查询词典 generator double current

Development of electroplate power has experienced four generations: direct current generator sets incontrollable silicon rectifier controllable silicon rectifier high frequent switch inverter power.

电镀电源经历了四代发展，包括：直流发电机组、不可控硅整流器、可控硅整流器和高频软开关逆变电源。

The cause of generator differential protection maloperation is found out through calculating and analyzing transient process with the test data of current transformer and secondary circuit.

通过对CT和二次回路的试验数据进行暂态计算分析，找出了发电机差动保护误动原因。

A new predischarge trigger generator, that is more simple and stable than the former one, has been designed and fabricated using the car ignition loop DQ128. A Rogowski coil, that instead of the former device can much more accurately measures the current flowing through capillary, has been made and calibrated.

自制了罗可夫斯基线圈，并对其进行了标定，代替原先使用的回流器测量放电电流，解决了无法准确测量流过毛细管电流的问题，为实验分析提供了更准确的依据。

At first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu-lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band-pass filter, alternating amplifier, phase sensitive demodulatorn, pulse-width modulation, frequency scale circuit, moment current generator. Finally, using the graphics program language LabV-IEW which is designed for testing field especially by NI accomplishes the solfware design of testing system,realized the testing functions.

首先对加速度计及其测试技术的发展历史和现状，液浮摆式加速度计的工作原理和数学模型等作了简要的介绍，然后确定了以二元调宽脉冲再平衡测试回路为设计方案，并从控制理论的角度进行了分析，着重研究了系统中各部分的传递函数，利用系统开环传递函数分析了系统的稳定性，同时设计了系统的校正网络；分析了二元调宽脉冲再平衡测试回路的分辨率、采样约束以及测试精度等基本问题，并按照系统分析的结果设计了包括前置放大、带通滤波、交流放大、相敏解调、脉宽调制、频标电路以及力矩电流发生器等测试系统各部分硬件电路，验证了电路的正确性，最后按照测试系统的要求，采用了美国NI公司专为测试领域所开发的虚拟仪器工具——LabVIEW作为测试软件开发工具，利用该图形化编程语言完成了测试系统软件部分的设计，实现了测试功能。

The features of the SEPIC converter has the buck-boost operating mode, positive output polarity, low input current pulsation, and wide input voltage range, suitable for low-power wind generator system in power conversion.

本文研制一独型风发电系统之最大功追踪，所提的系统架构为 SEPIC 转换器，其转换器具备升压，正向输出极性，低脉动输入电，输入电压范围大之优点，适合应用在低功风发电系统电能转换。

Rectifier is not installed, the generator produces a current directly to the battery followed by the system to consume and to have a greater load on the battery installed will enable the supply of power after the stability of demand for power will follow the natural stability of the vehicle power load will naturally improve.

未装设整流器时，发电机产生的电流直接到达电瓶后，随即被系统给消耗并且对电瓶产生较大负荷，装设后可使供应电源稳定，自然需求电源也会跟随稳定，车辆的用电负荷自然会获得改善。

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。

Abstract］ Objective To master current status of health care facilities using electrolyzed oxidizing water generator to disinfect.

目的 掌握医疗机构使用酸性氧化电位水生成器消毒的现况。

The platform of arcing experiment is composed of the arc fault generator and the current monitoring and saving unit, and several load appliances, then recommends the experimental process and the instruct of the equipments.

说明了电弧的基本性质，产生原因和故障电弧的危害，AFCI的结构和故障电弧检测的基本原理和我们研制的AFCI的技术路线。电弧试验半台由电弧发生器，录波设备和负荷设备构成。

Group main products are: three-phase modular overvoltage protectors, high voltage current-limiting fuse combination of protective devices, de-excitation of synchronous generator rotor device, large-capacity high-speed switching device, extinction arc and over-voltage protection device, computer system protection device, intelligent switchgear, etc., series, nearly a hundred kinds of products.

集团主要产品有：三相组合式过电压保护器、高压限流熔断器组合保护装置、同步发电机转子灭磁装置、大容量高速开关装置、消弧及过电压保护装置、微机系统保护装置、智能开关装置等七大系列，近百种产品。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。