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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
    10 Pages
    1 2 3 ... 10
    • Replies: 195
    • Views: 424,349
    02-03-2021, 02:21 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: 2,453
    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: 15,442
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 9,046
    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 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: 13,084
    01-10-2016, 01:09 AM Go to last post
  5. Sticky Thread Sticky: A reminder.... please make your thread title meaningful

    Started by JST, 02-23-2013 10:31 AM
    • Replies: 0
    • Views: 21,187
    02-23-2013, 10:31 AM Go to last post
  1. Messed up my WNY RPC while moving

    Started by shandit66, 03-02-2021 04:20 PM
    • Replies: 7
    • Views: 512
    03-03-2021, 10:32 PM Go to last post
  2. Question for VFD experts.

    Started by 9100, 02-24-2021 06:02 PM
    drives, manual, panel, remote, speed
    • Replies: 4
    • Views: 319
    03-03-2021, 09:07 PM Go to last post
  3. Sizing VFD for Nuttall Lathe 1phase to 3 phase

    Started by HobbyMaker, 02-05-2021 10:15 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,202
    03-03-2021, 09:06 PM Go to last post
    • Replies: 0
    • Views: 84
    03-03-2021, 09:03 AM Go to last post
    • Replies: 9
    • Views: 716
    03-02-2021, 10:43 AM Go to last post
    • Replies: 2
    • Views: 169
    03-01-2021, 05:57 PM Go to last post
  4. Phase converter for dual motor surface grinder

    Started by toadboy65, 02-27-2021 08:53 PM
    grinder, motor, phase, run, surface
    • Replies: 7
    • Views: 571
    03-01-2021, 12:44 PM Go to last post
    • Replies: 4
    • Views: 282
    02-27-2021, 02:40 AM Go to last post
  5. Allen Bradley Bulletin 712 transformer

    Started by Mold God, 11-07-2020 01:06 PM
    • Replies: 14
    • Views: 1,247
    02-27-2021, 01:24 AM Go to last post
    • Replies: 15
    • Views: 619
    02-26-2021, 08:11 PM Go to last post
  6. Square D Motor Starter coil failure

    Started by TFPace, 02-20-2021 08:16 PM
    480vac, coil, motor, square, starter
    • Replies: 12
    • Views: 489
    02-26-2021, 05:34 PM Go to last post
  7. Hardinge esm 59 turret with VFD

    Started by Titans2021, 02-24-2021 03:09 PM
    machine, phase, turret, vfd, vfd 1 phase to 3 phase
    • Replies: 7
    • Views: 340
    02-26-2021, 03:08 PM Go to last post
  8. OT: Gurus on NiCad battery reconditioning ?

    Started by rons, 02-15-2021 09:29 AM
    battery, charge, circuit, measurable, voltage
    • Replies: 7
    • Views: 530
    02-25-2021, 05:48 PM Go to last post
  9. Need 460v 3 phase transformer.

    Started by DanASM, 02-24-2021 03:24 PM
    15kva, 460v, phase, sell, wired
    • Replies: 2
    • Views: 189
    02-24-2021, 04:10 PM Go to last post
    • Replies: 15
    • Views: 736
    02-24-2021, 02:54 PM Go to last post
  10. Hitachi ProDriveNext software

    Started by rbmgf7, 02-21-2021 09:39 AM
    cable, file, hitachi, software, usb
    • Replies: 2
    • Views: 147
    02-21-2021, 02:06 PM Go to last post
  11. CNC retrofit power wiring

    Started by rbmgf7, 01-31-2021 05:28 PM
    fine, leg, power, pull, supply
    • Replies: 10
    • Views: 783
    02-21-2021, 12:28 PM Go to last post
    • Replies: 1
    • Views: 225
    02-21-2021, 02:00 AM Go to last post
  12. High voltage leg on PP rotary 7.5hp

    Started by Toms Wheels, 02-17-2021 02:57 PM
    fault, leg, rotary, vfds, voltage
    • Replies: 7
    • Views: 382
    02-18-2021, 07:20 PM Go to last post
  13. How do older Phase Perfects usually die?

    Started by SND, 01-31-2021 06:06 AM
    10hp, day, die, noticed, unit
    • Replies: 9
    • Views: 636
    02-18-2021, 06:30 AM Go to last post
  14. Cool Haas-Kamp conversion for Miller CP-300, and CP-302 200-230-460

    Started by DaveKamp, 10-14-2018 11:29 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 74
    • Views: 15,793
    02-17-2021, 09:43 AM Go to last post
  15. Switch question for the electrical gurus...

