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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: 162
    • Views: 211,736
    02-11-2015, 02:27 PM Go to last post
  2. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 09:31 AM
    • Replies: 0
    • Views: 5,452
    JST
    02-23-2013, 09:31 AM Go to last post
  1. Machine Control Panel Voltage Seems Reversed - Phase Converter Issue?

    Started by kscycler, 02-25-2015 10:57 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 66
    • Views: 1,555
    03-04-2015, 02:33 PM Go to last post
  2. Lathe will not shut off?? Need help please

    Started by cgmaster, 03-03-2015 09:46 PM
    • Replies: 9
    • Views: 252
    03-04-2015, 12:28 AM Go to last post
  3. Start up squeal on a rotory phase converter

    Started by fatoldman7, 02-24-2015 03:18 PM
    • Replies: 19
    • Views: 501
    03-03-2015, 08:50 PM Go to last post
  4. 20-HP RPC /Need some help please

    Started by emcmike, 02-04-2015 06:50 PM
    • Replies: 13
    • Views: 553
    03-03-2015, 08:01 PM Go to last post
  5. 10EE 3P Motor Field Windings

    Started by gernoff, 01-16-2015 08:06 PM
    • Replies: 12
    • Views: 494
    03-02-2015, 02:04 AM Go to last post
  6. Putting my phase converter together

    Started by housedad, 01-13-2015 12:12 AM
    2 Pages
    1 2
    • Replies: 34
    • Views: 1,589
    03-02-2015, 02:03 AM Go to last post
    • Replies: 4
    • Views: 295
    03-01-2015, 04:37 PM Go to last post
  7. Phase Conversion for HLV-H

    Started by SDA, 02-28-2015 06:29 PM
    • Replies: 6
    • Views: 184
    03-01-2015, 03:05 PM Go to last post
  8. Adding reverse switch to KBAC-27D

    Started by Matthew Gregory, 02-27-2015 12:59 PM
    • Replies: 10
    • Views: 219
    03-01-2015, 01:30 PM Go to last post
    • Replies: 1
    • Views: 163
    03-01-2015, 12:12 AM Go to last post
  9. How I mounted and connected my VFD, FYI.

    Started by WDG, 02-26-2015 06:13 PM
    • Replies: 4
    • Views: 344
    JST
    02-26-2015, 07:22 PM Go to last post
    • Replies: 2
    • Views: 191
    Tor
    02-26-2015, 06:25 PM Go to last post
  10. VFD for Fuel Dispensers at gas station

    Started by digimart, 02-25-2015 11:36 PM
    • Replies: 10
    • Views: 371
    SAF
    02-26-2015, 06:23 PM Go to last post
  11. WTB Digital Phase Converter 20HP

    Started by tuzserhu, 02-25-2015 11:52 AM
    • Replies: 6
    • Views: 230
    02-26-2015, 01:19 PM Go to last post
  12. Wiring diagram 230v cscr start circuit

    Started by 4miller1, 02-19-2015 09:19 AM
    • Replies: 2
    • Views: 251
    02-26-2015, 11:06 AM Go to last post
  13. Selinium rectifyer help/replacement

    Started by Tjrahl, 02-20-2015 03:12 PM
    • Replies: 9
    • Views: 454
    02-25-2015, 02:52 PM Go to last post
  14. Interest level in being guinea pig for Chinese VFD?

    Started by J Lauffer, 01-28-2015 01:15 PM
    3 Pages
    1 2 3
    • Replies: 52
    • Views: 2,465
    02-25-2015, 12:52 PM Go to last post
    • Replies: 24
    • Views: 753
    SAF
    02-24-2015, 08:16 PM Go to last post
  15. ITE Contactor help?

    Started by jerrdan john, 02-23-2015 12:22 PM
    • Replies: 9
    • Views: 238
    02-24-2015, 03:20 PM Go to last post
    • Replies: 12
    • Views: 496
    02-23-2015, 01:34 AM Go to last post
  16. understanding transformer direction

    Started by pspuller1, 02-18-2015 07:48 AM
    2 Pages
    1 2
    • Replies: 26
    • Views: 801
    02-22-2015, 11:11 PM Go to last post
  17. Please help me identify this capacitor!

