The application discloses an insulation level
online evaluation method applied to a vehicle-mounted
metal closed device, which comprises an insulation main body, a grounding shielding layer, flexible insulation glue, a monitoring sensor, a terminal processor and a
background data analysis center; the grounding shielding layer is uniformly arranged on the outer surface of the insulation main body, the local area of the insulation main body, where the monitoring sensor is arranged, is not provided with the grounding shielding layer, the shell of the monitoring sensor is annularly contacted with the grounding shielding layer after the monitoring sensor is arranged, the shell of the monitoring sensor and the grounding shielding layer completely wrap the insulation main body to form the
metal closed device, the flexible insulation glue is filled between the bottom surface of the monitoring sensor and the insulation main body, the terminal processor is arranged near the insulation main body and is used with the vehicle,
signal transmission is realized through wired connection between the terminal processor and the monitoring sensor, and
data exchange is realized through
wireless connection between the terminal processor and the
background data analysis center. The
metal closed grounding
shielding effect and the
partial discharge detection precision of the insulation main body can be considered, the monitoring principle is scientific and reasonable, the structure is simple and reliable, the
shielding effect is good, the anti-interference capability is strong, the detection sensitivity is high, the cost is low,
economic benefits are outstanding, and technical progress is remarkable.