Page 1 of 245 1231151101 ... LastLast
Threads 1 to 40 of 9776

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: 198
    • Views: 444,638
    11-20-2021, 06:06 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: 4,031
    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: 19,310
    08-02-2017, 04:05 PM Go to last post
    • Replies: 0
    • Views: 11,264
    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: 15,246
    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: 23,369
    02-23-2013, 10:31 AM Go to last post
  1. Two phase to three phase conversion in New Zealand

    Started by Brian Campbell, 01-11-2022 03:42 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 76
    • Views: 2,139
    01-17-2022, 04:34 PM Go to last post
    • Replies: 1
    • Views: 49
    01-17-2022, 04:09 PM Go to last post
    • Replies: 1
    • Views: 148
    01-17-2022, 01:53 PM Go to last post
  2. 3~MOT motor tag

    Started by cb1, 01-14-2022 02:30 PM
    • Replies: 2
    • Views: 296
    01-17-2022, 12:55 PM Go to last post
  3. 1 to 3 phase problem

    Started by stevet, 12-08-2021 11:20 PM
    it’s, motor, panel, phase, start
    • Replies: 15
    • Views: 931
    01-17-2022, 10:01 AM Go to last post
  4. Cut HP vs RPC HP vs Haas Spindle HP

    Started by 1032screw, 12-13-2021 01:26 PM
    breakers, machine, phase, spindle, voltage
    • Replies: 17
    • Views: 941
    01-16-2022, 10:50 PM Go to last post
  5. 2 speed motor of VFD - check my reasoning plz

    Started by Peter., 01-09-2022 01:15 PM
    • Replies: 8
    • Views: 660
    01-16-2022, 03:22 PM Go to last post
    • Replies: 1
    • Views: 143
    01-16-2022, 10:52 AM Go to last post
  6. What type of switch do I need?

    Started by josh623, 01-10-2022 12:15 PM
    connects, lol, pin, speed, switch
    • Replies: 12
    • Views: 686
    01-15-2022, 11:48 PM Go to last post
  7. Contactor Overload Relays on 2 phases

    Started by Peter from Holland, 01-13-2022 06:57 AM
    amps, failure, overload, phase, sensitivity
    • Replies: 9
    • Views: 485
    01-15-2022, 11:26 AM Go to last post
  8. Ideas on a project with a 6 hp ac motor?

    Started by fettersp, 01-12-2022 06:45 PM
    ideas, motor, rpm, spins, tank
    • Replies: 13
    • Views: 901
    01-14-2022, 12:29 AM Go to last post
  9. Interesting video about 3 phase

    Started by Froneck, 01-13-2022 11:07 AM
    anymore, fact, interesting, read, video
    • Replies: 4
    • Views: 389
    01-13-2022, 03:46 PM Go to last post
  10. Three-phase North-American UL/NSF oven in Japan

    Started by koshien, 12-26-2021 02:45 AM
    • Replies: 10
    • Views: 819
    01-13-2022, 04:02 AM Go to last post
  11. 3 phase starter circuit

    Started by madmachinst, 11-16-2021 08:39 PM
    10 Pages
    1 2 3 ... 10
    • Replies: 186
    • Views: 8,918
    01-12-2022, 05:34 PM Go to last post
    • Replies: 4
    • Views: 205
    01-12-2022, 02:42 AM Go to last post
    • Replies: 7
    • Views: 343
    01-12-2022, 01:51 AM Go to last post
    • Replies: 16
    • Views: 831
    01-11-2022, 07:28 PM Go to last post
  12. VFD failure modes...?

