查询词典 transformer

When the power system load in a small disturbance, the system itself to maintain the stability of the power transmission capacity, the use of automatic excitation regulator device may reduce the reactance of the generator, and then further to maintain the transformer high-voltage bus voltage constant, so compensation not only its own reactor, but also compensation for the step-up transformer reactance, thus greatly improving the power limits of generators, which greatly increased the static stability of power system.

当电力系统的负载发生微小的扰动时，系统本身保持稳定送电的能力，使用自动励磁调节装置，则可减小发电机的电抗，再进一步维持变压器高压母线的电压恒定，这样不仅完全补偿了自身的电抗，而且还补偿了升压变压器的电抗，这样就大大提高了发电机的极限功率，即大大地提高了电力系统的静态稳定。

The stable and reliable operation voltage of the probe can be given by the following methods:(1) 20% light coupling efficiency is obtained by direct coupling of LD-optical fiber.(2) The light power is transmitted by multi-model optical fiber.(3) The largest photo-electric conversion efficiency is achieved by selecting the transformer regulation of step-up transformer.(4) The stable light intensity is achieved by using LD light feedback of driving circuit and refrigeration.

通过下述方法可提供稳定、可靠的探头工作电压：LD—光纤的直接耦合方式，可实现20％左右的光耦合效率；采用多模光纤传输功率；选择升压变压器最佳变比提高光电转换效率；采取LD驱动电路光反馈以及致冷措施使其发光幅值稳定。

Through be being compared with electromagnetism type transformer and phase of traditional switch plant, the characteristic that introduced switch of electronic type transformer, intelligence and use method.

通过和电磁式互感器和传统开关装置相比较，介绍了电子式互感器、智能开关的特征和使用方法。

Be based on electromagnetism transient to emulate program ATP-EMTP, it is with some 110kV transformer substation exemple build emulation computation model, the article analysed syntonic character of PT of generatrix of side of 35kV of this transformer substation to reach its to invoke an element.

梗概： 基于电磁暂态仿真程序ATP-EMTP，以某110kV变电站为例建立仿真计算模型，本文分析了该变电站35kV侧母线PT谐振特性及其激发因素。

After the trip of the tie line breaker caused by syntony,a series of faults ocurred in a power plant under the operating condition of single generator with heavy plant loads,such as auxiliary transformer tripping, standby transformer short-circuit and generator burnout and so on.

阐述了某电厂由于谐振造成联络线路断路器跳闸后，发电机单机带厂用电重负荷运行情况下。出现厂用变压器跳闸、备用变压器短路及发电机被烧毁等一系列故障。

In this system ,the common APD transformer is replaced by a cheap VPF transformer with high performance , Whle the K style thermoelectric couple is selected as measuring component ,and the cold-end is compensated by its environment temperature measured by integrated temperature sensor AD5901 Hence the accuracy and the capacity of anti - disturbance are greatly improved.

该系统利用廉价高性能的VPF 变换器取代通常的APD 转换器，选用K型热电偶作为检测元件，用集成温度传感器 AD590 测量冷端环境温度进行冷端补偿，从而大大提高了系统的精度和抗干扰能力。

If the customer is responsible for the transformer, the transition point would be the primary of the transformer.

如果客户负责变压器的使用，变压点将是变压器的关键之处。

The design of high frequency transformer, the calculated variable transformer turns ratio and winding

设计高频变压器，计算确定变压器的变比与绕线匝数

The distribution proportion of the transferred power in the forward transformer and flyback transformer is varied with the turns ratio of the transformers.

改变正反激组合式双向DC-DC变换器中正激和反激变压器的匝比配置，可以改变正激变压器和反激变压器传输功率占输出功率的比例。

The operation condition of a series-resonant converter is equivalently analyzed under open-loop condition. OCC condition and selection basis of resonant parameter and switching frequency are determined. The relationships between LED number, transformer turns ratio and constant current error are also determined, which provide scientific basis for the selection of LED number and transformer turns ratio.

文中通过对串联谐振变换器开环工作状态的等效分析，确定开环恒流条件和谐振参数与开关频率的选择依据，以及LED数目、变压器变比与恒流误差之间的关系，为LED数目及变压器变比的优化选择奠定了理论基础。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。