Regarding the earthing system and foundation heating problem of 66 kV dry-type hollow reactor in a 750 kV substation

in order to accurately analyze the reason and take corresponding measures

firstly infrared temperature measurement was used to identify and determine the source of heat

then

we replaced the grounding system metal

analyzed structure of the reactor infrastructure

tested the conducting performance of steel reinforcement inside the foundation

simulated the earthing system of the reactor

analyzed the effects of circulation heating and eddy current heating comprehensively

the causes of fever were identified and corresponding measures were put forward. Finally

it was concluded that the eddy current of the conductive material in the magnetic field was the cause of the heating of the flat iron grounded in the reactor

the heating of the reactor base was caused by the metal ring in the raft.