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The vision of the Smart Gird is to be able to connect any device to any other anywhere at any time. The network infrastructure solution looked at is IP-based; an Internet for electricity. Protective relays and teleprotection devices that use data communications as part of its operating principle have very high requirements with regards to latency and reliability. Providing that channel over an IP-based...
This paper is a summary of the IEEE Power System Relaying Committee report. It describes the performance of protective relays during wide-area stressed power system conditions. First, the behavior of protection functions during dynamic operating conditions is described. Then, the lessons learned from studying recent wide area disturbances, as well as the operational history of protection performance...
Communications channels and channel devices for pilot relaying channels traditionally reside in the relay engineers' domain. Today, many conventional communication channels are being replaced by digital communications networks, which are governed by other departments in the utility. The use of these channels for relaying requires the protective relay engineers to have a working knowledge of digital...
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