    Started by RG Vieira, 01-07-2022 03:51 PM
    2 Pages
    1 2
    fail, good, modes, vfd
    • Replies: 20
    • Views: 983
    01-09-2022, 03:48 PM Go to last post
  13. RPC Capacitor help

    Started by Kruzzz, 01-03-2022 06:58 PM
    idler, motor, t1t3, t2t3, voltage
    • Replies: 3
    • Views: 337
    01-09-2022, 12:00 PM Go to last post
  14. Advice On 3 Phase Power Options For My First Mill

    Started by Nust, 12-27-2021 01:30 PM
    error, motor, phase, power, vfd
    • Replies: 19
    • Views: 909
    01-06-2022, 08:07 PM Go to last post
  15. Questions about a 3 Phase motor for an RPC

    Started by Lonster, 12-16-2021 03:04 PM
    2 Pages
    1 2
    button, circuit, motor, rpc, start
    • Replies: 21
    • Views: 1,711
    01-06-2022, 04:14 PM Go to last post
    • Replies: 1
    • Views: 226
    01-06-2022, 07:59 AM Go to last post
    • Replies: 9
    • Views: 4,888
    01-05-2022, 10:40 PM Go to last post
  16. RPC transformer sizing ratio or rules of thumb

    Started by EW57, 01-05-2022 07:15 PM
    • Replies: 1
    • Views: 417
    01-05-2022, 07:31 PM Go to last post
  17. Which transformer to get to step up 240v to 480v?

    Started by Jaxian, 01-01-2022 08:22 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 1,091
    01-04-2022, 08:14 PM Go to last post
    • Replies: 35
    • Views: 1,634
    01-04-2022, 11:15 AM Go to last post
    • Replies: 0
    • Views: 204
    01-03-2022, 02:58 PM Go to last post
    • Replies: 2
    • Views: 256
    01-01-2022, 07:16 PM Go to last post
  18. power consumption of light bulbs

    Started by dian, 01-01-2022 10:45 AM
    amps, bulbs, consume, power, watts
    • Replies: 7
    • Views: 449
    01-01-2022, 05:21 PM Go to last post
  19. Lincoln Idealarc R3S-325 to single phase

    Started by minipower, 07-27-2021 09:32 PM
    calculator, capacitor, impedance, phase, resistance
    • Replies: 8
    • Views: 804
    12-30-2021, 02:04 PM Go to last post
  20. 40HP RPC bearing size

    Started by claya, 12-29-2021 01:22 AM
    40hp, bearing, motor, rpc, size
    • Replies: 5
    • Views: 471
    12-30-2021, 09:46 AM Go to last post
    • Replies: 11
    • Views: 3,411
    12-28-2021, 03:41 PM Go to last post
  21. 3ph POWERMATIC 1150 (How to wire vfd with mag starter)

    Started by Grnmtntri11, 03-22-2020 06:15 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 2,913
    12-27-2021, 01:45 PM Go to last post
  22. Single phase from 3ph panel W/ wild leg

    Started by dkmc, 12-22-2021 08:23 AM
    leg, panel, phase, single, wild
    • Replies: 19
    • Views: 1,618
    12-24-2021, 06:25 PM Go to last post
    • Replies: 43
    • Views: 2,160
    12-21-2021, 09:56 PM Go to last post
  23. 15x30 leblond vfd help 1963 servol shift

    Started by Kruzzz, 12-21-2021 12:29 AM
    15x30, 3ph, lathe, vfd, wire
    • Replies: 4
    • Views: 546
    12-21-2021, 11:45 AM Go to last post
  24. Noisy "Light" Pole?

    Started by Ox, 10-25-2018 09:43 PM
    3 Pages
    1 2 3
    • Replies: 56
    • Views: 6,311
    12-21-2021, 09:33 AM Go to last post
  25. How worried should I be about "dirty" power for a CNC?

    Started by DocsMachine, 12-09-2021 04:33 PM
    2 Pages
    1 2
    basically, cnc, feed, machine, native
    • Replies: 20
    • Views: 1,283
    12-21-2021, 12:30 AM Go to last post
  26. How to De-Energize transformer?

    Started by Chuck Evans, 12-08-2021 05:40 PM
    3 Pages
    1 2 3
    • Replies: 59
    • Views: 3,112
    12-20-2021, 09:40 AM Go to last post
  27. 3 phase soft start application

    Started by cg285, 02-13-2020 11:03 AM
    10 Pages
    1 2 3 ... 10
    • Replies: 187
    • Views: 15,427
    12-17-2021, 05:05 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
  •