首页>
外国专利>
SOLID-STATE TRIP DEVICE FOR A PROTECTIVE CIRCUIT BREAKER OF A THREE-PHASE MAINS SYSTEM, ENABLING THE TYPE OF FAULT TO BE DETECTED.
SOLID-STATE TRIP DEVICE FOR A PROTECTIVE CIRCUIT BREAKER OF A THREE-PHASE MAINS SYSTEM, ENABLING THE TYPE OF FAULT TO BE DETECTED.
展开▼
机译:三相电源系统保护断路器的固态跳闸装置,使故障类型得以检测。
展开▼
页面导航
摘要
著录项
相似文献
摘要
14 SOLID STATE TRIP DEVICE FOR A PROTECTIVE CIRCUIT BREAKER OF A THREE PHASE MAINS SYSTEM, ENABLING THE TYPE OF FAULT TO BE DETECTED The solid state trip device of a protective circuit breaker of a three phase mains system comprises a fault type detection circuit comparing the currents (Il, I2, I3, IN) flowing in the mains system conductors with a first threshold (S1) and a second threshold (S2), higher than the first one. It supplies a signal (A) representative of a certain type of fault, single phase or two series pole, when a first number of currents are lower than the first threshold (S1) and a second number of currents are higher than the second threshold (S2). Refer to figure 2.
展开▼