断相保护

电动机远距离运行断相保护在实际工作中很重要。

The open-phase protection in long-distance motor operation is very important in practice .

发电厂高压电动机断相保护的探讨

On open-phase protection for HV motors in power plants

用可编程序控制器（PLC）与接触器实现了三相鼠笼型异步电动机的定子串电抗降压起动、正反向控制、短接制动和过载、断相保护，给出了PLC的I/O接线图和梯形图。

With the programmable logical controller and contactor , the author achieves stepping-down voltage starting , obverse and reverse controlling , short circuit braking , overload and phase-break protection . Moreover , the I / O wiring graph and ladder-shape graph of PLC are drawed .

以负序电流为原则的电动机断相保护装置

A Motor Open-phase Protector Based on the Principle of Nagative-sequence Current

三相异步电动机断相保护设计原理质疑

Discussion on Loss of Phase Protection Design Theory for Three-phase Asynchronous Motor

织机节电控制和电动机断相保护电路

Electricity Saving Control On Looms And Motor Protection Circuit Against Phase Breaking

谈谈几种简易的电动机断相保护

Elementary discussion on several kinds of simple-easy break phase protection of motor

单稳态集成电子断相保护器的设计与调试

Design and Adjustment of Monostable Integrated Electronic Open-phase Protector

电机断相保护电路的两种设计方法

Tow designing methods of the cut - out protection of the electric ciruit

隔爆开关缺断相保护的研究

Research of Open Phase Protection in Explosion - proof

一种新的电动机断相保护装置方案

A New Open-phase Protection Device of Electric Motor

基于游梁式抽油机负载特性的算法实现与断相保护电路

Algorithm realization based on the load characteristics of beam-pumping unit and phase-failure protection circuit

电动机群控断相保护装置

Phase-failure Protective Devices for Groups of Transformer Fans

纺织电气断相保护的研究

Phase Protecting in Electronic System for Textile Production

高灵敏度电气设备断相保护

High Sensitive Phase Failure Protection of Electric Equipment

小型空气压缩机电机的断相保护

The Phase-broken Protection of Small-scale Air Compressor Motor

电子式自动延时启动及断相保护装置

Electronic Automatically Delayed Start and Open - Phase Protective Unit for Well Pumping Units

高压综合继电保护装置&断相保护电路设计与实现

Multiple relay protection with high voltage ─── the design of phase cutout protective circuit

小容量三相异步电动机断相保护方法

Phase Failure Protection for Small Threephase Asynchronous Motors

一种三相电机的断相保护装置。

The utility model discloses a phase interruption protective device for three-phase electric motor .

异步电动机的断相保护

Protection of asynchronous motors lack of phase

多功能电动机保护中不对称及断相保护模型的研究

Study on the Model of Unbalance and Single Phase Broken in Multifunctional Protection of Motors

一种新的三相异步电动机断相保护方法&零序变压器作采样元件

New Phase-Failure Protection for Three-Phase Induction Motor

三相交流电源自动调相及断相保护控制系统设计

The design of automatic control system for phase order adjustment and phase-failure protection of three phase alternating current

本实用新型涉及一种断相保护装置，尤其涉及一种用于电气设备的断相保护器。

The utility model relates to a phase-failure protection , especially relates to an open-phase protector used in the electrical equipment .

用断相保护继电器获取断相信号，据输出电压变化构成断相保护电路，实现保护。

Short-phase relay obtains short-phase signal , short-phase protection circuit was formed according to change of output voltage to realize short-phase protection .

分析了煤矿井下小型隔爆电动机过载、断相保护存在的缺陷，提出了改进的保护方案。

The existing defect of overload , open phase protection of minitype flameproof motor used in coal mine was analysed and its improved protection scheme was presented .

此断相保护装置可广泛应用于无缺相保护的电气设备中，使设备控制部件免于遭受断路故障的不必要的损坏。

The phase-failure protection can be widely used in the electrical equipment without open-phase protection to make the control part free of the unnecessary damage of the open circuit failure .

介绍了一种船舶岸电断相保护和相序自动调整装置的原理和线路，对船舶接用岸电时的保护有实用意义。

The principles And the circuit of a phase protection and phase order automatic adjustment device are introduced , they are of practical significance On protection when a ship is connected with shore power .

电动机保护装置采用热继电器已有很长的历史，但热继电器在电机的轻过载区存在着保护死区，而且对断相保护在许多情况下起不到保护作用。

The protector of electromotor have used heat relay for a long time , but heat relay not only has a dead area in the light over-loading area , but also can 't protect open phase under so much circumstances .