digital cable-fault measuring-testing instrument  数字式电缆故障测试仪

ground measuring  接地检测

ground measuring tester  接地测试器

Measuring Fault  计量故障; 故障

DC ground fault  直流接地

DC System Ground Fault  直流接地

detection of ground fault  接地检测

directional ground relay  定向接地继电器

double line to ground fault  双线接地故障

DUT ground relay  被测试装置接地线切断继电器

field winding ground fault  励磁绕组接地

field winding ground fault protection  励磁绕组接地保护; 励磁回路接地保护

Ground Fault  接地故障; 接地; 接地异常; 单相接地; 接地事故

ground fault current interrupt  接地故障电流中断

Ground Fault Detection  接地故障监测

Ground Fault Detection for DC System  直流系统接地检测

ground fault for DC system  直流系统接地故障

ground fault line detection  小电流接地选线; 接地选线

GROUND FAULT LOCATION  接地故障定位