断相保护
- 网络open-phase protection;Phase failure protection
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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 .
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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
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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 .
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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
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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
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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
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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
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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
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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
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隔爆开关缺断相保护的研究
Research of Open Phase Protection in Explosion - proof
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一种新的电动机断相保护装置方案
A New Open-phase Protection Device of Electric Motor
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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
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电动机群控断相保护装置
Phase-failure Protective Devices for Groups of Transformer Fans
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纺织电气断相保护的研究
Phase Protecting in Electronic System for Textile Production
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高灵敏度电气设备断相保护
High Sensitive Phase Failure Protection of Electric Equipment
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小型空气压缩机电机的断相保护
The Phase-broken Protection of Small-scale Air Compressor Motor
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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
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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
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小容量三相异步电动机断相保护方法
Phase Failure Protection for Small Threephase Asynchronous Motors
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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 .
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异步电动机的断相保护
Protection of asynchronous motors lack of phase
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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
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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
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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
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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 .
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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 .
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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 .
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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 .
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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 .
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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 .