SWITCHGEAR

摘要

For the purpose of obtaining a switchgear that can perform a reliable operation, the switchgear includes: opening and closing coils that drive a movable element, opening and closing capacitors that supply energy to the coils, opening and closing control sections that perform control of charging the capacitors and of energizing the coils, an opening coil that drives the movable element to the open side, an opening capacitor frat supplies energy to the coil, a second opening control section that performs control of charging the opening capacitor and of energizing the opening coil, and an interlock circuit that energizes the second opening control section; and a signal showing that the second opening control section is in operation is supplied to an interlock circuit.

主权项

1. A switchgear comprising:
a closing coil that drives a movable element to the close contact side of said switchgear in an electromagnetic operating device; a closing capacitor that supplies electrical energy to said closing coil; a closing control section which Is connected between said closing coil and said closing capacitor, and performs control of charging said closing capacitor and of energizing said closing coil; an opening coil that drives said movable element to the open contact side of said switchgear In said electromagnetic operating device; an opening capacitor that supplies electrical energy to said opening coil; an opening control section which is connected between said opening coil and said opening capacitor, and performs control of charging said opening capacitor and of energizing said opening coil; a first interlock circuit that energizes said closing control section or said opening control section; a second opening coil that drives said movable element to the open contact side of said switchgear In said electromagnetic operating device; a second opening capacitor that supplies electrical energy to said second opening coil; a second opening control section which Is connected between said second opening coil and said second opening capacitor, and performs control of charging said second opening capacitor and of energizing said second opening coil; and a second interlock circuit that energizes said second opening control section, wherein either said opening coil or said second opening coil is enabled to drive said movable element to the open contact side of said switchgear, and wherein the operation of said closing control section is blocked on the basis of a signal showing that said second opening control section is in operation.