【摘要】 提出了一种基于Rogowski线圈和精密电容分压器的组合电子式互感器.该互感器具有符合IEC60044-7和IEC60044-8要求的数字接口和低能模拟接口,同步时钟的运用保证了多路传感器的工作同步,高压端电路的微功耗设计提高了系统运行的可靠性和稳定性.实验证明系统满足0.2级互感器的要求,同步数字接口的设计满足变电站监测系统对实时性和可靠性的要求.更多还原

【Abstract】 A combined electronic transducer based on Rogowski coil and precise capacitive voltage divider is described. The transducer′s signals are available in both digital format and low energy analog format consistent with IEC standard 60044-7 and standard 60044-8. The employ of synchronous clock ensures the synchronization of multi-channel transducer. The micro-power design of electronics circuit at line potential improves the stability and reliability of the system. Test results prove that the whole system′s accuracy can reach class 0.2. The design of digital interface can meet the real-time and reliability requirements of substation monitoring systems.更多还原