PROT 301: Protecting Power Systems for Technicians

PROT 301 addresses the basic methods, tools, and devices used in the field of power system protection.

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Audience

This course is intended for technicians and individuals without electrical engineering degrees who require an overall understanding of power system protection.

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Agenda

Day 1

• Power System Basics
• Electrical Equipment Damage
• Power System Balanced Faults
• Introduction to Symmetrical Components (includes a class exercise)
• Power System Unbalanced Faults
• Relaying Fundamentals

Day 2

• Instrument Transformers: CTs and VTs (includes a class exercise)
• Protective Relay Design
• Introduction to Line Overcurrent Protection
• Coordination of Overcurrent Protection in Radial Systems
• Line Directional Overcurrent Protection
• Transformer Overcurrent and Mechanical Protection

Day 3

• Transformer Differential Protection (includes a class exercise)
• Bus Protection (includes a class exercise)
• Transmission Line Distance Protection Concepts
• Transmission Line Distance Protection Issues
• Line Pilot Protection
• System Aspects of Protection

Note: This course teaches fundamental knowledge but does not provide hands-on experience with SEL relays.

Learning Outcomes

At the conclusion of this course, students can:

• Explain the importance of symmetrical components in analyzing power systems.
• Identify the types of protective systems used for various applications.
• Define distribution and transmission line protection principles.
• Describe how differential, overcurrent, and mechanical methods are used to protect power transformers.
• Use metering and event reporting functions from modern protective relay systems to monitor protection system performance.

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Student Background and Knowledge

Before you attend this class, we recommend that you:

• Have a basic knowledge of power systems.
• Complete SEL precourse review document OR have a working knowledge of complex math, trigonometry, digital logic, and per-unit calculations.

Click here to view our recommended reading on various topics.

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