Method for monitoring unusual signs in gas-charged apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsToshiro Oitate, Yasuo Kinjo, Masami Ikeda
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Abstract
A method for monitoring unusual signs such as partial heatings and partial electric discharges in an apparatus to be monitored, in which a sealed gas is enclosed into a tank containing the apparatus, and at least one of monitor gases represented by formulas (I) and (II), C.sub.n X.sub.2n (I) C.sub.n X.sub.2n+2 (II) wherein X is at least one of H, F, Cl, Br and I, and n is one of 2, 3, 4 and 5, is charged into the tank, and in which a reaction product gas of the monitor gas, generated due to an abnormality of the apparatus to be monitored, is detected using a detector. A gas-charged apparatus including an unusual sign monitor is also disclosed.
Claims7
A method for monitoring abnormal states in an apparatus to be monitored, comprising:
- enclosing an insulating gas into a tank containing an apparatus;
- adding to said insulting gas at least one monitor gas selected from the the group consisting of gases represented by formulas (I) and (II),
- C.sub.n X.sub.2n (I)
- C.sub.n X.sub.2n+2 (II)
- wherein X is at least one of H, F, Cl, Br and I, and n is one of 2, 3, 4 and 5;
- and
- detecting a reaction product gas produced by a chemical reaction of the monitor gas within said tank, geneated due to an abnormal state of the apparatus to be monitored, using a detector.
Dependencies are inferred from the claim text.