Differential relay

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5-4-190

A relay having two windings so connected that when these windings are energized simultaneously their magnetic effects neutralize each other.

Reference: I.E.C.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

charge current

Intensity

Illuminance

Energy

Contrast

Celsius (previously Centigrade)

Capacitance

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM