US 12,272,510 B2
Switch-fuse module
Terje Thingstad Pettersen, Skien (NO); Ståle Talmo, Skien (NO); Stanley Lohne, Porsgrunn (NO); and Elham Attar, Skien (NO)
Assigned to ABB Schweiz AG, Baden (CH)
Filed by ABB Schweiz AG, Baden (CH)
Filed on Mar. 8, 2022, as Appl. No. 17/653,977.
Claims priority of application No. 21162047 (EP), filed on Mar. 11, 2021.
Prior Publication US 2022/0293352 A1, Sep. 15, 2022
Int. Cl. H01H 9/10 (2006.01); H01H 3/46 (2006.01); H01H 9/22 (2006.01); H01H 31/12 (2006.01)
CPC H01H 9/104 (2013.01) [H01H 9/102 (2013.01); H01H 9/22 (2013.01); H01H 31/12 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A switch-fuse module having a security device, the switch-fuse module comprising:
at least one fuse; and
at least one fuse canister having the at least one fuse inside;
the security device including:
at least one slider configured to linearly move between an open slider position and a closed slider position;
at least one earthing switch that i) is galvanically connected to an end of the at least one fuse, ii) is operable between an open and a closed state, iii) is designed to earth the end of the at least one fuse in the closed state, and iv) is coupled to the at least one slider in such a manner that the open slider position effects the open state of the at least one earthing switch and the closed slider position effects the closed state of the at least one earthing switch;
an energy-storing propulsion element configured to move the at least one earthing switch from the open to the closed state when discharging; and
a locking mechanism adapted for blocking access to the at least one fuse in a locked state and for releasing access to the at least one fuse in an unlocked state,
wherein the at least one slider is coupled to the locking mechanism in such a manner that the at least one slider is in the closed slider position while the locking mechanism is in the unlocked state,
so that the at least one fuse may only be accessed if it is ensured that the at least one fuse is earthed,
wherein the energy-storing propulsion element is arranged at a back panel of the at least one slider located longitudinally opposed to a front edge of the at least one slider.