Non-intrusive winding temperature measurement method for oil-immersed air-cooled pie winding transformer
A cake-type winding and oil-immersed air-cooled technology, which is applied in the field of transformers, can solve problems affecting transformer insulation, sealing performance, complex structure, and ordinary thermometer measurement, and achieve timely and reliable over-temperature alarm and trip signals, and accurate measurement.
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[0048] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0049] A non-invasive winding temperature measurement method for oil-immersed air-cooled cake winding transformers, which is figure 1It is realized on the winding temperature measurement system shown in the figure. On the oil-immersed air-cooled pancake winding transformer, there are transformer riser 3, transformer bushing 1, terminal box 9, air-cooled control box 8, heat sink 6, fan 7, Thermometer oil cup5. The terminal box and the air-cooled control box are installed on the side wall of the transformer. An oil-immersed air-cooled transformer cake winding temperature controller and an ambient thermometer are installed in the terminal box. A meter 10 is installed on the surface of the terminal box. An air-cooled controller is installed in the cold control box. The thermometer oil cup is installed on the top cover of the transformer and an oil su...
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