Protection and Switchgear [EEE Department]

Protection and Switchgear [EEE Department]

Protection and Switchgear

PROTECTION SCHEMES

1. Fundamentals of Power System Protection
2. Consequences of occurrence of Faults
3. Zones and types of Protection system
4. Protection System Requirements and some basic terminologies used
5. Protection against over voltages due to lightning and switching
6. Arcing Grounds
7. Surge absorber
8. Surge diverter
9. Types and Method of Neutral Earthing in Power Distribution

ELECTROMAGNETIC RELAYS

1. Types of Electromagnetic Relay
2. Over Current Relay: Working Principle and Types
3. Directional Over Current Relays
4. Distance relay
5. Impedance Relay
6. Differential Relay
7. Static relays

APPARATUS PROTECTION

1. Over current and earth fault protection
2. Transformer Protection
3. Buchholz relay: Operation, Advantages, Applications
4. Generator protection
5. Protection of bus bars
6. Zones and types of Protection system
7. Current Transformers(CT)s and Potential Transformer(PT)s and their applications in protection schemes

STATIC RELAYS AND NUMERICAL PROTECTION

1. Formation of arc during circuit breaking
2. AC and DC circuit breaking
3. Restriking voltage and recovery voltage
4. Rate of rise of recovery voltage
5. Resistance switching
6. Current Chopping

CIRCUIT BREAKERS

1. Rating of Circuit Breaker
2. Air blast circuit breaker: Working principle, Advantages, Disadvantages
3. Oil circuit breakers: Types, Construction, Operation, Advantages, Disadvantages
4. SF6 circuit breaker: Construction, Operation, Advantages, Disadvantages
5. Vacuum circuit breakers: Construction, Operation, Advantages, Disadvantages
6. Testing of circuit breakers