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# Forum: Electrical Calculations / Engineering

1. ### Sticky: Understanding the Neutral Conductor

• Replies: 0
• Views: 8,397
08-02-07, 07:44 PM

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1. ### Where do we use 1.73 when calculating 3 phase power

• Replies: 9
• Views: 191
gar
Yesterday, 10:57 PM
2. ### Fuse or Breaker to protect Heat Pump

• Replies: 9
• Views: 218
Yesterday, 08:49 PM
3. ### Buck and boost for load increased portion only

• Replies: 6
• Views: 99
Yesterday, 08:44 PM
4. ### NEC 2017, How is Table 220.88 Optional Method applied to a load calculation

• Replies: 1
• Views: 172
06-18-19, 09:28 AM
5. ### Relay coordination

• Replies: 2
• Views: 213
06-17-19, 06:58 PM
6. ### Harmonics and PF

• Replies: 7
• Views: 399
06-17-19, 02:31 PM
7. ### duct bank

• Replies: 4
• Views: 272
ron
06-17-19, 01:02 PM
8. ### Customer Has Been Dropping a Phase

• Replies: 12
• Views: 822
06-16-19, 11:37 PM
9. ### Does 208V 100A 3ph input approx. equal 480V 30A 3ph output for a step-up transformer?

• Replies: 10
• Views: 504
06-16-19, 04:40 PM
10. ### Engineer vs EC

• Replies: 10
• Views: 773
06-15-19, 12:56 PM
11. ### A really bad day: marine 138KV cables damaged

• Replies: 3
• Views: 363
06-14-19, 11:36 PM
12. ### Sizing a device for multifamily dwelling

• Replies: 0
• Views: 140
06-14-19, 10:45 PM
13. ### Primary lost phase

• Replies: 3
• Views: 328
06-14-19, 06:07 PM
14. ### Modifying Existing MCC

• Replies: 3
• Views: 286
06-14-19, 02:07 PM
15. ### Handhole for Service Conductors

• Replies: 3
• Views: 413
06-14-19, 11:37 AM
16. ### Utility Transformer Grounding

• Replies: 1
• Views: 220
06-14-19, 11:22 AM
17. ### Question on Fault Current

• Replies: 7
• Views: 662
06-14-19, 12:10 AM
18. ### Feeder Size

• Replies: 6
• Views: 399
06-13-19, 10:40 PM

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