您要查找的是不是：
- The Manage Center of Electric Reliability of China. Statistical Evaluation Regulations of DC System. 中国电力可靠性管理中心。直流输电系统可靠统计评价规程。
- The DC system is normally supplied from a battery charger system, which is supplied from the low voltage AC system. 直流系统通常由蓄电池充电系统供电,蓄电池充电系统由低压交流系统供电。
- The battery chargers maintain a charge on the station batteries, which supply power to the DC system if the AC system fails. 蓄电池充电器持续对变电站蓄电池充电。若交流系统发生故障,就由直流系统供电。
- To meet the demand of equivalent anlysis of AC/DC hybrid power grid involving muiti-infeed DC system, a multi-terminal equivalent method is proposed. 为满足含多馈入直流的交直流电力系统等值分析需要，提出了多端等值法。
- Comparing with 50Hz AC system and DC system, we can observe that the use of FFTS will bring a significant capital saving. 最后，对在我国应用分频输电系统的前景及经济效益进行了分析，结果表 明该系统的应用可以节约大量资金。
- Theoretical analysis is used to find the critical point of leapfrog, and then simulating the DC system model tests the results. 采用先理论分析,找到越级的临界点,再用建好的直流系统模型进行仿真验证的方法。
- By introducing one point earthing leading to breaker tripping in DC system, this paper analyses the reasons that breaker may trip when one point earthed in DC system. 通过对直流系统负极一点接地引起开关跳闸的情况介绍,分析了直流系统在一点接地时可能出现的开关跳闸原因,并提出了相应的防范措施和对策。
- The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when three phase unbalanced fault occurs in AC system. 当交流系统发生三相不对称故障时,忽略直流系统负序分量的准稳态模型将给交直流混合系统的仿真带来较大的误差。
- Voltage stabibity trends to be serious in high voltage DC system connected into a weak AC system, and it becomes more complicated in multi-infeed HVDC (MIDC) system. 连于弱交流系统的HVDC电压稳定问题严重，特别是在多馈入交直流系统中。
- Based on the characteristics of DC system and fast decoupling PQ method,this page presents an improved alternative algorithm for power flow of AC/DC system. 阐述了交直流混合系统中监测变压器中性线直流电流的必要性,介绍了监测系统从变电站数据采集到数据发布的一系列过程。
- The dc system is capable of rapid response to changes in control setting, with dc power transfer changes occurring faster than in AC systems. 由于直流传送功率的改变要快于交流系统,直流系统对控制整定值能迅速作出响应。
- Deals with the detailed model of DC system and presents a fast algorithm to calculate the critical fault-clearing time of AC/DC power system using high order Taylor series expansion technique to simulate the fault trajectory of AC/DC power system. 考虑DC系统的详细模型，在应用高阶Taylor级数展开技术模拟交直流联合系统持续故障轨线的基础上，提出了一种快速求取交直流联合系统临界切除时间的方法。
- Circuit configuration. The DC systems planned or in operation involve point-to-point transfer or power. 线路结构。计划中和在运行的直流系统进行“点到点”的功率输送。
- Ground Fault Detection for DC System 直流系统接地检测
- Analysis of Stable Running of Substation DC System 变电站直流系统的稳定运行分析
- Detriment Searching Method of DC System Grounding 直流系统接地危害及查找方法
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- Searching of DC system ground fault 直流系统接地故障的查找
- The line AB cuts the line DC at the point E. AB线和DC线在E点相交。
