103 年 - 103 國立中山大學_碩士班招生考試_電機系(丁組)：電力工程#110072-阿摩線上測驗
103 年 - 103 國立中山大學_碩士班招生考試_電機系(丁組)：電力工程#110072
1. Fig. 1 shows a simple loop rotating in a uniform magnetic field. It has the following characteristics
Suppose that a 5Ω resistor is connected as a load across the terminals of the loop.
2. Calculate the geometric mean radius of conductors shown in Fig. 2 in terms of the radius r of an
individual strand. (10%)
4. The impedance matrix () of a power system is
Calculate the short-circuit current for a three-phase fault occurred in bus 2 and determine the bus voltages during the fault (15%).
5. Derive the solution for the following economic dispatch problem by Lagrangian multiplier (15%)