Page 1 of 233 1231151101 ... LastLast
Threads 1 to 40 of 9315

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: 192
    • Views: 412,574
    06-07-2020, 09:10 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: 1,521
    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: 13,520
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 8,320
    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 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: 12,332
    01-10-2016, 12:09 AM Go to last post
  5. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 09:31 AM
    • Replies: 0
    • Views: 20,432
    02-23-2013, 09:31 AM Go to last post
    • Replies: 4
    • Views: 135
    09-20-2020, 08:50 PM Go to last post
  1. Question on VFDs and Motor Horsepower

    Started by Sweet Dreamer, 09-10-2020 07:01 PM
    lathe, motor, question, running, vfd
    • Replies: 13
    • Views: 469
    09-20-2020, 08:34 PM Go to last post
    • Replies: 7
    • Views: 276
    09-20-2020, 07:35 PM Go to last post
  2. Question Regarding step down transformers.

    Started by TheBigLebowski, 09-16-2020 06:41 PM
    phase, shop, transformer, transformers, wye
    • Replies: 5
    • Views: 383
    09-19-2020, 05:45 AM Go to last post
    • Replies: 9
    • Views: 421
    09-17-2020, 11:07 PM Go to last post
    • Replies: 2
    • Views: 155
    09-17-2020, 02:33 PM Go to last post
  3. Using dc capacitors in an ac circuit

    Started by Bob-J-H, 09-07-2020 02:43 PM
    back, caps, circuit, lot, talking
    • Replies: 13
    • Views: 613
    09-16-2020, 10:04 PM Go to last post
  4. Buck Boost Transformer: Wire Connectors?

    Started by 300sniper, 09-15-2020 02:56 PM
    boost, buck, read, transformers, wire
    • Replies: 3
    • Views: 222
    09-15-2020, 10:41 PM Go to last post
  5. VFD deceleration issue - PLEASE HELP !

    Started by TrueBor, 08-29-2020 04:25 AM
    3 Pages
    1 2 3
    lathe, motor, pole, stop, vfd
    • Replies: 40
    • Views: 1,805
    09-15-2020, 10:37 PM Go to last post
    • Replies: 19
    • Views: 608
    09-15-2020, 03:19 PM Go to last post
  6. large pony start RPC

    Started by Grigg, 07-13-2009 12:02 PM
    3 Pages
    1 2 3
    • Replies: 52
    • Views: 8,297
    09-14-2020, 05:18 PM Go to last post
  7. Successful CP-200 Conversions

    Started by smilingjohn, 04-06-2012 09:25 AM
    6 Pages
    1 2 3 ... 6
    • Replies: 104
    • Views: 49,270
    09-14-2020, 05:04 PM Go to last post
  8. Question on a single phase motor repair

    Started by Sweet Dreamer, 09-10-2020 06:53 PM
    control, delay, motor, points, relay
    • Replies: 16
    • Views: 635
    09-13-2020, 07:52 PM Go to last post
  9. O/T - 115v or 208/230v motor Q?

    Started by Terry Keeley, 09-12-2020 10:43 AM
    115v, motor, phase, run, single
    • Replies: 9
    • Views: 508
    09-13-2020, 03:41 AM Go to last post
    • Replies: 2
    • Views: 239
    09-12-2020, 12:15 AM Go to last post
  10. What do contactor labels A.V. and A.R. mean?

    Started by Ixzed13, 09-11-2020 06:25 PM
    • Replies: 0
    • Views: 196
    09-11-2020, 06:25 PM Go to last post
  11. Buck Boost Transformer, Before or After RPC?

