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A hydraulic power network is a system of interconnected pipes carrying pressurized liquid used to transmit mechanical power from a power source, like a pump, to hydraulic equipment like lifts or motors. The system is analogous to an electrical grid transmitting power from a generating station to end-users. Hydraulic power transmission networks are no longer in use; modern hydraulic equipment has a pump built into the machine. In the late 1800s, a hydraulic network might have been used in a factory, with a central steam engine driving a pump and a system of high-pressure pipes transmitting power to various machines. The best-known hydraulic network was the city-wide network of the London Hydraulic Power Company.
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