FEDERKRAFTSPEICHERANTRIEB FUER EINEN HOCHSPANNUNGSSCHALTER.

摘要

In the spiral spring (26) of the spring energy accumulator (10), the energy can be stored in order to switch on the high-voltage switch (56) in order, at the same time, to tension the switch-off spring (58). In order to be able to store the energy for more than one switching on operation, a local pressure store (74) is provided in which sufficient energy is stored to wind up the spiral spring (26) at least one more time. Between the pressure store (74) and the hydraulic motor (12) there is arranged a controllable valve (90) which opens in the event of the spiral spring (26) being partially destressed and hence the hydraulic motor (12) rotates the spring cage (18) in the direction of the arrow (C) until the spiral spring (26) is tensioned again. ……