查询词典 power off

In order to study the negativesequence influence to regional power grid caused by autotransformer traction power supply system, formulas of NSeq current and threephase voltage imbalance were derived, based on current distribution analysis of AT traction power supply system and singlephase VVconfiguration train substation. Employing the "train diagram" method, the realtime voltageimbalance curve was obtained in a simulation study, as well as the factors that influence NSeq and some measures to restrain it.

为研究自耦变压器牵引供电系统对地区电网造成的负序影响，首先讨论了AT牵引供电系统、单相VV接线牵引变电站的电流分布，推导得出了负序电流、三相电压不平衡度的计算公式；然后结合"列车运行图法"开发了相应的仿真程序；最后通过一个实际算例，得到了实时电压不平衡度曲线，指出了负序大小的影响因素及相应措施。

Maximum output Power This refers to the measure of average power at the maximum power setting.

最大输出功率：指在最大功率设置时的平均功率。

Strong technical force, with the current domestic and foreign advanced production equipment and testing equipment, professional production is below 35 kV power cables and control cables, electrical equipment used wire and cable insulation overhead power lines, bare copper wire, bare aluminum, computer cables, Various types of wire cloth, with branch lines, cables and rubber products above the fire-retardant, fire-resistant products, fire-retardant fire-resistant communications with the soft power of the modern cable business.

技术力量雄厚，拥有目前国内外先进的生产设备和检测设备，是专业生产35kV及以下电力电缆、控制电缆、电气装备用电线电缆、绝缘架空电缆、裸铜线、裸铝线、电子计算机电缆、各类布电线、带分支电缆、橡套电缆及上述产品的阻燃、耐火型产品、通信电源用阻燃耐火软电缆的现代化企业。

ABSTRACT With the development of installed capacity and power system interconnect scale, the importance of stable monitor and control is becoming more and more obvious. The phase angle is one of basic state variable of electric power system, so monitoring and controlling power angle and phasor of the bus voltage are the most important means.

随着电网装机容量的增大及电网互连规模的扩大，电网的稳定监视和控制越来越重要，而相角是反映系统最基本的状态变量之一，因此监视和控制发电机的功角和母线电压相量，将是电力系统稳定监视和控制最重要的手段。

The cause of corruption can't be sim ply attrituted to the relation between power and market,just the power entering the market,the intervention of state power is necuasary because market dose not work properly,It is rentseeking,that is the basie cause of corruption.

腐败滋生蔓延的根源不能归咎于权力与市场之间存在联系，更不能简单地加罪于权力进入市场。因为政府权力与市场经济密切相关，市场失灵的缺陷离不开国家权力的干预。

Result shows that pumped storage power station has a bigger role in Qinghai power system, and it can be fully effective in the power balance.

结果表明，抽水蓄能电站在青海电网中的替代作用比较显著，在电力平衡中可充分发挥作用。

For the absolute independence of the civil power, affirmed in the first Article, Gallicans drew their argument from the proposition that the theory of indirect power, accepted by Bellarmine, is easily reducible to that of direct power, which he did not accept.

绝对独立的民间力量，肯定了第一条， Gallicans提请他们的论点的主张，即理论的间接的权力，接受贝拉明，很容易还原到直接权力，他没有接受。

Power-law fluid is used to describe the Non-newtonian rheological property of the produced fluid in a polymer-driving well; the governing equations, boundary and initial equations of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is established in bipolar coordinates system; formulas of instantaneous flow rate and stress distribution on the outwall of the inner cylinder of the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially are established.

在理论上，用幂律流体模型描述了聚合物驱油井产出液的非Newton流变性；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中非定常流的控制方程及边界条件和初始条件方程；建立了双极坐标系下幂律流体在内管做轴向往复运动的偏心环空中流动时瞬时流量和流体在内管壁上的压力分布计算公式。

GPS—1000 power source is one kind of independent solar power supply systems exploited by the company which can be used as electrical power sources in fields of family, telecommunication, border defense post and scenery lighting etc.

GPS—1000太阳能电源是本公司开发的独立太阳能供电系统。可作为户用、通讯、边防哨所、景观灯等领域应用。

Boao "fishing", fishing back to the human in this I - the "Sea of prose" in the clear to the "sea fishing were" the desire for power by the self, self balance and self-power three-dimensional body composed of sovereign self-will power, Bowring magnificent, soul-stirring.

伯翱"海钓"，钓回了人类本我——其"海钓散文"中所昭示的"钓海者"由自我权欲、自我权衡和自我权力构成的三维一体的自我主权意志力，波润壮阔，惊心动魄。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。