J P Whiting MSc, C Eng, FIEE Head of Power Systems, IBA
6.9 Transmitter Power System Equipment
6.9.1 Electricity Supplies
6.9.1.1 Generation, transmission and distribution
The generation, transmission and distribution of electrical energy is undertaken internationally at different voltage levels, but a typical system is illustrated in Figure 6.9.1.
From the primary substations the high voltage system, usu- ally between 10 and 13 kV, distributes electricity to the majority of larger consumer loads and also to the urban and rural secondary substations. At the secondary substations, it is trans- formed to between 380V and 450V three-phase and 200V to 260V single-phase for use by the remaining smaller consumer loads. Typical underground and ...
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