直流供电系统

基于DSP的地铁直流供电系统保护装置的设计

Design of Protection Equipment for Metro DC Power Supply System Based on DSP

CARR直流供电系统的设计

Design of DC Auxiliary Power System of CARR

1500V直流供电系统状态在线监控仪

On-line Monitor for 1500V Direct Current Supply System

新型换流变压器在矿山直流供电系统中的应用

Novel Converter Transformer Application in Current DC Power System of Mine

井下电机车直流供电系统的技术改造

Technical modification of DC supply system for well electric locomotive

用混沌理论检测直流供电系统接地故障

Application of Chaos Theory in Grounding Fault Detection of DC Power Supply System

一种直流供电系统电力电容的在线测量方法

An On line Method of Power Capacitance Measurement for DC Power Supply System

介绍一种新型的直流供电系统在线监测装置。

This artical introduces a new insulated on-line detecting device for DC system .

提高直流供电系统的利用效率

Improving the Utilization Efficiency of DC Power Supply System

异步发电机直流供电系统自励建压的一种新方法

New Method of Voltage Self-buildup Applied in DC Supply System Based on Asynchronous Generator

宿营车直流供电系统综合保护的设计

The Design of Integrative Protection Circuits in DC Power Supply System for Camping Car

同一电路不同电压等级直流供电系统中的短路保护实现

Applied of short-circuit protection for the same circuit different voltage in the DC supply system

移动通信基站用直流供电系统的供电保证及维护

The Power Supply Guarantee and Maintenance of DC Power Supply System in Mobile Communication Base Station

通信电源系统由交流供电系统、直流供电系统和接地系统组成。

Communication Power Supply System by AC power supply systems , DC power supply system and ground system components .

论文首先介绍了当前常用的几种直流供电系统绝缘检测方法，较为详细地分析了它们的优缺点。

The author analyses several familiar detecting methods of DC power supply , concretely expounds their advantages and shortcomings .

解决了在电源电压变化大的低压直流供电系统中选择短路保护器件难题。

The method has also solved the problem of choosing the device of the short-circuit protection for low-voltage DC supply system which is highly waving .

在通信、电解、电镀、钢铁冶炼、城市轨道交通等领域，直流供电系统都发挥着举足轻重的作用。

In communications , electrolysis , electroplating , iron and steel smelting , urban rail transport , the DC power supply systems are playing an important role .

本实用新型涉及在直流供电系统网络设备中避雷器的安装，特别涉及一种角型避雷器。

The utility model relates to a lightning arrester installation in network equipment of direct current power supplying system , particularly relates to an angle type lightning arrester .

目前飞机上广泛使用的大都是恒速恒频的交流发电机系统，与之相比，高压直流供电系统的应用前景更为广阔。

Now which widely used in aircraft are mostly constant speed constant frequency AC generator system , compared to high voltage DC power supply system is more broad application prospects .

针对城市轨道交通直流供电系统特点建立了杂散电流的计算模型并进行了仿真。

Based on the characteristics of the DC traction power system in rail transit , a numerical model is set up to calculate the leakage current and the potential variation distribution .

文中主要介绍了移动通信基站用直流供电系统的基本组成、一般特点、及供电保证和维护工作的主要注意事项。

This paper mainly introduces the basic composition , general characteristics , power supply guarantee and main notice in maintenance of DC power supply in mobile communication base station of DC power supply .

现有直流供电系统的单相接地故障检测方法，如低频信号注入法，容易受到环网的影响，导致错误的检测结果。

The prevailing method of DC system grounding fault detection , such as low frequency injection method , is prone to be impacted by the loop net in power systems , and leads to wrong detection result .

阐述了老矿山井下电机车直流供电系统的诸多弊病。及采取大容量整流设备、放射式集中供电的技改措施和取得的良好效果。

Many disadvantages of DC supply system for well electric locomotive in old mine are stated , the technical modification measures of applying large capacity rectification equipment , radial and centralized supply system and achieved good result are also presented .

分布式直流供电系统不仅克服了传统集中式供电存在的难以实现余度供电和不间断供电等缺点，且系统模块化程度较高容易实现扩展，从而具有较高的可靠性。

Distributed DC power supply system has not only overcome the shortcomings of the traditional centralized power that it was difficult to achieve a redundant power supply and uninterruptible power supply , but also it was high reliable to achieve expansion in high degree modular system .

介绍直流牵引供电系统中直流馈线DDL保护的动作原理，以及保护参数的设定原则，并举例说明。

The behavior principle of DDL protection for DC feeder in DC traction current supply system and the setting principle of protection parameters are introduced and illustrative examples are given .

地铁直流供电保护系统保护算法的研究

Research of Protection Arithmetic in Subway DC Power Supply Protection System

地铁直流牵引供电系统检测与保护的研究

Study of the Detection and Protection of DC Traction Supply System

地铁直流供电保护系统结构与控制逻辑

Configuration and Control Logic in Subway DC Power Supply System

直流牵引供电系统钢轨电位与杂散电流分析

Rail Potential and Stray Current of DC Traction Power System

变流机组在交直流混和供电系统中的仿真研究

Study on Simulation of Converter Unit in AC & DC Supply System