Protection and Switchgear Notes

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PROTECTION SCHEMES

👉Fundamentals of Power System Protection
👉Zones and types of Protection system
👉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 RELAY

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

APPARATUS PROTECTION

👉Over current and earth fault protection
👉Transformer Protection
👉Generator protection
👉Protection of bus bars
👉Current Transformers(CT)s Potential Transformer(PT)s and their applications in protection


STATIC RELAYS AND NUMERICAL PROTECTION

👉Formation of arc during circuit breaking
👉AC and DC circuit breaking
👉Restriking voltage and 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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