Definition: | distance relay, whose characteristic, when plotted on a rectangular coordinate system with resistance as X axis and reactance as Y axis, is a circle, the circumference of which does not pass through the origin Note 1 to entry: Other than in the designation of relays, the term "mho" (reciprocal of the term "ohm") has been replaced by "siemens" (1 S = 1 / Ω) as an SI unit of electric conductance.
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