Diagram of Typical AC Electrical Power Supply System
Block diagram of a typical ac electrical power supply system is shown is Fig. 1.3. Electrical power is generated by 3-phase alternators operating in parallel at the generating stations. The generation voltage is usually 11 kV. It may be 3.3, 6.6 or even 33 kV in certain cases. For economy reasons this voltage is stepped up from 11 kV to [...]