| 摘要 |
<p>The invention belongs to the field of devices for electronic surge protection, more precisely for a mechanism in a base part in combination with actuating elements of an overvoltage circuit breaker that allows simple electronic and position signalisation of a state of a surge protective device. The essence of the mechanism for signalling disconnection in a surge protective device of the invention lies in that due to mechanical links between individual module parts a rotational disc gets moved after a protective module has been disconnected and a tooth of the rotational disc disengages from a tooth of a plate in the base of the module and moves the plate to the left. Because of a spring, a pin of an actuator in the base part moves vertically into a round opening on the plate. As a side wall of the actuator is shaped in a slant manner, a switch of a micro switch is released, which micro switch electronically signalises disconnection. As the rotational disc moves its cylindrical holder simultaneously runs on a bend of the upper plate and actuates a button that moves and mechanically indicates module disconnection.</p> |
