Page 1 of 239 1231151101 ... LastLast
Threads 1 to 40 of 9553

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: 427,743
    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: 2,748
    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: 16,074
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 9,337
    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: 13,372
    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: 21,467
    02-23-2013, 10:31 AM Go to last post
    • Replies: 15
    • Views: 459
    05-15-2021, 06:23 AM Go to last post
  1. Compressor requires symmetrical 3-phase power?

    Started by Palak, 05-14-2021 11:22 AM
    3-phase, compressor, high-leg, power, symmetrical
    • Replies: 5
    • Views: 174
    05-14-2021, 07:03 PM Go to last post
    • Replies: 8
    • Views: 346
    05-14-2021, 05:44 PM Go to last post
    • Replies: 17
    • Views: 12,121
    05-14-2021, 12:47 AM Go to last post
  2. What color wire guide do you use ?

    Started by rons, 05-06-2021 01:29 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 937
    05-13-2021, 11:01 AM Go to last post
  3. Help Needed Sizing Transformer & RPC Question

    Started by Kirt, 05-13-2021 09:30 AM
    comments, rpc, speed, transformer, volt
    • Replies: 0
    • Views: 70
    05-13-2021, 09:30 AM Go to last post
  4. 2hp Bridgeport - VFD vs Static phase converter

    Started by dstig, 05-10-2021 01:10 AM
    converter, options, power, static, vfd
    • Replies: 19
    • Views: 426
    05-11-2021, 12:00 AM Go to last post
  5. 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: 207
    05-09-2021, 01:29 PM Go to last post
  6. Potential Relay Sticking

    Started by Henruu, 05-08-2021 03:50 PM
    caps, neutral, potential, relay, switch
    • Replies: 5
    • Views: 289
    05-09-2021, 09:42 AM Go to last post
  7. Sizing supplemental circuit breaker for 220v Power Feed

    Started by PreciseHack, 05-02-2021 09:07 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 834
    05-07-2021, 08:28 AM Go to last post
    • Replies: 18
    • Views: 677
    05-07-2021, 07:09 AM Go to last post
  8. Petbow welder generator

    Started by cv2607, 05-03-2021 10:33 PM
    • Replies: 2
    • Views: 292
    05-04-2021, 04:49 AM Go to last post
    • Replies: 11
    • Views: 382
    05-03-2021, 02:17 PM Go to last post
    • Replies: 11
    • Views: 451
    05-03-2021, 10:27 AM Go to last post
  9. SPDT potential relay

    Started by madmachinst, 05-03-2021 06:40 AM
    coil, path, potential, relay, spdt
    • Replies: 0
    • Views: 136
    05-03-2021, 06:40 AM Go to last post
  10. 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: 126
    05-02-2021, 09:18 AM Go to last post
  11. Neutral awg size for Auto transformer

    Started by CosmosK, 04-30-2021 12:34 PM
    • Replies: 8
    • Views: 420
    05-02-2021, 03:34 AM Go to last post
  12. 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: 668
    05-01-2021, 10:26 PM Go to last post
  13. 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: 1,682
    05-01-2021, 09:31 AM Go to last post
  14. Difficulty in understanding schematic symbol

    Started by alphonso, 04-22-2021 04:01 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,062
    04-30-2021, 09:18 AM Go to last post
  15. Fuji VFD shutting down-special installation

    Started by flylo31, 04-09-2021 08:36 AM
    circuit, great, problem, shuts, vfd
    • Replies: 15
    • Views: 562
    04-30-2021, 08:27 AM Go to last post
  16. allen bradley 160s-aa04nsf1 help requested

    Started by techymechy, 04-25-2021 10:35 AM
    • Replies: 9
    • Views: 488
    04-29-2021, 07:12 PM Go to last post
  17. Tapping on Bridgeport with RPC

    Started by zr1nsx, 04-28-2021 11:08 AM
    direction, reversing, rpm, spindle, tapping
    • Replies: 10
    • Views: 395
    04-29-2021, 10:52 AM Go to last post
  18. 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: 3,832
    04-28-2021, 05:13 PM Go to last post
  19. Sine wave output VFD

    Started by Strostkovy, 04-25-2021 04:49 PM
    line, output, sine, vfd, wave
    • Replies: 13
    • Views: 527
    04-28-2021, 04:57 PM Go to last post
  20. 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: 2,170
    04-27-2021, 03:58 PM Go to last post
    • Replies: 0
    • Views: 160
    04-27-2021, 03:32 PM Go to last post
  21. 440V-460V-480V??? What gives??

    Started by Rick Rowlands, 05-18-2006 05:43 PM
    • Replies: 16
    • Views: 63,297
    04-27-2021, 09:30 AM Go to last post
  22. Converter identification

    Started by Billyboyr66, 04-18-2021 06:21 PM
    can’t, converter, missing, unit, work
    • Replies: 5
    • Views: 475
    04-26-2021, 01:48 PM Go to last post
  23. 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: 1,150
    04-26-2021, 11:55 AM Go to last post
  24. 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: 1,003
    04-23-2021, 03:07 PM Go to last post
  25. Phase converter sizing

    Started by Frenchy, 04-22-2021 02:42 PM
    5hp, converter, motor, phase, wondering
    • Replies: 7
    • Views: 490
    04-23-2021, 11:46 AM Go to last post
  26. Phase rotation meter what's the purpose

    Started by bob, 04-09-2021 08:42 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 1,207
    04-22-2021, 08:45 PM Go to last post
    • Replies: 6
    • Views: 307
    04-22-2021, 08:34 PM Go to last post
    • Replies: 11
    • Views: 540
    04-22-2021, 04:15 AM Go to last post
  27. 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: 1,238
    04-20-2021, 11:37 PM Go to last post
    • Replies: 17
    • Views: 884
    04-20-2021, 07:02 AM Go to last post
  28. 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: 1,525
    04-20-2021, 06:55 AM Go to last post
    • Replies: 5
    • Views: 476
    04-20-2021, 04:19 AM Go to last post
  29. burned up motor in older ENCO mill

    Started by Flanders, 04-12-2021 12:00 PM
    • Replies: 1
    • Views: 439
    04-18-2021, 11:23 PM 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
  •