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Power System Protection is an important course in the under graduate degree level course of Electrical Engineering. The contents of this course are basic philosophy of protection, protection of distribution and transmission lines, equipment protection (generator, transformer, bus bar and motors, numerical relays. Through the series of lectures the concepts of Power System Protection subject will be explained.
Distance relays are very important relays as they are used for high voltage line protection. This video lecture explains the principle of operation of distance relays and their classification. Video also explains the impedance relays.
Power System Protection: Lect-25: Distance Relays-1
Теги
Power systemProtectionRelayCircuit breakerFuseFaultShort CircuitCurrentVoltageTrip circuitCTPTBackup protectionDistribution lineTransmission LineGeneratorTransformerBus barMotorNumericalDigitalPrimary protectionProtection zonePick upResetReachUnder reachOver reachOperating timeFault clearing timeOver current relayDistance relayImpedance relayreactance relayMho relayDifferential relayEarth fault relay