Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by jacka

  1. jacka

    Requirement for transformer oil pit

    Yes, according to NEC Article 450 for any building and/ or indoor installations (assuming NEC applies).
  2. jacka

    Power Distribution

    Is the main service 200 or 400 amps? Assuming you have 400 amp. service I recommend you replace your main panelboard with a 400amp MCB panelboard that is equipped with 1-200amp circuit breaker and 2-100amp circuit breakers. You can use the circuit breakers to feed whatever building you want...
  3. jacka

    480 VAC Transformer Question

    To peterp: You chose 90A fuse or C.B. for secondary, according to NEC table 450-3(b) the secondary protection should be 250% of 54.13A = 135.3A, why not use 125, 110, 100 or 90A fuse or C.B.?
See more

Part and Inventory Search

Back
Top