查询词典 electrical system

When 10（20）kV electrical source side neutral point adopts low-resistance grounding system,the existing problems of the high-voltage equipment protective grounding and low-voltage neutral point system grounding divided network settings in the distribution substations are analyzed.

摘要对 10（20）kV电源侧中性点采用小电阻接地系统的配电变电所中，高压设备的保护接地和低压中性点系统接地分网设置存在的问题进行了分析。

San Luis has a good electrical quality management system, and adopted the ISO9001: 2000 international quality system certification.

圣路电器拥有完善的质量管理体系，并通过了ISO9001：2000国际质量体系认证。

The author interpreted the determinant rule of bad measuring data while power system is in stable state, and implemented the smoothing transition of the measuring results of electrical parameters through curve fitting based on least square while the load in power system is in fluctuation in this paper.

本论文阐述了电网稳态情况下的粗差判定准则，并采用基于最小二乘为准则的二次函数曲线拟和来实现电网负载波动情况下电参量测量值的平滑过渡。

For a single machine infinite bus power system with STATCOM connected at the electrical mid point of the equivalent transmission line, a unified and extended linear state space system model is firstly formulated by linearizing around the typical operating point.

针对单机无穷大母线联络线中间带静止同步补偿器的电力系统，建立了统一的状态空间模型；并在此基础上，应用信息结构约束下的LQ最优控制理论和算法，得到输出反馈的STATCOM与机组励磁的最优分散协调控制器；应用数字仿真研究它们在系统受到大小扰动下的控制性能和特点，并与传统的电压偏差PID励磁调节器进行了比较。

So far the main products our company is dealing with are: High voltage cable, online switch temperature detecting system, online circuit breaker monitoring system, automatic integrated transformer substation tester, mutual inductor analyzer, SF6 electrical equipment malfunction detector, and we act as an agent for Austria OMICRON company.

目前的公司经营的主要产品包括：高压电缆、开关温度在线检测系统、断路器在线监测系统、变电站综合自动化测试仪、互感器分析仪、SF6电气设备故障检测仪，同时代理奥地利OMICRON公司产品，公司主要市场中国南方电网。

Firstly, the three-dimension boundary question and its corresponding variation question concerning the point-source electrical field on a 3-D structure are presented. Secondly, the finite element method is used to solve the variational equation. The study area is divided into many tetrahedral elements. Then, we interpolate with a tri-linear function in each element. So, the variational equation is converted into a linear equation system. Finally, taking into account saving of time, we make use of symmetric successive overrelaxation preconditioned conjugate gradient algorithm to solve large linear system, and obtain the potential value of each node, resulting in the calculation of the apparent resistivity values on the ground surface.

首先给出了三维构造中点源电场的边值问题以及相应的变分问题；然后利用有限单元法求解变分问题，采用四面体单元对研究区域进行剖分，在单元中进行三线性函数插值，将变分方程化为线性代数方程组；最后，考虑到节约计算时间，利用对称超松弛预条件共轭梯度迭代算法求解大型线性方程组，得到了各节点的电位值，进而计算出地表的视电阻率。

Mainly by cleaning equipment, fluorescent penetrant testing pipeline, a sewage treatment equipment, electrical control system, Pneumatic systems and ventilation exhaust system components.

主要由清洗设备、荧光渗透检测流水线、污水处理设备、电气控制系统、气动系统和换气排风系统等部分组成。

In this thesis, first, the status quo of podded electrical propulsion is discussed. Then, based on the newest data and materials, the structure and the tide of popular podded propulsor is analyzed. After thorough researches on internal system of Azipod propulsor, the scheme of management and control on main system that needs to be checked regularly by engine officer is put forward, designed by MCGS and PLC.

本文首先介绍了吊舱式电力推进的发展现状，然后在充分收集国外最新资料的基础上，具体分析了国际上主流吊舱式推进器的结构特点及其发展趋势，并在对Azipod吊舱推进器内部主要系统进行深入研究探讨之后，针对船舶轮机员经常巡回检测的系统提出了基于组态软件和PLC的管理控制方案。

Moreover, the system also integrates linear regulator which is quite applicable in on-chip power supply system. Founded on studying the electrical characteristic of it in quasi powered-off state, the linear regulator realizes an efficient energy transfer from storage capacitor to secure circuits.

此外，该系统还集成了适用于片上电源系统的线性调整器，研究了准掉电模式下线性调整器的电特性，实现了将存储电容的能量高效的转换给安全电路。

Based on large amount of fault data and the analysis of the rocket launcher's structure and design, this paper presents the fault models of electrical drive system and fire system.

本文在统计大量故障数据及对火箭炮结构和设计分析的基础上，建立了火箭炮电传动系统和发火系统的故障模型。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。