Variable impedance transformer with oil level detection function and power flow controller

The invention belongs to the technical field of high and medium voltage direct current power transmission and distribution, and particularly relates to a variable impedance transformer with an oil level detection function and a power flow controller. A detection mechanism used for detecting the oil level is arranged in the variable impedance transformer body and comprises a detection pipe fixedly connected to the bottom of the variable impedance transformer body, a plurality of through holes are formed in the side wall of the detection pipe, a floating plate is slidably connected into the detection pipe, and a fixing plate is arranged on the side, away from the floating plate, of the floating plate. A proximity switch is arranged on the fixing plate, the control box is electrically connected with the proximity switch, through the arrangement of the control box, electric signals of the proximity switch are conveniently received, an oil level low alarm signal is sent outwards, and a worker can conveniently mast