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  1. Supply Side Bonding Jumper for Transformers

    Started by 1972Grady on Yesterday
    ssbj, transformer
    • Replies: 3
    • Views: 132
    Last Post: Yesterday 03:12 PM
    by infinity  Go to last post
  2. Transformer "Secondary" OCPD

    Started by BlaineXD on 04-06-18
    secondary protection, transformer
    • Replies: 6
    • Views: 278
    Last Post: 04-06-18 02:44 PM
    by electrofelon  Go to last post

    Forum:
    NEC

  3. Utility Pad mounted transformer

    Started by David Christian on 04-05-18
    pg&e, transformer, utility
    • Replies: 3
    • Views: 290
    Last Post: 04-06-18 09:17 AM
    by Cow  Go to last post
  4. Transformer Primary, or is it Secondary?

    Started by beanland on 03-22-18
    450.3, over current, photovoltaic, transformer
    • Replies: 4
    • Views: 376
    Last Post: 03-29-18 03:38 PM
    by pv_n00b  Go to last post
  5. air compressor combo starter

    Started by StitzieJ on 01-25-18
    air compressor, combination starter, epec, starter, transformer
    • Replies: 3
    • Views: 336
    Last Post: 01-25-18 04:00 PM
    by Jraef  Go to last post
    • Replies: 15
    • Views: 918
    Last Post: 01-02-18 10:53 AM
    by ActionDave  Go to last post
  6. 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: 1,709
    Last Post: 01-03-18 02:21 PM
    by Jraef  Go to last post
    • Replies: 2
    • Views: 439
    Last Post: 11-08-17 07:54 PM
    by pv_n00b  Go to last post
  7. 480V in Residential

    Started by Castrovinci on 11-07-17
    480v, residential, transformer
    • Replies: 3
    • Views: 607
    Last Post: 11-08-17 05:48 AM
    by electrofelon  Go to last post

    Forum:
    NEC

    • Replies: 12
    • Views: 1,380
    Last Post: 10-05-17 08:55 PM
    by steve66  Go to last post
  8. Generator connecion to transformer

    Started by pablodjv on 09-02-17
    generator, nec, protection, switchgear, transformer
    • Replies: 4
    • Views: 719
    Last Post: 09-03-17 08:18 PM
    by Ingenieur  Go to last post
  9. Transformer Nameplate

    Started by OCPD on 07-21-17
    • Replies: 5
    • Views: 974
    Last Post: 07-22-17 11:37 AM
    by Ingenieur  Go to last post
  10. Reverse-feeding this transformer

    Started by Cannonmn on 07-08-17
    2 Pages
    1 2
    480v., ground, transformer
    • Replies: 12
    • Views: 1,573
    Last Post: 07-10-17 11:55 AM
    by Jraef  Go to last post
  11. Transformer Feed Point

    Started by Mr. Pickle on 06-02-17
    feed, harmonic, primary, size, transformer
    • Replies: 7
    • Views: 921
    Last Post: 06-03-17 10:11 AM
    by Fnewman  Go to last post
  12. Transformer Terminal Ratings

    Started by ryangittens on 03-30-17
    • Replies: 5
    • Views: 1,093
    Last Post: 03-31-17 12:14 PM
    by ryangittens  Go to last post
  13. Triplen Harmonics, 5th Harmonic, Drive Isolation Xfmr, Generator

    Started by spraymax6 on 03-30-17
    2 Pages
    1 2
    automatic transfer switch, drive isolation, harmonic, transformer
    • Replies: 14
    • Views: 1,536
    Last Post: 03-31-17 07:00 PM
    by Jraef  Go to last post
  14. Transformer Neutral required for Inverter Interconnection?

    Started by SunFish on 03-28-17
    2 Pages
    1 2
    delta, high leg, neutral, solar transformer, transformer
    • Replies: 16
    • Views: 2,243
    Last Post: 03-29-17 09:26 PM
    by Smart $  Go to last post
  15. EGC as GEC (for xfrmr in MCC)

    Started by amatsu42 on 02-14-17
    egc, gec, ground, grounding electrode, transformer
    • Replies: 4
    • Views: 1,206
    Last Post: 02-15-17 12:35 PM
    by amatsu42  Go to last post
  16. Grounding a Transformer

    Started by rancho5000 on 01-06-17
    • Replies: 6
    • Views: 1,401
    Last Post: 01-07-17 05:43 PM
    by MattS87  Go to last post
  17. Overhead/Pole-Mounted Transformer Sizing for dwelling units.

    Started by Frank A on 11-29-16
    2 Pages
    1 2
    • Replies: 12
    • Views: 2,418
    Last Post: 12-02-16 07:35 AM
    by kwired  Go to last post
  18. 240/480 Transformer for 277/480 Generator

    Started by machodelmonte on 11-22-16
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,594
    Last Post: 11-26-16 02:05 PM
    by Saturn_Europa  Go to last post
  19. Load reading - INCONSISTENCY

    Started by melvinkoshy on 11-07-16
    tap changing, transformer
    • Replies: 6
    • Views: 1,290
    Last Post: 11-07-16 12:12 PM
    by Jraef  Go to last post
  20. Secondary conductors from a feeder-tapped transformer- 240.21(c)(4)

    Started by riverjig87 on 09-30-16
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,847
    Last Post: 09-30-16 05:12 PM
    by Smart $  Go to last post

    Forum:
    NEC

  21. Feeding a tranformer

    Started by JaxELectric on 09-16-16
    commercial electric, service entrance, transformer
    • Replies: 2
    • Views: 1,371
    Last Post: 09-24-16 04:12 PM
    by JaxELectric  Go to last post
  22. Whats the deal with "Solar-Rated" transformers?

    Started by Matt Donovan on 05-23-16
    inverter sizing, solar, transformer, transformer sizing
    • Replies: 8
    • Views: 2,564
    Last Post: 05-25-16 09:27 AM
    by ggunn  Go to last post
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