【摘要】：為合理指導(dǎo)變壓器負(fù)載限額,確保變壓器正常運(yùn)行,需在其運(yùn)行過(guò)程中對(duì)其內(nèi)部溫度進(jìn)行實(shí)時(shí)監(jiān)測(cè)。針對(duì)變壓器內(nèi)部結(jié)構(gòu)特點(diǎn)研制了1種光纖Bragg光柵(FBG)溫度傳感器,對(duì)變壓器油溫、鐵芯溫度、繞組溫度以及上端部卡件溫度等多點(diǎn)溫度進(jìn)行了監(jiān)測(cè)。監(jiān)測(cè)結(jié)果表明:變壓器工作于額定功率時(shí)其繞組熱點(diǎn)溫度約為83.5℃;上端部卡件在環(huán)境漏磁產(chǎn)生渦流的作用下,其溫度高于頂層油溫的最大值約為3.4℃;鐵芯上、下軛的最高溫度分別為65.3℃、52.9℃;頂層油溫、中部油溫、底層油溫的最大值分別為75.1℃、67.3℃、52.4℃。通過(guò)對(duì)變壓器內(nèi)部多點(diǎn)溫度的直接測(cè)量可為變壓器模型的建立提供數(shù)據(jù)支撐,并為其運(yùn)行狀態(tài)以及負(fù)載限額提供判定依據(jù)。
[Abstract]:In order to guide the load limit of transformer reasonably and ensure the normal operation of transformer, it is necessary to monitor the internal temperature in real time. A kind of fiber Bragg grating (FBG) temperature sensor is developed according to the internal structure of transformer. The temperature of transformer oil core winding temperature and the temperature of upper end clamp are monitored. The monitoring results show that the temperature of the winding hot spot is about 83.5 鈩，

本文編號(hào)：2304470