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