FIELD: electrical engineering, protection of personnel against injury by electric current in AC networks, decrease of traumatism at home and in industry. SUBSTANCE: proposed gear is designed for protective cut-off with operational delay which results in possibility of build-up of selective multi-step protective systems for electric installations. EFFECT: enhanced protective efficiency. 3 dwg
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Authors
Dates
1999-01-10—Published
1997-03-25—Filed