过载保护

颚式破碎机液压过载保护及其plc控制的设计

Design of hydraulic overload protection of jaw crushers which control system based on PLC

煤电钻采用热继电器进行过载保护方式已逐渐被IC型过载保护电路取代。

IC type overload protection circuit has gradually replaced thermal relay overload protection mode .

对热过载保护，给出了一种快速有效、实时性好的算法，使得热积累值可以在LED显示器上比较准确地实时显示出来。

The paper resolved the thermal accumulation value can be shown accurately in the LED .

基于CAM的STM和AFM的一种过载保护装置研究

Over Load Protection Device for STM and AFM Based on CAM

IEC标准电动机过载保护的修正动向

Revision Trend on Motor Over - load Protection in IEC Standard

PLC控制系统主要完成开关量和部分模拟量的输入输出，实现系统运行的时序控制状态巡检和过载保护；

The PLC control system mainly accomplishes the on-off input and output , it accomplishes timing control , checks the status and carries the over-voltage and over-current protection ;

下次电路再出现故障时，过载保护PTC热敏电阻又可以进入保护状态。

When the circuit breaks down next time , the PTC Thermistor can enter the state of protection again .

分析了准谐振模式变换器中的欠电流、过电压、过载保护等功能、动态自供电（DSS）、准谐振工作、跳跃周期工作原理。

Under current , over voltage , overload protection function , DSS , quasi-resonant mode , jitter period principal were all analyzed .

在简要介绍了智能化电子式过载保护继电器硬件结构的基础上，采用故障树分析法（FTA法）对其进行了可靠性的定性分析。

After the hardware diagram of the intelligent relay is briefly introduced , qualitative analysis of its reliability is carried out .

本文总结、分析了几种大功率晶体管（GTR）的过载保护方案。

The plans for overload protection of several giant transistors ( GTR ) are summarized and analyzed in this paper .

控制模块不但可调节PWM，而且具有过载保护、短路保护、过温保护功能，解决了雨刷电机堵转造成电机烧毁的问题。

The control module not only can regulate PWM , but also have the function of temperature monitoring , short circuit and overload protection . It solves the problem of damage of motor when motor is locked .

设计了具有过载保护与短路保护的步进电机驱动电路，采用PLC直接驱动步进电机驱动方式与四相八拍控制方式，实现对电子膨胀阀开度的精确控制。

The driving circuit of stepping-motor with the function of over-load protection and short-circuit protection is established ; the accurate control characteristic of open degree of EEV is realized by the way of driving stepping motor directly and four-phase-eight-pat controlling pattern .

本文阐述了过载保护器的匹配试验方法，并成功运用于CFCs替代工质新产品的开发之中。

This paper describes the experimental methods of matching overload protectors which are used successfully in the designs of new products using CFCs alternative refrigerants .

在电路故障排除后，过载保护PTC热敏电阻冷却并恢复到低阻态，同时电路也进入正常工作状态。

After the clearing of the circuit trouble , the PTC Thermistor begins to cool and come back to the state of low resistance , and then the circuit enters normal working condition .

当电路出现故障使回路电流增大时，过载保护PTC热敏电阻的电阻值因自热温升而出现阻值阶跃，直至把电路切断。

When the circuit breaks down and the return circuit current increases , the resistance of restricting overloading protection PTC Thermistor goes up sharply for being warm , until the circuit is cut off .

结合真空微电子技术、MEMS技术和传感器技术，依据冷阴极场致发射的原理，设计了一种带过载保护功能的新型真空微电子加速度传感器。

A novel acceleration sensor with overload protection was proposed , which was based on the vacuum electronic technology , the Micro Electro-Mechanical Systems ( MEMS ) technology , the sensor technology and the principle of Cold Electrode Field Emission .

本文描述了一种基于PIC16F877单片机的电子式过载保护继电器的硬件系统结构和软件系统设计。

The paper describes the hardware configuration and software design of an electronical overload protective relay with PIC16F877 singlechip .

采用先进的DSP（TMS320F2407A）芯片作为控制核心，实现了光伏水泵专用变频逆变器的设计，该变频逆变器具有多种智能保护措施，如打干保护、低速保护、过载保护等。

A special designed inverter is realized by adopting an advanced DSP ( TMS320F2407A ) as its control core , and the inverter has many protection measures such as water drained , low speed and over load protection .

与一般的电容压力传感器和其它类型压敏器件相比，接触式电容压力传感器（TMCPS）有着明显的优点，如较好的线性，高的灵敏度和大的过载保护能力等。

Touch mode capacitive pressure sensor ( TMCPS ) has distinct advantages over normal mode capacitive pressure sensor , and other counterparts .

本系统由两级微机组成，为集状感检测、统计、报表打印及电机过载保护于一体的微计算机系统.前置机选用MCS－48单片机，分6个检测控制点；

A computer system is developed , which is composed of two stages of computers and is a unity of state detection , statistics , form printing and overload protection of motor . MCS-48 board computers are chosen as the first stage , which has six detection points .

本文介绍一种将电池直流电压升压后再通过桥路转换成交流220V电压输出电路，经PIC16F73单片机进行控制，使它具有市电掉电检测、空载定时关机、过载保护等智能的功能。

This text introduce intelligent electrocircuit what direct current of batteries transform to 220v alternating current by rising volt , It has power cut check , timer turn off empty load , over loading protect .

JRT型热过载保护器临界电流检测仪采用多受检器件串联及电子变换检测线路，提高了保护器大规模生产的效率和检测的准确度。

A number of detected electric elements are series and an electronic detective circuits are adopted in the critical current detector for JRT thermal overload protector . Thus , it can improve the efficiency of mass production and the detective accuracy .

实验表明，在0.5～12mN范围内输出与力成线性关系，线性度为1%，且系统设计具有机械调零、过载保护功能。

The experiment shows the relationship between output and force is linearity in range 0.5 ~ 12mN , the linearity is 1 % . This system is a distributed fiber optic measuring system and it has the function of mechanical zero adjustment and overload protection .

本文介绍日本加藤NK-400E型汽车起重机的过载保护装置&MS-3型自动过载限制器的工作原理，它根据臂架的四种不同工况，将与探针接触的凸轮分四个象限。

This paper introduces , the operation principle of MS-3 type automatic overload limiting device , equipped on the Japanese Kato NK-400E type truck crane . It divides the cam into four quadrants according to four different working conditions of the boom , the cam being contacted with detecting fingers .

滑块内采用进口过载保护装置；

In the slide there is import hydraulic overload protecting device ;

反击式破碎机过载保护存在问题的研究

A Study of the Question in Overload Protection of Counterattack Crusher

智能型低压相敏保护和过载保护

Intelligent Low - voltage Phase - sensitive and Overload Protections

克服高压电动机过载保护死区的方法

Methods Overcoming Dead - zone of Over-load Protection for High Voltage Motors

可靠的镍锘合金传送系统配有自动过载保护装置。

The reliable nickel bo alloy transducer has the automatic over-load protection .

用单片微机实现多电机回路的过载保护

Overload protection of multi-electric motor circuit with single-chip micro-computer technology