direct current是什么意思

网络释义

用法例句

Application of double-commutating redundancy DC power supply system in pumping station;

双整流器组冗余型直流电源系统在泵站中的运用

Application of substation DC power supply remote monitoring system in Shizuishan Power Supply Bureau;

变电站直流电源远方监控系统在石嘴山供电局的应用

Design and implementation of GPIB programmed control DC power;

GPIB程控直流电源设计与实现

On-line monitoring of DC power based on CAN bus;

基于CAN总线的直流电源在线监测

Design and realization of integrated on-line DC power management system;

直流电源在线综合管理系统的设计与实现

VRLA batteries as dc power source in electric power system(2);

电力系统中的VRLA蓄电池组直流电源(二)

VRLA batteries as dc power source in electric power system;

电力系统中的VRLA蓄电池组直流电源(一)

The reliability of DC power source for power engineering has important role for guaranteeing the trouble removal and the normal operation of power system.

电力工程直流电源的可靠性对保证电力系统的正常运行和事故处理具有重要作用。

The Development of direct current converter of the mine electric locomotive;

矿用电机车直流电源变换器的发展

The supply of direct current and electrolyte equipment were designed.

设计了直流电源及电解液供给两套设备,为了保证电解珩磨质量对其主要工艺参数,如电极间隙、电解珩磨压力、珩磨头、磨条特性和电解液的确定进行了理论分析和现场实验研究,取得了很好的效果。

A design method for charge equipment of direct current power supply based on microprocessor for small power plants and power substation is introduced in this paper.

介绍用于小型发电厂或变电站的一种微机型直流电源充电装置的设计方法,并对主回路、控制回路及控制软件进行了研究:主回路使用半桥式功率变换电路,输出整流采用全桥式电路,降低了快恢复二极管反向耐压要求;控制回路为微机型高频脉宽调制电路,设计有IGBT驱动保护电路;控制软件根据电力工业局要求的充电控制流程对蓄电池组进行冲电过程的控制,采用PID控制算法。

The paper analyses high frequency switching power supply and valve-regulated seal battery,puts forward noticed items and routine maintenance requirements on direct current power supply system s equipment operation combined with work expe.

文章对高频开关电源、阀控式密封蓄电池进行了分析,并结合工作实际提出了直流电源系统设备使用中的注意事项及日常维护要求。

This paper introduces the basic scheme of the design of the simple numerical control direct current power supply system, and researches on and probes into the design method of the numerical control voltage source.

通过介绍简易数控直流电源系统设计的基本方案,对数控电压源的设计方法进行了研究与探讨。

Based on the IGBT regulation technology,a high-precision DC source is worked out.

给出了数控直流电源设计框图和主要电路,经测试表明所设计的电源具有功耗低、性能可靠、结构简单、使用直观方便的优点。

DC source is an important one driving electric power system protection apparatus and switches to take action because the flashing sets, which emit alarm signals and indicate the actual position of switches as the protection apparatus is being put into use, need it to run.

直流电源是电力系统保护及开关动作的重要电源,保护动作后,开关实际位置的指示通过闪光装置发出告警信号,闪光装置是在任何时候都不能中断电源的。

Operation From DC Power Supply: Batteries.

使用直流电源：干电池。

circuit design, wiring diagrams, schematics, AC/DC sources

电路设计, 接线图, 示意图, 交流/直流电源

Automatic exchange for DC and AC supply.

直流电源与交流供电能自动转换。

The Research on Rectifier DC Electrical Source for Electrolyzing Cuprum and Monitor Technique;

电解铜整流直流电源及监控技术研究

To run a direct motor, we must connect it to a direct current source.

要开动直流电机，我们必须把它接到直流电源上。

Selection of DC control protection component in DC power supply system

直流电源系统中直流控制保护电器的选择

Research on Electric Power Operation DC Power System in Transformer Substation;

变电站电力操作直流电源系统的研究

Resistance thermometer bridges may be excited from either a-c or d-c sources.

电阻温度计电桥的供电可以是交流电源，也可以是直流电源。

The Soft-Switching of High-Frequency DC Charger System;

高频直流电源充电系统的软开关实现

Design of High Voltage Direct Current Power Supply Based on IR2153;

基于IR2153的高压直流电源电路设计

On-line insulation monitoring of substation DC power supply

变电站直流电源绝缘在线监测新方法

AC current or voltage source. DC offset can be specified.

交流电流源或电压源。可指定直流偏移。

combined a.c. and d.c. welding power source

交直流两用弧焊电源

transistorized regulated DC power supply

晶体管直流稳压电源

Low voltage DC power is also provided for control power and emergency power.

低压直流电作控制电源和应急电源。

Study on Active Fiber DC Transducer Used in HVDC;

高压直流输电有源光纤直流电流传感器的研究

DC current or voltage source. Magnitude of AC component can be specified.

直流电流源或电压源。可指定交流分量的大小。

Study of constant-current source for measuring DCR of large electric power equipment

电力设备直流电阻测量用恒流源研究