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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. CNC, Dynamic Braking and RPC

    Started by mrogowski, 06-20-2011 04:18 AM
    • Replies: 6
    • Views: 3,306
    06-23-2011, 03:42 PM Go to last post
  2. Exclamation Is This Right? 15 transformer/20hp RPC

    Started by Waldhof, 06-01-2011 07:25 PM
    • Replies: 13
    • Views: 3,689
    06-22-2011, 08:41 PM Go to last post
  3. Quick confirmation of VFD power feed.

    Started by Miguels244, 04-10-2011 12:24 AM
    • Replies: 17
    • Views: 2,569
    06-22-2011, 11:43 AM Go to last post
  4. What is kept when using a VFD

    Started by BigBlock10, 06-20-2011 04:44 AM
    • Replies: 6
    • Views: 1,972
    06-22-2011, 07:46 AM Go to last post
  5. VFD input current

    Started by Dan L, 06-20-2011 04:36 PM
    • Replies: 2
    • Views: 1,991
    06-21-2011, 04:00 AM Go to last post
  6. Magnetic Contactor

    Started by charger19690, 06-05-2011 08:54 PM
    • Replies: 11
    • Views: 6,045
    06-20-2011, 01:45 PM Go to last post
  7. Three single phase transformers

    Started by mrriggs, 06-12-2011 09:48 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 4,865
    06-19-2011, 04:20 AM Go to last post
  8. foresee problems with 50hp PAM on 150a service?

    Started by jminer99er, 06-15-2011 09:56 AM
    • Replies: 12
    • Views: 2,830
    06-17-2011, 03:45 PM Go to last post
  9. Teco 7300 programmng

    Started by dxhall, 06-17-2011 05:23 AM
    • Replies: 0
    • Views: 1,439
    06-17-2011, 05:23 AM Go to last post
  10. FM50 VFD Jog Speed Incorrect

    Started by FrankW, 06-16-2011 12:56 AM
    • Replies: 3
    • Views: 2,698
    06-17-2011, 12:39 AM Go to last post
  11. 3-phase speed control for fan motor

    Started by W_Higgins, 06-13-2011 03:07 PM
    • Replies: 10
    • Views: 6,933
    06-16-2011, 02:41 PM Go to last post
  12. Main switch sizing for 3-Phase/RPC input.

    Started by Arthur.Marks, 06-15-2011 03:44 PM
    • Replies: 2
    • Views: 3,036
    06-15-2011, 04:18 PM Go to last post
  13. Teco FM50 VFD; a couple of newbie questions

    Started by paramedico987, 06-11-2011 02:30 PM
    • Replies: 6
    • Views: 2,662
    06-15-2011, 11:10 AM Go to last post
  14. Opinions on WNY panels?

    Started by Kilroy2k1, 06-15-2011 01:10 AM
    • Replies: 1
    • Views: 1,446
    06-15-2011, 06:24 AM Go to last post
  15. Excessive voltage on generated leg

    Started by Horseheadman, 06-08-2011 10:31 PM
    • Replies: 4
    • Views: 1,724
    06-14-2011, 10:44 AM Go to last post
  16. Use of relay with a momentary switch

    Started by W_Higgins, 06-05-2011 01:45 PM
    • Replies: 10
    • Views: 14,713
    06-13-2011, 03:01 PM Go to last post
  17. Bringing service into a shop

    Started by Wade C, 06-10-2011 03:44 PM
    • Replies: 10
    • Views: 2,230
    06-13-2011, 04:06 AM Go to last post
  18. Auto Transformer core to boost 240 v to 480v

    Started by Rock Crusher, 06-06-2011 09:38 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 6,202
    06-12-2011, 04:37 PM Go to last post
  19. calc. power consumption from elect. meter

    Started by sneed, 06-04-2011 01:46 PM
    3 Pages
    1 2 3
    • Replies: 42
    • Views: 7,327
    06-12-2011, 03:03 PM Go to last post
  20. Rambaudi mill 240 volt to 480

