Thermal Simulation Of Transformer Thermometer Measurement Principle
Transformer winding heat is generated by the load loss of transformer. The load loss P=Ir formula shows that, heating is of winding and is proportional to the square of the current. In insulation oil for transformer windings are immersed in, so the windings on the basis of an oil temperature gauge, thermometer, a current match and fitted with a heating element, as shown in the schematic diagram is as follows. Thermometer sensor plug the temperature within the hole on top of the transformer tank. When the transformer load is zero, the winding is not heating, so the thermometer for transformer oil temperature when after load on the transformer, through current transformer output is proportional to the load current, current matching is adjusted through embedded in the bellows of the electric components, electric heating element. The heat generated by the electric heating element, makes increasing displacement of elastic element.