| 摘要 |
FIELD: electrical engineering; switchgear and control gear. SUBSTANCE: switchgear 1 has grounded metal case 2 filled with insulating gas. Metal case 2 accommodates power circuit breaker 12 and ground switch 14. Current duct for collecting bus 110 and that for outgoing line 200 formed by wire or cable are passed through metal wall of case 2. In addition metal case accommodates collecting-bus disconnecting switch 13 inserted between current duct on collecting-bus end and power circuit breaker 12 that carries outdoor bushing 17 for current duct disposed on collecting bus end. Switchgear 1 enables implementing plurality of switching configurations between collecting bus 110 and outgoing line 200 residing in open space. Separate circuit breakers and switches as well as compact current and voltage measuring transducers 15,15, 17, 18 are also mounted in metal case 2. EFFECT: compact mechanical design and enhanced degree of readiness compared with outdoor switchgear. 26 cl, 8 dwg |
