1. UMKC Senior SUBSTATION DESIGN TEAM
Website:

2. UMKC Senior Substation Design Team
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
Website:

3. What is a substation used for ?
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.)

4. Power Transformer

6. Forms
Core
Shell

7. How It
Interfaces

8. Disconnect Switches
Bushings
Current Transformer
Circuit Breaker

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

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

12. Protective Relaying

13. Protective Relaying

14. Zones of Protection

15. Lightning & Switching Surge Mitigation
Line Phasing

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

17. Why grounding is important
Why grounding is important ? 1-Path for short circuit to remote earth 2-Provide safe step and touch potentials Grounding system design consists of all the following :
Grounding rods
Grounding grid
Copper cables
Equipment connectors

18. 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

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

20. Grounding Design procedure :

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

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

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