pages
    1 2 3
    • Replies: 59
    • Views: 2,804
    07-06-2017, 06:11 PM Go to last post
    • Replies: 8
    • Views: 489
    07-06-2017, 12:53 PM Go to last post
    • Replies: 4
    • Views: 438
    07-05-2017, 10:44 AM Go to last post
  20. Post Miller CP-250TS converted to single-phase

    Started by DaveKamp, 06-22-2010 07:43 PM
    7 Pages
    1 2 3 ... 7
    • Replies: 130
    • Views: 57,816
    07-03-2017, 07:21 PM Go to last post
  21. 10HP DC motor/generator, practical uses?

    Started by Grigg, 06-21-2017 09:01 AM
    • Replies: 18
    • Views: 848
    07-02-2017, 07:55 PM Go to last post
  22. Bridgeport Mill Wiring

    Started by Jacksquat, 06-27-2017 07:08 PM
    2 Pages
    1 2
    • Replies: 37
    • Views: 1,339
    07-01-2017, 09:15 PM Go to last post
  23. What do I need to power a few three phase machines? RPC Questions

    Started by ajk2004, 04-19-2017 12:19 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 2,239
    07-01-2017, 05:31 AM Go to last post
  24. Phase Converter Idle Motor Issue - Hard Shutdown

    Started by Speedracer983, 06-27-2017 01:38 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 983
    06-30-2017, 01:35 PM Go to last post
  25. A question for the step motor drive experts

    Started by Forrest Addy, 06-27-2017 12:05 AM
    amps, dip, drive, motor, switches
    • Replies: 10
    • Views: 698
    06-29-2017, 03:16 AM Go to last post
  26. VFD Hz HP correlation

    Started by Jonathans, 06-25-2017 06:25 PM
    correlation, hp/torque, motor, power, rpm
    • Replies: 7
    • Views: 533
    06-27-2017, 09:26 PM Go to last post
  27. Suggestions please on this strange RPC test reading.

    Started by imported_brian_m, 06-19-2017 11:58 PM
    3 Pages
    1 2 3
    amps, idler, machine, motor, supply
    • Replies: 41
    • Views: 1,310
    06-26-2017, 01:47 PM Go to last post
  28. JET JDP-20VS-3 Drill Press motor replacement

    Started by Offfishn, 09-21-2016 01:51 PM
    • Replies: 9
    • Views: 1,345
    06-22-2017, 08:46 PM Go to last post
    • Replies: 7
    • Views: 483
    06-22-2017, 08:25 PM Go to last post
  29. Need help understanding a motor wiring diagram

    Started by Lapua65, 06-20-2017 08:16 PM
    • Replies: 1
    • Views: 278
    06-22-2017, 10:17 AM Go to last post
  30. Residential code voltage

    Started by Matt Matt, 06-20-2017 10:47 PM
    code, residential, rule, state, voltage
    • Replies: 5
    • Views: 503
    06-21-2017, 04:33 PM Go to last post
  31. VFD for 165 Volt motor? have some questions...

    Started by mmurray70, 06-18-2017 09:08 PM
    11kw, 40a, drive, motor, power
    • Replies: 8
    • Views: 443
    06-20-2017, 07:28 PM Go to last post

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