所屬科目:台大◆電機◆電力工程(含電力系統、電機機械、電力電子)
1. Given the 60 Hz, balanced three-phase system shown below, find v (t), (11%)
2. Consider the 60 Hz, 345 KV, completely transposed balanced three phase lines as shown below. The radius of each sub-conductor is 0.9 cm. Find the per phase inductance in H/m and per phase capacitance to neutral in F/m. (11%)
3. Find the radius-and center of the power circle for S = P+ j Q with P as the abscissa (x-axis) and Q as the ordinate (y-axis). (1.1%)
7e. In the square-wave shown below, the amplitude of the fundamental' component is larger than A. [2 pts]