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UMKC Senior SUBSTATION DESIGN TEAM

UMKC Senior SUBSTATION DESIGN TEAM. Website: http://umkcsubstationdesign.weebly.com/. Members: Zane Potts - Power Transformer Payam Ansari - Circuit Breakers Brandon Howland - Protective Relaying Robert Biggs - Lightning Mitigation Ehab Abdelhaq - Grounding

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UMKC Senior SUBSTATION DESIGN TEAM

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  1. UMKC Senior SUBSTATION DESIGN TEAM Website: http://umkcsubstationdesign.weebly.com/

  2. Members: Zane Potts - Power Transformer Payam Ansari - Circuit Breakers Brandon Howland - Protective Relaying Robert Biggs - Lightning Mitigation Ehab Abdelhaq - Grounding Gary Kertz - Substation Layout Layout UMKC Senior Substation Design Team Website: http://umkcsubstationdesign.weebly.com/

  3. One of the main goals that every electrical utility company has is transportation of electrical energy from the generating station to the customer, while meeting the following main criteria: • High reliability of power supply • Low energy cost • High quality of energy (required voltage level, frequency etc.) What is a substation used for ?

  4. PowerTransformer

  5. Forms Core Shell

  6. How It Interfaces

  7. Disconnect Switches Bushings Current Transformer Circuit Breaker

  8. Disconnect Switch and Circuit Breaker • Purpose of Circuit Breakers and Disconnect Switches • Size of Breakers • Fault Current • Continuous Current • X/R Ratio • Power Flow

  9. Our Team Design of Breakers 3-138KV Breakers Ring Layout 1-69KV Breaker

  10. Protective Relaying

  11. Protective Relaying

  12. Zones of Protection

  13. Lightning & Switching Surge Mitigation Line Phasing

  14. Coordination Lightning/Switching Surge Ehab – Grounding Gary – Substation & Equipment Layout Line Phasing Gary – Substation & Equipment Layout

  15. Why grounding is important ?1-Path for short circuit to remote earth2-Provide safe step and touch potentialsGrounding system design consists of all the following : Grounding rods Grounding grid Copper cables Equipment connectors

  16. Main safety issues in grounding to be concerned about in designing the grounding system : • Step Voltage : Voltage difference in ground between your feet as you are standing or walking • Touch Voltage : Voltage difference between equipment being touched and the ground at your feet

  17. GPR ( Ground Potential Rise ) • - V = I * R -Fault current into the grounding system times resistance to “remote earth”

  18. Grounding Design procedure :

  19. Substation Layout Security and Serviceability Fencing Roadways Lighting Foundation Stability Elevation Containment • Controls Raceways Trench Conduit Controls house

  20. Substation Layout • Bus Layout • Configuration • Reliability • Cost • Physical Layout • Forces • Potentials • Materials used • Copper • Aluminum

  21. Questions? Professional Guidance Provided by: Website: http://umkcsubstationdesign.weebly.com/

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