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Electrical Electonics and Comunication Engineering EEE ECE

Protection and Switchgear - EE6702

Protection and Switchgear

PROTECTION SCHEMES


-:- Fundamentals of Power System Protection
-:- Consequences of occurrence of Faults
-:- Zones and types of Protection system
-:- Protection System Requirements and some basic terminologies used
-:- Protection against over voltages due to lightning and switching
-:- Arcing Grounds
-:- Surge absorber
-:- Surge diverter
-:- Types and Method of Neutral Earthing in Power Distribution

ELECTROMAGNETIC RELAYS


-:- Types of Electromagnetic Relay
-:- Over Current Relay: Working Principle and Types
-:- Directional Over Current Relays
-:- Distance relay
-:- Impedance Relay
-:- Differential Relay
-:- Static relays

APPARATUS PROTECTION


-:- Over current and earth fault protection
-:- Transformer Protection
-:- Buchholz relay: Operation, Advantages, Applications
-:- Generator protection
-:- Protection of bus bars
-:- Zones and types of Protection system
-:- Current Transformers(CT)s and Potential Transformer(PT)s and their applications in protection schemes

STATIC RELAYS AND NUMERICAL PROTECTION


-:- Formation of arc during circuit breaking
-:- AC and DC circuit breaking
-:- Restriking voltage and recovery voltage
-:- Rate of rise of recovery voltage
-:- Resistance switching
-:- Current Chopping

CIRCUIT BREAKERS


-:- Rating of Circuit Breaker
-:- Air blast circuit breaker: Working principle, Advantages, Disadvantages
-:- Oil circuit breakers: Types, Construction, Operation, Advantages, Disadvantages
-:- SF6 circuit breaker: Construction, Operation, Advantages, Disadvantages
-:- Vacuum circuit breakers: Construction, Operation, Advantages, Disadvantages
-:- Testing of circuit breakers