In the processing the sampled data, considering the hardware characteristic of this device and comparing other digital smooth filter, the Savitzky-Golay digital smooth filter has been applied.

• 试验证明，这种算子能很好地完成对原始数据的滤波和平滑处理，为合理、准确地判断断路器运行状态和故障情况提供了依据。