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Design of Electric Power Systems – Part 2
May 7, 2015 @ 8:00 am - 5:00 pm
Synopsis: When it comes to designing an electric power system, the NEC® is just the minimum. This is the second part of a 2 day program to show you how to design and electrical system using the NEC but also how to go beyond the code. When and why do you need to oversize neutrals? How do you perform lighting calculations? Learn some of the “tricks of the trade” when it comes to electrical design. This class is also part of the one week Power System Engineering course held publicly several times a year.
Types of Transformers, Characteristics and Specifications, K Factor, Protection Based on NEC 450, Inrush Current
Locked Rotor and Overload Protection, Insulation Class / Service Factor, Motor Tables, Sizing of Feeders, Protection
Grounding Electrode System, Equipment Ground, Conductor, Selection, Separately Derived Systems, High Resistance, Ground, Ground Loops and Power Quality
Class I, II, and III, Divisions and Groups, Explosion Proof, Design Requirements
Air Terminals, Conductors, NFPA 780
Emergency vs. Standby, Selection of Unit, Gasoline, Gas, (LP/Natural), Diesel Driven, Design Factors
AUTOMATIC TRANSFER SWITCHES
Size and Ratings, 3 Pole vs. 4 Pole
UNINTERRUPTIBLE POWER SUPPLIES
Sizing, Heat Loss, Compatibility with Generators