基于暂态波形鉴别的剩余电流保护器校测方法

Calibration and Testing Method of Residual Current Protector Based on Identification of Transient Waveform

当前剩余电流保护器校测方法,后期维护效果较差,内部电流流通性较低,导致校测结果的精准性低。据此,基于暂态波形鉴别提出一种新型剩余电流保护器智能校测方法。依据暂态波形指标鉴别原理,连接不同状态下电流保护器的运行功能;构建剩余电流保护器校测指标,确认保证保护器的状态归零后,选取电流输入数值、电压流通数值以及相位值,按动电压操作按键开启内部电压通过量控制模式。设计相位电路内部传输流程,完成断电检测与电路电量采集;检验不同积分操作电流的整体流向后,采用设计的保护校测结构检验不同方案背景下的校测信息,实现内部保护器信息的共享,由此实现整体剩余电流保护器的智能校测。实验结果表明,所提方法能够有效缓解电流保护器后期维护的压力,提升整体校测的精准度,增强校测的稳定性,具有良好的操作性。

The current residual current protector calibration method,the later maintenance effect is bad,the internal current circulation is low,which causes the accuracy of calibration result to be low.Therefore,a new intelligent calibration method of residual current protector based on transient waveform identification is proposed.Based on the identification principle of transient waveform index,the operation function of the current protector in different states is connected,and the residual current protector calibration index is constructed to ensure that the state of the protector is reset to zero,the current input value,the voltage flow value and the phase value are selected,and the internal voltage pass control mode is opened by pressing the voltage operation key.After checking the whole flow direction of different integral operation current,the protection calibration structure is designed to check the calibration information under different background to realize the intelligent calibration of the whole residual current protector.Experimental results show that the proposed method can effectively alleviate the current protector maintenance pressure,improve the accuracy of the overall calibration,enhance the stability of calibration,and has good operability.