AC power systems in British Telecom for the 1990s

The author describes the current developments in AC standby power systems in British Telecom to support its communications network in the 1990s. The design of standby systems and standby engine sets is discussed for systems ranging from 5 MW to 1.5 kW. It is concluded that system designs and specifications have been produced to define a modern, flexible, and highly reliable standby power system for the major switching centres. At the lower end of the scale interest is concentrated in small self-contained packaged engine sets which can be rapidly installed in a minimum of space.<>