High-dropout GIL long-term live-line test loop and method under seismic conditions

Abstract

The application discloses a high-drop GIL long-term live-line test loop and method under seismic conditions, which comprises a rigid gas insulated transmission line, a vibration table, a support frame, a feeder bushing and a test system; one side of the rigid gas insulated transmission line perpendicular to the ground is arranged as a counterforce wall in a concave area below the ground; the vibration table is arranged on the counterforce wall; the support frame is installed above the ground in the concave area, the rigid gas insulated transmission line is installed on the support frame perpendicular to the ground, and the rigid gas insulated transmission line is fixed through the vibration table; the top of the rigid gas insulated transmission line is connected with the feeder bushing; and the test system is installed on the ground and connected with the feeder bushing through the line. The counterforce wall and the vibration table are arranged below the ground, the earth is taken as the counterforce wall, and resonance of the counterforce wall itself is prevented when the seismic wave is applied. The layout perfectly reproduces the actual operation condition of the high-drop rigid gas insulated transmission line, and the real performance of the high-drop rigid gas insulated transmission line under the seismic condition can be effectively tested.

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