Study on the Residual Current Protection Device Technology

摘要

As an important electrical safety protection device in low voltage distribution system, residual current protectiondevice is to protect the insulation line leakage fau the electric shock of the people plays an important role in fault.From the protection characteristics of residual current protective device to points, those can be divided into, residual currentprotection device for residual pulsating direct current and residual dc, according to the residual sinusoidal alternatingcurrent.