140DAI54000
140DAI54000140DAI54000
三相異步電動機溫升試驗是為了確定額定負載條件下運行時定子繞組的工作溫度和電機某些部分溫度高于冷卻介質(zhì)溫度的溫升。電機溫升的高低,決定著電機絕緣的使用壽命,所以溫升試驗對電機的質(zhì)量具有非常重要的作用。
一三相異步電動機溫升試驗目的
1、了解發(fā)電機運行時各部分的發(fā)熱情況,核對所測得的數(shù)據(jù)是否符合制造廠的技術條件或有關國家標準,為電機安全可靠運行提供依據(jù);
2、確定發(fā)電機在額定頻率、額定電壓、額定功率因素和額定冷卻介質(zhì)溫度、壓力下,機端能否連續(xù)輸出額定功率值,以及在上述條件下最大出力;
●業(yè)從事(DCS系統(tǒng))(機器人系統(tǒng))(大型伺服控制系統(tǒng))模塊 備件銷售廈門[泰尼電氣有
廈門泰尼備件解決方案銷售中心:
轉(zhuǎn)子流量計在工業(yè)生產(chǎn)過程中應用較廣,可以測量多種介質(zhì)的流量,特別適用于中小管徑和低雷諾數(shù)的中小流量測量。轉(zhuǎn)子流量計結構簡單,靈敏度高,量程比寬(10:1),壓力損失小且恒定,對直管段的要求不高,刻度近似線性,價格便宜,使用維護簡便。但儀表受被測介質(zhì)密度、粘度、溫度、壓力等因素的影響,其精度一般在1.5級左右。
3、確定發(fā)電機在冷卻介質(zhì)溫度和功率因數(shù)不同時,P與Q的關系曲線,為發(fā)電機提供運行限額圖;
4、確定電機的溫度分布特性,即測量出電機各部分的溫度分布,找出規(guī)律,為評價和改進電機結構設計和冷卻系統(tǒng)提供依據(jù);
5、測量定子繞組的絕緣溫降,研究其絕緣溫降變化,在一定程度上可以反應出絕緣的老化狀況;
6、測量電機檢溫計指示溫度、銅導體溫度及繞組平均溫度,從而確定該電機監(jiān)視溫度的限額。
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