【題組】73. (A) and (C) so(B) but (D) or
【題組】23. (A)Get ready for ecological changes. (B)Adapt to the new environment. (C)Learn to use new
【題組】74. (A) heritage (C) notion(B) revision (D) version
【題組】24. (A)When all women go out to work. (B)When family planning is enforced.. (C)When a world go
【題組】66. (A)imitate (B)ignite(C) describe (D) ascribe
二、考慮如【圖 2】所示之電力系統,若忽略故障前負載電流,已知故障前電壓為 1.05 pu,試求(計算至小數點第 2 位,以下四捨五入):(3 題,每題 5 分,共 15 分)【題組】(一)匯流排阻抗
【題組】25. (A)Eliminate poverty and injustice. (B)Migrate to other planets. (C)Control the environmen
【題組】(二)設匯流排 1 發生三相短路故障,試利用 Zbus求解次暫態故障電流為多少 pu?又其中由輸電線部分供應之電流為多少 pu?
【題組】26. Passage OneQuestions 26 to 28 are based on the passage you have just heard. (A)To help youn
【題組】67. (A)ones (B)those(C) all (D) none
【題組】(三)設匯流排 2 發生三相短路故障,試利用 Zbus求解次暫態故障電流為多少 pu?又其中由輸電線部分供應之電流為多少 pu?
三、額定為 100 MVA、20 KV 的同步發電機,其正序、負序及零序電抗分別為X1=X2=0.1 pu 及X0 =0.05 pu,又此發電機中性點採電抗接地,且該接地電抗器Xn為 0.2 Ω。若此
【題組】(二)請繪出單相接地故障相序網路戴維寧等效電路(以 pu 表示)。
【題組】27. (A)Road accidents. (B)Street violence. (C)Drug abuse. (D)Lung cancer.
【題組】68. (A)into (B)beyond(C) among (D) through
【題組】28. (A)It has changed teens’ way of life. (B)It has made teens feel like adults. (C)It has acc
【題組】(三) a 相故障電流大小為多少 KA?
【題組】29. (A)Customers may get addicted to the smells. (B)Customers may be misled by the smells. (C)
四、兩部相同的三相 Y 接同步發電機G1與G2並聯運轉,每部之同步電抗每相為Xs=50 Ω,若電樞電阻不計,磁飽和所引起的影響亦不予考慮。設輸出線電壓為 6.6 KV、總輸出功率為800 KW,功率因
【題組】69. (A)resolved (B)realized(C) accepted (D) assured
【題組】30. (A)Flexible. (B)Critical. (C)Supportive. (D)Cautious.
【題組】70. (A)pursuing (B)protecting(C) contesting (D) contending
【題組】71. (A)complex (B)compatible(C) comparative (D) competitive
【題組】72. (A)humor (B)horror(C) excitement (D) extinction
【題組】31. (A)The flower scent stimulated people’s desire to buy. (B)Stronger smells had greater effec