time constant of rise 中文意思是什麼
time constant of rise
解釋
上升時間常數-
Under the control of a current loop, the system can make advantage of the motor ' s ability of over - current with a maximum limit, as a result, the motor can implement constant - current staring under a maximum let - through current. therefore, the motor ' s rotational speed can rise at a maximum acceleration and reach the given speed within the shortest time
在電流環的控制下，系統在起動的時候能夠最大限度的發揮電機的過流能力，使電機以最大允許的起動電流恆流起動，則電機轉速可以以最大的加速度上升，並且以最快的時間達到給定轉速。 -
According to many years experience of dealing with client quality complains, the author introduced in brief its principle and content, and laid emphsis on the common quality complains of cement enterprise, such as concrete strength is lack, the concrete setting time is unnormal, the concrete slump constant is a little small and the loss is high, compatibility between cement and admixture is bad, cement color changes, concrete surface rise sand and cement agglomerate
作者結合自己多年處理顧客質量投訴的經驗，簡單介紹了處理顧客質量投訴的調查原則和內容；重點對水泥廠最常見的質量投訴內容包括混凝土強度不足，凝結時間異常；混凝土坍落度偏小，經時損失大；水泥與外加劑相容性不好；水泥顏色變化、混凝土地面起砂及水泥結塊等等投訴，分別進行了現象描述，原因分析和調查方法介紹。 -
On this basis, fortran program is written to solve temperature and velocity fields in transformer. by using this program we can calculate total flow, duct flow, mean temperature rise of transformer oil, oil time constant, mean oil temperature rise in each winding - coil, temperature distribution in each winding - coil, and stable / transient state temperature field. so this program has a great use value
在此基礎上，我們編制了計算自然油導向冷卻的具有餅式線圈變壓器流場和溫度場的fortran程序，程序可以對總油流量，進入各相、各油道的油流量，各線圈內的油流分佈，變壓器的油平均溫升，油的時間常數，各線圈的平均線油溫升，各線圈內的油溫分佈以及各線圈的穩態溫度場、暫態溫度場進行定量模擬，具有較強的實用價值。
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