US 11,972,913 B2
Disconnector device with passive radio device, grid protection system having the disconnector device, and method for indicating a state of the disconnector device
Yannick Maret, Dättwil (CH); Alexander Fach, Boppelsen (CH); Gian-Luigi Madonna, Otelfingen (CH); Xavier Kornmann, Lauchringen (DE); Stefano Bertoli, Wettingen (CH); Ektor Sotiropoulos, Horgen (CH); Daniel Neeser, Thalwil (CH); and Martin Schick-Pauli, Zürich (CH)
Assigned to HITACHI ENERGY LTD, Zürich (CH)
Appl. No. 17/602,749
Filed by Hitachi Energy Ltd, Zürich (CH)
PCT Filed Apr. 9, 2019, PCT No. PCT/EP2019/058946
§ 371(c)(1), (2) Date Oct. 9, 2021,
PCT Pub. No. WO2020/207564, PCT Pub. Date Oct. 15, 2020.
Prior Publication US 2022/0165521 A1, May 26, 2022
Int. Cl. H01H 31/00 (2006.01); H01C 7/10 (2006.01); H01H 9/16 (2006.01); H02J 13/00 (2006.01)
CPC H01H 31/003 (2013.01) [H01C 7/10 (2013.01); H01H 9/168 (2013.01); H02J 13/00022 (2020.01); H01H 2300/032 (2013.01); H02J 2310/44 (2020.01)] 17 Claims
OG exemplary drawing
 
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.