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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, 01-09-2016 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: 1,240
    01-09-2016, 11:09 PM Go to last post
  2. 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: 163
    • Views: 255,629
    12-01-2015, 04:32 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: 8,945
    02-23-2013, 08:31 AM Go to last post
  1. American RPC

    Started by cob, 04-28-2016 11:37 PM
    • Replies: 6
    • Views: 198
    04-29-2016, 08:32 PM Go to last post
  2. Help appreciated with Sheldon lathe wiring

    Started by beeser, 04-27-2016 04:37 PM
    • Replies: 8
    • Views: 268
    04-29-2016, 04:16 PM Go to last post
  3. Teco FM50 on/off switch?

    Started by Phil27, 04-24-2016 01:35 PM
    • Replies: 11
    • Views: 336
    04-29-2016, 04:16 PM Go to last post
    • Replies: 12
    • Views: 831
    04-29-2016, 08:38 AM Go to last post
  4. Successful CP-200 Conversions

    Started by smilingjohn, 04-06-2012 08:25 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 62
    • Views: 16,656
    04-28-2016, 08:18 AM Go to last post
  5. "High Temp" rated connectors

    Started by Sea Farmer, 04-27-2016 01:54 PM
    connectors, high, qualify, rating, temp
    • Replies: 5
    • Views: 192
    04-27-2016, 06:11 PM Go to last post
  6. Rotary phase converter to build or not to build.

    Started by Pottsie454, 04-19-2016 06:52 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 75
    • Views: 2,108
    04-26-2016, 12:14 PM Go to last post
  7. RPC balancing

    Started by shandit66, 01-11-2016 04:26 PM
    3 Pages
    1 2 3
    • Replies: 44
    • Views: 2,756
    04-25-2016, 09:05 PM Go to last post
  8. 8hp 3 phase motor

    Started by jackrolfe8, 04-25-2016 01:19 AM
    phase, 8hp, run, motor, generator
    • Replies: 4
    • Views: 217
    04-25-2016, 03:18 PM Go to last post
  9. L15-20 ok for wye power?

    Started by Royldean, 04-25-2016 08:16 AM
    instron, l15-20, upgrade, wiring, wye
    • Replies: 3
    • Views: 183
    04-25-2016, 02:29 PM Go to last post
  10. 440v step up transformer in SoCal?

    Started by tenaja, 04-24-2016 08:08 PM
    3phase, decent, socal, step, transformer
    • Replies: 1
    • Views: 144
    04-25-2016, 12:38 PM Go to last post
  11. Guidance needed on 3 phase supply

    Started by arielht500, 04-24-2016 01:52 AM
    buy, guidance, phase, run, supply
    • Replies: 6
    • Views: 273
    04-24-2016, 08:59 AM Go to last post
    • Replies: 4
    • Views: 246
    04-23-2016, 10:01 PM Go to last post
  12. Phase Perfect Phase Converter

    Started by rons, 04-13-2016 09:14 AM
    2 Pages
    1 2
    • Replies: 31
    • Views: 1,166
    04-23-2016, 11:39 AM Go to last post
  13. Leeson 208 - 330v Motor wireing

    Started by Megakbyrne, 04-19-2016 07:26 AM
    110v, inexperienced, leeson, motor, safetly
    • Replies: 7
    • Views: 292
    04-22-2016, 05:59 AM Go to last post
    • Replies: 19
    • Views: 452
    04-22-2016, 12:04 AM Go to last post
    • Replies: 7
    • Views: 305
    04-21-2016, 06:08 AM Go to last post
  14. Question Powerstat autotransformer brush question

    Started by mikey553, 04-18-2016 11:05 AM
    autotransformer, brush, powerstat, tip, wide
    • Replies: 5
    • Views: 247
    04-19-2016, 04:18 PM Go to last post
  15. Help me choose my first VFD

    Started by GrantA, 04-18-2016 07:28 AM
    abb, good, guys, problem, similar
    • Replies: 10
    • Views: 442
    04-19-2016, 11:21 AM Go to last post
  16. Phase Perfect Sizing Questions

    Started by countryboy1966, 04-07-2016 02:41 PM
    20hp, machines, perfect, phase, unit
    • Replies: 9
    • Views: 527
    04-18-2016, 08:42 AM Go to last post
  17. Wire up a phase convertor

