Switch for a switching device, the on-load change-over switch of an on-load tap changer and duration of the main switch and a circuit breaker for this purpose,

摘要

A switch (10) for a switching device (11), in particular duration of the main switch (10) or a circuit breaker (10) for an on-load change-over switch (11) comprises an on-load tap changer– a primarily - discharge contact (13);– a primarily - fixed contact (14);– a first primarily - mobile contact (15) and a second primary - mobile contact (16), the common relative to the primary - discharge contact (13) and the primary - fixed contact (14) are movable in such a way that it comprises a first end position in which it touches the primarily - discharge contact (13) and the primary - fixed contact (14), and a second end position in which they are of the primarily - discharge contact (13) and the primary - fixed contact (14) are separated, can assume;wherein– in the first end position of the primarily - discharge contact (13) and of the primarily - fixed contact (14) between the primary - movable contacts (15, 16) are.