Sample of Residual Current Device Induction Voltage

This is an example of a signal from an RCD reading. It consists of two conditions 0 for normal condition and 1 for single fault condition. From the signal, It was evident that the peak voltage fluctuated over a certain time. The signal waveform displayed a positive peak and a negative peak alternatively in a comparable amount of time, while lacking any distinct cosine form or fixed values for the peak voltages. It was discovered through measuring that time period that it had the same frequency of 50 Hzas the source of the input. The Main grid voltage is 220 volt AC.