Zero sequence voltage sensor with voltage regulator

• Main Authors: ZHANG JIAYI, WU PENGZHI, YAN BO, YAN GUANGYI, CAO NAIQING, XU QISHEN, LIU BINGMENG, YUAN GANG, GU ANNA, ZHU HONGLIN
• Format: Patent
• Language: Chinese; English
• Published: 03.06.2022
• Subjects: CONTROLLING; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES; TESTING

The invention discloses a zero-sequence voltage sensor with a voltage regulator, which belongs to the field of distribution network automation and comprises three three-phase voltages for outputting secondary signals and a zero-sequence voltage sensor for outputting zero-sequence voltage secondary signals. The zero sequence voltage sensor comprises a capacitive voltage divider and a voltage regulator; the voltage regulator is connected between the capacitive voltage dividers and the secondary signal receiving end, the three capacitive voltage dividers form triangular connection corresponding to the opening of the voltage regulator, the voltage regulator is integrated to the secondary signal output side of the sensor, the precision of the sensor is effectively improved, the measurement range is expanded, and due to the regulation function of the miniature voltage regulator, the measurement precision is improved. A screening procedure can be omitted, the manufacturing qualification rate is improved, and the pro