phase voltage

Single meter threshold logic detection checks if the phase voltage, phase current or power factor acquired from one electric meter violates the limits, or if the energy consumption increment follows its own regulation.

单表阀值逻辑检测是检测单个电度表上的相电压、相电流、功率因数是否越限或判断电量增值是否符合自身的规律确定是否有窃电发生；

Through analyzing traction bus current, traction bus voltage before and after compensation, the relationship between three-phase current unbalance degree, traction current total harmonic distortion rate and compensation degree is presented.

并通过分析平衡牵引变压器补偿前后的牵引母线电流、牵引母线电压，得出三相电流不平衡度、牵引电流总谐波畸变率与补偿度之间的关系。

The working principle of the single-phase voltage-source 4-quadrant converter is introduced.

摘要介绍了单相电压型三电平四象限变流器工作原理.

The working principle of the single-phase voltage source 4-quadrant converter is introduced.

介绍了单相电压型三电平四象限变流器工作原理.

Voltages to ground are limited to the phase voltage.

可限制对地电压到相电压.

Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total.

监测仪能够完成包括三相电压、三相电流的有效值、功率因数、三相不平衡、电压短期闪变、以及20次内的谐波、谐波相位、谐波失真总量等的测量。

Adopt OrCAD/ PSpice emulate software, the paper has carried on detailed analysis and studied to three phase voltage and current waves for AC contactor in closing and breaking course.

采用OrCAD/PSpice仿真软件对交流接触器在闭合与分断主电路时的三相电压、电流波形进行详细分析研究，提出了智能无弧交流接触器全新的控制方法。

A new algorithm of space vector PWM for three-phase voltage fed inverter is described.

提出一种新的用于三相电压型逆变器的空间矢量PWM算法 .

The neutral-point voltage fluctuation of three-level converter is only related to applied modulation method and three-phase current.

三电平变流器的中点电压波动只与变流器采用的调制技术和三相电流有关。

This paper analyzes the neutral point shift of the three-phase voltage regulator used in the experiments.

本文探讨了三相调压器在实验中出现的中性点位移的问题.

In order to measure the VFT phase voltage-phase enclosed GIS, 3 capacitance sensors are needed.

为了测量GIS中三相快速瞬态电压, 需要三个电容传感器,而每个传感器同时受三相电压的电场耦合.

Is the stator three phase voltage the same?

定子三相电压是否相等?

To reduce the switching losses of IGBTs in PWM rectifier, a third order square wave is added to the phase voltage control signal on the basis of the Improved Period Average Model. This new control algorithm leads to no switching in about 1/ 3 cycle.

为降低PWM整流器的开关频率，本文在整流器的改进周期平均模型基础上，在相电压控制信号中叠加三次方波信号，使得整流器中的开关管有1／3时间不动作。

This tester is used to determine the isolation character of the shoe material. Through auto transformation from die bearable phase voltage to a half of the line voltage, the excellent illumination energy conservation mode can be achieved.

本机在测试鞋底或绝缘鞋材所能承受的电压值，以了解其耐电压程度。通过对照明灯具从承受相电压至承受线电压一半的自动转换，实现最优照明节电模式。

The technique of single phase voltage regulator with chop-control is a new and high-performance technology. And this technique is more and more popular in the application of equipments with sine-wave voltage regulator.

交流斩波调压控制技术是一种新型高性能的交流调压技术，在正弦波调光设备中的应用越来越广泛。

A Novel Time Optimal Control for Single Phase Voltage Sag Compensators

单相电压跌落补偿系统的新型时间优化控制

The paper discusses the principle of the three-phase Voltage Source PWM Rectifier ( VSR ) .

通过讨论三相电压型PWM 整流器 的基本原理.

However, the magnitude of the breaking phase voltage at transformer exit may have a relatively high raise, and may cause damage to electric appliance.

然而，在变压器出口处断线相电压会有较大幅度的升高，可能损坏家用电器。

In this model, There are not only normal physical quantity such as three-phase current and speed, but also interior quantity such as voltage and current at different system.

该模型不但具有三相电流、转速等常规物理量，还有电机在不同坐标系下的电压、电流等内部物理量，非常适合高性能电机及控制系统的仿真研究。

Calculation for Twist Vibration Responses of Turbine-Generator Set on Excitation of The Transient Three-Phase Current& Voltage Process

汽轮发电机组对瞬态三相电流电压历程激励的扭振响应计算

Inner Model Control of Inverse System for Three Phase Voltage Mode PWM Rectifier

三相电压型PWM整流器的逆系统内模控制

Through measuring three-phase current of low voltage at user side and handling by specific algorithm, TA ratio of HV measuring can be accurately judged whether is consistent with data plate.

通过测量用户低压侧三相电流相量，通过特定的算法处理，准确判定用户高计TA的实际变比是否与铭牌一致。