Hollow dry reactor has a wide range of applications in 10 kV system.Due to the design

environment

manufacturing deviation and other factors

in the long-term operation process

it will occur overheating phenomenon which causes the aging and even short circuit of the interturn insulation of the reactor to burn out.The infrared thermometer used at the present stage cannot measure the hot spot inside the reactor.For this purpose

it checks the insulation envelope of the hot spot.It determines the standard point of temperature measurement by COMSOL Multiphysics simulation results

and designs a temperature measuring device which can be built into a reactor.