WITHSTAND VOLTAGE TEST METHOD OF GAS-INSULATED SWITCHGEAR, AND TRANSFORMER FOR GAS-INSULATED INSTRUMENT

PROBLEM TO BE SOLVED: To provide a withstand voltage test method of a gas-insulated switchgear which allows for simple withstand voltage test without requiring a testing transformer.SOLUTION: Withstand voltage test of a GIS is performed by performing reverse transformation from secondary to primary...

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Bibliographic Details
Main Authors MITANI HIYOSHI, NAKAJIMA SOICHI
Format Patent
LanguageEnglish
Japanese
Published 12.03.2015
Subjects
BASIC ELECTRIC ELEMENTS
BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
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Summary:PROBLEM TO BE SOLVED: To provide a withstand voltage test method of a gas-insulated switchgear which allows for simple withstand voltage test without requiring a testing transformer.SOLUTION: Withstand voltage test of a GIS is performed by performing reverse transformation from secondary to primary by means of a gas VT 12. In other words, the gas VT 12 is configured to perform reverse transformation from secondary to primary, and to generate a test voltage for its main path 14. Consequently, field withstand voltage test of a gas-insulated switchgear can be performed simply. 【課題】試験用変圧器が不要で耐電圧試験を簡易に行うことができるガス絶縁開閉装置の耐電圧試験方法を提供する。【解決手段】ガスＶＴ１２にて二次側から一次側に逆変成し、主電路１４に対して試験用電圧を発生させてＧＩＳの耐電圧試験が行われる。換言すれば、ガスＶＴ１２は、二次側から一次側に逆変成しその主電路１４に対して試験用電圧を発生させるように構成される。これにより、ガス絶縁開閉装置の現地耐電圧試験が簡易に実施可能となる。【選択図】図２
Bibliography:Application Number: JP20130177148