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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. Brain Scratcher for the Sparkies Here....

    Started by Ox, 08-13-2018 07:55 PM
    2 Pages
    1 2
    buss, compressor, reason, starter, times
    • Replies: 32
    • Views: 1,837
    08-14-2018, 09:40 PM Go to last post
    • Replies: 1
    • Views: 814
    08-12-2018, 11:18 PM Go to last post
  2. two pots for one VFD

    Started by JoshNZ, 08-07-2018 08:34 PM
    2 Pages
    1 2
    buttons, pot, side, start/stop, vfd
    • Replies: 32
    • Views: 2,028
    08-12-2018, 03:52 PM Go to last post
  3. Another Drum Switch Wiring GE CR102B

    Started by ProSeriesRacing, 08-09-2018 08:40 PM
    • Replies: 3
    • Views: 708
    08-12-2018, 05:10 AM Go to last post
  4. Successful Haas Kamp coversion Hobart RC-300

    Started by Deerehauler, 01-09-2017 11:01 PM
    article, follow, kamp, link, read
    • Replies: 8
    • Views: 1,225
    08-10-2018, 01:02 PM Go to last post
  5. Identifying 3 phase motor for RPC project

    Started by Deerehauler, 05-22-2018 11:13 PM
    2 Pages
    1 2
    • Replies: 36
    • Views: 2,951
    08-09-2018, 10:52 PM Go to last post
  6. 7k rpm from vfd?

    Started by tinrat, 08-09-2018 03:50 PM
    cycles, phase, rpm, rpms, vfd
    • Replies: 3
    • Views: 472
    08-09-2018, 06:17 PM Go to last post
  7. Thinking about getting a megger

    Started by Wade C, 08-08-2018 01:34 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 1,423
    08-09-2018, 07:36 AM Go to last post
  8. Two small RPC's or one bigger one ?

    Started by clampman, 12-24-2017 09:38 PM
    1/2, air, compressor, motor, run
    • Replies: 13
    • Views: 2,052
    08-08-2018, 10:09 PM Go to last post
  9. Exclamation Help with building 3 phase converter box

    Started by Jack Wilson, 08-04-2018 09:39 AM
    • Replies: 1
    • Views: 584
    08-04-2018, 10:19 AM Go to last post
  10. Will 1 VFD driving 2 motors act like differential?

    Started by svs, 07-31-2018 07:37 AM
    2 Pages
    1 2
    motors, tire, system, tread, vfd
    • Replies: 35
    • Views: 1,797
    08-02-2018, 06:23 PM Go to last post
    • Replies: 6
    • Views: 780
    08-02-2018, 10:48 AM Go to last post
  11. Do 230V single phase input / 460V three phase drives exist?

    Started by 86turbodsl, 07-29-2018 06:11 PM
    2 Pages
    1 2
    beast, exist, perfect, phase, type
    • Replies: 27
    • Views: 1,506
    08-01-2018, 07:19 AM Go to last post
  12. Help with kva, voltage, amps

    Started by welderboyjk, 07-30-2018 02:46 PM
    amps, figuring, kva, load, phase
    • Replies: 10
    • Views: 669
    07-30-2018, 09:21 PM Go to last post
  13. yaskawa varispeed 626vm2

    Started by jackvilli, 07-25-2018 08:17 AM
    drive, fault, rpm, spindle, time.this
    • Replies: 2
    • Views: 451
    07-29-2018, 05:57 AM Go to last post
  14. 7.5 HP Phase Conversion VFD

    Started by J-Head, 07-17-2018 09:51 AM
    • Replies: 11
    • Views: 1,890
    07-26-2018, 08:56 PM Go to last post
    • Replies: 0
    • Views: 382
    07-26-2018, 06:08 PM Go to last post
  15. Motor still noisy with shielded cable

    Started by user322, 07-13-2018 08:05 PM
    • Replies: 4
    • Views: 860
    07-26-2018, 12:59 PM Go to last post
  16. Why different voltage on RFD generated leg?

