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ECE 6605PD

Power System Protection

Graduate

Spring 2025 · D Power System Protection

Topics

  • Protection-system requirements and fault types
  • Relays, circuit breakers and instrument transformers
  • Symmetrical components and fault calculations
  • Overcurrent protection and coordination
  • Directional overcurrent relays
  • Distance protection
  • Pilot protection of transmission lines
  • Transformer, busbar, generator and motor protection

Readings

  • Power System Relaying
    Stanley H. Horowitz and Arun G. Phadke · 4th · recommended
    Wiley; author spelling normalized from source.
  • Protective Relaying: Principles and Applications
    J. L. Blackburn · recommended
    Taylor & Francis.
  • Power System Analysis and Design
    J. Duncan Glover, Mulukutla S. Sarma and Thomas J. Overbye · 5th · recommended
    Cengage.
Spring 2024

Topics

  • Protection requirements and power-system faults
  • Relays, circuit breakers and instrument transformers
  • Symmetrical components and fault calculations
  • Overcurrent protection and coordination
  • Directional relays and distance protection
  • Pilot protection of transmission lines
  • Transformer, busbar, generator and motor protection
Spring 2022 · Power System Protection and Relaying

Topics

  • Module 1-Protection system requirements (1 lecture) : Overview of power system structure , causes and types of faults, and protection system main requirements
  • Module 2-Elements of protection systems (2 lectures ): Relay types and operating principles, circuit breaker types and operating principles (optional), and instrumen t transformers types and operating principles
  • Module 3-Review of symmetrical components and power system fault calculations ( 2 lecture): Balanced 3 -phase faults, Unbalanced faults , Symmetrical components , and Sequence network construction
  • Module 4-Overcurrent protection (1 lectures): Principles of overcurrent protection, fuses, sectionalizers and reclosers, time-delay overcurrent relays, and instantaneous overcurrent relays
  • Module 5-Coordination principle of overcurrent protection devices (2 lectures): Guidelines for coordination of overcurrent protection devices
  • Module 6-Directional overcurrent relays (2 lectures ): Application of directional relays , and different connections and maximum torque angles
  • Module 7-Distance protection (2 lectures): Distance relay characteristics, and f actors affecting distance relay performance
  • Module 8-Pilot protection of transmission lines (4 lectures ): Communication channels, directional comparison blocking, directional comparison unblocking, direct underreaching transfer trip, permissive overreaching transfer trip, permissive underreaching transfer trip, and current-based pilot schemes
  • Module 9-Transformer protection ( 2 lectures): Overcurrent protection, differential protection, and nonelectrical protection
  • Module 10-Busbar Protection (2 lectures): Common busbar arrangements and busbar protection
  • Module 11-Generator protection (2 lectures): Typical power plant layouts, grounding methods for generators and protection principle against stator faults, rotor faults, unbalanced currents, overexcitation, overspeed, abnormal voltages and frequencies, and loss of excitation
  • Module 12-Motor protection (2 lectures): Motor failures, thermal protection, stall or locked rotor protection, short circuit protection, ground fault protection, load -loss/load jam protection, overspeed protection, unbalance current protection, undervoltage protection, and overvoltage protection Note: The number of lectures for each module may vary based on class progress.

Readings

  • Stanely H. Horowitz, & Arun G. Phadke, Power System Relaying, 4th edition, Wiley (Text-1)
    4th edition · unspecified
  • J. Duncan Glover, Mulukutla S. Sarma & Thomas, J. Overbye, Power System Analysis and Design, 5th edition, CENGAGE Learning (Text-3)
    5th edition · unspecified
Undated

Readings

  • Power System Relaying
    unspecified
  • Alstom, Network Protection and Automation, 2002.
    unspecified
  • J.L. Blackburn, Protective Relaying, Marcel Dekker, Inc., 1987.
    unspecified
  • Asea Brown Boveri, Walter Elmore (Editor), Protective Relaying - Theory and Applications", Marcel and Dekker, 1994.
    unspecified
  • Advancements in Microprocessor Based Protection and Communication", IEEE, Tutorial Course, IEEE Power Engineering Society, NJ, 1997.
    unspecified
  • Microprocessor Relays and Protection Systems
    unspecified
  • Computer Relaying
    unspecified
  • Computer Relaying for Power Systems
    unspecified
Sources