US 11,699,559 B2
Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch
Denis Tehlar, Zürich (CH); Martin Seeger, Oberentfelden (CH); Nitesh Ranjan, Wettingen (CH); Patrick Stoller, Illnau (CH); Raffael Buehler, Dübendorf (CH); and Jan Carstensen, Waldshut-Tiengen (CH)
Assigned to HITACHI ENERGY SWITZERLAND AG, Baden (CH)
Filed by HITACHI ENERGY SWITZERLAND AG, Baden (CH)
Filed on Jul. 1, 2021, as Appl. No. 17/365,445.
Application 17/365,445 is a division of application No. 16/773,297, filed on Jan. 27, 2020, granted, now 11,087,939.
Application 16/773,297 is a division of application No. 15/783,183, filed on Oct. 13, 2017, granted, now 10,553,376, issued on Feb. 4, 2020.
Application 15/783,183 is a continuation of application No. PCT/EP2015/057964, filed on Apr. 13, 2015.
Prior Publication US 2021/0327665 A1, Oct. 21, 2021
Int. Cl. H01R 33/22 (2006.01); H01H 33/22 (2006.01); H01H 33/18 (2006.01); H01H 33/70 (2006.01); H01H 33/90 (2006.01); H01H 33/91 (2006.01); H01H 33/12 (2006.01); C07C 49/167 (2006.01); H01H 33/86 (2006.01)
CPC H01H 33/22 (2013.01) [C07C 49/167 (2013.01); H01H 33/122 (2013.01); H01H 33/182 (2013.01); H01H 33/7084 (2013.01); H01H 33/86 (2013.01); H01H 33/90 (2013.01); H01H 33/91 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A device for interrupting non-short-circuit currents only, the device comprising:
at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present, wherein
a counter-arcing component is allocated to the arcing region and is designed for counteracting the generation of the arc and/or is designed for supporting extinction of the arc,
a first contact of the at least two contacts being in the form of a piston,
a second contact of the at least two contacts being in the form of a cylinder,
the first contact being contained by the second contact,
the first contact being slideably moveable in the cylinder,
the piston comprising a front end facing the other contact and a resistive element in a region of the front end sandwiched in an axial direction of the piston between two regions of a material of lower resistance than the resistive element.