| 摘要 |
A multiple relay arrangement comprises a common fixed part having permanent magnets, a common movable part having permanent magnets, and fixed coils having magnetically actuable movable cores connected to a respective contact means. To establish an electrical contact through the coupling means of the multiple relay arrangement, current is passed through the coil in one direction and through the remaining coils in the opposite direction. In the contact making state, the core will be repelled by the permanent magnet on the fixed part and attracted by the permanent magnet on the movable part. The coupling means connected to the core can then be used to connect together telecommunications conductors for instance. Remaining cores are attracted by the fixed permanent magnets and not moved, although the movable part will be moved away from the fixed part by virtue of the repulsion force acting between the cores and the magnets. |
