Protection and control system for electric power networks with signal and command interfaces at the primary equipment

摘要

A system (100) for protection, control, metering, and monitoring of the delivery of electrical power is disclosed. Embodiments of the system provide input/output devices called bricks 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124 to receive analog and binary field data from primary equipment 102 located in a power substation switchyard 150. The bricks are linked via fiber-optic patch cables and patch panels with one or more intelligent electronic devices ("IEDs") 190. In operation, the bricks convert the received binary and/or analog field data into digital signals, and transmit the digital signals synchronously to their associated IEDs using clock signals provided by each IED to the individual bricks. The bricks may accept a computer software code download from each of its master IED(s). Multiple code implementations, each tailored to the requirements of its master IED(s) can therefore co-exist on a single brick.