US 12,002,639 B2
Gas shut-off switch
Luis Ranedo Torres, Igorre (ES); and Juan Antonio Sanchez Ruiz, Igorre (ES)
Assigned to ORMAZABAL Y CIA, S.L.U., Igorre (ES)
Appl. No. 17/441,205
Filed by ORMAZABAL Y CIA, S.L.U., Igorre (ES)
PCT Filed Apr. 22, 2020, PCT No. PCT/ES2020/070255
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2020/216976, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. ES201930665U (ES), filed on Apr. 26, 2019.
Prior Publication US 2022/0157544 A1, May 19, 2022
Int. Cl. H01H 33/88 (2006.01); H01H 33/70 (2006.01); H02B 13/035 (2006.01)
CPC H01H 33/886 (2013.01) [H01H 33/7084 (2013.01); H02B 13/035 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A gas shut-off switch (1) provided with various operating positions and intended to be isolated in a dielectric gas inside an electrical switchgear cell (19) comprising at least one housing (2), said housing (2) being structured in two parts, which in turn comprises:
a first part that includes a first arc chamber (6) and a second part that includes a second arc chamber (7), where the first arc chamber (6) incorporates a first fixed contact (3) and the second arc chamber (7) incorporates a second fixed contact (4);
a movable contact (5) having a rotary motion to electrically connect with said fixed contacts (3, 4); and
at least one electric arc blowing means (8);
characterized in that:
an electrical contact and separation between the movable contact (5) and each of the fixed contacts (3, 4) occurs in different arc chambers;
the blowing means (8) is jointly connected to the movable contact (5) to perform a same movement path as the movable contact (5) in the gas shut-off switch (1) opening and closing; and in that
each of the first arc chamber (6) and the second arc chamber (7) comprises at least one communication path (9, 10) with an exterior of the housing (2) that allows both an exit of gases generated in an electric arc blowing and entry of clean dielectric gas in the first arc chamber (6) and the second arc chamber (7).