SERIES TEL RECLOSER (OVERHEAD LINE CIRCUIT BREAKER) Russian patent published in 1999 - IPC

FIELD: overhead power transmission lines of primarily medium voltage class. SUBSTANCE: recloser has vacuum switch whose contact leads are essentially recloser current leads and through-type current transformers mounted on current leads. All mentioned components are provided with solid transparent insulation and are placed in metal case. Poor sealing of case does not produce serious impact on recloser serviceability as all its current-carrying parts are insulated. Current leads are connected to insulated conductors by means of trunnion-type clamps and shielded by environment-resistant rubber insulation. Bottom part of case is made of bullet-proof glass , type LEXAN, which enables viewing recloser position indicator thereby visually checking vacuum switch for normal operation. EFFECT: improved reliability, reduced size and manufacturing cost. 2 dwg