It was pointed out that it was the larger contact résistance in primary circuit of a 200 MW turbine generator, which produced a larger unbalance voltage at open triangle of the potential transformer secondary side, that caused the protection malfunction among turn-to-turn, and some suggestions of solving these problems available were presented for .
分析了匝间保护误动的原因,指出某台200MW汽轮发电机一次回路接触电阻大,导致电压互感器(TV)二次侧开口三角出现较大的不平衡电压造成匝间保护误动。
In order to introduce the principle of pre-coordinated arc-suppression coil and then solve some problems in its operation,this paper analyzes the occurrence of imbalance voltage and the magnifying effect of arc-suppression coil,as well as the equivalent circuits of the compensation grid of arc-suppression coil before and after fault.
首先从不平衡电压的产生及消弧线圈对不平衡电压有放大效应的基本概念入手,接着分析了消弧线圈补偿电网中故障发生前后系统的等效电路,建立起了两个电路之间的联系,进而分析了这个联系对预调式消弧线圈最终实现补偿所起到的关键作用。
Due to the distribution characteristics of wind resources,many wind turbines are installed in remote areas,where the power grid is usually weak and the unbalanced voltage condition often occurs.
文中基于对称分量理论,建立了不平衡电压下双馈发电机和网侧变流器的数学模型,分析了负序电压对传统双馈发电系统矢量控制策略的影响,并据此提出了一种基于比例谐振调节器的矢量控制策略。
Analysis of the voltage unbalance in the small current grounding system;
小电流接地系统电压不平衡现象简析
When a submarine cable of 35kV is energized, the voltage unbalance between lines and grounding alarm are arisen.
对35kV蓬长线(海底电缆)送电后系统出现的电压不平衡并发接地报警信号现象进行了原因分析,并提出了解决的对策。
Furthermore, a novel control strategy was proposed to mitigate voltage unbalance and at the same time extend the functions of SVG.
电网电压不平衡对并网的电力电子装置有着十分重要的影响。
Research on Control Strategy for Doubly-fed Generation System under Unbalanced Voltage Condition
不平衡电压下双馈发电系统控制策略
Analysis of Unbalanced Voltage Protection and Protection Setting Value of the Shunt Capacitor
并联电容器不平衡电压保护及保护定值的分析
Improved Dead-beat Control for Network Unbalance Voltage Compensation
电网不平衡电压补偿的改进无差拍控制
balanced-to-unbalanced transformer
平衡－不平衡耦合变压器
The Detection of Reactive Current under Unbalance and Non-Sinusoidal Voltage
不平衡非正弦电压下的无功电流检测
balanced-to-unbalanced trnasformer
平衡-不平衡耦合变压器平衡-不平衡转换器
Analysis of three phase voltage imbalance on the 6.3 kV side of high voltage auxiliary transformer of substation
高厂变6.3kV侧三相电压不平衡分析
Study on Non-uniform Current in Low Voltage Side of Annealing Furnace
退火炉低压侧电流不平衡问题的探讨
A balun is a transmission line transformer for converting balanced input to unbalanced output or vice versa.
平衡-不平衡变压器是一根送电线变压器为转换的平衡的输入对失衡的产品或反之亦然。
Quality of electric energy supply--Admissible three-phase voltage unbalance factor
GB/T15543-1995电能质量三相电压允许不平衡度
Research on All-capacitor Adjusted Compensation for Low Voltage Three-phase Unbalance Distribution Network
低压配电网三相不平衡全电容调节补偿的研究
Case of Unbalance Rate Going Beyond Standard of Direct Current Resistance of Power Transformer
电力变压器直流电阻不平衡率超标案例
Phenomenon Analysis on Voltage Unbalance of Neutral Ungrounding System
中性点不接地系统电压不平衡的几种现象分析
Induced Voltage and Current Unbalanced Factor when Medium-and-High Voltage Single-Core Cables Paralleled
中高压单芯电缆并联时感应电压和电流不平衡系数
Research on the Unbanlanced Control Scheme of 3-PhaseVoltage Source PWM Rectifier;
三相电压型PWM整流器不平衡控制方法研究
Study of Three-Phase PWM Voltage-Source-Rectifier under Unbalanced Input Voltage Conditions;
电压型PWM整流器（VSR）不平衡控制策略研究
Design and Realization of Phase Locked Loop under Three-phase Unbalance Voltages
三相电压不平衡条件下锁相环的设计与实现
Study of control strategy based three-phase PWM rectifier under unbalanced input voltage condition
三相电压源型PWM整流器不平衡控制策略研究