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申論題資訊

試卷:104年 - 104 國立中山大學_碩士班招生考試_電機系(丁組):電力工程#110208
科目:中山◆電機◆電力工程
年份:104年
排序:0

題組內容

4. The inertia constant (H) of a three-phase 60-Hz generator is 1.5 p.u.-s. The electrical power delivery by the generator (Pe) versus its power angle (δ ) can be expressed as eq. (2). The mechanical power input to the generator ( Pm) is 0.5 p.u. (25%)

 Pe=1.2319sin(δ) 

申論題內容

(b) Calculate the critical clearing time for the generator when a three-phase bolted short-circuit at the generator terminals causes Pe =0. (15%)