DEVICE FOR PROTECTING FROM SINGLE-PHASE FAULT TO EARTH FOR MAINS WITH ISOLATED NEUTRAL CONDUCTOR

摘要

use: u0434u043bu00a0 of relay protection of electric circuits on the ground. the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0: introduction of converters u043du0430u043fu0440u00a0u0436u0435u043du0438u00a0 6 - 9, a comparator 10 to 13 with u0438u043du0432u0435u0440u0441u043du044bu043cu0438 exits, u043eu0434u043du043eu0432u0438u0431u0440u0430 sound 14,15, silt and not logical elements 16, 17, and 18, 19 and 20 of the delay u043fu043eu0437u0432u043eu043bu00a0u0435u0442 enhance selectivity of protection when working in u043bu0438u043du0438u00a0u0445 longitudinal u044du043bu0435u043au0442u0440u043eu0441u043du0430u0431u0436u0435u043du0438u00a0. 1 il.