The relay protection and automation devices of "Bresler-01X7" series are designed for use in secondary switching circuits and performing functions of relay protection, automation, control, signalling and RAS, organisation of information and measuring systems of power facilities with network voltage from 0,4 to 750 kV. The device "Bresler-0107.50X" is designed to provide basic protection with absolute selectivity of 110-220 kV transmission lines with power supply from two or more sides and contains a half set of directional high-frequency line protection (HFPL).
The devices "Bresler-0107.51X" are designed for realisation of a set of staged protection of 110-220 kV connection. Bresler-0107.52?" devices are designed to provide basic protection with absolute selectivity of 110-220 kV transmission lines with power supply from two or more sides.
The devices are designed for installation at power facilities and operation in round-the-clock mode.
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