BUSHING-TYPE CURRENT TRANSFORMER FOR AN AIR-INSULATED METAL-ENCAPSULATED MIDDLE VOLTAGE SWITCHING STATION

摘要

The invention relates to an air-insulated metal-encapsulated middle voltage switching station, comprising a number of bushing-type current transformers (BCT) provided with cable connections (CC), which number corresponds to the number of phases. Said bushing-type current transformers (BCT) are removably connected to a transformer supporting sheet (TSS). The inventive bushing-type current transformers (BCT) have square outer edges (SOE) connected to square inner edges (SIE) between which slots with concentric transverse edges (CTE) are provided for clamping said transformers. In the bearing area relative to the post insulator supporting sheets (PISS), the transformer inner edges (TIE) have transformer guiding edges (TGE) and grow smaller into a trapezoid in the direction of the free area, with longitudinal surfaces (LS) facing the transformer inner edges (TIE).