    Started by tobnpr, 02-11-2021 05:06 PM
    light, motor, pinout, pins, switch
    • Replies: 8
    • Views: 569
    02-13-2021, 03:57 PM Go to last post
  16. Boyer-Shultz 220v to 22v 3 Phase wiring help

    Started by mickkell, 02-11-2021 01:04 PM
    220v, coming, phase, problem, tag
    • Replies: 2
    • Views: 190
    02-11-2021, 04:59 PM Go to last post
  17. RPC interlock and Mazak SQT Lathe

    Started by madmachinst, 02-10-2021 08:18 PM
    interlock, lathe, mazak, rpc, sqt
    • Replies: 0
    • Views: 143
    02-10-2021, 08:18 PM Go to last post
  18. OT - Well pump VFD or soft start or ???

    Started by fish123, 02-08-2021 06:42 PM
    box, control, load, pump, start
    • Replies: 10
    • Views: 507
    02-10-2021, 07:48 PM Go to last post
  19. Thermal overload breaker thred size help

    Started by Froneck, 02-06-2021 08:07 PM
    1mm, listed, pitch, size, thread
    • Replies: 9
    • Views: 415
    02-09-2021, 04:35 PM Go to last post
  20. Rotary Phase Converter Amperage Requirements

    Started by jdeere620, 02-05-2021 10:21 PM
    converter, motor, phase, start, wired
    • Replies: 15
    • Views: 889
    02-08-2021, 11:27 AM Go to last post
  21. Rotation of idler motor on RFC.

    Started by Don Gitzel, 02-01-2021 09:55 AM
    idler, motor, pass, rfc, rotation
    • Replies: 4
    • Views: 401
    02-02-2021, 02:45 PM Go to last post
  22. High Current Draw from RPC

    Started by Cleetis, 01-30-2021 02:39 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,181
    02-02-2021, 02:48 AM Go to last post
  23. Recommend a good Terminal Barrier for a newbie

    Started by Chuck Evans, 01-30-2021 06:07 PM
    barrier, circuit, control, terminal, type
    • Replies: 10
    • Views: 560
    02-02-2021, 01:26 AM Go to last post
  24. 15hp 208/416 motor on 240v RPC?

    Started by Rob F., 02-01-2021 02:43 PM
    • Replies: 4
    • Views: 319
    02-01-2021, 10:40 PM Go to last post
    • Replies: 14
    • Views: 8,759
    02-01-2021, 10:46 AM Go to last post
  25. Anderson 7.5hp box with 3hp idler ok?

    Started by tonystoolroom, 02-01-2021 12:59 AM
    3hp, anderson, idler, problem, ran
    • Replies: 2
    • Views: 248
    02-01-2021, 09:42 AM Go to last post
  26. DC alternative to phase converter?

    Started by Garwood, 01-27-2021 12:21 PM
    3 Pages
    1 2 3
    drive, phase, power, run, spindle
    • Replies: 52
    • Views: 1,965
    02-01-2021, 12:58 AM Go to last post
  27. Combination RPC 5hp and 20hp idlers

    Started by Ferroequinologis, 12-13-2020 02:24 PM
    • Replies: 17
    • Views: 1,289
    01-31-2021, 09:11 AM Go to last post
  28. Variable Speed Motor in Lathe

    Started by GeorgiaDoc, 01-29-2021 10:23 PM
    lathe, motor, speed, variable, vfd
    • Replies: 19
    • Views: 946
    01-30-2021, 09:54 PM Go to last post
    • Replies: 4
    • Views: 312
    01-30-2021, 08:06 PM Go to last post
  29. Need help with "low power" 5 hp Saylor Beall 704 compressor

    Started by shepherm, 01-24-2021 03:34 PM
    3 Pages
    1 2 3
    compressor, motor, ohm, search, wire
    • Replies: 41
    • Views: 1,009
    01-29-2021, 11:30 PM Go to last post
  30. Motor start capacitor size

    Started by Don Gitzel, 01-28-2021 05:20 PM
    capacitor, capacitors, job, size, start
    • Replies: 7
    • Views: 402
    01-29-2021, 05:49 PM Go to last post
  31. Rotary phase converter VS VFD

    Started by jappietoutou, 01-22-2021 12:33 PM
    2 Pages
    1 2
    240v, 575v, point, rpc, works
    • Replies: 27
    • Views: 1,339
    01-29-2021, 04:35 PM Go to last post

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