| 摘要 |
<p>The invention relates to a venting system integrated to a roll adjustment slider, used within a transformer or an auto-transformer with voltage load control. According to the invention, the venting system consists of two pieces (1 and 1') which are in permanent contact with the stripped surface of an adjustable and fixed winding (2), by means of some metallic rings (4 and 4'), on a metallic hub (3), provided, in the central area, with some radial channels (a), the assembly thus obtained being placed on a hollow axle (5), provided, in the central area, with an axial slot (b), so that the slot (b) interacts with the radial channels (a) oriented towards the heated area of the contact, inside the hollow axle (5) there being placed an electric micro-meter (6), on whose axle there is mounted a blade (7) of a ventilator which takes over the cold air from the outside and delivers it towards the heated area of the contact, by means of the radial channels (a) and the axial slot (b).</p> |
