⑵轉子側繞組串聯電阻，將轉子的等效電阻提高為原來的 3 倍（R2 = 0.60 Ω），計算此電動機在額定電壓及頻率時的啟動電流及啟動轉矩。

題組內容

四、三相，Y 接，440 V（線電壓），60 Hz，6 極的感應電動機，其每相等效電路的參數如下：

R₁ = 0.27 Ω，X₁ = 0.88 Ω，X_m = 28.00 Ω

R₂ = 0.20 Ω，X₂ = 1.00 Ω

試求：（每小題 10 分，共 20 分）

三、短篇寫作：請閱讀指示，並依指示寫作。（20 分） In one of her essays entitled “Gender in the Classroom,” Deborah Tannen, a linguist at Georgetown University, argues that boys and girls respond differently to their studies and their classroom interactions vary with different verbal tactics. Do you agree with her or not? To put her argument in a social context, do you think that men and women would respond differently toward critical situations or act differently in decision-making? Write a 300-word essay to state your opinion about this gender issue and be sure to use examples to illustrate your argument.

題組內容

⑵轉子側繞組串聯電阻，將轉子的等效電阻提高為原來的 3 倍（R₂ = 0.60 Ω），計算此電動機在額定電壓及頻率時的啟動電流及啟動轉矩。

相關申論題

相關試卷

題組內容

⑵轉子側繞組串聯電阻，將轉子的等效電阻提高為原來的 3 倍（R2 = 0.60 Ω） ，計算 此電動機在額定電壓及頻率時的啟動電流及啟動轉矩。

相關申論題

相關試卷

⑵轉子側繞組串聯電阻，將轉子的等效電阻提高為原來的 3 倍（R₂ = 0.60 Ω），計算此電動機在額定電壓及頻率時的啟動電流及啟動轉矩。