Electric arc experiment device

The invention relates to an electric arc experiment device which comprises a cylindrical cavity, a top end assembly, an electric arc assembly, a measuring assembly, a base and a base assembly. The distance between an upper electrode and a lower electrode is controlled by a micrometer-like device in the arc assembly so as to control the length and energy of the arc, arc faults under different energies are simulated, and the oil temperature is increased by a heating pipe in the arc assembly so as to simulate the oil temperature of the oil-immersed power equipment under the normal working condition. A second gas taking valve in the top end assembly and a first oil drain valve and a second oil drain valve in the bottom end assembly are used for obtaining products after arc discharge, and an acceleration sensor in the measuring assembly is used for measuring vibration in a cavity. The pressure transmitter in the top end assembly can obtain the pressure value of the cavity. Changes caused by arc discharge can be ac