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Electrical Electonics and Comunication Engineering EEE ECE

Protection and Switchgear - EE6702

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

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