Iec 60255-149, 151 & 181 Protection Relay Design And Testing
Published 7/2026
Created by Purankumar Gajera
MP4 | Video: h264, 3840×2160 | Audio: AAC, 44.1 KHz, 2 Ch
Level: All Levels | Genre: eLearning | Language: English | Duration: 13 Lectures ( 4h 49m ) | Size: 11 GB
Master IEC 60255-149, IEC 60255-151 & IEC 60255-181 with practical explanations of thermal, overcurrent, undercurrent, f
What you’ll learn
⚡ Understand the requirements of IEC 60255-149, IEC 60255-151, and IEC 60255-181 for thermal, overcurrent, undercurrent, frequency, and ROCOF protection relays.
⚡ Explain the operating principles of thermal protection, overcurrent protection, underfrequency, overfrequency, and Rate of Change of Frequency (ROCOF) protectio
⚡ Interpret relay operating characteristics, pickup values, reset values, start time, operate time delay, disengaging time, and reset hysteresis as specified in I
⚡ Perform and understand IEC type testing procedures for protection relays, including accuracy testing, harmonic performance testing, stability testing, and timin
Requirements
❗ No prior knowledge of IEC 60255 standards is required. This course is designed to guide you step by step, from the fundamentals to advanced protection relay testing concepts.
Description
"This course contains the use of artificial intelligence."
Welcome toMastering IEC 60255 Protection Relays: Thermal, Overcurrent & Frequency Protection Testing, a comprehensive course designed to help you understand the international standards governing modern protection relays used in electrical power systems.
This course focuses onIEC 60255-149, IEC 60255-151, and IEC 60255-181, which define the functional requirements, performance characteristics, and testing methods forthermal protection,overcurrent and undercurrent protection,frequency protection, andRate of Change of Frequency (ROCOF) protection.
Whether you are an electrical engineer, protection engineer, testing professional, commissioning engineer, student, or researcher, this course provides a structured, practical, and easy-to-follow learning experience. Every topic is explained in clear language, making even complex technical concepts accessible to learners with different levels of experience.
Throughout the course, you will learn how protection relays operate, how their characteristics are defined, and how they are evaluated according to IEC standards. You will gain an understanding of relay operating principles, pickup and reset characteristics, operating time, thermal behavior, frequency measurement, ROCOF detection, harmonic performance, stability requirements, and the documentation required for compliance testing.
The course also introduces theIEC type testing procedures used to verify relay performance, including accuracy tests, timing tests, harmonic immunity, transient response, stability verification, and acceptance criteria. Practical examples and engineering explanations are included to help you relate the standard requirements to real-world applications.
What You’ll Learn
✨ Fundamentals of IEC 60255 protection relay standards.
✨ Thermal protection according to IEC 60255-149.
✨ Overcurrent and undercurrent protection according to IEC 60255-151.
✨ Frequency and ROCOF protection according to IEC 60255-181.
✨ Relay operating characteristics and performance requirements.
✨ IEC type testing methods and compliance requirements.
✨ Harmonic, transient, and stability testing of protection relays.
✨ Interpretation of IEC documentation and test reports.
✨ Practical applications in substations, industrial power systems, utilities, and renewable energy plants.
Who Should Enroll
This course is ideal for
✨ Protection Engineers
✨ Electrical Design Engineers
✨ Testing and Certification Engineers
✨ Commissioning and Maintenance Engineers
✨ Power System Engineers
✨ Utility and Renewable Energy Professionals
✨ Testing Laboratory Engineers
✨ Electrical Engineering Students and Researchers
✨ Anyone interested in IEC protection relay standards and testing
By the end of this course, you will have a solid understanding of IEC 60255 protection relay standards and the confidence to apply these requirements in the design, testing, commissioning, certification, and maintenance of protection systems. The knowledge gained will support your professional development and help you work more effectively with protection relays in power system applications.
Join this course and build the expertise needed to understand, test, and applyIEC 60255-149, IEC 60255-151, and IEC 60255-181 with confidence.
Who this course is for
⭐ Engineers working in Testing Laboratories involved in IEC compliance testing, product certification, and performance verification.
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