US 12,087,524 B2
Voltage sensor for electrical switchgear and electrical switchgear comprising same
Vasiliy Viktorovich Koltsov, Moscow (RU); Sergey Ivanovich Malakhovskiy, Chernogolovka (RU); and Dmitriy Anatolevich Sokolov, Moscow (RU)
Assigned to TAVRIDA ELECTRIC HOLDING AG, Cham (CH)
Appl. No. 17/770,210
Filed by Tavrida Electric Holding AG, Cham (CH)
PCT Filed Oct. 27, 2020, PCT No. PCT/EP2020/080179
§ 371(c)(1), (2) Date Apr. 19, 2022,
PCT Pub. No. WO2021/083893, PCT Pub. Date May 6, 2021.
Claims priority of application No. 1915696 (GB), filed on Oct. 29, 2019.
Prior Publication US 2022/0392723 A1, Dec. 8, 2022
Int. Cl. H01H 33/66 (2006.01); G01R 15/06 (2006.01); G01R 31/58 (2020.01)
CPC H01H 33/6606 (2013.01) [G01R 15/06 (2013.01); G01R 31/58 (2020.01)] 20 Claims
OG exemplary drawing
 
1. An electrical switch device comprising:
an electrically insulated casing;
a first electrical terminal connected to a first electrical contact;
a second electrical terminal connected to a second electrical contact;
means for actuating said second electrical contact between an open state and a closed state; and
a voltage sensor for sensing a voltage at the first electrical terminal, wherein said voltage sensor comprises a voltage divider having a voltage input connected to said first electrical terminal, a voltage output between said voltage input and a voltage reference, and a first capacitor connected between said voltage input and said voltage output,
and wherein at least said first and second electrical contacts and said first capacitor of the voltage sensor are provided in said electrically insulating casing, and wherein said first capacitor of the voltage sensor is located in said casing between said first and second terminals.