Load tap switch is the central contrivance in load-ratio voltage regulation of transformer.
有载分接开关是变压器有载调压的主要装置。
Impedance is related to resistance-which, as generations of schoolchildren have had drummed into them, is the ratio of voltage to current.
阻抗是对电的抵抗力——小孩子也略有所知，是电压和电流强度的比值。
The voltage ratio of the capacitor and reactor will change when the fault occurs.
电抗器匝间故障时，电容器与电抗器电压比将发生变化；
The decoder determines the optimum conversion ratio to improve the efficiency of system from the relation between the input and output voltage.
首先采用译码器对输入和输出电压进行判比，确定最优的转换系数，提高了系统的效率。
Brushless direct current motors and have advantages of good adjustment performance, high voltage, high torque, high volumes ratio in high performance drive.
无刷直流电动机在高性能驱动应用中具有良好的调整性能、高电压、高转矩、高体积比以及无电刷的优点。
ATP simulation and MATLAB calculation show that the voltage ratio protection against inter-turn fault of reactor can make correct judgement to this kind of fault quickly.
基于ATP的仿真和Matlab的运算表明基于电容器电感器电压比的电抗器匝间短路保护，能够对匝间故障做出快速而正确的判断。
The results show that the extraction time and collision loss are decreased by increasing extraction voltage, but the sputtering loss increases and collection ratio decreases.
模拟结果表明，增加引出电压可以缩短引出时间，降低碰撞损失，但是增加了溅射损失，使得收集率降低；
According as compare of voltage deviation and its variable ratio, optimal control of voltage and current is realized with querying fuzzy control sheet and adjusting adverse variable pulse width.
比较电压偏差及其变化率，查询模糊控制表，调节逆变脉宽，可实现电压及电流的理想控制。
Compensating reactor in a Capacitive Voltage Transformer (CVT) influences not on-ly its ratio error, but also the rated output capacity.
电容式电压互感器(CVT)的补偿电抗器不但影响电压比的准确度，而且还影响它的额定容量。
The principle, main design point and no load voltage ratio calculation method of resin insulation dry-type grounding transformer are introduced.
介绍了树脂绝缘干式接地变压器的工作原理、设计要点及空载电压比的计算方法。
The influence factors such as the dimension of exciting coil, the frequency, the duty ratio and the voltage of exciting pulse were analysed, the principle of choosing testing parameters was proposed.
分析了激励线圈的尺寸、激励脉冲的频率、占空比和电压等因素对脉冲涡流检测系统的影响，给出了实际检测过程中选择参数的原则。
In this paper, the concept of synthesized voltage vector is introduced into duty ratio control technique.
文中将合成电压矢量的思想引入到占空比控制技术中。
Thermal stability and Power Supply Rejection Ratio (PSRR) of the voltage reference circuit are the two major factors that influence the precision and stability of the whole system.
它的温度稳定性和电源电压抑制比是影响整个系统精度和性能的关键性因素。
By comparative analysis, the dependence of the resonant frequency, voltage standing wave ratio, bandwidth and input resistance on different geometric parameters is obtained.
通过比较分析，得到了天线谐振频率、谐振点电压驻波比、带宽以及输入阻抗随不同几何参数的变化规律。
Rated primary current, rated voltage ratio, accuracy combination, rated output, rated dynamic and thermal current see form.
额定一次电流、额定电压比、准确级组合、额定输出及额定动、热稳定电流见表。
According to the property that the surge impedance relay is realized by the ratio of voltage and current travelling waves, the relay's algorithm based on wavelets is present.
针对波阻抗方向继电器利用初始电压和电流行波的比值构成的特点，提出了基于小波变换的继电器算法。
The ratio of voltage warp(RVW) for the varistor is defined to simulate a polynomial of every diameter and suspended heights of the grading ring.
定义了阀片电压偏差率并以此为目标函数，建立该目标函数与各均压环环直径和悬挂高度的拟合多项式关系。
Besides the cell voltage, bath temperature and bath ratio, the inputs of the system also include the liquidus temperature, superheat extent and cathode voltage.
系统的输入参数除传统的电压、温度和分子比外，还采用初晶温度、过热度和阴极压降等作为系统的输入参数。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
通过采用时变调制比的方法，可以消除不对称输入电压的影响，从而获得对称正弦输出电压或输入电流。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The electric characteristic parameters of this novel sleeve antenna are calculated, including the input impedance, voltage standing wave ratio (VSWR), horizontal gain and radiation pattern.
研究了这种新型套筒天线的输入阻抗、电压驻波比（VSWR）、增益及辐射方向图等电特性。
The ratio of voltage to cardiac mass was decreased.
心肌电压和心肌团块比值下降。
Experimental results indicate that tiny feeding, low voltage, low duty ratio and high frequency have important effects to increase the truing precision.
实验结果表明最后整形阶段的微小进给量及低电压、低占空比和高频率的电参数对提高整形精度具有重要作用。
This text introduce a verified method of direct current high voltage supply source making use of digit multimeter and voltage ratio standard in high voltage and high resistance measure instrument.
本文介绍一种利用高压高阻测量仪的电压比率标准与数字多用表测量直流高压电源的校准方法。
The TPDLC is polarization independent while exhibiting a higher contrast ratio and lower operating voltage as compared to the conventional PDLC film.
与普通的PDLC膜相比，TPDLC不依赖于偏振光，具有高的对比度和低的工作电压。
The calculation and test methods of voltage adjustment ratio for generator were introduced, and the influence of voltage adjustment ratio for generator on power system stability was analyzed.
介绍了发电机电压调差率的计算和试验方法，分析了发电机电压调差率对电力系统稳定的影响。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
并采用优化的SAPWM调制信号，提高了直流电压的利用率，并能有效地抑制逆变器输出的谐波电流。
It has been shown that a primary input voltage can be transformed to any desired open-circuit secondary voltage by a suitable choice of turns ratio.
通过选择合适的匝数比，一次侧输入电压可任意转换成所希望的二次侧开路电压。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
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