| 摘要 |
<p>The present invention relates to a spring-based control device for a high or medium voltage switchgear comprising an actuator circuit and at least one secondary interrupter in which this actuator circuit comprises, between an earth terminal and a power supply terminal, at least one PTC element (20) in series with a first actuator coil (21), an actuator element (22) being disposed in parallel with this PTC element (20), the impedance of this actuator element (22) being greater than that of the first coil (21).</p> |
