Novel Differential Protection Approach of UHV AC Transmission Lines Based on Tellegen's Quasi-Power Theorem
IEEE Transactions on Power Delivery(2022)
Abstract
When current differential protection is applied to an AC transmission line, synchronous sampling at the two ends is required. The use of GPS synchronization increases the difficulty and cost of project implementation while the use of ‘ping-pong’ synchronization requires that the communication channel has equal transmission and reception delay. To overcome the impact of these issues, power differen...
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Key words
Circuit faults,Power transmission lines,Synchronization,Impedance,Transmission line measurements,Equivalent circuits,Relays
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