Power Plant Construction and QA/QC Section 4.4 – In-Plant Electrical Distribution Engineering Technology Division
2 Section 4.4 – In-Plant Electrical Distribution Overview Loads vary – 5v to 13.8 kV Vital and Non Vital loads Both AC and DC voltage Multiple Power Sources – Battery, Emergency Generators Protection Voltage Current Faults Shorts Connection – Wire and bus trays
3 Section 4.4 – In-Plant Electrical Distribution Power Plant Distribution - Concept Source 1 Transformer Switchgear Load Center Vital Load Center Transformer Source 2 Transformer Switchgear Load Center Transformer Source kV To 1,460 V To 480 V to 120 V
4 Section 4.4 – In-Plant Electrical Distribution Power Plant Distribution Transformer Switchgear Equipment Source Storage Bus Bars Wires
5 Section 4.4 – In-Plant Electrical Distribution Power Plant Distribution
6 Section 4.4 – In-Plant Electrical Distribution Switchgear – Circuit Breakers Installed 13.8 kV Circuit Breaker Removed
7 Section 4.4 – In-Plant Electrical Distribution Switchgear – Circuit Breakers Front 480 V Circuit Breaker Back
8 Section 4.4 – In-Plant Electrical Distribution Switchgear – Circuit Distribution Circuit Breaker Fuse
9 Section 4.4 – In-Plant Electrical Distribution Switchgear Bus Work Internal External 4,160 and 13,800 Volts
10 Section 4.4 – In-Plant Electrical Distribution Cable Trays 480 / 240 and 120 Volt
11 Questions? Section 4.4 – In-Plant Electrical Distribution