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Protection and Switchgear

Practical project ideas and implementations for hands-on learning

Buchholz relay: Operation, Advantages, Applications

Current Transformers (CTs) and Potential Transformer (PTs) and their applications in protection schemes

Generator protection

Over current and earth fault protection

Protection of bus bars

Transformer Protection

Zones and types of Protection system

Air blast circuit breaker: Working principle, Advantages, Disadvantages

Oil circuit breakers: Types, Construction, Operation, Advantages, Disadvantages

Rating of Circuit Breaker

Differential Relay

Directional Over Current Relays

Distance relay

Impedance Relay

Over Current Relay: Working Principle and Types

Static relays

Types of Electromagnetic Relay

Arcing Grounds

Consequences of occurrence of Faults

Fundamentals of Power System Protection

Protection against over voltages due to lightning and switching

Protection System Requirements and some basic terminologies used

Surge absorber

Surge diverter

Types and Method of Neutral Earthing in Power Distribution

Zones and types of Protection system

AC and DC circuit breaking

Current Chopping

Formation of arc during circuit breaking

Rate of rise of recovery voltage

Resistance switching

Restriking voltage and recovery voltage