When the cables use in direct current system, rated voltage should be not greater than 1.
当电缆使用地直流系统时，该系统的额定电压应不大于电缆额定电压的1.5倍。
The direct current system is an important component of the transformer substation, but its grounding is a common defect.
直流系统是变电站一个重要的组成部分，直流系统接地是常见的缺陷。
When the cables use in direct current system, rated voltage should be not greater than 1.5 times of the rated voltage of the cables.
当电缆使用地直流系统时，该系统的额定电压应不大于电缆额定电压的1.5倍。
The paper presents the status of and the operation method take by the accumulator as well as the direct current system one by one to ensure the reliable and steady-going operation of the whole system.
结合该工程，介绍了海底世界工程特点、对室内空气温湿度的要求、暖通空调和防排烟系统设计以及直流式空调系统中热管换热器的应用。
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
The simulation results show this control system has good dynamic property and negligible vibration, and efficiently makes the output current of direct motor trace the intent current.
仿真结果表明，所设计的滑模变控制器使助力电机具有很好的动态性能，系统基本无抖动现象，实现了助力电机输出电流对目标电流的跟踪特性。
The paper discusses and probes into the application of adaptive control in mine hoist direct-current velocity modulation system.
本文对自适应控制在矿井提升机直流调速系统中的应用进行了研究和探讨。
The system may measure many circuits high - frequency alternating current , direct current , frequency, efficiency of inverter .
系统测试项目有多路高频交流电流，直流电流，频率，逆变器的效率等。
It is digital servo timing control system which is driven by PWM, direct current moment motor.
采用了脉冲调宽功放装置(PWM)，直流力矩马达直接驱动转台框架的数字伺服调速体制。
One of the high performance direct current PWM control system based on TMS320LF2407A is introduced.
介绍了一种基于TMS320 LF 2407a的高性能直流pwm控制系统。
The current evaluating indexes of network direct report system are more scientific and practical than ever before.
目前系统中使用的质量综合评价指标比以前更为科学、可行。
Based on the low-voltage distribution system or load compensation for industry, the aim of the thesis is to study the SVG that adopts direct-current control.
本文的研究目的是立足于低压配电系统或工业负荷补偿，且控制方法采用直接电流控制的静止无功发生器的研究。
This article briefs the overall operation and maintenance situation of direct current (dc) system in Northeast power Grid Corp. in 2000 -2004.
介绍了2000 - 2004年东北电网公司直流系统的整体运行情况及管理情况。
Within our countrys power system, synchronous generator excitation system primarily consists in direct current exciter system and semiconductor exciter system.
在我国电力系统中，同步发电机的励磁系统主要有直流励磁机励磁系统和半导体励磁系统两种。
The design of filtering equipments at dc side of the converter substations is relative to the security and economy of the high voltage direct current (HVDC) transmission system.
换流站直流滤波装置的设计关系到高压直流输电系统的安全与经济性。
The high voltage direct current (HVDC) system connected with weak AC system is considered to be one of the causes for voltage instability.
与弱交流系统相连的高压直流系统被认为是引起电压不稳定的一个因素，评价交直流系统电压稳定性的方法相当复杂。
Base on the analysis and research of the original control system of double housing planer (B2012A), according to its special technics, designed a digital direct current speed control system.
在分析和研究龙门刨床(B2012A)原控制系统的基础上，根据厂方现场生产工艺的特殊要求，设计了龙门刨床全数字直流调速系统。
The system can measure the direct current frequency acceleration.
该系统可以测量频率低至直流的加速度。
The practical water supply system was developed, which consists of 26 direct current switch inputs, 16 direct current switch outputs, and 2 expand analog inputs.
系统共有26个直流输入开关量，16个直流输出开关量和2个扩展模拟量输入口。
Amy Chang-chien, coordinator of this solar project, pointed out that traditional solar system has a centralized inverter to change direct current to alternating current.
万佛圣城太阳能计划协调人张简嘉乃指出，传统的太阳能系统采用中央逆变器，将直流电转换成交流电。
This paper brings up a method called demagnetization dynamic measurement system for measuring the direct current resistance (DCR) of the transformer due to the characteristics of the windings.
针对变压器绕组直流电阻测试特点，提出了“消磁动态测试法”，将静态测量法与动态测量法有机统一起来。
Aiming at the control accuracy of rotational speed resulting from direct current speed regulation system, a direct current speed regulating system depending on CNC is proposed.
针对直流调速系统对转速的控制精度问题，提出了一种采用CNC的直流调速系统。
This paper discusses the integrated PWM controller for the direct current governor system, and studies the system construction and the working mechanism.
本文论述了应用集成PWM控制器的直流调速系统，并对该系统结构和工作原理进行了分析和研究。
It includes programming logical controller, digital direct current adjustable rate system, steel wick sticks crackle detect system, steel pipe track system.
整个系统由可编程控制器、全数字式直流调速系统、芯棒断裂检测系统、管料跟踪系统等构成。
High voltage direct current (HVDC) aircraft electrical power generating system (EPGS) is a new type of aircraft power generating system.
飞机高压直流电源系统是一种新型的飞机电源系统。
Through this method, successfully develop serial communication application for large direct current motor's speed control system between PC and 89c51 single chip.
运用这种方法成功地为大型直流电机调速系统开发了PC机与89c51单片机间串行数据通信应用程序。
A novel fault tracking approximator for fault diagnosis scheme of high voltage direct current transmission (HVDC) system is proposed.
提出了一种新的故障跟踪估计器来诊断高压直流输电(HVDC)系统中的故障。
A novel fault tracking approximator for fault diagnosis scheme of high voltage direct current transmission (HVDC) system is proposed.
提出了一种新的故障跟踪估计器来诊断高压直流输电(HVDC)系统中的故障。
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