Generators, transformers and power transmission

What this note covers

1. A rotating generator converts mechanical work to electrical energy
2. Connections determine alternating or mechanically rectified output
3. RMS values express the heating effect of alternating current
4. An ideal transformer exchanges voltage and current ratios
5. High-voltage transmission reduces resistive losses at fixed power
6. Transformer losses and measurements require a complete boundary

6 sections · 10 key terms & formulas · 6 common mistakes