Page 1 of 225 1231151101 ... LastLast
Threads 1 to 40 of 8968

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 01:46 AM
    10 Pages
    1 2 3 ... 10
    • Replies: 180
    • Views: 379,659
    06-11-2019, 11:05 AM Go to last post
  2. Sticky Thread Sticky: Huanyang VFDs.... Banned from discussion

    Started by JST, 08-02-2017 05:05 PM
    banned, huanyang, sold, units, vfds
    • Replies: 0
    • Views: 8,965
    08-02-2017, 05:05 PM Go to last post
    • Replies: 0
    • Views: 5,823
    04-03-2017, 02:11 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 01:09 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: 9,698
    01-10-2016, 01:09 AM Go to last post
  4. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 10:31 AM
    • Replies: 0
    • Views: 17,856
    02-23-2013, 10:31 AM Go to last post
  1. Found a lathe with a bum motor - motor replacement viability?

    Started by Pyrex, 10-29-2019 10:06 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,230
    11-14-2019, 12:17 PM Go to last post
  2. Motor Contactor for Rotary Convertor/5 HP lathe

    Started by rhoward, 03-13-2016 01:38 AM
    • Replies: 13
    • Views: 3,541
    11-13-2019, 07:57 PM Go to last post
  3. harig 612 surface grinder vfd recomendation?

    Started by reddogforge, 11-08-2019 10:58 PM
    consideration, harig, machine, motor, vfd
    • Replies: 2
    • Views: 210
    11-13-2019, 07:48 PM Go to last post
  4. Mill Motor Runs on Line Power 3P/240VAC But Not on VFD - Why???

    Started by everettengr, 10-17-2019 02:34 PM
    3 Pages
    1 2 3
    • Replies: 54
    • Views: 2,666
    11-13-2019, 11:26 AM Go to last post
  5. Help, What is this? Phase generator?

    Started by EarlF, 11-07-2019 02:57 PM
    • Replies: 13
    • Views: 579
    11-12-2019, 03:32 PM Go to last post
  6. Are VFD's bad for motors?

    Started by DennisCA, 11-05-2019 02:48 AM
    3 Pages
    1 2 3
    • Replies: 45
    • Views: 2,164
    11-12-2019, 12:42 AM Go to last post
  7. 460v 3phase for a VMC with 240v 1ph?

    Started by Agfrvf, 10-17-2019 01:15 PM
    20hp, 240v, 460v, motor, vmc
    • Replies: 12
    • Views: 942
    11-10-2019, 07:59 PM Go to last post
    • Replies: 5
    • Views: 402
    11-09-2019, 08:13 PM Go to last post
  8. Citizen Cincom F12 3 Phase Power

    Started by LIFTED, 11-08-2019 06:17 PM
    • Replies: 1
    • Views: 234
    11-08-2019, 06:18 PM Go to last post
  9. 3 Phase Service Choice?

    Started by silencerman, 11-07-2019 03:31 PM
    delta, leg, service, shop, transformer
    • Replies: 3
    • Views: 376
    11-08-2019, 01:17 AM Go to last post
  10. Breaker/wire size for hard starting 3 phase motors

    Started by Fish On, 11-07-2019 02:06 PM
    amp, motor, phase, starting, wire
    • Replies: 5
    • Views: 259
    11-07-2019, 03:55 PM Go to last post
  11. Pro VFD guys, lets figure out this Yaskawa 626VM3

    Started by huleo, 12-28-2018 02:37 AM
    charge, drive, immediately, power, powered
    • Replies: 5
    • Views: 988
    11-07-2019, 11:54 AM Go to last post
  12. RPC safe/acceptable imbalances?

    Started by rpseguin, 11-04-2019 02:57 PM
    leg, voltage, side, high, rpc
    • Replies: 4
    • Views: 398
    11-07-2019, 05:04 AM Go to last post
  13. On dressing contacts

    Started by 9100, 11-04-2019 08:41 PM
    contactor, contacts, filed, left, making
    • Replies: 18
    • Views: 835
    11-06-2019, 08:58 PM Go to last post
    • Replies: 6
    • Views: 376
    11-05-2019, 11:35 PM Go to last post
  14. Adding VFD to Webb/Whacheon/Mori Seiki?

    Started by rpseguin, 11-04-2019 02:43 PM
    vfd, spindle, adding, motor, webb/whacheon/mori
    • Replies: 5
    • Views: 317
    11-04-2019, 07:58 PM Go to last post
  15. Likely component fault on Powerflex 4 VFD?

