NON-LINE FREQUENCY OPERATION MODE GIS DEVICE PARTIAL DISCHARGE DEFECT SIMULATION APPARATUS

摘要

A non-line frequency operation mode GIS device partial discharge defect simulation apparatus, characterized in that a frequency conversion power source module is provided, a power signal input terminal thereof being connected to a power grid three-phase 380V AC power supply via a cable, and an output terminal of the frequency conversion power module provides AC voltage with adjustable frequency and amplitude; a step-up transformer is mounted in a housing of a GIS structure simulation apparatus, and a low-voltage winding of the step-up transformer is led out to the exterior of the housing of the GIS structure simulation apparatus via a first insulator and a second insulator, and is connected to the output terminal of the frequency conversion power module via the cable; a high voltage output terminal of the step-up transformer is connected to a bus provided in the housing of the GIS device structure simulation apparatus; and one end of a defect model is connected to the bus and the other end is grounded. The apparatus is used for GIS device defect model simulation under a non-line frequency voltage, and acquires GIS device defect model partial discharge signal feature under a non-line frequency voltage.