LEAKAGE SENSING SYSTEM FOR GAS-INSULATED SWITCHGEAR OF SUBSTATION

The present invention relates to a leakage sensing system for sensing insulation gas from a gas-insulated switchgear installed in a substation. The leakage sensing system includes: a sealing housing formed therein with a receiving space to accommodate a gas-insulated switchgear in the receiving spac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PARK WOO RAM, KIM SEOUNG YOUNG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The present invention relates to a leakage sensing system for sensing insulation gas from a gas-insulated switchgear installed in a substation. The leakage sensing system includes: a sealing housing formed therein with a receiving space to accommodate a gas-insulated switchgear in the receiving space while sealing the gas-insulated switchgear from the outside, in which the receiving space is filled with gas different from insulation gas; a first sensor installed inside the gas-insulated switchgear to provide a sensing signal while sensing an internal pressure of the gas-insulated switchgear; a second sensor installed in the receiving space of the sealing housing to provide a sensing signal while sensing an internal pressure of the sealed housing; and a diagnosis unit for diagnosing whether there is leakage in the gas-insulated switchgear or the sealing housing and whether the first sensor or the second sensor is faulty based on the sensing signals of the first sensor and the second sensor. 변전소에 설치된 가스절연개폐기의 절연가스 누설을 감시하는 시스템을 제시하며, 내부에 수용공간이 형성되어 상기 가스절연개폐기를 상기 수용공간에 수용하면서 상기 가스절연개폐기의 외부를 밀폐시키고, 상기 수용공간에 상기 절연가스와 다른 기체가 충전되는 밀폐하우징; 상기 가스절연개폐기의 내부에 설치되어 상기 가스절연개폐기의 내부압력을 감지하면서 감지신호를 제공하는 제1 센서; 상기 밀폐하우징의 수용공간에 설치되어 상기 밀폐하우징의 내부압력을 감지하면서 감지신호를 제공하는 제2 센서; 및 상기 제1 센서 및 상기 제2 센서의 감지신호를 기반으로 상기 가스절연개폐기 또는 상기 밀폐하우징의 누설여부 및 상기 제1 센서 또는 상기 제2 센서의 고장여부를 진단하는 진단부를 포함한다.