A device for online and offline detecting local discharging

The utility model relates to an on-line detecting and off-line detecting device for the partial discharge, the chief technical features of which lie in providing a control circuit in the detector case, which is composed of a sensor circuit, a signal conditioning element, a data acquisition card and an industrial computer, wherein the sensor circuit couples the partial discharge signal and is connected with an analog signal input end of the signal conditioning element whose output end is connected with the input end of the data grabbing card, the trigger signal output of the signal conditioning element is connected with a triggering end of the data grabbing card, the I/O card of the industrial computer is connected with the signal conditioning element and the data acquisition card is connected with the industrial computer via a PCI slot. The utility model has the advantages of simple structure, portable function, and low costs, convenient and accurate in detecting.