Patent ID: 11972913
Assignee: HITACHI ENERGY LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A disconnector device being connectable to pole-mounted equipment in a power distribution or transmission grid, and being configured to be activated in case of an overload condition, thereby disconnecting the pole-mounted equipment,
the disconnector device comprising:
at least one passive radio device to be enabled via an incoming radio signal, wherein the passive radio device, upon being enabled, is configured to transmit, in at least one state of the disconnector device, an indicator radio signal indicative of the respective state of the disconnector device, the state being one of an activated state and a deactivated state of the disconnector device; and
an activation interactor configured to change the indicator radio signal of the passive radio device depending on the state, the changing the indicator radio signal including changing a frequency characteristic of the passive radio device.