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Power Plant Construction and QA/QC Section 4.4 – In-Plant Electrical Distribution

Engineering Technology Division. Power Plant Construction and QA/QC Section 4.4 – In-Plant Electrical Distribution. 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

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Power Plant Construction and QA/QC Section 4.4 – In-Plant Electrical Distribution

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  1. Engineering Technology Division Power Plant Construction and QA/QC Section 4.4 – In-Plant Electrical Distribution

  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 13.8 kV To 1,460 V To 480 V to 120 V Source 1 Source 2 Transformer Transformer Switchgear Switchgear Transformer Transformer Load Center Load Center Transformer Vital Load Center Source 3

  4. Section 4.4 – In-Plant Electrical Distribution Power Plant Distribution Transformer Switchgear Source Storage Bus Bars Equipment Bus Bars Wires Wires 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 4,160 and 13,800 Volts External Internal

  10. Section 4.4 – In-Plant Electrical Distribution Cable Trays 480 / 240 and 120 Volt

  11. Section 4.4 – In-Plant Electrical Distribution Questions?

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