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Tag: vfd

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  1. DC Bus Conductor Sizing

    Started by aNerdyEngineer on 01-15-19
    conductor, dc bus, sizing, vfd
    • Replies: 6
    • Views: 175
    Last Post: Yesterday 01:07 AM
    by drcampbell  Go to last post

    Forum:
    NEC

    • Replies: 4
    • Views: 527
    Last Post: 11-30-18 03:18 PM
    by GoldDigger  Go to last post
  2. 4160 Isolation Transformer

    Started by spikes2020 on 11-29-17
    3 Pages
    1 2 3
    4160 circut, isolation transformer, transformer, vfd, vfd feeder
    • Replies: 21
    • Views: 3,460
    Last Post: 01-03-18 03:21 PM
    by Jraef  Go to last post
  3. Running master/slave VFD

    Started by adeebmostapha on 10-09-17
    2 Pages
    1 2
    commisioning, siemens, v20, vfd, wiring methods
    • Replies: 14
    • Views: 2,185
    Last Post: 10-10-17 04:05 PM
    by Besoeker  Go to last post
    • Replies: 22
    • Views: 3,960
    Last Post: 04-18-17 04:59 PM
    by Jraef  Go to last post
    • Replies: 7
    • Views: 1,851
    Last Post: 03-24-17 08:01 PM
    by Jraef  Go to last post
  4. VFD or not to D....that is the question

    Started by Open Neutral on 01-13-17
    4 Pages
    1 2 3 ... 4
    milling machine, vfd
    • Replies: 38
    • Views: 6,446
    Last Post: 02-17-17 01:37 PM
    by Electric-Light  Go to last post
    • Replies: 1
    • Views: 1,646
    Last Post: 12-08-16 11:31 AM
    by tom baker  Go to last post
  5. Variable Freq. Drives on Hazardous Location motors.

    Started by voltairzap on 11-30-15
    hazardous locations, vfd
    • Replies: 1
    • Views: 2,350
    Last Post: 12-01-15 12:18 AM
    by rbalex  Go to last post
  6. Calculation of MCC loads with FVNR and VFDs

    Started by Oly on 09-30-15
    mcc sizing, vfd
    • Replies: 0
    • Views: 1,981
    Last Post: 09-30-15 04:03 PM
    by Oly  Go to last post

    Forum:
    NEC

    • Replies: 2
    • Views: 4,015
    Last Post: 09-30-15 04:40 PM
    by Oly  Go to last post
  7. All my VFD's are tripping on Over-voltage

    Started by csc_wyo on 08-10-15
    2 Pages
    1 2
    harmonics, over voltage, powerflex 753, vfd, vfds failures
    • Replies: 15
    • Views: 7,648
    Last Post: 08-18-15 09:12 PM
    by kwired  Go to last post
  8. Integral Unit (Chiller w/ VFD) Input Conductor Sizing

    Started by NoVA Comms Power on 01-15-15
    2 Pages
    1 2
    • Replies: 19
    • Views: 6,697
    Last Post: 01-19-15 09:31 PM
    by tesi1  Go to last post
  9. Constant Pressure VFD on well tankfill application

    Started by Open Neutral on 01-12-15
    6 Pages
    1 2 3 ... 6
    pump, vfd
    • Replies: 53
    • Views: 13,974
    Last Post: 01-19-15 10:51 AM
    by kwired  Go to last post
  10. VFD Input I less than Motor FLC? SKM Analysis kVA Out > kVA In?

    Started by smoothops10 on 08-27-14
    2 Pages
    1 2
    • Replies: 10
    • Views: 7,750
    Last Post: 08-28-14 02:49 AM
    by Besoeker  Go to last post
  11. VFD Line-side Snubbers

    Started by beanland on 02-17-14
    bridge, diode, drive, snubber, vfd
    • Replies: 2
    • Views: 3,244
    Last Post: 02-17-14 05:26 PM
    by Jraef  Go to last post
  12. 2 Motors with VFDs (2) on 1 breaker

    Started by bnbowen@uiuc.edu on 02-02-14
    motor, vfd
    • Replies: 7
    • Views: 7,165
    Last Post: 02-03-14 10:38 PM
    by kwired  Go to last post
  13. VFD motor drive harmonics vs. grid-tied inverter

    Started by tfrsolar on 02-14-13
    grid-tie, harmonics, vfd
    • Replies: 4
    • Views: 4,893
    Last Post: 02-15-13 12:44 PM
    by tfrsolar  Go to last post
  14. VFD surge protection?

    Started by jmjr55 on 09-13-12
    surge protective device, very fast acting fuses, vfd
    • Replies: 6
    • Views: 11,829
    Last Post: 09-18-12 09:37 PM
    by robbietan  Go to last post
  15. Large HP VFD output on switcboard bus

    Started by jtrezon on 02-21-12
    2500hp, 690v, m-g, vfd
    • Replies: 1
    • Views: 3,132
    Last Post: 02-21-12 12:02 PM
    by Jraef  Go to last post
  16. Oversized VFD / 430.122(A) violation

    Started by Steamdonkey2011 on 12-20-11
    430.122, oversized, vfd
    • Replies: 6
    • Views: 8,125
    Last Post: 12-20-11 08:12 PM
    by Cow  Go to last post

    Forum:
    NEC

  17. VFD Rated Cable in Tray

    Started by mike.eng.urs on 10-18-11
    cable, drive, frequency, nec, vfd
    • Replies: 0
    • Views: 3,570
    Last Post: 10-18-11 11:59 AM
    by mike.eng.urs  Go to last post

    Forum:
    NEC

  18. Breaker Sizing for motors with Soft Starters and VFD's

    Started by montericci on 09-08-11
    breaker size, soft starter, vfd
    • Replies: 3
    • Views: 25,389
    Last Post: 09-21-11 11:17 AM
    by petersonra  Go to last post
  19. Shielded 600V Feeder Cable

    Started by Breaker19 on 04-25-11
    harmonics, shielded feeders, vfd
    • Replies: 3
    • Views: 4,962
    Last Post: 05-12-11 10:43 PM
    by jdsmith  Go to last post
    • Replies: 1
    • Views: 5,425
    Last Post: 02-27-11 01:39 PM
    by iwire  Go to last post
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