IT (information technology) electric power system grounding fault alignment and phasing device matching neutral conductor

• Main Authors: WANG WEI, XING MING, WANG JINQUAN, XU YE, GONG CHENJING, TANG YOUHUAI, YE XIAOSONG
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2012
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model relates to an IT (information technology) electric power system grounding fault alignment and phasing device matching a neutral conductor. The IT electric power system grounding fault alignment and phasing device is provided with a microprocessor unit, a signal unit, a throw switch unit and a Hall current transformer, wherein the signal unit comprises an injection direct-current signal source, a sampling resistor and a voltage meter assembly; the injection direct-current signal source is inputted into the neutral conductor of an IT electric power system, is connected with the sampling resistor in series and is connected into the neutral conductor, the voltage meter assembly is led out from each phase through the throw switch, each-phase output loop of an IT electric power system is provided with the Hall current transformer, the signal unit, the throw switch and the Hall current transformer are connected to a microprocessor unit through field buses, and a detection result is displayed on a d