SPRING LOADING APPARATUS OF AN OPERATING MECHANISM FOR VACUUM INTERRUPTER

摘要

PURPOSE: A spring loading apparatus is provided to have a structure that the power of a motor is automatically partitioned at inserting a manual operation handle so as to prevent an accident of an operator when the motor is driven during a manual operation. CONSTITUTION: In a spring loading apparatus, a loading operating shaft(35) is capable of connecting a manual operating handle(33) of a rotary type in order to extend a closing spring(31) and is operated manually and automatically by a driving gear(38) which is driven by a motor(36). A ratchet(43) and a loading cam(45) are driven by the loading operating shaft(35), and a crank arm(46) is linked to an eccentric position of the loading cam(45). A loading lever(47) is connected with one end of the crank arm and with the closing spring so as to be supported by a pivot. A closing latch(48) put up the loading cam(45) so as to prevent the ratchet(43) from being rotated by a restoring force of the closing spring extended at a spring loading end point of time.