| 摘要 |
PURPOSE: An apparatus for testing insulation breakdown strength is provided to prevent a soft surface discharge between electrodes by forming a reinforcement molding for preventing a flashover around an upper electrode and a lower electrode. CONSTITUTION: Insulating oil(110) is filled in an oil tank(100). A lower electrode assembly(200) is installed on the bottom of the oil tank. The lower electrode assembly includes a lower electrode(210) and a reinforcing molding(220) for preventing a flashover which is formed on the outer surface of the lower electrode. An upper electrode assembly(300) includes an upper electrode(310) opposite to the lower electrode and a reinforcing molding(320) for preventing the flashover which is formed around the outer surface of the upper electrode. The upper electrode assembly presses the piece received on the upper side of the lower electrode. A terminal rod(312) is extended to the outer side of the upper side of the oil tank from the upper electrode. A handle member(500) is adjacent to the upper side of the terminal rod. A pressing device(600) controls the size of the pressure to press the upper electrode assembly. |
