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Although these parameters can be gained through solving sinusoidal electromagnetic field by FEM, the conversion of end resistance and reactance of damper winding is a tough problem.

当然应用似稳场的有限元分析也是可以确定出这种电机的瞬态和超瞬态电抗以及相应的时间常数。

It is taken as an object researched that a large pumped storage machine with unsymmetrical damper winding, radial pole and three-piece-arc-pole shoe.

本文以具有不对称阻尼绕组、向心式磁极和三段圆弧极靴结构的大型抽水蓄能电机作为研究对象。

The in-depth analyses and simulation calculations of two simplification methods are carried out in this paper. Then it is pointed out that the equivalent d- and q-axes damper winding model is not suitable for calculating the internal short circuits because the concept is not applicable in this situation, and the errors caused by it are too obvious to be accepted in electrical engineering; while the approximate damper cage model is acceptable since it not only meets the accuracy requirement of electrical engineering but also saves calculating time for computers.

本文对阻尼回路的2种简化方法进行了深入分析和仿真计算，指出等效d轴和q轴阻尼绕组模型应用于电机内部短路计算时，物理概念上存在缺陷，且会造成过大的误差、在工程上无法容许；而近似阻尼笼的处理方法既能满足工程精度要求，又可节省计算时间。

The system performance simulation includes starting and breaking characteristics and steady-state characteristics, the results validate the rationality of the model. On above basis, the fault-operation performance of the system is simulated to demonstrate the phase redundancy speciality of multi-phase motor ;then the effect on performance of synchronous motor from damper winding is analyzed to indicate the its significance.

系统性能仿真主要包括系统起动性能，突变特性(突加负载，升频，降频等)，稳态运行性能仿真，仿真结果验证了所建立模型的合理性，在此基础上，对系统故障运行进行仿真，表明了系统相冗余特性；且分析了阻尼绕组在同步电机中的作用，说明了阻尼绕组的必要性与重要性。

A novel model of synchronous machine with damping winding for the transient analysis of power systems is presented.

提出了一种新的适用于电力系统机网暂态过程数值仿真的有阻尼绕组同步电机模型。

Finally there is this great new BMS set that includes a sensorless 15T brushless motor with delta winding and a suitable speed controller, supplied in a handy case, all for a cost effective price and great for those people who want to upgrade from the standard equipment that came with their RTR car.

最后有这个伟大的新的管理系统设置，其中包括一个传感器15T无刷电机绕组与三角洲和一个合适的速度控制器，提供了方便的情况下，所有的具有成本效益的价格和巨大的人谁想要升级从标准的设备，带着他们的RTR车。

3The dissertation makes a deep analysis on the calculation of the equivalent instantaneous inductance of wye-connected transformer. It concludes that the looping current in the winding of delta side of transformer, which is hard to obtain from line current, severely influences the calculation result of equivalent instantaneous inductance. In that case, a new scheme of transformer differential protection is proposed.

深入分析了变压器 Y/Δ接线方式下等效瞬时电感的计算问题，针对Δ侧绕组环流对等效瞬时电感计算结果影响大，而又无法通过线电流计算得到的特点，提出一种变压器差动保护 TA 配置新方案。

For the TA connections of the differential protection for transformer delta side phase winding, the analysis result shows that, there is no difference in the effectiveness for inter turn fault protection, whether it is a bushing TA or not.

但对相间短路故障，三相式变压器△侧绕组差动保护接套管TA时，接法不同，保护效果则不同。

Indication will be displayed on the dial gauge when the oil level is higher than iron core and winding during oiling.

在注油过程中，当油位超过铁心和绕组时，刻度盘上将指示出来。

Ji maze of single-injection molding machine with drip irrigation, mainly by the screw extruder, laser measuring diameter instrument, vacuum forming round, setting the cooling devices, or automatic meter winding machine components.

单冀迷宫式滴灌带注塑机主要由螺杆挤出机、激光测径仪、真空成型轮、冷却定形装置、自动计米收卷机组成。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了