    Started by beeser, 07-23-2018 04:42 PM
    generated, leg, reason, rfd, voltage
    • Replies: 8
    • Views: 596
    07-23-2018, 08:47 PM Go to last post
  17. Haas-Kemp conversion on Linde VI-253

    Started by tomjelly, 06-03-2016 12:56 PM
    • Replies: 14
    • Views: 3,778
    07-23-2018, 07:14 AM Go to last post
  18. Question NEC code questions, my RPC Build

    Started by 5ubtle, 07-21-2018 05:13 PM
    • Replies: 3
    • Views: 542
    07-22-2018, 07:31 PM Go to last post
  19. Second motor setup on Hitachi WJ200

    Started by mikey553, 07-17-2018 06:38 AM
    • Replies: 8
    • Views: 1,301
    07-21-2018, 09:45 AM Go to last post
    • Replies: 19
    • Views: 1,332
    07-19-2018, 03:20 PM Go to last post
  20. transformer / rotary phase converter questions

    Started by rb1, 12-17-2010 07:31 AM
    • Replies: 15
    • Views: 13,817
    07-16-2018, 06:22 PM Go to last post
  21. Need to power Okuma MC40 va- what HP converter

    Started by Sevo, 07-15-2018 12:55 PM
    • Replies: 0
    • Views: 413
    07-15-2018, 12:55 PM Go to last post
  22. New to phase convertors

    Started by TimH, 07-14-2018 08:07 AM
    convertors, machine, motor, phase, victor
    • Replies: 2
    • Views: 580
    07-14-2018, 02:10 PM Go to last post
  23. Delta mains service wiring to a Wye Transformer

    Started by dgcope, 07-12-2018 01:49 AM
    delta, service, transformer, transformers, wye-wye
    • Replies: 8
    • Views: 980
    07-14-2018, 06:11 AM Go to last post
    • Replies: 5
    • Views: 1,117
    07-14-2018, 12:21 AM Go to last post
  24. old forklift charger drawing too much current?

    Started by Drd, 07-12-2018 04:03 PM
    240v, amps, charger, ferroresonant 48v, forklift battery
    • Replies: 3
    • Views: 633
    07-13-2018, 08:43 PM Go to last post
    • Replies: 14
    • Views: 1,154
    07-13-2018, 11:13 AM Go to last post
  25. Powering a Bridgeport mill and Victor 1440G lathe?

    Started by beeser, 07-11-2018 11:04 PM
    amp, bridgeport, gauge, lathe, wire
    • Replies: 5
    • Views: 804
    07-12-2018, 05:37 PM Go to last post
  26. Hitachi WJ200 Question

    Started by atomarc, 05-26-2018 06:58 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,139
    07-12-2018, 12:24 PM Go to last post
  27. Load Conversion from 3-phase to Single Phase

    Started by riabma77, 07-11-2018 07:43 AM
    kva, load, perfect, phase, single
    • Replies: 0
    • Views: 409
    07-11-2018, 07:43 AM Go to last post
  28. Rochester NY: Two 3 phase motors cheap

    Started by wheels17, 07-10-2018 03:27 PM
    • Replies: 0
    • Views: 466
    07-10-2018, 03:27 PM Go to last post
  29. Help Wiring Motor - Reversing Starter

    Started by carbitz, 07-08-2018 03:18 PM
    • Replies: 6
    • Views: 801
    07-09-2018, 10:02 PM Go to last post
  30. Assistance Setting up Teco L510

    Started by superman22x, 07-08-2018 02:27 PM
    • Replies: 3
    • Views: 851
    07-09-2018, 02:06 PM Go to last post
    • Replies: 4
    • Views: 714
    07-07-2018, 09:32 AM Go to last post
    • Replies: 3
    • Views: 699
    07-06-2018, 03:03 PM Go to last post
  31. DC Motor Control

    Started by adrian, 07-06-2018 09:22 AM
    control, motor, rectifier, scr, type
    • Replies: 16
    • Views: 1,268
    07-06-2018, 02:15 PM Go to last post
  32. Using AC contactor coils with DC.

    Started by imported_brian_m, 07-04-2018 10:59 AM
    • Replies: 14
    • Views: 1,089
    07-05-2018, 01:06 PM Go to last post

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