This standard specifies the basic requirements for on-site acceptance, commissioning, inspection, operation and maintenance, inspection, statistical evaluation, and abnormal handling of single-phase ground fault line selection devices for small current grounding systems. This standard is applicable to single-phase ground fault line selection devices (hereinafter referred to as devices) for small current grounding systems of 66kV and below for all levels of power generation, power supply enterprises and power users. Other equipment with single-phase ground protection or line selection functions can refer to the implementation.
T/CSEE 0056-2017 history
2018T/CSEE 0056-2017 Operating rules for line selection device for single-phase grounding fault in small current grounding system