Circuit breaker tripping test system

• Main Authors: WANG JIAN, YANG JIUHE, HU BIN
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model discloses a circuit breaker tripping test system, and relates to the technical field of tripping tests. The system comprises a constant-current power supply, a three-phase circuit breaker, a first control switch, a second control switch and a third control switch, the first control switch comprises a first switch coil and a first normally open contact; the second control switch comprises a second switch coil and a second normally open contact; the third control switch comprises a third switch coil and a third normally open contact; the first switch coil, the second switch coil and the third switch coil are electrically connected with three output ends of the PLC in a one-to-one correspondence manner respectively; a first phase line of the three-phase circuit breaker is connected with the first normally open contact in series to form a first loop, a second phase line of the three-phase circuit breaker is connected with the second normally open contact in series to forma second loop, and a thi