发电机

Dynamic performances during sudden changes in load are analyzed and simulated. It emphasizes on the processes of three-phase sudden short circuit in machines terminal and self-excitation capacitor switching off. The effect of the instant at which the induction generator is short circuited on the maximum current is showed.

研究了异步发电机定子机端突加和突减对称负载时的暂态过程，着重分析了三相突然短路和自激电容突然断开时电流变化情况，说明了不同突然短路时刻对最大电流的影响。

Load forecasting for power system is one of the important task of power utilities. Accurate load forecasting is helpful to planning generators starting and stopping in the interior of the electrical networks economically and reasonably, preserving the security and stability of power system, reducing the unnecessary circumvolving repertory capacity, making planning to overhaul the units in reason, ensuring the normal production and life of the society, effectively reducing the cost of generating electricity, increasing the economical and social benefit.

电力负荷预测是供电部门的重要工作之一，准确的负荷预测，可以经济合理地安排电网内部发电机的启停，保持电网运行的安全稳定性，减少不必要的旋转储备容量，合理安排机组检修计划，保证社会的正常生产和生活，有效地降低发电成本，提高经济效益和社会效益。

Nowadays, the common application of compensation devices is an externally commutated thyristor inventor.

目前，在国内外船舶中，主要采用可控硅逆变器式的轴带发电机。

In a small thermo-power plant,an segregation accident occurred in the process of concreting a C15 turbogenerator foundation .

某小型热电厂一台C15汽轮发电机在汽机基座浇筑过程中出现混凝土离析事故。

That the earth has an iron-rich liquid core, sufficient energy to drive convection and a Coriolis force to twist the convecting fluid are primary reasons why the geodynamo has sustained itself for billions of years.

地球拥有富含铁的液态核心、足够的能量驱动对流，并具有科氏力可使对流的流体扭转，这些是地球发电机之所以能自我维持数十亿年的主要原因。

Based on the sixth-order machine representation, the accelerating power is decompounded to two components: the power component directly contributed by the PSS and that without the PSS effect.

基于发电机六阶模型，把加速功率分解为PSS贡献的功率分量和不计PSS影响的分量，依据加速功率在复平面上的位置，确定了PSS的有效补偿相位区间。

The base of the alternator has wooden dowels in it, so that all the parts can be exactly located in their proper position whenever the unit is assembled.

基地的发电机已在木制销，所以，所有的零件可以完全位于其适当的位置时，该单位是组装。

We are all of us dynamos.

我们都是自己的发电机。

Many local dynamos, conversely, take full advantage of the cheap workforce at their disposal.

而许多&本地发电机&，相反的，充分利用可以支配的廉价劳动力。

The engine was intended for the direct drive of dynamos.

发动机的用意是为直接驱动的发电机。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