Multi-pole interrupter switch for a high-voltage switching installation

摘要

Provided for each pole is a moving contact set (26, 27, 28) which, on one hand, is always engaged with a fixed-position sliding contact (43, 44, 45) and, on the other hand, can be moved into and out of engagement with at least one fixed-position contact (14, 15, 16), by pivoting. The moving contact sets (26-28) are held by a common supporting body (18), which is supported such that it can rotate and consists of insulating material, and extend radially away from its rotation axis (19), parallel to one another. In order to simplify the construction and, particularly, to improve the operating reliability, the supporting body (18) has continuous recesses (20, 21, 22), which run transversely with respect to its rotation axis (19), for holding in each case one moving contact set (26-28) which, for its part, has contact fingers (29, 30) which are located opposite one another, in pairs, at a distance. Their inner ends extend into the relevant recess as far as the region of the rotation axis (19), while their outer ends extend beyond the one end of the relevant recess. Each of the sliding contacts (43, 44, 45), in contrast, extends from the other end into one of the recesses (20-22) and between the inner ends of the contact fingers (29,30). The interrupter switch is particularly suitable for metal-encapsulated high-voltage switching installations. <IMAGE>