Transformer with condition monitoring and failure warning

The utility model relates to a transformer with condition monitoring and failure warning. The transformer comprises a condition monitoring and failure warning device. The condition monitoring and failure warning device comprises a circular-sheet-type temperature sensor (1), a hydrogen testing probe (2), a signal switching module (3) and a data processor (4). The circular-sheet-type temperature sensor (1) is arranged on a floater of an oil level indicator of the transformer so that the situation that the oil surface temperature of the transformer is always accurately measured can be guaranteed. The hydrogen testing probe (2) is adopted to carry out real-time monitoring on the hydrogen content inside an oil tank of the transformer, so that the early failure of the transformer can be judged in time. The data processor (4) is used for collecting all operating parameters of the transformer, analyzing the operating state of the transformer in time and providing a warning function, so that the timeliness for failure processing of the transformer is improved. A novel transformer is provided for an electric system.