IEEE Computer Applications in Power · 1993 · 33 citations · 0 references
EngineeringInformation SecurityElectromagnetic CompatibilityHardware SecurityAnalog UnitsScada SecuritySystems EngineeringCps SecurityNumerical Bus ProtectionPower Electronic DevicesElectrical EngineeringProtection RelaysWide Area MonitoringComputer EngineeringDigital Bus-zone ProtectionPower System ProtectionData SecurityData Center SecuritySmart GridElectrical TransmissionControl System Security
A numerical bus-zone protection scheme that overcomes the drawbacks of analog units was designed and constructed. Both high- and low-impedance measurement schemes for us protection relays were investigated. For the numerical bus protection designed, low impedance measurement schemes are used. The basic hardware structure used in the digital bus-zone protection scheme and two modes of realizing breaker fail protection are described. Hardware and software self-monitoring, design tests and operational experience, and customer training are briefly discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>