1. Computer System for Power System Operation and Control -- 1.1 Computer Control of Power Systems -- 1.2 Functions, Computer Configurations and Control aids -- 1.3 Case Studies of Computerisation in Control Centres -- 2. System control -- 2.1 Economic Load Dispatch for Thermal Power Plants -- 2.2 Load-Frequency Control (LFC) -- 2.3 Automatic Generation Control (AGC) -- 3. Reactive power balance and voltage control -- 3.1 General -- 3.2 Reactive Power Planning and Control Boundaries -- 3.3 Reactive Power Requirements -- 3.4 Reactive Power Balance - Case Study -- 3.5 Reactive Generation and Absorption -- 3.6 Two Case Studies -- 3.7 Reactive Scheduling Procedure -- 3.8 Operating Measures -- 3.9 Modern Trends in Voltage Regulation -- 4. System Security and Quality of Operation -- 4.1 General -- 4.2 Definitions of Operating States, Voltage and Frequency Collapse, Electromagnetic Compatibility and Security Despatch -- 4.3 Security Monitoring -- 4.4 Quality of Operation -- 4.5 Effective Network Utilisation -- 4.6 Sources of Disturbances -- 5. Emergency Control -- 5.1 General -- 5.2 Measures to Prevent Frequency Collapse -- 5.3 Measures to Prevent Voltage Collapse -- 5.4 Prevention of Overloads and Instability -- 5.5 Prevention of Power Disparity -- 5.6 Operation of Generators in Emergency Conditions -- 5.7 Restoration Procedures -- 6. Grid Failures - Case Studies and 'Defence' Plan Against Failures -- 6.1 General -- 6.2 Case Studies -- 6.3 EDF's 'Defence' Plan Against Major Disturbances. -- 7. Effects of Grid Disturbances on Power Station and Consumer Equipment -- 7.1 General -- 7.2 Effects of Low Frequency Operation on Power Station Equipment -- 7.3 Effects of Low Frequency Operation on System Load -- 7.4 High - Frequency Operation During Light Load Periods -- Appendix 1: Dispatching and Control Functions at Various Levels -- Appendix 2 -- Operating Principles of North American Electric Reliability Council (NERC) -- Most Common Terms Used in Power System Operation.