Realization Of Transformer Remote Temperature Measurement By Application Of Remote Data Acquisition

The transformer is in the electrical power system main equipment, playing the role in the electrical power system which links thepreceding with the following. On the one hand, when carries on thelong-distance range electric transmission, in order to reduce the electric transmission to lose, needs voltage magnification, this timethe transformer to play the role which rises to press. On the other hand, in all levels of transformer substations, the transformer needs according to the different user's different need, by to satisfy stepping down of voltage to the different voltage rank the industry and agriculture production the need. Therefore the transformer daily movement maintenance is extremely important, but the transformer temperature monitoring also is a transformer in movement maintenance extremely important content.Today enhances day by day which in the electrical power system automaticity, mainly is by dispatches the personnel to the transformer temperature monitoring to complete through the dispatch automation supervisory system. The traditional transformer far biography measured the warm method is the transformer temperature element measured the warm signal changes delivering through the temperature, transforms for the linear DC voltage signal, again through the scene RTU special-purpose direct current simulation quantity Yuan biography module, passes on the transformer temperature by in the remote survey form. The present paper introduced one kind of brand-new transformer measured the warm far biography method -separate method, it has abandoned the tradition the transformer temperature signal by in the remote survey way the biography, the demonstration mentality, but is fully excavates the existing dispatch monitoring automated system the function, the scene transformer temperature signal through the self-made temperature converter, transforms with the transformer temperature correspondence discrete magnitude, far passes to through the RTU remote letter signal the dispatch monitoring end, carries on the demonstration again in the dispatch end using the monitoring software corresponding formula inversion for the warm measure.In the article, the author to the conventional analogue method and separate method these two kinds different measured the warm far biography method carries on the analysis, the comparison, contrasts respective good and bad points, key to the separate method measured the warm merit has carried on showing. Met down in detail narrates the separate method transformer distant place to measure the warm principle, the realization method and so on have carried on showing. To in this measured in the warm plan the extremely vital role temperature converter (transforms temperature simulation quantity signal into corresponding discrete magnitude) the principle, the hardware electric circuit; Dispatches the temperature return to original state formula which the master station end uses and so on to carry on the multianalysis. The paper in finally to uses the separate method transformer distant place to measure the warm technology has carried on the introduction in the Lvshun electrical network application, and put forward the promoted proposal.