THREE-PHASE SELECTOR FOR ON-LOAD TAP CHANGER WITH INSULATED PHASES

摘要

The selector comprises an upper mange (11) and a lower flange (12) connected to insulating segments (13) cut-out of an insulating cylinder. The three phases (A, B, C) are located in tiers, where on the segments (13, 16) are mounted an (14) and odd (15) stationary contact elements. There is also a wide insulating segment (16), located next to not shown preselector. In the middle of this segment are mounted the largest in number fixed contact elements. The tapping contact elements (44, 45) with arms (47) are mounted on both sides of the insulating segment (16) on which are located contact plates (48). In the centre of the selector are mounted an even driving insulating segment (25) and an odd driving isolating segment (30) between the upper flange (11) and the lower flange (12). They are driven in ships by a certain Geneva gear, mounted on the upper flange.