Page 5 - Handbook of Electrical Engineering

Contents

Foreword xix

Preface xxi

Acknowledgements xxiii

About the Author xxv

1 Estimation of Plant Electrical Load 1
1.1 Preliminary Single-Line Diagrams 1
1.2 Load Schedules 2
1.2.1 Worked example 5
1.3 Determination of Power Supply Capacity 8
1.4 Standby Capacity of Plain Cable Feeders and Transformer Feeders 12
1.5 Rating of Generators in Relation to their Prime Movers 13
1.5.1 Operation at low ambient temperatures 13
1.5.2 Upgrading of prime movers 13
1.6 Rating of Motors in Relation to their Driven Machines 13
1.7 Development of Single-Line Diagrams 14
1.7.1 The key single line diagram 15
1.7.2 Individual switchboards and motor control centres 15
1.8 Coordination with other Disciplines 16
1.8.1 Process engineers 16
1.8.2 Mechanical engineers 17
1.8.3 Instrument engineers 17
1.8.4 Communication and safety engineers 18
1.8.5 Facilities and operations engineers 18
Reference 18

2 Gas Turbine Driven Generators 19
2.1 Classification of Gas Turbine Engines 19
2.1.1 Aero-derivative gas turbines 19
2.1.2 Light industrial gas turbines 20
2.1.3 Heavy industrial gas turbines 20
2.1.4 Single and two-shaft gas turbines 20
2.1.5 Fuel for gas turbines 23
2.2 Energy Obtained from a Gas Turbine 23
2.2.1 Effect of an inefficient compressor and turbine 29
2.2.2 Maximum work done on the generator 30