    Started by gadget73, 04-20-2017 09:48 AM
    fault, fix, powerflex, time, vfd
    • Replies: 11
    • Views: 13,098
    11-04-2019, 06:50 PM Go to last post
    • Replies: 18
    • Views: 1,053
    11-03-2019, 11:36 PM Go to last post
  16. RPC Wiring question

    Started by alienturtle, 05-15-2019 01:02 PM
    • Replies: 6
    • Views: 881
    11-02-2019, 02:43 PM Go to last post
  17. VFD wired to mill circuitry

    Started by hahnpv, 11-01-2019 05:18 PM
    mill, reason, separate, starter, vfd
    • Replies: 3
    • Views: 335
    11-01-2019, 08:04 PM Go to last post
  18. Rotary Phase Converter Questions

    Started by Kevin T, 09-20-2019 07:00 PM
    2 Pages
    1 2
    • Replies: 32
    • Views: 1,670
    11-01-2019, 04:26 PM Go to last post
  19. VFD vs RPC for compressor

    Started by PTSCummins, 10-28-2019 10:47 AM
    • Replies: 13
    • Views: 765
    10-31-2019, 09:15 PM Go to last post
  20. CNC grade converter

    Started by Bob-J-H, 10-28-2019 05:54 PM
    cnc, compared, converter, grade, regular
    • Replies: 5
    • Views: 506
    10-31-2019, 06:39 PM Go to last post
    • Replies: 12
    • Views: 613
    10-31-2019, 10:16 AM Go to last post
    • Replies: 6
    • Views: 677
    10-29-2019, 01:54 PM Go to last post
  21. Phaseconverterusa.com

    Started by Dpelkowski, 10-22-2019 09:30 PM
    message, order, response, update, yesterday
    • Replies: 5
    • Views: 678
    10-29-2019, 11:07 AM Go to last post
  22. very old motor wiring

    Started by jordanirvin, 10-27-2019 02:53 PM
    • Replies: 5
    • Views: 420
    10-29-2019, 08:16 AM Go to last post
  23. Run caps as starting caps for rotary phase converter ???

    Started by Lock 45, 10-27-2019 03:18 PM
    2 Pages
    1 2
    bank, caps, phase, run, wire
    • Replies: 20
    • Views: 889
    10-29-2019, 05:09 AM Go to last post
  24. VFD teco 7300 blown capacitor

    Started by Roscoepcoltrane, 10-24-2019 04:25 PM
    blown, capacitor, ground, terminals, vfd
    • Replies: 7
    • Views: 1,012
    10-28-2019, 05:50 PM Go to last post
  25. Where to Source RPC Idler Motor

    Started by Grenade, 10-27-2019 12:10 AM
    deal, idler, motor, motors, rpc
    • Replies: 9
    • Views: 693
    10-28-2019, 01:27 AM Go to last post
  26. Larger CNC lathe on phase converter?

    Started by mmurray70, 10-27-2019 04:15 PM
    larger, lathe, machine, phase, setup
    • Replies: 2
    • Views: 302
    10-27-2019, 07:28 PM Go to last post
  27. Run a welder off a Phase Perfect Converter?

    Started by baran3, 10-05-2019 07:22 PM
    converter, perfect, phase, unit, welder
    • Replies: 12
    • Views: 1,514
    10-27-2019, 09:30 AM Go to last post
  28. Buck/Boost to Phase Perfect

    Started by Rick Finsta, 10-24-2019 05:08 PM
    120v/95v/195v, ground, legs, perfect, phase
    • Replies: 6
    • Views: 1,030
    10-25-2019, 02:14 PM Go to last post
  29. VFD as a 3 phase source

    Started by Larry on Lake Superior, 10-22-2019 11:09 PM
    catalog, lathe, motor, speed, stock
    • Replies: 11
    • Views: 771
    10-24-2019, 04:48 PM Go to last post
  30. Mechanical ways to do a T branch circuit?

    Started by rons, 10-18-2019 04:33 PM
    2 Pages
    1 2
    • Replies: 35
    • Views: 1,871
    10-23-2019, 02:18 PM Go to last post
  31. Question on VFD vs RPC

    Started by rbahr, 10-13-2019 01:00 AM
    5hp, motor, rpc, start, vfd
    • Replies: 12
    • Views: 1,089
    10-22-2019, 09:48 PM Go to last post
  32. VFD Bus capacitor reforming Docs

    Started by mike_kilroy, 01-09-2017 02:46 PM
    couple, docs, share, thought, vfds
    • Replies: 6
    • Views: 2,214
    10-21-2019, 11:43 AM Go to last post
  33. Overload Sizing and FLA when using RPC

    Started by *D'B=6bk, 10-17-2019 02:33 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,242
    10-21-2019, 01:18 AM Go to last post
  34. Help with Wiring Rotary Phase Converter

    Started by Cephalon, 10-11-2019 04:46 PM
    • Replies: 5
    • Views: 708
    10-20-2019, 01:20 AM Go to last post
  35. how can I tell the design voltage of an unlabeled 3 phase motor?

    Started by tomjelly, 09-20-2019 05:16 PM
    2 Pages
    1 2
    machinery, motor, phase, starter, transformer
    • Replies: 20
    • Views: 1,945
    10-20-2019, 01:02 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
  •