电力工程复习习题中英对照题库.doc

《电力工程》复习思考题与习题 教材：《电力工程》，尹克宁，书号ISBN 7-5083-2917-1。 Chapter 1Introduction to power system Please explain the following terms: dynamic system, power system, and power grid, respectively. 。请解释以下条款：动力系统，电力系统，电网， Please give the primary features of electric power production and the basic requirements to power system. 请给电力系统的电力生产的主要特点和基本要求 Please point out the quality indexes of electric power production, and their permissible variation range. 请指出，电力生产的质量指标，他们的允许偏差范围 List out the applications of daily-load curve and annual-load curve in the designing and operation of power system. 列出每日负荷曲线和年度负荷曲线，在设计和电力系统运行的应用程序。 Chapter 2 steady state analysis 1 An 180 km single-circuit three-phase line is shown in this figure, with the following line parameters: . Two step-up transformers (SFL—100000) are paralleled in the sending-end of the transmission line, ，. The power transmitted in this line is 150MW, with load power factor 0.8. 一个180公里，单回路三相线显示在这个数字以下行参数：。两个升压变压器（SFL -100000）并联输电线路的发送结束，,,。在这条线发射功率为150mW，与负载功率因数0.8。 . Determine the voltage and current at the sending-end (high-voltage side), and the voltage loss of the line, according to the short-line equivalent circuit.。确定在发送端（高压侧）的电压和电流，线路电压损失，根据短期线的等效电路。 Determine the voltage at low-voltage side and active power losses of the transformer, according to the simplified equivalent circuit of the transformer. 确定在低压侧的变压器有功功率损失电压，根据变压器的简化等效电路 2 A simple power system is shown in the figure below, and the transformer is rated by(一个简单的电源系统如下图所示，变压器被评为): , ，, with the line parameters as follows(行参数如下): . When the voltage of sending end UA=120kV, solve for The voltage loss in transmission line and transformer, respectively. 在输电线路和变压器的电压损失，分别 The low-voltage of transformer and voltage deviation, when the transformer operating in its rated ratio 低电压互感器和电压差，当变压器运行在其额定比率 3. In a substation, two step-up transformers (SFL—31500/110) are paralleled as shown in Fig. Each transformer is r