All kinds of electric quantity recorded by fault recorder are complete. It can record current, voltage, zero sequence, negative sequence and switch; the recording mode is flexible. It can record long-term oscillation and long-term voltage, current and frequency overrun, and has comprehensive starting criteria. It can start frequency limit and change rate, identify oscillation, and has high sampling accuracy. Using 12 bit a / D, frequency bit 1000Hz, harmonic resolution of 7 times; sampling modular design, each module is relatively independent, convenient for user maintenance and expansion.

Fault wave recording occurs when the line fault does not record. The first fault phenomenon is due to improper setting of line parameters, which causes the fault wave recorder to be unable to record wave normally. The treatment method is to re calibrate the parameters and provide the appropriate starting mode and starting setting value.

The second fault phenomenon is that there is no normal waveform in the channel when analyzing the waveform after manual recording. Treatment method: the causes of this phenomenon may be poor wiring, poor internal contact, corresponding transmitter damage, front-end machine damage and other reasons. After finding out the causes, corresponding treatment should be taken.

Second, there is a host failure. Fault phenomenon: the device gives an alarm, and the running light in the nixie tube display window is not on. After pressing the test button, there is no wave recording phenomenon. Handling method: the fault may be a host fault, pressing the reset button can not recover, this situation should be handled by professionals.