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Pilot and Numeric Relaying

Pilot and Numeric Relaying

Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:

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Pilot has 'mixed results'

Hilary Graham-Smith

Nursing New Zealand (Wellington, N.Z. : 1995)

|January 27, 2015

Summary

No abstract available in PubMed .

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