1.1 Introduction+ 2.1 Principle of Transformer Operation+ 2.2 Transformer Nameplate+ 2.3 Basic Structure of Transformers+ 2.4 No-Load Operation of Single-Phase Transformer (1)+ 2.5 No-Load Operation of Single-Phase Transformer (2)+ 2.6 Physical Conditions of Load Operation+ 2.7 Equivalent Circuit of Load Operation+ 2.8 No-Load Test of Transformer+ 2.9 Short-Circuit Test of Transformer+ 3.1 Magnetic Circuit and Electrical System of Three-Phase Transformer+ 3.2 Influence of Circuit Magnetic Circuit on No-Load Main Electromotive Force Waveform + 3.3 Connection Group Marking of Three-Phase Transformer+ 3.4 Clock Notation Method+ 3.5 Determination of Y,y Connection Group Marking of Three-Phase Transformer+ 3.6 Determination of Y,d Connection Group Marking of Three-Phase Transformer+ 3.7 Definition and Conditions of Parallel Operation of Transformers+ 4.1 Basic Knowledge of Synchronous Generators + 4.2 Operation of Synchronous Generators+ 4.3 Armature Reaction of Synchronous Generators (1)+ 4.4 Armature Reaction of Synchronous Generators (2)+ 4.5 Characteristic Curves of Synchronous Generators (1)+ 4.6 Characteristic Curves of Synchronous Generators (2)+ 4.7 Parallel Operation of Synchronous Generators+