問題詳情
⑵ 208 V、45 kVA、功率因數 0.8 超前、Δ接、60 Hz 同步電機，其同步電抗 2.5 Ω，電樞電阻忽略不計，風阻和摩擦損失為 1.5 kW，鐵心損失 1.0 kW，開始時，轉軸供給負載功率 15 HP，功率因數 0.80 超前，試求：
1.電動機的輸入功率 Pin。（5 分）
1.電動機的輸入功率 Pin。（5 分）
參考答案
無參考答案
內容推薦
- Landmines in many parts of the world pose a deadly _____to civilians.(A) thread (B) throat (C) t
- Please put the magazine back on the_____ when you finish reading it.(A) rack (B) rust (C) racke
- The best thing about_____ flowers is they never need water. (何者為非)(A) imitative (B) fake (C) ar
- 五、⑴何謂同步電動機之 V 形曲線？請繪圖說明。（10 分）
- The steak has been cooked for a long time. Now it should be tender and juicy.(A) crispy (B) hard
- Kris is so_____ that he can’t get through a day without dropping or breaking something.(A) clev
- Harold is a very_____ boy; he plans to be a billionaire by the age of thirty.(A) ambitious (B)
- The mayor earned a good_____ by starting a number of charity programs. (何者為非)(A) name (B) peasa
- ⑵求傳輸給RL的最大功率。（5 分）
- 一、某一塊農田土壤深度 20 公分，面積為 2000 平方公尺，假設土壤總體密度為2 公噸/立方公尺，而顆粒密度為 4 公噸/立方公尺，請詳列計算過程求得該農田土壤：⑴重量為多少公噸？
內容推薦
- It takes a while to_____ stubborn people to change their minds.(A) embrace (B) reemerge (C) con
- That area is being made into a_____ with dozens of container houses for earthquake victims.(A)
- The candidates’ names were all listed on the vote.(A) ballet (B) balloon (C) ballot (D) bamboo
- 線路電流IL。（5 分）
- ＊ 會話 10% (1% for each one)Paul: Did you decide what college to go to? Ken: No, I can’t seem to m
- The oil spill had_____ the lake and killed many of the animals.(A) constructed (B) contained (C
- Regular dinners at home can greatly_____ the bond between family members.(A) shorten (B) rotten
- Ever since Johnny’s girlfriend broke up with him, he has been seeking ways to _____ their relat
- 電樞電流IA。（5 分）
- Bruce: Can I see Doctor Fitch? Linda: Take a seat over there and he’ll be with you soon. Bruce
- In geography class, we learned that lines of _____go around the globe.(A) attitude (B) altitude
- The newest version of this game is now_____ on the Internet for free.(A) ancient (B) shameful (
- If a suspect to _____ the crime he committed, his punishment will be lighter.(A) confesses (B) c
- Jeremy: How was your dinner with the professor?Alex:_____ Jeremy: Sounds like you learned a lot
- My sister came home excited, because she saw her favorite _____at a club.(A) celebrity (B) publi
- Kung fu has always been_____ with traditional Chinese culture.(A) connected (B) involved (C) co
- Clerk: How can I help you today? Sabina: I bought this electric fan yesterday but it doesn’t wo
- The victim received a lot of_____ from the media after the robbery.(A) exposure (B) exports (C)
- Marty: There are no good movies playing in the theater today. Kitty: We should consider renting
- Enid: I would like that medicine over there. Pharmacist:_____ Enid: Isn’t that over-the-counter
- SaudiArabia has long been one of the most conservative countries in theworld. Changes to society hav
- Giselle: I hope that my wedding is as good as this one.Kama: Me, too. The wedding is ending. Are
- students have Facebook accountsthese days and update them daily. Paying so much attention toFace
- (A) on(B) from(C) to(D) with
- Abigail: Good afternoon. How can I help you? Blanche: I would like to mail this parcel to Japan