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新聞資訊 >> 齒輪換向器的輸入功率應(yīng)該如何確定-

齒輪換向器的負載功率是p2,當(dāng)換向器每小時啟動次數(shù)小于20次的時候，尖峰負荷是額定負荷的1.5倍時，換向器的許用輸入功率計算公式為p2n=p2乘以KA乘以ｓ，
　　當(dāng)換向器每小時啟動次數(shù)為21次-60次之間的時候，換向器的許用輸入功率計算公式是P2ｎ＝1.2乘以p2乘以ka乘以s，經(jīng)計算所得的P2ｎ必須小于或等于換向器額定輸入功率ｐｎ，
　　另外，換向器應(yīng)該是經(jīng)過熱功率校核計算，散熱功率不夠時必須要加冷卻裝置。

齒輪換向器

　　如果換向器的負載功率ｐ2大于其熱功率PG,那么就必須得加冷裝置。熱功率pa是按照環(huán)境溫度為20℃，每天運轉(zhuǎn)10小時，小時負荷率為100%的時候給出來的，校核熱功率時需用ｐ2乘以環(huán)境溫度系數(shù)“ｆ１和小時”，時負荷系數(shù)為ｆ2，計算結(jié)果如果說大于熱功率表中P數(shù)值，那么換向器就必須要采取冷卻措施了。
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