Fault recorder is a kind of monitoring device which can automatically record fault information when power system fault or disturbance occurs. According to the electrical quantity recorded by the wave recorder, the operation law of power system under normal and fault conditions can be analyzed, which is of great practical significance to prevent and deal with faults.

The function of fault recorder is complete and has its own system. The fault recorder has 96 analog input, 192 switch input, and 32 or 48 channel fault recorder panel composed of 2 ~ 3 wave recorders. It has the characteristics of flexible expansion and relatively independent operation.

The device has long recording time, complete and uninterrupted recording. It also has perfect intelligent printing and drawing function. When printing and outputting, it can analyze the recording data, automatically determine the drawing scale, and automatically select the parts with changes in electrical quantity. The information report printed out includes fault time, fault element, fault location, fault type, automatic reclosing action, switching action sequence, etc.

Post processing of fault recording data. The data after fault recording can be processed off-line by special software on the machine. It can amplify, shrink, freeze, rearrange, print and output every part of analog quantity and switching value in the whole process of recording data, and can also use card to remotely transmit recording data to dispatching center for analysis and processing.

It has power failure protection function. In case of power failure, real-time clock and recording data will not be lost. And man-machine dialogue function. The setting value, clock and various operation instructions can be directly observed and operated through the buttons and display on the panel.