Mgu University S8 Electrical & electronics engineering Syllabus
Module 1
Switchgear: Circuit breaker – basic principle of operation – arc phenomenon – initiation and maintenance of arc – arc interruption methods – arc voltage and current waveform in AC circuit breaking – re-striking and recovery voltage – current chopping – DC breakers – rating of circuit breakers – breaking capacity – making capacity – short time rating – working principle and important features of oil CB, minimum oil CB, air blast CB, vacuum CB and SF6 CB – auto high speed re-closing.
Switchgear: Circuit breaker – basic principle of operation – arc phenomenon – initiation and maintenance of arc – arc interruption methods – arc voltage and current waveform in AC circuit breaking – re-striking and recovery voltage – current chopping – DC breakers – rating of circuit breakers – breaking capacity – making capacity – short time rating – working principle and important features of oil CB, minimum oil CB, air blast CB, vacuum CB and SF6 CB – auto high speed re-closing.
Module 2
Protective relaying: Main and back up protection – basic requirements of protective relaying – classification of relays – induction type – principle – inverse time characteristics – directional over-current and power relays – distance relays – definite distance and distance time relays – differential relays – negative phase sequence relay – static relays – basic static relay – block diagram of static over-current, static directional, static distance and static differential relays.
Protective relaying: Main and back up protection – basic requirements of protective relaying – classification of relays – induction type – principle – inverse time characteristics – directional over-current and power relays – distance relays – definite distance and distance time relays – differential relays – negative phase sequence relay – static relays – basic static relay – block diagram of static over-current, static directional, static distance and static differential relays.
Module 3
Generator Protection: External and internal faults – differential protection – biased circulating current protection – self balance system – over-current and earth fault protection – protection against failure of excitation
Transformer protection: Differential protection – self-balance system of protection – over-current and earth fault protection – buchholz’ s relay and its operation.
Generator Protection: External and internal faults – differential protection – biased circulating current protection – self balance system – over-current and earth fault protection – protection against failure of excitation
Transformer protection: Differential protection – self-balance system of protection – over-current and earth fault protection – buchholz’ s relay and its operation.
Module 4
Feeder protection: Protection of radial feeders – protection of parallel feeders – protection of ring mains – differential pilot protection for feeders – Merz Price voltage balance system – transley system
Transmission Line Protection: Definite distance and time distance protection – phase and earth fault protection – carrier current protection
Feeder protection: Protection of radial feeders – protection of parallel feeders – protection of ring mains – differential pilot protection for feeders – Merz Price voltage balance system – transley system
Transmission Line Protection: Definite distance and time distance protection – phase and earth fault protection – carrier current protection
Module 5
Surge Over-voltages: Causes – lightning and switching surges – protection against over-voltages – surge diverters thyrite and horn gap types – use of ground wires – insulation coordination.
Wave propagation:
Wave propagation on OH lines and UG cables – transmitted and reflected waves – surge impedance – velocity of propagation
Surge Over-voltages: Causes – lightning and switching surges – protection against over-voltages – surge diverters thyrite and horn gap types – use of ground wires – insulation coordination.
Wave propagation:
Wave propagation on OH lines and UG cables – transmitted and reflected waves – surge impedance – velocity of propagation
References
1. Power System Protection and Switchgear: Ravindranath and Chander
2. Electrical Power Systems: C. L. Wadhwa, New Age Int’l
3. A Course in Electrical Power Systems: Sony, Gupta, Bhatnagar
4. Elements of Power System Analysis: William D. Stevenson
5. Traveling Waves on Transmission Systems: Bewsley L. V.
6. Power System Protection: M. A Date, B. Oza and N.C Nair,
1. Power System Protection and Switchgear: Ravindranath and Chander
2. Electrical Power Systems: C. L. Wadhwa, New Age Int’l
3. A Course in Electrical Power Systems: Sony, Gupta, Bhatnagar
4. Elements of Power System Analysis: William D. Stevenson
5. Traveling Waves on Transmission Systems: Bewsley L. V.
6. Power System Protection: M. A Date, B. Oza and N.C Nair,