The paper describes the working principle of protection equipment for metro DC power supply system.
论文阐述了地铁直流供电系统保护装置的工作原理,详细论述了基于DSP的硬件结构和软件设计方法及其实现过程。
The protection and control system in subway DC power supply systems play a key role in ensuring the safety and reliability of the subway.
地铁直流供电的保护与控制系统对确保地铁的安全可靠运行起着关键作用。
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。
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
Research on the Urban Rail Transit Traction Power Supply Rectifier
城市轨道交通直流供电整流机组研究
The Research of Low-Voltage DC Supply Digital Electronic Ballasts for HID Lamps;
低压直流供电HID灯数字化电子镇流器研究
DC-Based Electronic Ballast for Ceramic Metal Halide Lamp
一种直流供电的陶瓷金卤灯电子镇流器
After the advent of transformers, much of the load was served by alternating current instead of direct current.
变压器出现后,许多负荷由交流供电而不用直流供电。
rectifier fed electric drive
整流器供电直流拖动
supply meter for direct or alternating current
直流或交流电供应电度表
Automatic exchange for DC and AC supply.
直流电源与交流供电能自动转换。
Transient Simulation of Short-Circuit Currents in DC Traction Power Supply System
直流牵引供电系统短路电流暂态仿真
Model J0407 DC Ammeter is suitable for students to measure the current in a DC ciruit in laboratory.
J0407型直流电流表供学校学生在实验中测量直流电路中的电流用。
The earth provides a low resistance conducting path for direct cur-rent.
大地提供了低电阻直流导电通道。
THE DEVELOPMENT OF LN-GDXT-IV AC-DC ISOLATED POWER SUPPLY
LN-GDXT-IV型交直流隔离供电电源的研制
Parameter Matching of Relay Protection in DC Traction Power System
直流牵引供电系统继电保护参数匹配
The Design and Application of Common DC Bus Power Supply
公共直流母线供电电源的设计与应用
Study of Distribution and Protection of Stray Current in DC Traction Power Supply System;
直流牵引供电系统杂散电流分布与防护研究
Model J0408 DC Voltmeter is suitable for students to measure the voltage in a DC ciruit in laboratory.
J0408型直流电压表供学校学生在实验中测量直流电路中的电压用。
The input power is also provided by a DC motor.
输入动力也是由直流电机提供的。
D.C.traction power supply system for subway
GB/T10411-1989地铁直流牵引供电系统
A New Circuit of small Capacity Dc drive with SCR Power Supply
小容量直流拖动可控硅供电的新线路
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