Distribution lines earth connection detection device based on three -phase symmetrical voltage pours into into

• Main Authors: QU KAIPING, YIN LINFEI, LU JUN, SUN TONG, CHEN YIXUAN, YU TAO, ZHENG BAOMIN, HUANG JUNCHI, LIU MING, XU MAOXIN, CHENG LEFENG
• Format: Patent
• Language: English
• Published: 06.01.2016
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model relates to a distribution lines earth connection detection device based on three -phase symmetrical voltage pours into into. Injecting the distribution lines that awaits measuring into through exporting three symmetrical detection voltage, detecting the current electric current of arbitrary looks among the distribution lines that awaits measuring, according to three symmetrical detection voltage and current electric current, whether the judgement exists the earth connection among the distribution lines if being awaited measuring, and when having the earth connection in the distribution lines that awaits measuring, control and alarm devices sends alarm signal. The utility model provides a whether distribution lines earth connection detection device based on three -phase symmetrical voltage pours into into exists the earthing for work line on effectively judging the distribution lines that awaits measuring, prevents to take the earth connection or the earthing knife -switch power transmission, reduces the earthing for work line and leaks the possibility of examining, ensures power operating personnel's safety.