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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: 427,866
    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: 2,755
    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: 16,109
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 9,351
    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: 13,386
    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: 21,476
    02-23-2013, 10:31 AM Go to last post
  1. Rotary Phase Converter Starting problems...but only sometimes.

    Started by condition001, 05-03-2021 07:25 PM
    2 Pages
    1 2
    phase converter, rotor lock, rpc, single-phasing, won't start
    • Replies: 23
    • Views: 930
    05-17-2021, 10:19 PM Go to last post
  2. Contactorless cp-302 single phase conversion

    Started by Taylor.w.m, 04-06-2019 09:07 AM
    contactorless, cp-302, i’ve, phase, read
    • Replies: 3
    • Views: 1,007
    05-17-2021, 05:13 PM Go to last post
  3. Compressor requires symmetrical 3-phase power?

    Started by Palak, 05-14-2021 11:22 AM
    3-phase, compressor, high-leg, power, symmetrical
    • Replies: 11
    • Views: 481
    05-16-2021, 07:14 PM Go to last post
    • Replies: 3
    • Views: 166
    05-16-2021, 02:35 PM Go to last post
    • Replies: 16
    • Views: 580
    05-15-2021, 07:55 PM Go to last post
    • Replies: 14
    • Views: 458
    05-15-2021, 01:05 PM Go to last post
    • Replies: 17
    • Views: 12,153
    05-14-2021, 12:47 AM Go to last post
  4. What color wire guide do you use ?

    Started by rons, 05-06-2021 01:29 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 962
    05-13-2021, 11:01 AM Go to last post
  5. Help Needed Sizing Transformer & RPC Question

    Started by Kirt, 05-13-2021 09:30 AM
    comments, rpc, speed, transformer, volt
    • Replies: 0
    • Views: 95
    05-13-2021, 09:30 AM Go to last post
  6. 2hp Bridgeport - VFD vs Static phase converter

    Started by dstig, 05-10-2021 01:10 AM
    converter, options, power, static, vfd
    • Replies: 19
    • Views: 461
    05-11-2021, 12:00 AM Go to last post
  7. PAM-300 problem

    Started by jstef, 05-08-2021 03:42 PM
    milling machine, pam-300, phase converter, phase-a-matic, static
    • Replies: 2
    • Views: 216
    05-09-2021, 01:29 PM Go to last post
  8. Potential Relay Sticking

    Started by Henruu, 05-08-2021 03:50 PM
    caps, neutral, potential, relay, switch
    • Replies: 5
    • Views: 310
    05-09-2021, 09:42 AM Go to last post
  9. Sizing supplemental circuit breaker for 220v Power Feed

    Started by PreciseHack, 05-02-2021 09:07 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 852
    05-07-2021, 08:28 AM Go to last post
  10. Petbow welder generator

    Started by cv2607, 05-03-2021 10:33 PM
    • Replies: 2
    • Views: 306
    05-04-2021, 04:49 AM Go to last post
    • Replies: 11
    • Views: 394
    05-03-2021, 02:17 PM Go to last post
    • Replies: 11
    • Views: 458
    05-03-2021, 10:27 AM Go to last post
  11. SPDT potential relay

    Started by madmachinst, 05-03-2021 06:40 AM
    coil, path, potential, relay, spdt
    • Replies: 0
    • Views: 142
    05-03-2021, 06:40 AM Go to last post
  12. Low Voltage Alarm on fanuc 10 T SVOO^

    Started by ernieflash, 05-02-2021 09:18 AM
    converter, line, low, machine, running
    • Replies: 0
    • Views: 133
    05-02-2021, 09:18 AM Go to last post
  13. Neutral awg size for Auto transformer

    Started by CosmosK, 04-30-2021 12:34 PM
    • Replies: 8
    • Views: 434
    05-02-2021, 03:34 AM Go to last post
  14. Will a 10 HP RPC burn up a 1.5 HP Grinder?

    Started by swatkins, 04-28-2021 11:46 PM
    grinder, machines, motor, rpc, started
    • Replies: 16
    • Views: 687
    05-01-2021, 10:26 PM Go to last post
  15. Senior Moment. Can't rem eber what this device is called.

