| 摘要 |
PURPOSE:To test a dynamic characteristic by simulating a sudden rise of internal pressure in the event of a flashover fault of the inside of a test tank, by connecting the tank into which a liquid has been charged and a vessel into which high pressure gas has been charged, by a connecting pipe through a pressure radiating film and an orifice. CONSTITUTION:A feed tank 1 into which insulating oil or water, etc. have been charged and a pressurized vessel 2 into which a high pressure gas body has been charged are connected by connecting pipes 5A, 5B through a pressure radiating film 3 and an orfice 4, and the end part of the connecting pipe 5B is tightly sealed by a partition film 8. Between the pressure radiating film 3 and the partition film 8, gas being about the atmospheric pressure is filled. When high pressure gas is led in through a gas charging valve 7, the pressure radiating film 3 is broken down by prescribed pressure, the partition film 8 is also broken down, and pressure in the test tank 1 rises suddenly. When the charging pressure of the gas body, the breakdown pressure of the pressure radiating film 3, and the diameter of the orifice are varied, and the position of the partition film 8 is adjusted, it becomes possible to execute a dynamic pressure test which has freely simulated a flashover fault in the tank. |
