| 摘要 |
<p>PURPOSE:To prevent an error action from being generated due to light generated at the time of interruption, by providing the high tension side with the detecting section of a photoelectric CT, and the earthing side with a photoelectric converter, to have lenses at both the ends between both the sides, and by connecting both the sides with the cylindrical units of insulations having the supplementary feed ports of SF6 gas. CONSTITUTION:The internal section of a gas vessel 1 is provided with a breaker section 2, a stator side conductor 3, and a mover side conductor 4. On the peripheries of the respective high tension conductors 7' of both the conductors 3, 4, photoelectric CT detecting-sections 7 are arranged. At the lower section of the vessel 1, the cylinders 5 of insulations are arranged, and on the covers 5' of the upper section and lower section, lenses 25 are fitted. The upper lens 28 is connected to the photoelectric CT detecting-sections 7 via optical fibers 22, and the lower lens 28 is connected to a photoelectric converter via the optical fibers 22. On one side of the covers 5', an SF6 gas inlet A is set, and via an SF6 cracked gas adsorbing member, SF6 gas is supplementarily fed to. As a result, disturbance light is prevented from being infiltrated to a photoelectric signal space transmitting section at the time of current interruption, and the lenses are prevented from being damaged due to the SF6 cracked gas, and measuring precision is improved.</p> |
