Power systems of the future. 3

For pt.2 see ibid., vol.20, no.3, p.10-29 (2000). The assets and working philosophy of individual electric utilities will in large measure be reflected by the modernization of their power systems during the next 20 years. This part looks at the potential for fault current limiters, lightning and restoration preparedness, and advanced delivery technologies (compressed-gas-insulated delivery, evaporative cooling delivery, conducting polymers, electron beam delivery, microwave delivery, and laser beam delivery).