Basic and advanced system protection schemes using fuses, solid state and electromechanical relays to protect equipment from faults and other undesirable conditions are discussed in this course. This course is designed to aggregate the important concepts of power system protection. This course covers distribution, transmission and substation protection schemes. DC control circuits are discussed.
Applicable NERC standards are discussed in this course.
This course is part of APT's Electric Power Proficiency Certification Program.
Learning Outcomes
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The student will demonstrate knowledge of system protection principles
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At the conclusion of this course, the student will be able to access, discuss, and recommend measures that improve, repair, or satisfy system protection issues
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The student will identify, suggest and apply protection concepts in areas needing improvement
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Having the ability to communicate protection related issues to appropriate personnel will improve system operations and performance
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The student will have knowledge of past, present and future protective relaying equipment and applications to better perform their jobs responsibilities
Topics Covered Include
Role of System Protection
Faults
Types
Discussion of Maximum/Minimum
Targets and Information Analysis
Distance Analysis
Fuses
Theory
Types
Curves
Sensors or Instrument Transformers
Potential Transformers
Current Transformers
Accuracy Ratings
Burdon
Protective Relay Types
Solid State
Electromechanical
Protection Concepts
Nomenclature
Control Circuits
Control Power
Basic Protective Relay Applications
Timing Curves
Reclosing
Sectionalizing
Over Current and Voltage
Underfrequency Load Shed
Zone/Distance
Differential Transformer/Bus
Transfer Trip
Interconnected Systems
Distribution Packages
Transmission Line Packages
Substation Packages
Generation Protection
Coordination Principles
