Internal abnormality detector for gas insulated electric equipment

Abstract

Abstract PURPOSE:To simplify the equipment by bringing a gas generated due to internal abnormality of a gas insulated electric equipment to a liquid to be ionized through a dissociation for determination. CONSTITUTION:A three-way valve 10 is switched over to a sample gas circulation passage to measure the initial concentration of F<-> ion in a liquid 3 with an ion determining apparatus 16. Then, after the three-way valve 4 is switched over to a sample gas introduction port 11 and a fixed amount of a sample gas is sampled and then, it is circulated through the sample gas circulation passage again. When there is an HF gas in the sample gas sucked as generated due to any internal abnormality of a gas insulated electric appliance, the gas is dissolved in the liquid 3 and dissociated and ionized to generate an F<-> ion. With the passage of the circulation time the concentration of the F<-> ion in the liquid 3 increases to reach a balance. At this point, the F<-> ion concentration is measured again to determine whether an internal abnormality of the gas-insulated electric equipment exists or not from the ion concentration. This eliminates the need for a gas chromatograph to simplify the equipment.

Inventors

• 👤 Yoshihiro Makino
• 👤 芳弘 牧野

Bibliographic Details