高电压

An optimal filter is designed specially for dq transform used in the voltage mea-surement of transfer switch,which is composed of lower-order notch filter and lower-order low pass filter with higher cut-off frequency in series.Its transfer function is presented by theoretical derivation.If the order is same,it is better in measuring the positive sequence of fundamental amplitude than the average filter and the low-pass filter.

针对转换开关电压检测法——dq变换设计了优化滤波器，该滤波器是利用低阶陷波滤波器和较高截止频率低阶低通滤波器串联形成的，通过理论推导给出了该滤波器的传递函数，在相同的滤波阶数下，该优化数字滤波器在提取基波正序幅值的性能比较中，优于平均值滤波法及低通数字滤波器法等。

The circuit on which the ballast is tested is to be protected by Class H non-renewable fuses at ten times the input current rating of the ballast or the next higher ampere fuse rating but in no case less than 20 amperes.

被测试的镇流器的电路由H级的不可再生的保险丝(是镇流器的额定电压的十倍)保护着的或者是更高安培的熔丝额定值，但是决不能少于20安培。

The circuit on which the ballast is tested is to be protected by Class H non-renewable fuses at ten times the input current rating of the ballast or the next higher ampere fuse rating but in no case less than20 amperes.

被测试的镇流器的电路由H级的不可再生的保险丝(镇流器的额定电压的十倍)护着的或者是更高安培的熔丝额定值，但是决不能少于20安培。

Taking the uncertainty of injected node active power into account, interval linear equations are solved with interval Gauss elimination method in the proposed algorithm.

该算法考虑了节点注入有功功率的不确定性，采用区间高斯消去法求解区间线性方程组，得到母线电压相角和支路有功功率的上下限，即区间潮流方程的区间解。

After analyzing all the interface layers of the structure, a new sensitive model based on the Gauss theorem and the charge neutrality principle is created in this paper.

本文在分析传感单元各个界面层电荷的基础上，应用高斯定理和系统电中性原则建立了新结构器件阈值电压的敏感模型。

This series of generating set is an perfect combination of our newly-developed TFDW4 single-phase brushless synchronons generator and Such outatanding gasoline engines as YAMAHA made in Japan, which appears small in size, light in weight, easy to start, low in fuel conswmption and noise production with a stable voltage and frequency output.

本系列发电机组，是我公司新一代TFDW4单相无刷发电机与日本雅马哈等名牌发动机完美的结合，稳定的电压和频率输出及体积小、重量轻、起动方便、油耗低、噪音低等特点，充分地体现了高性能、高质量发电机组所应具备的要素，是银行、小型餐厅、娱乐场所、家庭及牧场的理想电源。

Our series GF generating set consisting of series 190 diesel engine developed jointly by Jinan Diesel Engine Works and AV、L Austris, series 1FC6 LIUZHOU--SIEMENS generator, control panel, shaft coupling and common base,is noted for its excellent performance, high reliability, slight fluctuation, stable voltage output as well as being easy to operate and maintain.

本系列机组由济南柴油机厂和奥地利索斯特内燃机测试设备公司共同研究开发的190系列柴油机、柳州——西门子1FC6系列无刷同步发电机、控制屏、联轴器及公共底座等主要配套部分组成，具有电压稳定、波动率小、可靠性高、使用维护方便等特点。

However, germanium transistors are relatively expensive, so use them only in applications requiring low-input-voltage operation.

然而，锗晶体管价格相对高些，所以只在需要低输入电压的应用中使用。

This article high accuracy, good dynamic performance, the working frequency band of the Hall voltage and current sensors, and the American Analog Digital introduced single-chip high-speed 12-bit successive comparison converter AD574, as well as RS485 and other communication devices designed a set of electrical quantities collection and monitoring system.

本文将精度高，动态性能好，工作频带宽的霍尔电压，电流传感器，与美国模拟数字公司推出的单片高速12位逐次比较型转换器AD574，以及RS485通讯器件等设计了一套电气量采集与监控系统。

With the merits of space vector modulation: digitized control,harmonic decrease,high ratio of voltage used,fast dynamic response and so on,and at the same time deadbeat and DSP control is introduced, as well as two-loop control of the system,we gained power factor is near unit and current THD is well below 10% in our digitized arc welding power system.

基于空间矢量脉冲宽度调制技术的易于数字化、可降低谐波、电压利用率高、动态响应快等特点，引入无差拍思想、总体系统的双环控制思想和DSP控制，实现了功率因数为1，电流谐波畸变远小于10％弧焊电源系统的数字化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。