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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: 424,018
    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: 2,437
    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: 15,383
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 9,035
    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: 13,063
    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: 21,175
    02-23-2013, 10:31 AM Go to last post
  1. OT: Gurus on NiCad battery reconditioning ?

    Started by rons, 02-15-2021 09:29 AM
    battery, charge, circuit, measurable, voltage
    • Replies: 7
    • Views: 483
    02-25-2021, 05:48 PM Go to last post
  2. 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: 6
    • Views: 282
    02-25-2021, 11:38 AM Go to last post
  3. Question for VFD experts.

    Started by 9100, 02-24-2021 06:02 PM
    drives, manual, panel, remote, speed
    • Replies: 2
    • Views: 169
    02-25-2021, 12:34 AM Go to last post
  4. Need 460v 3 phase transformer.

    Started by DanASM, 02-24-2021 03:24 PM
    15kva, 460v, phase, sell, wired
    • Replies: 2
    • Views: 141
    02-24-2021, 04:10 PM Go to last post
    • Replies: 15
    • Views: 664
    02-24-2021, 02:54 PM Go to last post
    • Replies: 3
    • Views: 175
    02-23-2021, 10:10 PM Go to last post
  5. Square D Motor Starter coil failure

    Started by TFPace, 02-20-2021 08:16 PM
    480vac, coil, motor, square, starter
    • Replies: 10
    • Views: 394
    02-22-2021, 11:39 AM Go to last post
    • Replies: 12
    • Views: 509
    02-22-2021, 10:40 AM Go to last post
  6. Sizing VFD for Nuttall Lathe 1phase to 3 phase

    Started by HobbyMaker, 02-05-2021 10:15 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,107
    02-22-2021, 01:38 AM Go to last post
  7. Hitachi ProDriveNext software

    Started by rbmgf7, 02-21-2021 09:39 AM
    cable, file, hitachi, software, usb
    • Replies: 2
    • Views: 132
    02-21-2021, 02:06 PM Go to last post
  8. CNC retrofit power wiring

    Started by rbmgf7, 01-31-2021 05:28 PM
    fine, leg, power, pull, supply
    • Replies: 10
    • Views: 762
    02-21-2021, 12:28 PM Go to last post
    • Replies: 1
    • Views: 209
    02-21-2021, 02:00 AM Go to last post
  9. 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: 365
    02-18-2021, 07:20 PM Go to last post
  10. How do older Phase Perfects usually die?

    Started by SND, 01-31-2021 06:06 AM
    10hp, day, die, noticed, unit
    • Replies: 9
    • Views: 605
    02-18-2021, 06:30 AM Go to last post
  11. 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: 15,693
    02-17-2021, 09:43 AM Go to last post
  12. Switch question for the electrical gurus...

    Started by tobnpr, 02-11-2021 05:06 PM
    light, motor, pinout, pins, switch
    • Replies: 8
    • Views: 557
    02-13-2021, 03:57 PM Go to last post
  13. 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: 182
    02-11-2021, 04:59 PM Go to last post
  14. RPC interlock and Mazak SQT Lathe

    Started by madmachinst, 02-10-2021 08:18 PM
    interlock, lathe, mazak, rpc, sqt
    • Replies: 0
    • Views: 126
    02-10-2021, 08:18 PM Go to last post
  15. 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: 492
    02-10-2021, 07:48 PM Go to last post
  16. Thermal overload breaker thred size help

    Started by Froneck, 02-06-2021 08:07 PM
    1mm, listed, pitch, size, thread
    • Replies: 9
    • Views: 406
    02-09-2021, 04:35 PM Go to last post
  17. Rotary Phase Converter Amperage Requirements

    Started by jdeere620, 02-05-2021 10:21 PM
    converter, motor, phase, start, wired
    • Replies: 15
    • Views: 851
    02-08-2021, 11:27 AM Go to last post
  18. Rotation of idler motor on RFC.

    Started by Don Gitzel, 02-01-2021 09:55 AM
    idler, motor, pass, rfc, rotation
    • Replies: 4
    • Views: 389
    02-02-2021, 02:45 PM Go to last post
  19. High Current Draw from RPC

    Started by Cleetis, 01-30-2021 02:39 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,157
    02-02-2021, 02:48 AM Go to last post
  20. 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: 541
    02-02-2021, 01:26 AM Go to last post
  21. 15hp 208/416 motor on 240v RPC?

    Started by Rob F., 02-01-2021 02:43 PM
    • Replies: 4
    • Views: 303
    02-01-2021, 10:40 PM Go to last post
    • Replies: 14
    • Views: 8,727
    02-01-2021, 10:46 AM Go to last post
  22. 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: 238
    02-01-2021, 09:42 AM Go to last post
  23. 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: 1,949
    02-01-2021, 12:58 AM Go to last post
  24. Combination RPC 5hp and 20hp idlers

    Started by Ferroequinologis, 12-13-2020 02:24 PM
    • Replies: 17
    • Views: 1,282
    01-31-2021, 09:11 AM Go to last post
  25. Variable Speed Motor in Lathe

    Started by GeorgiaDoc, 01-29-2021 10:23 PM
    lathe, motor, speed, variable, vfd
    • Replies: 19
    • Views: 913
    01-30-2021, 09:54 PM Go to last post
    • Replies: 4
    • Views: 303
    01-30-2021, 08:06 PM Go to last post
  26. 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: 993
    01-29-2021, 11:30 PM Go to last post
  27. Motor start capacitor size

    Started by Don Gitzel, 01-28-2021 05:20 PM
    capacitor, capacitors, job, size, start
    • Replies: 7
    • Views: 384
    01-29-2021, 05:49 PM Go to last post
  28. 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: 1,299
    01-29-2021, 04:35 PM Go to last post
    • Replies: 13
    • Views: 586
    01-28-2021, 08:29 PM Go to last post
  29. Hobart Arc Master 500 Questions

    Started by elkvis, 01-11-2021 02:05 PM
    • Replies: 2
    • Views: 419
    01-28-2021, 01:01 AM Go to last post
  30. VFD JOG Button Question ...

    Started by AmericanMaker, 01-27-2021 09:08 PM
    button, jog, vfd, vfd 3 phase, vfd input wiring
    • Replies: 1
    • Views: 253
    01-27-2021, 10:15 PM Go to last post
  31. "Low Voltage" Error on VFD

    Started by Domodude17, 01-25-2021 04:05 PM
    fine, phase, power, vfd, voltage
    • Replies: 3
    • Views: 391
    01-25-2021, 11:48 PM Go to last post
    • Replies: 11
    • Views: 625
    01-25-2021, 08:55 PM Go to last post
    • Replies: 4
    • Views: 426
    01-25-2021, 01:17 PM Go to last post

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