Power Supply
The Roumoules Transmitter consumes significant amounts of power, supplied by two transformers each capable of providing 5,000 kilowatts (6,700 hp). The power is delivered to the transformers by a 150 kV and a 220 kV power line. The transmitter's power supply is larger than required (an equivalent supply would provide a community of 5000 with its own substation to the 150 kV grid supply). This redundant supply ensures reliable power for the transmitter. There is a backup generating set of 2,460 kilowatts (3,300 hp) on the site and a possibility to supply the station at reduced power from the local 20 kV grid.
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