DISCONNECTOR DEVICE WITH PASSIVE RADIO DEVICE, GRID PROTECTION SYSTEM HAVING THE DISCONNECTOR DEVICE, AND METHOD FOR INDICATING A STATE OF THE DISCONNECTOR DEVICE

摘要

A disconnector device (110) is connectable to pole-mounted equipment (120) in a power grid. The disconnector device is activated in case of an overload condition, thereby disconnecting the pole-mounted equipment (120). The disconnector device (110) comprises a passive radio device (100) to be enabled via an incoming radio signal. The passive radio device (100), upon being enabled, transmits, in at least one state of the disconnector device, an indicator radio signal indicative of the respective state of the disconnector device (110), the state being one of an activated state and a deactivated state of the disconnector device (110).