Power System II
Hand Written Materials from Reputed Institutions and Faculties
Power System I Full Scanned hand written Lecture Notes for GATE Exams for the Department of Electrical Engineering.
Content :
- Per unit method
- Single line diagram and its significance
- Reactance diagram
- Fault analysis
1. Symmetrical fault analysis
2. Unsymmetrical fault analysis
- Element deletion
- Short circuit
- Frequency occurring faults (earth faults)
- Symmetrical components
1. Positive sequence components
2. Negative sequence components3. Zero sequence components
- Sequence network
- Formulae for sequence voltage
- Line to line faults
- Line to ground fault
- Fault analysis using z-bus
- Economic dispatch (ED)
- Method of lagrangian
- Considering losses (penalty factor method)
- Loss equation
- Power system stability
- Forms of stability
1. Small signal analysis
2. Large signal analysis\transient state stability analysis
- Small signal analysis
- 1. Steady state stability analysis
- 2. Dynamic state stability analysis
- Stability limit
- Voltage stability (Q-V curve)
- Swing equation
- Multi machine
- Equal area criterian (EAN)
- Application of EAC
- Methods to improve transient stability
- Switchgear & protection
1. Circuit breaker 2. Relays 3. Lighting arrestors 4. Fuse
- Arc interruption
- Time multiplier setting (TMS)
- Over current protection of radial feeders
1. Time graded method
2. Current graded method
- Differential protection of xr
- Distance protection
- 3-zone of protection
- Types of distance relays
1. Impedence relay 2. Reactance relay 3. Admittance (or) mho relay
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