US 12,136,800 B2
Gas leakage detection system and gas leakage detection method
Kei Takano, Kawguchi Saitama (JP); and Tooru Washiyama, Yokohama Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Energy Systems & Solutions Corporation, Kawasaki (JP)
Appl. No. 17/622,218
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and Toshiba Energy Systems & Solutions Corporation, Kawasaki (JP)
PCT Filed Jul. 19, 2019, PCT No. PCT/JP2019/028444
§ 371(c)(1), (2) Date Dec. 22, 2021,
PCT Pub. No. WO2021/014490, PCT Pub. Date Jan. 28, 2021.
Prior Publication US 2022/0352697 A1, Nov. 3, 2022
Int. Cl. H02B 13/065 (2006.01); G01F 23/16 (2006.01); G01K 1/02 (2021.01); H02B 13/025 (2006.01); H02B 13/055 (2006.01)
CPC H02B 13/065 (2013.01) [H02B 13/025 (2013.01); G01F 23/16 (2013.01); G01K 1/026 (2013.01); H02B 13/055 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A gas leakage detection system comprising:
an electrical apparatus comprising:
a container to which a power distribution apparatus is fixed and in which an insulation gas is contained;
a plurality of divided spaces in the container divided in parallel with a ground;
a plurality of temperature sensors which detects temperature of the insulation gas and which is positioned in the plurality of the divided spaces; and
a pressure sensor which detects a pressure in the container; and
a monitor which calculates a remaining gas amount of the insulation gas remaining in the container based on the temperature of the insulation gas detected by the plurality of the temperature sensors and the pressure of the insulation gas detected by the pressure sensor,
wherein
the container is connected to a circulator to circulate the insulation gas,
the circulator includes a cooler, and
the monitor calculates a total remaining gas amount by adding the remaining gas amount of the insulation gas remaining in the container and a remaining gas amount of the insulation gas remaining in the cooler.