CAJ | 학술논문

针对因电网质量及制造工艺等因素造成断路器欠电压脱扣器故障率高、难以解决的问题，研究设计了一种具有自适应自复式过电压保护功能的欠电压脱扣器，其能自动适应电源电压的变化，吸收过电压，钳制脱扣器线圈电压，使欠电压脱扣器的工作范围无高压死区，提高了断路器工作的可靠性。
침대인전망질량급제조공예등인소조성단로기흠전압탈구기고장솔고、난이해결적문제，연구설계료일충구유자괄응자복식과전압보호공능적흠전압탈구기，기능자동괄응전원전압적변화，흡수과전압，겸제탈구기선권전압，사흠전압탈구기적공작범위무고압사구，제고료단로기공작적가고성。
Due to the factors such as electrical network quality and manufacture procedure, the failure rate of circuit-breaker's undervoltage tripper is high and is always difficult to solve. This paper proposes an adaptive undervoltage tripper with overvoltage protection function. It can adapt the supply voltage change, absorb overvoltage, and block undervoltage tripper's coil voltage.That causes the operating region of the undervoltage tripper without high voltage dead area and improves circuit-breaker reliability.