Hard-gas AC load-breaking isolator with grounding blades, type ÂÍÏÁ-10-630(400)/20 is intended for closing and opening energized sections of three-phase AC circuits of commercial frequency of 50 Hz and voltage rated at 10 kV. The isolators are mounted as completing items in package switch-gears (factory-assembled switch-gears), one-sided maintenance cells (KCO), package transformer substations and also for replacing load-breaking isolators of obsolete designs being currently in service.

Brief specifications

Parameters Values Rated voltage, kV 6-10 Maximum working voltage, kV 12 Rated current of main circuits, A 400; 630 Switch interrupting current rating, kA 20 Rated current of electrodynamic stability, kA 51 Mass, kg 29 Overall dimensions, mm 390x528x535

Operation conditions

ambient air temperature: from - 40⁰C to +40⁰C
altitude above sea level: not exceeding 1000 m
working environment: explosion-proof