umkc senior substation design team website:
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UMKC Senior SUBSTATION DESIGN TEAM
Website: http://umkcsubstationdesign.weebly.com/
UMKC Senior Substation Design TeamMembers:Zane Potts - Power TransformerPayam Ansari - Circuit BreakersBrandon Howland - Protective RelayingRobert Biggs - Lightning MitigationEhab Abdelhaq - Grounding Gary Kertz - Substation Layout Layout
Website: http://umkcsubstationdesign.weebly.com/
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.)
Power Transformer
Forms
Core Shell
How It Interfaces
Disconnect Switches
Bushings
Circuit Breaker
Current Transformer
Purpose of Circuit Breakers and Disconnect Switches
Size of Breakers• Fault Current
• Continuous Current• X/R Ratio
• Power Flow
Disconnect Switch and Circuit Breaker
Our Team Design of Breakers
3-138KV Breakers
Ring Layout
1-69KV Breaker
Protective Relaying
Protective Relaying
Zones of Protection
Lightning & Switching Surge Mitigation
Line Phasing
CoordinationLightning/Switching SurgeEhab – GroundingGary – Substation & Equipment LayoutLine PhasingGary – Substation & Equipment Layout
Why grounding is important ?1-Path for short circuit to remote earth2-Provide safe step and touch potentials
Grounding system design consists of all the following :Grounding
rods Grounding
grid Copper cables
Equipment connectors
• Main safety issues in grounding to be concerned about in designing the grounding system :– Touch Voltage : Voltage difference between equipment being touched and the ground at your feet
– Step Voltage : Voltage difference in ground between your feet as you are standing or walking
GPR ( Ground Potential Rise )
- V = I * R -Fault current into the grounding system times resistance to “remote earth”
Grounding Design procedure :
Substation Layout
ControlsRacewaysTrenchConduitControls house
Security and ServiceabilityFencing RoadwaysLighting FoundationStabilityElevation Containment
Substation Layout Bus LayoutConfigurationReliabilityCostPhysical LayoutForces PotentialsMaterials usedCopperAluminum
Website: http://umkcsubstationdesign.weebly.com/
QUESTIONS?
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