DIAGNOSIS OF OIL-FILLED ELECTRIC MACHINERY AND PORTABLE DIAGNOSTIC DEVICE THEREFOR

Japanese Patent JP3652792

B2

PROBLEM TO BE SOLVED: To provide an oil-filled electric machinery diagnosing method eliminating the necessity separating extracted gas in oil into respective component gases to shorten a measuring time and requiring no skill in operation and easy to correspond in case of emergency and a portable diagnosing device therefor.
SOLUTION: Gas is extracted from the insulating oil 3 collected from oil-filled electric machinery 2 and the obstruction gas in the extracted gas is removed in the presence of a removing agent and the gas in oil is subsequently passed through a detection pipe 7 having predetermined length packed with a filler 6 containing a palladium potassium sulfite soln. and, on the basis of the correlation between the discoloration length of the filler 6 in the detection pipe and the amt. of acetylene gas contained in the gas in oil, the abnormality of the oil filled electric machinery is diagnosed.

Fusao Negishi
Tsubota Sobu
Hiroaki Ujiie
Teruo Muramatsu
Hiroaki Homma

JP16808296A

May 25, 2005

June 28, 1996

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Yuka Industries Co., Ltd.
Tohoku Electric Power Co., Inc.
Komei Rikagaku Corporation

G01N31/00; G01N1/22; G01N31/22; G01N33/28; (IPC1-7): G01N33/28; G01N31/00; G01N31/22

JP62502141A
JP57183226A
JP9072892A
JP8241817A
JP7181175A
JP7029743A
JP794334A
JP6020846A
JP6160379A
JP5243053A
JP5052787A
JP3277941A
JP59119709A

Yukio Shoko

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