Vacuum circuit breaker early warning device of refining furnace

The utility model relates to the technical field of refining furnace early warning devices. The refining furnace vacuum circuit breaker early warning device comprises a transformer, a circuit breakeris installed at the high-voltage end of the transformer, a voltage detection device is installed at the low-voltage end of the transformer, the voltage detection device is electrically connected witha PLC, and the PLC is electrically connected with a human-computer interface and a high-voltage wire inlet cabinet. When the circuit breaker is opened, the phenomena of discharge, arc discharge and creepage occur in the vacuum bag, faults can be detected, an alarm is given, a point inspector is prompted to inspect the faults, and when the fault points are serious, an upper-level circuit breaker istripped, so that the safety of people and equipment is protected. 本实用新型涉及精炼炉预警装置技术领域，更具体地说，它涉及一种精炼炉真空断路器预警装置，包括变压器，变压器高压端安装有断路器，在变压器低压端安装有电压检测装置，电压检测装置电性连接PLC，PLC分别与人机界面及高压进线柜电性相连；断路器在分闸的情况内部真空包内出现有放电、拉弧、爬电现象，能够检测出故障，给出报警，提示点检