Lesson 7 of 24 • 73 upvotes • 11:14mins
Electromagnetic attraction type relays are the classic relays in the field of switch gear and protection. These are the very first relays used in the power system. Though GATE doesn't ask questions regarding the outdated syllabus, these are the basic things an engineer should know before getting into the modern switchgear systems
24 lessons • 4h 20m
Overview
6:44mins
Need for Protection
12:45mins
Objectives of protection system
5:50mins
Classification of protection relays
6:49mins
Operation of Relays
14:54mins
Current transformers
12:44mins
Electromagnetic attraction type relay
11:14mins
Shaded pole - Induction disc type relay
9:23mins
Watt hour meter type relay
11:45mins
Induction disc type relay
11:30mins
Operating times
14:56mins
Over current relays and PSM
15:00mins
MCQs part - 1
13:14mins
TMS & types of Over Current relays
15:00mins
Very inverse OC relay and other characteristics
4:58mins
Over reach and under reach
6:09mins
Directional relays
6:27mins
Features of Directional Relays
7:23mins
Dead zone
10:10mins
Distance protection - Fundamentals
15:00mins
Impedance relays - working
10:15mins
Reactance relays
12:37mins
Mho relay
11:16mins
All in one lesson on Distance relays
14:41mins