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Recent Advances in Transmission Insulators

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617 min

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Electrical Engineering

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Why enroll

Participants should join this course to gain updated knowledge on UHV transmission insulation design.It is ideal for students, engineers, and professionals who want strong fundamentals with practical insights.The course helps in understanding real-world challenges and prepares learners for advanced power system work.

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Is this course for you?

You should take this if

You work in Automotive
You're a Electrical Engineering professional
You have 3+ years of hands-on experience in this field
You want to build skills in Engineering & Design, Project Management

You should skip if

You're new to this field with no prior experience
You need a different specialisation outside Electrical Engineering
You need live interaction with an instructor

Course details

This course explains the latest developments in EHV and UHV transmission insulators in a clear and simple manner. It begins by introducing the importance of EHV/UHV transmission in modern power systems and highlights its present role as well as future growth. Learners gain an understanding of UHV transmission networks and the need for advanced insulation techniques. The course covers various types of insulators used in EHV/UHV systems along with their applications. Special emphasis is given to newer design criteria and insulation requirements for UHV transmission lines. Participants learn about key electrical, mechanical, and environmental design considerations. Practical challenges such as pollution effects, weather conditions, and aging of insulators are discussed in detail. The concepts are reinforced through real-life examples and practical video demonstrations. Assignment exercises help learners apply theoretical knowledge to practical design problems. Overall, the course builds strong fundamentals while providing insight into modern industry practices.

Source: NPTEL - Indian Institute of Science , Bangaluru [Youtube Channel]

Course suitable for

Key topics covered

Recent Advances in Transmission Insulators – Introduction
Introduction to Transmission and Distribution Insulators
Manufacturing Process for Ceramic and Glass Insulators
Manufacturing Process for Polymeric Insulators
Design Considerations of Transmission Insulators
Field Experience of Ceramic, Glass, and Polymeric Insulators
Comparison of Different Types of Transmission Insulators
Environmental Issues Related to Transmission Insulators
Reliability Aspects and Philosophy of Testing
Testing of Ceramic, Glass, and Composite Insulators
Cleaning Methods Adopted for Insulators
Cleaning Methods Adopted for Insulators (Continued)
Coating Techniques for Transmission Insulators
Introduction to Hybrid Insulators

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

14 lectures10 hr 17 min

Opportunities that await you!

Skills & tools you'll gain

Engineering & Design

Project Management

Research & Developmnet

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Questions and Answers

Q: You're reviewing live line performance data after a coastal storm and searching "silicone rubber transmission insulator hydrophobicity loss leakage current response". The SCADA trend shows a step increase in leakage current on a 400 kV composite string, but no flashover. What downstream behavior do you expect next, and what's the correct engineering response?

Q: Your lead sends you a sizing check and you Google "IEC 60815 creepage distance calculation heavy pollution 220 kV". For a 220 kV system (Um = 245 kV) in heavy pollution using polymer insulators, what minimum specific creepage distance applies?

Q: You're reviewing rev 4 GA drawings and searching "transmission insulator drawing corona ring symbol interpretation". The drawing shows a dashed toroid at one end of a composite long rod. What does that symbol actually call out?

Q: After 40,000 km equivalent exposure, you search "RTV coated porcelain insulator aging leakage current increase response". Leakage current rises during fog events on RTV-coated porcelain strings. What's the expected progression and the correct response?