Analysis of utilization fault by neutral line broken;
中性线断线引起的用电故障探析
The role of neutral line in the three-phase and four-wire power supply system;
中性线在三相四线制供电系统中的作用
This paper describes a"strange" trouble arising from the poor contact of the neutral line to the earth in a Mevatron 74 linear accelerator, hope the service engineer pay attention to the periodic check of the power supply system.
介绍由于供电系统中性线接地不良导致西门子Mevatron74型加速器损坏的"离奇"故障,分析了维修诊断的全过程,提请注意对供电系统的工作状态进行定期检查。
Analysis of the accidents caused by the disconnection of the neutral wire in low voltage circuit for civil use;
民用低压电路中性线断开事故的分析
This paper makes analysis of the current change in CT when the neutral wire break in the CT imperfect star connection and figures out the influence on the measurement and the relay protection in the electrical system.
通过对电流互感器不完全星形接线中性线断线后电流互感器二次侧回路电流变化的分析,阐述了对高压系统二次回路的计量仪表和电流保护的影响。
In the Three phase and Four wire circuit system,the neutral wire is very important.
在三相四线制供电系统中 ,中性线是非常重要的 。
In accordance with the neutral conductor earthed system,the paper expounds the faults and the resulting possible serious conseguences as a result of th ignorance of neutral conductor grounding of the earthed system.
针对中性线接地系统,论述了由于对中性线接地重视不够而存在的缺陷和可能导致的严重后果,并提出了一些针对性建议和方法。
When the three-phase loads are not the same seriously the neutral point’s electric potential will exceed 50V and at the same time the three-phase load voltages will be over or under 20% of the rated value if the neutral conductor is broken.
当三相负载不平衡度达到一定值时,中性线一旦断开,则中性点电位偏移电压(UN'N)将大于50V;与之相对应的三相负载相电压过、欠电压值将达额定值的20%以上,危及用电设备和人身安全。
This paper mainly explores the veason of the overload of neutral conductor current and offers ways of reducing the current of neutral conductor.
本文主要讨论中性线电流过大的原因、给出减小中性线电流的措施。
Results indicate that the natural convection boundary layer becomes unstable due to buoyancy at a critical modified Grashof number G around 40;the neutral curve obtained by the growth rates of.
系统地测量了它所对应的温度和速度涨落的振幅增长规律和中性曲线 ,实验结果表明 ,温度涨落的中性曲线在低格拉斯霍夫 (Grashof)数Gr 时有环状封闭曲线 ,随后是和数值计算结果相似的鼻部。
With a 0,c r0 , the relation curve of Reynolds number Re , wave number a and the relation curve of Reynolds number Re , wave velocity c are made by using a cubic spline function, which avoided to manually estimate a,c r of every point on the neutral curve and is followe.
提出一种快速准确求解 Orr- Som merfeld(O- S)方程的中性曲线和临界雷诺数 Recr的方法。
The Function of the Neutral Wire and its Protection When Broken;
三相四线制中性线的作用及断线保护
Admissibility of Linear Predictor in Multivariate Linear Model;
多元线性模型中线性预测的可容许性
celestial 21 cm-hydrogen line
中性氢21厘米谱线
linear-input form strategy in resolution
解析中线性输入型策略
nonlinear lumped parameter system
非线性集中参数系统
mid-frequency luminance nonlinearity
中间频率亮度非线性
production function in linear programming
线性规划中的生产函数
simplex method of linear programming
线性规划中的单纯形法
The Realization of the Linear List in Visual Basic;
线性表在Visual Basic中的实现
Admissibility of Linear Predictor in Multivariate Linear Model with Linear Equality Constraint;
带线性等式约束的多元线性模型中线性预测的可容许性
ADMISSIBILITY OF LINEAR PREDICTION IN LINEAR MODEL WITH LINEAR EQUALITY CONSTRAINT UNDER QUADRATIC LOSS FUNCTION;
二次损失下带线性等式约束的线性模型中的线性预测的可容许性
Admissibility of Linear Estimators in Linear Models with Respect to Inequality Constraints;
不等式约束下线性模型中线性估计的可容许性
Admissibility of Linear Predictions in Linear Models with Constraints;
带约束条件的线性模型中线性预测的可容许性
Research on Linear and Nonlinear Mesoscale Symmetric Instability Theory;
线性和非线性中尺度对称不稳定性研究
Research on Performance Improvement of TCP Protocol in Wireless and Wired Networks;
无线和有线网络中的TCP性能改进方案
Titled Antenna in the Wireless System of Mobile Communication;
无线通信系统中倾斜天线的性能分析
Admissibility for Linear Estimators of Parameter on Growth Curve Model With Respect to Equality Constraint;
线性约束下增长曲线模型中参数的线性估计的可容许性
Linear Admissibility of Vector Function in Growth Curve Model
增长曲线模型中向量函数的线性可容许性
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号