    Started by alphonso, 04-16-2021 03:48 PM
    2 Pages
    1 2
    • Replies: 33
    • Views: 1,700
    05-01-2021, 09:31 AM Go to last post
  16. Difficulty in understanding schematic symbol

    Started by alphonso, 04-22-2021 04:01 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,075
    04-30-2021, 09:18 AM Go to last post
  17. Fuji VFD shutting down-special installation

    Started by flylo31, 04-09-2021 08:36 AM
    circuit, great, problem, shuts, vfd
    • Replies: 15
    • Views: 569
    04-30-2021, 08:27 AM Go to last post
  18. allen bradley 160s-aa04nsf1 help requested

    Started by techymechy, 04-25-2021 10:35 AM
    • Replies: 9
    • Views: 501
    04-29-2021, 07:12 PM Go to last post
  19. Tapping on Bridgeport with RPC

    Started by zr1nsx, 04-28-2021 11:08 AM
    direction, reversing, rpm, spindle, tapping
    • Replies: 10
    • Views: 409
    04-29-2021, 10:52 AM Go to last post
  20. Using transformer at half its rated voltage (both pri and sec)

    Started by JasonPAtkins, 09-05-2019 09:13 PM
    2 Pages
    1 2
    pri, sec, transform, transformer, transformers
    • Replies: 27
    • Views: 3,853
    04-28-2021, 05:13 PM Go to last post
  21. Sine wave output VFD

    Started by Strostkovy, 04-25-2021 04:49 PM
    line, output, sine, vfd, wave
    • Replies: 13
    • Views: 538
    04-28-2021, 04:57 PM Go to last post
  22. 3 phase wiring question

    Started by henrylr, 04-11-2021 10:17 PM
    3 Pages
    1 2 3
    cable, connected, end, phase, wires
    • Replies: 45
    • Views: 2,193
    04-27-2021, 03:58 PM Go to last post
    • Replies: 0
    • Views: 168
    04-27-2021, 03:32 PM Go to last post
  23. 440V-460V-480V??? What gives??

    Started by Rick Rowlands, 05-18-2006 05:43 PM
    • Replies: 16
    • Views: 63,351
    04-27-2021, 09:30 AM Go to last post
  24. Converter identification

    Started by Billyboyr66, 04-18-2021 06:21 PM
    can’t, converter, missing, unit, work
    • Replies: 5
    • Views: 480
    04-26-2021, 01:48 PM Go to last post
  25. VFD for 15hp polar air compressor 3 phase 230v 60hz 42amp

    Started by e30allday, 02-17-2021 11:35 AM
    2 Pages
    1 2
    15hp polar air compressor, company, model, phase, vfd 1 phase to 3 phase
    • Replies: 20
    • Views: 1,173
    04-26-2021, 11:55 AM Go to last post
  26. Hitachi SJ-P1 VFD: Overcurrent at low frequencies. Fine at higher

    Started by rbmgf7, 04-13-2021 07:25 PM
    2 Pages
    1 2
    • Replies: 24
    • Views: 1,011
    04-23-2021, 03:07 PM Go to last post
  27. Phase converter sizing

    Started by Frenchy, 04-22-2021 02:42 PM
    5hp, converter, motor, phase, wondering
    • Replies: 7
    • Views: 497
    04-23-2021, 11:46 AM Go to last post
  28. Phase rotation meter what's the purpose

    Started by bob, 04-09-2021 08:42 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 1,228
    04-22-2021, 08:45 PM Go to last post
    • Replies: 6
    • Views: 313
    04-22-2021, 08:34 PM Go to last post
    • Replies: 11
    • Views: 552
    04-22-2021, 04:15 AM Go to last post
  29. 480 volt transformer tripping breaker

    Started by M. Moore, 04-09-2021 11:14 AM
    2 Pages
    1 2
    amp, breaker, time, transformer, volt
    • Replies: 36
    • Views: 1,249
    04-20-2021, 11:37 PM Go to last post
    • Replies: 17
    • Views: 894
    04-20-2021, 07:02 AM Go to last post
  30. 50 HP rotary, "To pony or not to Pony ?" That........

    Started by madmachinst, 04-01-2021 07:10 PM
    2 Pages
    1 2
    • Replies: 30
    • Views: 1,533
    04-20-2021, 06:55 AM Go to last post

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