    Started by cob, 03-09-2016 07:08 AM
    2 Pages
    1 2
    • Replies: 32
    • Views: 1,878
    04-17-2016, 11:08 PM Go to last post
  18. Motor Starting Issue

    Started by t120r, 04-17-2016 03:51 PM
    contactor, motor, power, starting, wiring
    • Replies: 3
    • Views: 253
    04-17-2016, 08:22 PM Go to last post
  19. Rpc to power several motors plus VFD

    Started by m2salmon, 04-15-2016 10:13 PM
    3ph, balance, motor, rpc, vfd
    • Replies: 11
    • Views: 445
    04-17-2016, 04:35 PM Go to last post
  20. Another new VFD to the market

    Started by Matt Matt, 04-07-2016 09:12 PM
    • Replies: 14
    • Views: 1,175
    04-17-2016, 08:30 AM Go to last post
    • Replies: 2
    • Views: 250
    04-16-2016, 03:53 PM Go to last post
  21. 240V to 480V transformer questions

    Started by Grigg, 03-16-2016 08:23 AM
    2 Pages
    1 2
    • Replies: 30
    • Views: 1,722
    04-15-2016, 09:58 PM Go to last post
  22. Need Design or Information - 440v-3ph In to 220v-1ph Out

    Started by Walter A, 04-13-2016 10:37 AM
    2 Pages
    1 2
    • Replies: 27
    • Views: 693
    04-14-2016, 09:38 AM Go to last post
  23. Please help with capacitor sizing for 7.5 HP RPC

    Started by cgrutt, 04-11-2016 07:40 PM
    2 Pages
    1 2
    capacitors, caps, mfd, rpc, run
    • Replies: 30
    • Views: 881
    04-13-2016, 09:42 PM Go to last post
  24. *Need help wiring a phase converter*

    Started by ladrhog, 04-02-2016 08:40 AM
    • Replies: 4
    • Views: 453
    04-12-2016, 10:39 PM Go to last post
  25. Transformer humming versus buzzing.

    Started by ions82, 01-07-2012 10:49 AM
    3 Pages
    1 2 3
    • Replies: 51
    • Views: 3,764
    04-11-2016, 02:00 PM Go to last post
    • Replies: 4
    • Views: 341
    04-10-2016, 11:59 AM Go to last post
  26. Help Wiring 1 phase lathe motor PM1236

    Started by Maglin, 03-17-2016 06:29 PM
    • Replies: 2
    • Views: 425
    04-09-2016, 01:40 PM Go to last post
  27. 3 phase 30hp refuses to run..issues need help!

    Started by kuality, 04-02-2016 02:18 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 1,122
    04-09-2016, 01:24 PM Go to last post
    • Replies: 8
    • Views: 463
    04-09-2016, 08:06 AM Go to last post
  28. rpc start circut problems

    Started by windsormw, 12-06-2015 12:16 PM
    circut, multimeter, rpc, start, transformer
    • Replies: 9
    • Views: 874
    04-08-2016, 10:50 PM Go to last post
  29. Phase Craft Control Panel: Any good?

    Started by plygasser47, 06-13-2013 07:13 PM
    • Replies: 16
    • Views: 5,884
    04-06-2016, 10:04 AM Go to last post
  30. What will this trsormer do?

    Started by bob, 04-04-2016 06:45 AM
    amps, bob, handle, idea, price
    • Replies: 4
    • Views: 404
    04-04-2016, 04:51 PM Go to last post
  31. Forward reverse drum switch motor question

    Started by Glenn Brooks, 04-03-2016 11:20 PM
    • Replies: 4
    • Views: 366
    04-04-2016, 02:46 PM Go to last post
  32. Need to change ohm value of pot.

    Started by swellwelder, 04-02-2016 05:30 PM
    10k, circuit, control, pot, speed
    • Replies: 10
    • Views: 486
    04-03-2016, 09:35 PM Go to last post
  33. Converting an RC 256 to single phase

    Started by tjb836, 02-25-2012 06:17 PM
    • Replies: 16
    • Views: 6,124
    04-03-2016, 04:54 PM Go to last post

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