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Power Plant Construction and QA/QC Section 4.3 – Electrical Interconnections

Engineering Technology Division. Power Plant Construction and QA/QC Section 4.3 – Electrical Interconnections. Section 4.3 – Electrical Interconnections. Overview. Interconnections provide; Power Distribution – Substations, Grid Protection – Overvoltage, Overcurrent

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Power Plant Construction and QA/QC Section 4.3 – Electrical Interconnections

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  1. Engineering Technology Division Power Plant Construction and QA/QC Section 4.3 – Electrical Interconnections

  2. Section 4.3 – Electrical Interconnections Overview • Interconnections provide; • Power Distribution – Substations, Grid • Protection – Overvoltage, Overcurrent • Transformation – Voltage • Plant base loads– voltage and frequency • Protection – Relays • Equipment availability

  3. Section 4.3 – Electrical Interconnections Interconnected Generation • Cogeneration • Small Power Production – Solar, Waste, Biomass • Peak Shaving • Dispersed Storage and Generation – Pump Storage • Federal Energy Regulatory Commission (FERC) • FERC 1979 Energy Act

  4. Section 4.3 – Electrical Interconnections Transformer Connections P S P S Wye – Wye Wye – Delta P S P S Delta – Delta Delta – Wye

  5. Section 4.3 – Electrical Interconnections Transformer Protection • Protective Relays; • Voltage – over and under • Frequency – over and under • Differential – internal faults • Directional – power flow • Distance – fault distance from source • Synchronizing – allow synchronization of two sources

  6. Section 4.3 – Electrical Interconnections Questions?

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