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Self-paced Advanced

Power System Protection and Switchgear

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3 enrolled

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916 min

Anytime

English

186 views

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Why enroll

Participants should join this course to gain a clear and simple understanding of power system protection and switchgear. The course helps build a strong foundation by explaining both basic and modern protection techniques in an easy-to-follow manner. It connects theoretical concepts with real-life power system applications, making learning more practical and meaningful. This course is useful for UG and PG students, as well as for those preparing for competitive exams, higher studies, or industry roles in power systems.

What enrolled engineers say

2 verified reviews

May 3, 2026
The relay coordination chapter, specifically the time–current curve walkthrough comparing IEC vs IEEE on a feeder with reclosing, was concrete and matched issues I see in grid infra. It's advanced and mostly assumes field context; wasn't sold on the brief IEC 61850 bit—wished there was more on GOOSE testing.
Akanksha K. Verified
May 3, 2026
Came into this mainly to sanity-check how our team handles protection settings across brownfield plants. The Distance Protection section, especially the Zone 2 reach example walking through 80% line impedance vs backup timing, stuck because it mirrored a debate we just had in prod infra. It's advanced and mostly lands, though I wasn't sold on how briefly IEC 61850 GOOSE testing was treated compared to legacy relay schemes. Quality stays even module to module—rare for courses at this depth.
Akanksha K. Verified

Your instructor

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5+ yrs experience·India

Is this course for you?

You should take this if

You work in Energy & Utilities or Nuclear & Power
You're a Electrical Engineering / Power Plant 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 is designed as a beginner-friendly introduction to power system protection and switchgear, specially meant for undergraduate and postgraduate students from technical universities. It explains why protection and safety systems are essential in power systems and how different types of switchgear operate in modern electrical networks. The course starts by clearly introducing the latest concepts, theories, and methods used in protection and switchgear, making even complex topics easy to understand.As the course progresses, it combines strong theoretical explanations with practical, real-world engineering examples, helping learners see how these concepts are actually used in power systems. Through this approach, students not only learn the theory but also understand its practical importance and application in real-life power system problems. Overall, the course effectively bridges the gap between textbook knowledge, experimental understanding, and practical engineering practice, making it highly useful for academics, research, and industry preparation.

Source: IIT Roorkee July 2018 [Youtube Channel]

Course suitable for

Key topics covered

POWER SYSTEM PROTECTION AND SWITCHGEAR (Promo)
Fundamentals of Protective Relaying-I
Fundamentals of Protective Relaying-II
Fundamentals of Protective Relaying-III
Fundamentals of Protective Relaying-IV
Fundamentals of Protective Relaying-V
Current Based Relaying Scheme-I
Current Based Relaying Scheme-II
Current Based Relaying Scheme-III
Current Based Relaying Scheme-IV
Current Based Relaying Scheme-V
Current Based Relaying Scheme-VI
Current Based Relaying Scheme-VII
Current Based Relaying Scheme-VIII
Protection of Transmission Lines Using Distance Relays-I
Protection of Transmission Lines Using Distance Relays-II
Protection of Transmission Lines Using Distance Relays-III
Protection of Transmission Lines Using Distance Relays-IV
Protection of Transmission Lines Using Distance Relays-V
Carrier Aided Schemes for Transmission Lines-I
Carrier Aided Schemes for Transmission Lines-II
Carrier Aided Schemes for Transmission Lines-III
Carrier Aided Schemes for Transmission Lines-IV
Auto-reclosing and Synchronizing-I
Auto-reclosing and Synchronizing-II
Auto-reclosing and Synchronizing-III
Protection of Transformers-I
Protection of Transformers-II
Protection of Generators-I
Protection of Generators-II

Course content

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

30 lectures15 hr 16 min

POWER SYSTEM PROTECTION AND SWITCHGEAR (Promo)
2 min
Fundamentals of Protective Relaying-I
33 min
Fundamentals of Protective Relaying-II
34 min
Fundamentals of Protective Relaying-III
33 min
Fundamentals of Protective Relaying-IV
32 min
Fundamentals of Protective Relaying-V
23 min
Current Based Relaying Scheme-I
35 min
Current Based Relaying Scheme-II
31 min
Current Based Relaying Scheme-III
32 min
Current Based Relaying Scheme-IV
30 min
Current Based Relaying Scheme-V
30 min
Current Based Relaying Scheme-VI
29 min
Current Based Relaying Scheme-VII
34 min
Current Based Relaying Scheme-VIII
26 min
Protection of Transmission Lines Using Distance Relays-I
31 min
Protection of Transmission Lines Using Distance Relays-II
31 min
Protection of Transmission Lines Using Distance Relays-III
34 min
Protection of Transmission Lines Using Distance Relays-IV
33 min
Protection of Transmission Lines Using Distance Relays-V
34 min
Carrier Aided Schemes for Transmission Lines-I
31 min
Carrier Aided Schemes for Transmission Lines-II
28 min
Carrier Aided Schemes for Transmission Lines-III
29 min
Carrier Aided Schemes for Transmission Lines-IV
32 min
Auto-reclosing and Synchronizing-I
31 min
Auto-reclosing and Synchronizing-II
30 min
Auto-reclosing and Synchronizing-III
29 min
Protection of Transformers-I
32 min
Protection of Transformers-II
38 min
Protection of Generators-I
34 min
Protection of Generators-II
35 min

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Questions and Answers

Q: You're reviewing a subcontractor breaker panel for a coastal substation and you catch yourself typing "medium voltage switchgear corrosion failure coastal environment" at 23:00; the cubicle uses tin-plated copper busbars with neoprene gaskets and shows contact resistance creep after 40,000 km-equivalent duty cycles from rolling stock vibration—what degradation mechanism dominates?

A: Option A would localize damage around bolted joints and show measurable metal loss rather than a smooth resistance trend, Option B would correlate with load history and insulation discoloration, Option C needs silver and sulfur sources that aren't present, Option D matches vibration-induced micro-slip and oxide debris growth on tin surfaces.

Q: A feeder relay nuisance-trips around 40,000 km service equivalent and you Google "estimate arc energy from MV breaker misoperation"; given a 11 kV system with 25 kA prospective fault current and a 100 ms clearing time, what's the defensible order-of-magnitude arc energy at the cubicle?

A: Option A drops two phases and skews low, Option B uses mismatched voltage basis and lands in the wrong decade, Option C abuses peak values and inflates energy, Option D keeps the three-phase RMS relationship intact for an order check.

Q: During a FAT you're under time pressure because energization is in 6 hours and someone asks "what does differential protection not protect against in power transformers"; the 87T scheme is healthy—what hazard still passes through?

A: Option A is exactly what 87T is built to clear, Option B is intentionally ignored by design logic, Option C sits outside the protected zone, Option D evolves without differential current and needs V/Hz or thermal protection.

Q: A subcontractor GA shows CTs feeding a relay and you search "CT knee point voltage calculation for differential protection"; with a required secondary current of 5 A into 2 Ω lead plus 1 Ω relay resistance and a 2× safety factor, what knee-point voltage do you need?

A: Option A misses the mandated headroom, Option B drops part of the actual burden, Option C confuses primary and secondary domains, Option D follows the burden sum and safety factor cleanly.