7EE5 SYSTEM ENGINEERING
 

1. ECONOMIC OPERATION OF POWER SYSTEMS: Input-Output curves, heat rate and incremental rate curves of generating units. Economic distribution of load between generating units with in a plant. Economic distribution of load between power stations, transmission loss equation. Unit commitment and dynamic programming method introduction to power system security.

2. POWER SYSTEM STABILITY: Power angle equations and power angle curves under steady state and transient conditions. Rotor dynamic and swing equation (solution of swing equation not included). Steady state, dynamic and transient stability. Synchronizing power coefficient and stability limits. Introductory explanation of equal area criterion and its application. Critical clearing angle and critical cleaning time of circuit breaker use of auto-reclosing circuit breakers. Factors affecting stability and methods to improve stability.

3. EXCITATION SYSTEMS: Types of excitation systems D.C. excitation system, automatic voltage regulator, use of amplifying and magnetic amplifier. A.C. excitation systems. Shunt excitation system, separate excitation system and brush less excitation system. Solid-state automatic voltage regulator (description of block deagram only).

4. INTERCONNECTED POWER SYSTEMS: Reserve capacity of power station, spinning and maintenance reserves. Advantages and problems of interconnected power systems. Power system interconnection in India.

5. VOLTAGE CONTROL: Tap changing transformer, phase angle control and phase shifting transformers. Series compensation of transmission lines, Location and protection of series capacitors, advantages and problems.

RECOMMENDED BOOKS:

1. I.J. Nagrath and D.P. Kothari:Power system engineering.

2. J.J. Grainger and W.D. Stevenson:Power system Analysis.

3. B.R. Gupta:Generation of electrical energy

4. C.L. Wadhwa:Electrical power systems 5. C.M. Aroa:Power system Engineering