    Started by 300sniper, 09-02-2020 04:41 PM
    2 Pages
    1 2
    buck, motor, rpc, transformers, voltage
    • Replies: 27
    • Views: 1,238
    09-11-2020, 04:50 PM Go to last post
    • Replies: 8
    • Views: 566
    09-11-2020, 03:45 PM Go to last post
  12. Smart Brown 1024 vfd conversion

    Started by beckerkumm, 09-10-2020 08:28 PM
    • Replies: 7
    • Views: 295
    09-11-2020, 02:40 PM Go to last post
    • Replies: 8
    • Views: 417
    09-10-2020, 01:36 PM Go to last post
  13. TECO E510 on a 1200 RPM FRAY mill

    Started by NRDock, 04-14-2019 09:23 PM
    back, change, pmslv, raised, teco
    • Replies: 3
    • Views: 921
    09-07-2020, 07:53 PM Go to last post
  14. High Leg Delta

    Started by edl, 09-04-2020 08:25 AM
    2 Pages
    1 2
    • Replies: 30
    • Views: 942
    09-07-2020, 06:21 PM Go to last post
    • Replies: 1
    • Views: 300
    09-03-2020, 10:54 PM Go to last post
    • Replies: 19
    • Views: 1,212
    09-03-2020, 01:07 AM Go to last post
  15. Prototrak mx2 xyz pro 2000

    Started by Donal13, 09-01-2020 05:00 PM
    • Replies: 11
    • Views: 434
    09-02-2020, 04:58 PM Go to last post
  16. RPC sizing question

    Started by bhigdog, 09-01-2020 11:50 AM
    briefly, harm, motor, rpc, run
    • Replies: 15
    • Views: 481
    09-02-2020, 10:55 AM Go to last post
    • Replies: 3
    • Views: 280
    09-01-2020, 01:34 PM Go to last post
  17. RPC High Leg and Three Phase Motor

    Started by Vladymere gr, 08-23-2020 04:46 PM
    2 Pages
    1 2
    • Replies: 30
    • Views: 1,641
    08-30-2020, 05:17 PM Go to last post
  18. Van Norman #12 has difficulty running higher speeds off static PC

    Started by shaggy, 08-04-2020 12:41 AM
    4 Pages
    1 2 3 ... 4
    • Replies: 63
    • Views: 2,887
    08-30-2020, 11:57 AM Go to last post
  19. VFD or soft start strategy for lathe

    Started by backspace119, 08-25-2020 02:46 PM
    vfd, lathe, start, soft, phase
    • Replies: 7
    • Views: 709
    08-29-2020, 04:50 PM Go to last post
  20. check step up transformer volts & grounding

    Started by Rob F., 08-27-2020 05:01 PM
    ground, input, step, transformer, volts
    • Replies: 9
    • Views: 575
    08-29-2020, 12:24 AM Go to last post
  21. Buck boost transformer sizing

    Started by Grigg, 08-26-2020 04:12 PM
    cleaner, kva, legs, load, transformers
    • Replies: 2
    • Views: 410
    08-26-2020, 09:35 PM Go to last post
    • Replies: 5
    • Views: 742
    08-25-2020, 12:36 PM Go to last post
  22. Drum switch on 220v lathe motor.

    Started by Jonwick, 08-21-2020 11:45 AM
    • Replies: 17
    • Views: 845
    08-24-2020, 01:10 AM Go to last post
  23. C-11G contactor

    Started by Jonwick, 08-21-2020 08:03 AM
    • Replies: 4
    • Views: 326
    08-23-2020, 09:20 AM Go to last post
  24. DC or 3 phase motor for a Lathe

    Started by piedmontg, 08-18-2020 04:24 PM
    2 Pages
    1 2
    lathe, motor, phase, real, single
    • Replies: 39
    • Views: 1,634
    08-21-2020, 07:51 PM Go to last post
  25. Can I Test Old Vacuum Electron Tubes a simple way?

    Started by Richard King, 08-11-2015 05:05 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 96
    • Views: 26,795
    08-21-2020, 07:48 PM Go to last post
    • Replies: 6
    • Views: 475
    08-21-2020, 02:08 PM Go to last post
  26. Wiring old three phase machines

    Started by 8wire, 08-15-2020 12:18 PM
    3 Pages
    1 2 3
    • Replies: 46
    • Views: 2,444
    08-21-2020, 08:37 AM Go to last post
  27. Phase Converter for CNC Lathe

    Started by white84monte, 08-18-2020 04:38 PM
    converter, lathe, phase, power, shop
    • Replies: 11
    • Views: 797
    08-21-2020, 06:51 AM Go to last post

Forum Information and Options

Moderators of this Forum

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

sponso

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 50 replies or 500 views
Hot thread with unread posts
More than 50 replies or 500 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •