查询词典 voltage

The contract also includes protection and control systems as well as medium-voltage and low-voltage switchgear.

合同还包括了保护和控制系统，以及中压和低压开关柜。

For these reasons, the breaker-and-a-half switchyard scheme is generally preferred for transmission switchyards and a line tap (particularly for high-voltage and extra-high-voltage lines) would not be considered acceptable.

基于这些原因，断路器和一个半开关计划是普遍的首选传输switchyards和线塔（特别是高电压和特高电压线）将不会被视为是可以接受的。

To solve the problem with high deviation on bus voltage at Wu-Zhou 500 kV Switchyard in South China Allied power Grid, it was planned to install a set of 150 Mvar shunt reactor (chigh voltage reactor in brief bereaffenr).

为解决南方互联电网梧州500 kV开关站母线电压偏高问题，拟在梧州站母线投入1组150 Mvar并联电抗器。

The generator terminal voltage rising caused by the local over-voltage,over-current and single-ge-nerator compelling excitation during system syntony is theoretically analyzed.

从理论上分析了谐振导致局部过电压、过电流及发电机单机强励后造成机端电压升高的问题。

The algorithm of the static voltage stability region s tangent plane through the characteristic vector method or the implicit function derivative method is presented in the total parameter space,which can provide quantitatively the influence degree of all kinds of parameters on the voltage stability region.

提出了基于全参数空间的静态电压稳定域的2种切平面计算方法：特征向量法和隐函数求导法。

First through comparison of voltage stability tangent vector index, the power loss sensitivity index as well as the singular value index, then makes the system operators fixes their voltage stability monitoring and prevention stress on the weak nodes and weak area.

首先通过对电压稳定的切向量指标、网损灵敏度指标以及奇异值指标的分析比较，确定系统的弱节点、弱区域，使得系统运行人员对系统的电压稳定的监控和预防侧重在系统电压稳定的弱区域。

Secondly, weak buses were provided by tangent vector and voltage magnitudes at weak buses were maximized to increase static voltage stability margin indirectly.

实际上在系统运行过程中，不但要保证系统不出现运行约束越限而且要保证系统具有一定的静态电压稳定裕度。

Local control of voltage by means of autotransformers will lead to increase of current and this in tern will increase voltage drops in lines.

当地的用于电压控制的自感变压器也将从而产生更高的电流，这样使得输电线上的电压降增加。

AC and DC voltage measurement to the instrument automatically selects the range and test the voltage probes match.

AC和DC电压测量使仪器自动选择量程来和测试探针的电压相匹配。

Electron beam bombarding furnace ; High-voltage PWM converter ; Tetrode ; Harmonic current ; High-voltage filter circuit

电子束轰击炉；高压PWM ；四极管；谐波电流；高压滤波电路

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。