| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas-insulated switch gear capable of detecting line voltage at a lead-in wire without using a large-sized line instrument transformer. SOLUTION: A capacitor type instrument transformer is used as means of detecting a line voltage. Capacitor assembly 33 constituting a main capacitor C1 and a potential dividing capacitor C2 of the capacitor portion of a capacitor type instrument transformer is housed inside a lightning arrester container 11 together with arresters LAv and LAw. A line-side terminal 31a of the main capacitor C1 is connected a high voltage side terminal of a one-phase arrester LAv, and transformer connecting terminals 41 and 42 are taken out from both the ends of tire potential dividing capacitor C2 . A transformer portion of the capacitor type instrument transformer is connected to the terminals 41 and 42.</p> |