    Started by maxbar, 02-18-2015 02:04 PM
    • Replies: 14
    • Views: 455
    02-20-2015, 02:50 AM Go to last post
  18. Is there any way of reducing the surge when powering up a transformer?

    Started by Peter., 02-07-2015 11:02 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 67
    • Views: 1,928
    02-19-2015, 10:03 PM Go to last post
    • Replies: 7
    • Views: 379
    02-19-2015, 12:46 PM Go to last post
    • Replies: 5
    • Views: 294
    JST
    02-19-2015, 12:25 AM Go to last post
  19. downrating a motor hp/ speed/ vfd size

    Started by kd1yt, 02-17-2015 12:00 PM
    • Replies: 14
    • Views: 356
    02-17-2015, 09:52 PM Go to last post
  20. VFD options fpr a Tree 2uvr-c?

    Started by bruinbro, 02-11-2015 08:12 PM
    • Replies: 11
    • Views: 431
    02-15-2015, 09:41 AM Go to last post
  21. Vfd setting to prevent damage-new motor too big

    Started by challenger, 02-12-2015 05:24 PM
    • Replies: 2
    • Views: 253
    02-14-2015, 10:57 AM Go to last post
  22. shuting off spindle on CNC machine sends high voltage back to panel

    Started by FK, 01-06-2015 11:08 AM
    2 Pages
    1 2
    • Replies: 25
    • Views: 1,054
    JST
    02-10-2015, 11:26 PM Go to last post
  23. RPC mag switch prob

    Started by timewarp, 02-05-2015 01:18 AM
    • Replies: 12
    • Views: 487
    SAF
    02-10-2015, 02:55 PM Go to last post
  24. What type of VFD control for lathe

    Started by hacklordsniper, 02-09-2015 08:16 AM
    • Replies: 1
    • Views: 304
    02-09-2015, 03:35 PM Go to last post
  25. VFD and Controller Engineer saying hello

    Started by Andy M, 11-29-2012 01:27 PM
    • Replies: 5
    • Views: 1,333
    02-08-2015, 10:21 PM Go to last post
  26. Roto phase converter age

    Started by shelby csx, 01-24-2015 07:16 PM
    • Replies: 5
    • Views: 452
    JST
    02-08-2015, 09:12 PM Go to last post
  27. Need Wiring Help PLEASE!

    Started by dezil, 01-19-2015 08:37 PM
    • Replies: 19
    • Views: 991
    02-07-2015, 07:58 PM Go to last post
  28. AC Gear motor wiring help ???

    Started by rbertalotto, 02-07-2015 03:27 PM
    • Replies: 1
    • Views: 196
    02-07-2015, 04:10 PM Go to last post
  29. Cleaning grimy PCBs?

    Started by huleo, 02-06-2015 01:39 AM
    • Replies: 0
    • Views: 235
    02-06-2015, 01:39 AM Go to last post
  30. VFD for a 220V Three Phase

    Started by 67Camaro, 02-02-2015 09:12 AM
    • Replies: 3
    • Views: 350
    02-05-2015, 07:41 PM Go to last post
  31. how are you guys tying your wires together?

    Started by Joe Miranda, 02-02-2015 06:43 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 1,176
    02-05-2015, 08:16 AM Go to last post
  32. 1 HP 120 to 240 Volt VFDs at Surplus Center

    Started by peterh5322, 01-30-2015 01:52 PM
    • Replies: 3
    • Views: 443
    02-04-2015, 06:17 PM Go to last post
  33. Transformer wiring 208V to 380V, Emcoturn 340

    Started by will gilmore, 11-14-2014 08:29 AM
    • Replies: 15
    • Views: 830
    02-04-2015, 08:45 AM Go to last post

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