Aktu Power System Protection (KEE-077) Btech Syllabus

Discover the AKTU B.Tech syllabus on Power System Protection to learn about the fundamentals of protecting electrical networks from failures and disruptions. Learn the skill of maintaining a dependable and secure power supply.

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UNIT-1: PROTECTION SCHEME

• Need for Protective systems,
• Evolution of protective relays
• Zones of protection
• Primary and Back-up Protection
• Essential qualities of Protection
• Classification of Protective schemes
• Automatic reclosing – current transformer for Protection -potential transformer – summation transformer – phase – sequence current -segregating network. 

UNIT-2: RELAYS 

• Electromagnetic,
• Attracted and induction type relays,
• Thermal relay,
• Gas actuated relay,
• Design considerations of electromagnetic relay. 

• Relay Application and Characteristics: Amplitude and phase comparators,
• Over current relays,
• Directional relays,
• Distance relays,
• Differential relay Static Relays: Comparison with electromagnetic relay,
• Classification and their description,
• Over current relays,
• Directional relay,
• Distance relays,
• Differential relay.  

UNIT-3: PROTECTION OF COMPONENTS 

• Types & detection of faults and their effects,
• Alternator protection scheme (stator, rotor, reverse power protection etc.)
• Power transformer protection (external and internal faults protection),
• Generator transformer unit protection scheme,
• Bus bar protection
• Transmission line protection (current/time grading, distance),
• Pilot relaying schemes,
• Power line carrier protection. 

UNIT-4: CIRCUIT BREAKING

• Properties of arc, Arc extinction theories,
• re-striking voltage transient, current çhopping, resistance switching,
• Capacitive current interruption,
• Short line interruption,
• Circuit breaker ratings.
• Testing of Circuit Breaker: Classification,
• Testing station and equipment,
• Testing procedure,
• Direct and indirect testing,
• Selection of circuit breakers.
• Constructional features and operation of Bulk Oil,
• Minimum Oil,
• Air Blast, SF6,
• Vacuum and d.c. circuit breakers.

UNIT-5: MODERN TRENDS IN PROTECTION 

• Electronic relays -static relays functional circuits: comparators, level detectors, logic and training circuits,
• Microprocessor and computer based protection schemes
• Software development for protection,
• Security and reliability.

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