| 摘要 |
<p>PURPOSE:To dispense with the exclusive antenna of a gas-insulated switch device, by using the mutually opposed embedded metal of a conductor support insulator as the antennae of a voltage detector. CONSTITUTION:A voltage detector 6 is connected to the output terminal 14 of a sealed terminal 4 by a lead wire 5. The output terminal 14 is pierced through the sealed terminal 4 to be connected to the embedded metal 1-1 on an earth side of an insulator 1 by the lead wire 5 and insulated from the container 7 of a gas-insulated switch device by the sealed terminal 4. The insulator 1 is fixed to the container 7 of the gas-insulated switch device at one end thereof by a frame so as to be insulated by an insulating spacer 11. The embedded metal 1-2 on a charge side provided to the other end of the insulator 1 is fixed to a conductor 3 to be measured. In this structure, the embedded metal 1-1 on the earth side is used as the antenna of the voltage detector. This antenna utilizes the electrostatic capacity of the solid insulating material having a large dielectric constant between the two mutually opposed embedded metals in the insulator 1.</p> |
