查询词典 power frequency

Relationships of exciting current, displacement and power frequency are also studied.

设计制作了样机，实现了大步距的双向运动，对励磁电流、位移和通电频率之间的关系进行了探讨。

Mathematical Model of governing system's dynamic characteristicfor condensing turbine、 reheat turbine、 extraction turbine and power frequency turbine are introduced in this paper.

文摘：介绍了研究凝汽式汽轮机调节系统、中间再热式汽轮机调节系统、调整抽汽式汽轮机调节系统及功频电液调节系统的动态特性的数学模型。

This article introduces the new principles of digital proctection for generator transformer unit ,including deviation of power frequency percentage differential relay, variable slope percentage differential relay, asynchronous method of TA saturation recognition, current percentage restricted stator inter-turn relay, etc.

介绍了大型发电机变压器组装置的几项保护新原理，包括发电机工频变化量比率差动、变斜率比率差动、异步法TA饱和判别、电流比率制动匝间保护等。

The GYG-1-240 energy-saving power Frequency Induction melting Furnace, make up of furnace body, sensor, pressure regulator, lean furnace structure, control electricity tank, compensating electric capacity and so on.

GYG-1-240节能型工频有芯熔炼炉，由炉体、感应器、调压器、倾炉结构、控制电柜、补偿电容等部分组成。

After more than ten years rapid development,the Company introduced advabced zinc oxide varristor production equipment,surge arrester manufacturing equipment and 500kVno-partial discharge power frequency test transformer,impulse current generator,300Kv DC high voltage generator,and so on.

公司经过十多年的发展，先后引进国内先进的氧化锌电阻片生产设备、避雷器制造设备及500V工频无局放试验变压器、冲击电流发生器、300kV直流高压发生器等验测试设备。

The characteristics of tube-type and plate-type ozonizers with mesh electrodes under power frequency ac voltages are studied.

在试验装置上测量了不同频率下DBD型臭氧发生器的V-A特性和放电功率，研究了臭氧发生器这种特殊负载的动态电容、功率因数等的变化规律。

Three methods of judging gap Spark-over at power frequency spark-over test on the three phase combinative surge protector of TBP type were analyzed,namely change of indication on ammeter A1,A2 or operation of current relay.

通过对TBP系列三相组合式过电压保护器的工频放电试验，分析了三种判断间隙击穿放电的方法，即电流表A1指示是否有变化；电流表A2指示是否有变化；或电流继电器是否动作及其对放电电压值的影响。

Lightning withstand level ; impulse grounding resistance ; coupling coefficient ; power frequency voltage ; tower ; electro-geometric model

耐雷水平；冲击接地电阻；耦合系数；工频电压；杆塔；电气几何模型

Bipolar pulse high voltage and AC high voltage with power frequency were applied into silent discharge reactor, respectively. The experiment to test decomposition of m-xylene and benzene mixed were done based on this reactor.

将双极性脉冲高压和工频交流高压分别引入无声放电反应器，对混合气态污染物间二甲苯／苯进行了降解实验。

The rated voltage shall be the D.C. or A.C.(R.M.S. at power frequency) voltage which corresponds

额定电压系指对应於额定电力的直流或交流的电压，由下式求得。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。