PHASE-DIFFERENCE RELAY Russian patent published in 2004 - IPC

Abstract RU 2241273 C1

FIELD: electrical engineering; relay protective gear responding to difference in supply mains and generator phases.

SUBSTANCE: proposed relay has five threshold units, AND gate, reversible counter, pulse counter, two switches, OR gate unit, RS flip-flop, final element, clock generator, monostable multivibrator, short-pulse shaper, averaging filter, three OR gates, subtraction unit, two-way limiter, adder, and two rectifiers.

EFFECT: enlarged functional capabilities.

1 cl, 1 dwg

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RU 2 241 273 C1

Authors

Shurdov M.A.

Dates

2004-11-27—Published

2003-06-03—Filed