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Failure Frequencies for High-Voltage Circuit Breakers, Disconnectors, Earthing Switches, Instrument Transformers, and Gas-Insulated Switchgear
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2012
Year
ReliabilityGas-insulated SwitchgearElectrical EngineeringReliability EngineeringEngineeringPower System ReliabilityCircuit BreakersElectrical TransmissionFailure FrequenciesElectrical InsulationPower Electronic SystemsCircuit ReliabilityPower ElectronicsPower System ProtectionInstrument TransformersPower Electronic DevicesPower SystemsElectromagnetic Compatibility
Failure frequencies for circuit breakers (CBs) (only single pressure SF <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</sub> ), disconnectors and earthing switches, instrument transformers, and gas-insulated switchgear (GIS) have been determined through a comprehensive worldwide utility survey. For CBs and GIS, where comparable results from earlier surveys exist, significant reductions in failure frequencies are observed.