主保护

三峡发电机内部故障主保护及TA配置方案的研究总结

Research summary on the main protection scheme of internal fault and disposition of current transformer for generators in Three Gorges Power Station

100～300MW水轮发电机主保护配置方案的优化

Optimization of main protection configuration scheme for hydro-generators from 100 to 300 MW

该装置采用了双CPU结构，其中主保护CPU采用了带以太网接口的32位RISC微处理器MCF5272，它负责完成接收采样值及保护计算的任务。

This set applies double CPU configuration , one is 32 bits RISC MCU with Ethernet interface .

最后采用Matlab软件进行仿真试验，试验结果证明了该保护方案的效率优于目前传统变压器的主保护方案。

At last , a simulation experiment using Matlab is conducted , and the result of the experiment proves that the current differential protection is more effective that the main relay protection of traditional transformer .

阳二3号机组锅炉主保护MFT的应用与改进

Application and Improvement of Boiler Main Protection of No. 3 Unit in Yangquan No. 2 Power Plant

选用四星型MOA作为限制真空断路器操作过电压的主保护器，效果十分明显。

The effect was obvious to select four-star connection MOA was a main protector to limit overvoltage in operation of a vacuum disconnector .

为减轻微机母线主保护CPU的工作负荷，开发一个以80386EX为核心的智能打印板完成数据处理及打印任务。

An intelligent printer card is designed to reduce the main CPUs working load of digital bus protection , which is based on80386EX and used to implement the tasks of printing data processing and print .

浙江省500kV线路主保护的光纤通道配置探讨

Discussion of optic fiber channel configuration for main protection of 500 kV power line in Zhejiang

330kV安南双回线主保护拒动问题分析

The Analysis for the Inactivity of 330 kV An-Nan Double-circuit Line

Tricon系统在国产超临界机组主保护系统中的应用

Application of the Tricon System in Main Protection of China-made Supercritical Mech Unit

介绍了2004年全国电网继电保护与安全自动装置运行情况，包括220kV及以上系统一次设备的发展、故障率的统计及元件保护、线路主保护的运行情况。

The nationwide operation situation of protective relayings and automation devices in the year of 2004 is summarized .

660MW机组机炉主保护控制逻辑优化方案探讨

Turbine-boiler Main Protection Control Logic Optimal Scheme in 660 MW Unit

目前在我国220kV及以上线路中广泛采用了高频保护作为线路的主保护，地位十分重要。

Adopted high-frequency protection as the main protection of circuit extensively in the our country 220 kVs and the above circuit currently , the position was very important .

文章在简要介绍浙江电力光纤骨干通信网概况和分相电流差动保护特点的基础上，重点探讨了500kV线路主保护的光纤配置问题。

The paper introduces backbone power communication network in Zhejiang , discusses main protection configuration for 500 kV power line based on the characteristics of current differential protection in each phase .

按加强主保护、简化后备保护的原则，对500kV联络变压器提出了新的保护配置方案。

According to the principles of strengthening the main protection and simplifying the backup protection , a new protection configuration scheme of interconnecting transformer in 500 kV system is put forward .

由于100～300MW水轮发电机的绕组设计非常灵活，使得实际可能发生的故障特点各不相同，应作内部短路计算决定100～300MW水轮发电机的主保护配置方案。

The different stator winding designs of hydro-generators from 100 to 300 MW lead to different fault features . It is better to design the main protection configuration scheme for medium hydro-generators based on internal fault simulation .

SDBP根据各差动区的动作状态可以精确定位故障元件，并根据主保护动作信息和断路器位置信息完成整个变电站的后备保护功能。

SDBP can accurately locate the fault component according whether the differential zones lie in restraining state or operating state , and implement backup trip according the act information of main protection and breaker .

龙滩发电机主保护设计新思想

New Idea of Generator Main Protection Design in Longtan Power Station

论大型发电机微机主保护设计的科学性

On the Scientific Design of Microcomputer-Based Main Protection for Large Generator

首次提出了一种基于等效电阻变化特征的变压器主保护新原理。

A new principle based on the equivalent resistance is proposed .

某水电站250MVA发电机主保护方案的研究

Research on Main Protection Schemes of Hydro Power Station Generator

基于图形界面的发电机内部故障主保护整定系统

Setting system of generator internal faults protection based on the graphic interface

大型水力发电机主保护配置方案综述

A Summary of High-capacity Hydro-turbine Generator Main Protection Allocation Scheme

巨型水轮发电机主保护配置的优化

Optimization of main protection 's arrangement for large water turbo - generator

大型水轮发电机主保护定量化设计过程的合理简化

Rational Simplification of Quantitative Design Process of Main Protection for Large-sized Hydro-generator

电流纵差保护是电力系统中使用最广泛的主保护之一。

Current differential protection is wide used in power system .

差动保护一直以来是变压器的主保护。

Differential protection has long been the key protection for power transformer .

不同型号的发电机应配置不同的主保护

Different disposition of main protection for different types of generator

大型水轮发电机微机型主保护设计方法再商榷

Reconsideration of the design method of microcomputer-based main protection for large hydro-generator

发电厂低压厂用变压器主保护配置分析

Analysis on main protection of low-voltage transformers in power plants