| 摘要 |
<p>A substrate is arranged between single pole breaking units (110a-110d). A link mechanism rotatably supported on substrate, provides a compensating rotation moment to driving shafts (152) so that contact force between contactors in a single pole breaking unit far from a switching mechanism (150), is smaller than the force between the contactors in other breaking units. The springs have one end supported by substrate and other end supported by link mechanism to provide an elastic force to link mechanism for providing compensating rotation moment.</p> |
