FIELD: electrical engineering. SUBSTANCE: phase difference relay has two rectifier bridges, two comparators, two pulse shapers, two AND gates, NOT gate, and final element. Relay functions to produce not only supply mains and generator voltage indicating signal but also admissible and inadmissible phase error signal for generator and supply mains. EFFECT: enlarged functional capabilities of relay. 3 cl, 2 dwg
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|---|---|---|---|
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|
RU2220471C1 |
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