    Started by garcher, 06-11-2011 03:40 PM
    • Replies: 2
    • Views: 2,173
    06-12-2011, 12:13 PM Go to last post
  21. Power usage by buck/boost transformer

    Started by moonlight machine, 06-11-2011 08:51 PM
    • Replies: 1
    • Views: 1,788
    06-12-2011, 02:38 AM Go to last post
  22. Limiting in-rush amperage on motor start-up

    Started by devsterd1, 06-07-2011 03:04 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 16,961
    06-12-2011, 12:00 AM Go to last post
  23. Building RPC for 3 HP Lathe

    Started by SkyHarborCowboy, 06-06-2011 04:28 AM
    • Replies: 5
    • Views: 1,807
    06-10-2011, 02:44 PM Go to last post
  24. How do I set up Frenic VFD?

    Started by Empireweld, 06-09-2011 01:33 PM
    • Replies: 0
    • Views: 1,552
    06-09-2011, 01:33 PM Go to last post
  25. Phase A Matic

    Started by Cyclotronguy, 06-07-2011 11:57 AM
    • Replies: 4
    • Views: 2,153
    06-08-2011, 05:21 PM Go to last post
  26. DC Motor / controller Questions

    Started by hkinkade, 05-23-2011 01:13 AM
    • Replies: 1
    • Views: 2,039
    06-08-2011, 12:13 PM Go to last post
  27. Exclamation Making Sense of Inconsistency

    Started by Waldhof, 06-06-2011 05:25 PM
    • Replies: 0
    • Views: 1,308
    06-06-2011, 05:25 PM Go to last post
  28. Rpc

    Started by Cyclotronguy, 06-06-2011 02:49 PM
    • Replies: 0
    • Views: 1,349
    06-06-2011, 02:49 PM Go to last post
  29. 10 hp RPC

    Started by jbeech, 06-03-2011 05:47 PM
    • Replies: 10
    • Views: 2,973
    06-06-2011, 04:18 AM Go to last post
  30. Strange Disconnect

    Started by Ox, 06-01-2011 12:43 PM
    • Replies: 11
    • Views: 1,845
    06-05-2011, 09:52 PM Go to last post
  31. Utterly Confused

    Started by charger19690, 05-21-2011 01:20 PM
    • Replies: 9
    • Views: 2,316
    06-04-2011, 02:05 AM Go to last post
    • Replies: 6
    • Views: 4,789
    06-03-2011, 04:19 PM Go to last post
    • Replies: 3
    • Views: 2,165
    06-01-2011, 09:26 PM Go to last post
  32. Yaskawa vfd on acer mill ?'s

    Started by tater_thrower76, 05-29-2011 08:31 PM
    • Replies: 3
    • Views: 1,773
    06-01-2011, 06:17 PM Go to last post
  33. 20hp rpc

    Started by Toolles, 06-01-2011 09:08 AM
    • Replies: 1
    • Views: 1,458
    06-01-2011, 09:58 AM Go to last post
  34. Possible lathe retrofit motor?

    Started by jkilroy, 05-27-2011 08:24 PM
    • Replies: 3
    • Views: 1,843
    05-31-2011, 09:14 PM Go to last post
  35. Drat-I think this 3 Ph motor is dead?

    Started by CLANG, 05-31-2011 03:57 AM
    • Replies: 3
    • Views: 1,760
    05-31-2011, 04:20 PM Go to last post
  36. Inspector has concerns about running converters parallel

    Started by Chitty, 04-07-2011 09:38 PM
    2 Pages
    1 2
    • Replies: 30
    • Views: 5,301
    05-30-2011, 09:32 PM Go to last post
  37. VFD controlled water well pump thoughts

    Started by viper, 05-25-2011 10:08 AM
    • Replies: 6
    • Views: 20,784
    05-30-2011, 06:52 PM Go to last post
  38. redneck 3ph generator

    Started by mach 2, 04-22-2011 12:31 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 22,917
    05-30-2011, 06:34 PM Go to last post

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