High-voltage power transmission and transformation transformer insulating oil quality monitoring system

A high-voltage power transmission and transformation transformer insulating oil quality monitoring system is disclosed, wherein the monitoring system is a sensor system for detecting liquid states inside of equipment; the sensor system for detecting the liquid states comprises more than one kind of sensor; specifically, the sensor system comprises a sensor for detecting a physical parameter, a chemical parameter, a material parameter and a biological parameter of the liquid, a sensor for detecting a state of a surrounding environment outside of a liquid reservoir, a sensor which is used for monitoring a liquid parameter and exposed in the monitored liquid, and a sensor exposed outside of the transformer; the sensor system for detecting the liquid states can perform data transmission through a wireless or wired system; and the sensor system is also provided with a shield box which can reduce interfering noises of the sensors.