过电流保护

而且参考了大量的微机保护资料，给出了准确的定值，对变压器进行了电流速断及过电流保护，此外还有瓦斯及油温等开关量的保护。

An accurate trip-setting is given after the reference to a large number of data on microcomputer protection . There are current quick-breaking protection and over current protection for the transformer fault , in addition to the gas and oil temperature etc. switching protection .

重点介绍了可控硅和熔断器的故障监视及系统过电流保护实现反时限特性的方法。

The monitor of thyristor and fuse and the protection of over current and the method of antiloga of time limit especially is described .

基于WEB的过电流保护整定软件设计

Software Design of Overcurrent Protective Coordination Based on WEB

基于多Agent技术的自适应过电流保护的研究

Research on adaptive overcurrent protection based on multi-agent

CMOS固体电路式保护&两段式方向过电流保护及自动重合闸装置

CMOS Solid-State Circuit Protection & Two-Step Directional Over Current Protection Device with Thee-Phase One Shot Reclosing

IEC60947-2低压断路器标准附录F（一）带电子过电流保护的断路器的附加试验

IEC 60947-2 Low Voltage Circuit Breaker Standard Appendix F Additional Test on the Circuit Breaker With an Electronic Overcurrent Protection

EAF（LF）变压器过电流保护浅析

Brief Analyses of the Overcurrent Protection for the EAF ( LF ) Transformers

主要介绍IEC60947-22003年第三版中的附录F，带电子过电流保护断路器的附加试验。

It mainly makes an introduction to Appendix F to IEC 60947-2 3rd Edition 2003 . additional tests for circuit breakers with electronic over-current protection .

IGBT的过电流保护一般在自身的驱动电路中实现，而主电路相对简单、体积小。

The overcurrent protection for IGBT is generally implemented in its drive circuit so that the main circuit is simpler and the volume is smaller .

介绍了高分子基PTC过电流保护元件的动作原理、安装方式、性能特点，影响因素及其应用。

The trip principle , mounting methods , element characteristics and influencing factors , and applications of PTC overcurrent protectors based on polymer were introduced in this paper .

GH-039带有过电流保护功能的高速大容量IGBT厚膜驱动器集成电路

High-speed and large capacity IGBT of thick film driver integrated circuit GH-039 with over-current protection function

本文在分析配电变压器的过电流保护原理的基础上，采用DSP数字信号处理器，设计并开发了一套配电变压器微机保护装置。

This paper researches the principle of three sections over current protection of distribution transformer , and develops a digital protection device of power transformer with DSP . Firstly , this paper introducing the protection requirements and principles of the distribution transformer .

硬件电路主要设计了功率变换器主电路及其驱动电路，位置检测电路，A/D转换电路，PWM输出电路，CPLD逻辑综合电路，过电流保护电路。

Hardware circuit design mainly includes the main power converter main circuit and driver circuit , the location detection circuit , A / D conversion circuit , PWM output circuit , CPLD logic integrated circuits , over-current protection circuit .

阐述了SPD脱离器的重要性，从不同功能脱离器的设计要求入手，重点对SPD脱离器的热保护功能和过电流保护功能进行了研究。

The importance of SPD disconnector was expounded , from the design requirements of disconnectors with various function , with emphasis on researching of its thermal protective function and overcurrent protective function .

IGCT或者GTO的过电流保护一般在主电路中实现，使主电路复杂、成本高、体积大。

For IGCT or GTO , the overcurrent protection is generally implemented in the main circuit , which brings complex main circuit , high cost and great volume .

系统地研究了基于3842IC的DC-DC反激式电源中的两种自持现象的机理及其对应的数学模型，为其在基于类似3842IC的DC-DC适配器中的过电流保护设计中的应用提供理论依据。

In order to provide the basis of over current protection design in DC-DC adapter , the mechanism of self-holding in fly back switching power with single output Port which is based on the IC named 3842 is given here .

本文采用UC3846作为PWM发生器，桥式驱动的脉冲变压器既保证信号的传输，又保证足够功率驱动全桥逆变主电路。对于经常发生短路刷镀刷镀工艺，快速过电流保护非常必要。

UC3846 is used for PWM , pulse transformer driven by bridge can transfer signal and power for IGBT in main circuit , quick protection is necessary for short circuit often happen during brush plate .

在对比TN系统出线接地故障采用低压断路器和熔断器过电流保护的优缺点之后，认为应重视廉价的低压熔断器的选用，并提出其应用条件和适用的装设场所。

Compared the advantages between LV circuit breakers and fuses overcurrent protection in TN system outlet earth fault , it was proposed to pay more attention to the use of inexpensive LV fuses . And the application conditions and adaptable place were presented .

论述了VHS-ADC高速仿真平台与主电路的通用接口板电路以及过电流保护电路。

The general interface circuit and over-current protection circuit of VHS-ADC high-speed simulation platform and main circuit board are introduced .

程控交换机过电流保护元件的研制

A Study on Over Current Protective Component for Program Controlled Switchboard

动态模拟热继电器利用微机实现过电流保护

Dynamically Imitating Thermal Relay to Achieve Over - current Microcomputer Protection

变压器零序过电流保护整定中零序电流反向问题的研究

Study of zero sequence current reverse in transformer relay coordination

积分器电路，积分电路过电流保护电器的短路定额应用分析

Application and Analysis on Short-Circuit Ratings of Over-Current Protection Devices

基于集成原理的牵引变压器低压侧过电流保护

Integration Principle Based Traction Transformer Low Voltage Side Over-voltage Protection

浅谈提高过电流保护装置的灵敏度

Brief Talk on Sensitivity of the Over - current Protection

发展和推广反时限过电流保护&配电系统微机保护

Development and Application of Inverse Time Overcurrent Protection & Microcomputer-based distribution Protection Systems

浅析断路器的过电流保护特性

An Analysis on Over-current Protective Features of Circuit Breaker

等价过电流保护试验通过链节带感性负载进行。

The equivalent overcurrent protection test is carried out through a inductive load .

电动机自动变速和过电流保护系统

Auto varying speed and over-current protection system for motor

GB10963-1999家用及类似场所用过电流保护断路器

Circuit-breakers for overcurrent protection for household and similar installation