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Published byGodwin Willis Modified over 9 years ago
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EE 445 Course Presentation Power System Protection
Mohammed AL-Zeer 224026
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Outline Introduction Power System Power System Protection Relays
Conclusion
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Introduction How much it will cost to build a substation?
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Introduction How much it will cost to construct 1 km of T.L ?
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Introduction How much it will cost to buy a large generator?
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Introduction 25%
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Power System
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Power system Protection
Transducer Circuit breakers Protective relays
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Transducer sensor & transformer Current transformer (CT) &
Potential transformer (PT)
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Circuit Breakers Mechanical device
Energize & interrupt electric circuits
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Protective Relays Receive signals from transducers &
Control circuit breakers
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Protection Systems Main protection Backup Protection
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Zones of Protection
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Requirements of Protection Systems
Speed Selectivity Reliability Sensitivity
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Types of Protective Relays
Over-current Relays Differential Relays Percentage-Differential Relays Directional Relays
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Over-current Relays
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Types of Protective Relays
Over-current Relays Differential Relays Percentage-Differential Relays Directional Relays
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Differential Relays
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Types of Protective Relays
Over-current Relays Differential Relays Percentage-Differential Relays Directional Relays
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Types of Protective Relays
Over-current Relays Differential Relays Percentage-Differential Relays Directional Relays
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Application
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Conclusion
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References Electromechanical Energy Devices And Power Systems (EE 360)
Power System Relaying (EE 466)
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Thank You
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Q & A
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