断相
- Phase failure;loss of phase
![断相](../cache/1417622.jpg)
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浅谈电动机断相运行的危害及预防
Damage due to Loss of Phase Operation of Motor and its Prevention
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采用PWM调制方法来控制三相定子电压,使关断相延迟,让关断相的电流变化平滑进行。
Through the use of PWM modulation mode control three phase stator voltage , delayed turn off , make the turn off phase current smooth change .
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可控制交流50Hz,380V,三相异步电动机的直接起动停止,并具有过载和断相及失压保护。
Able to directly control AC50Hz , 380V asynchronous motor with the protection of overload , phase-failure and voltage-absent .
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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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增氧机保护器能在断相、过载、欠压的情况下起保护电机作用,适合于0.18~60kw的三相异步电动机配套使用。
The protective equipment for aerator can protect the motor from damage under the condition of phase-off , over-load and lower-voltage , suited to form a complete set with the three phase asynchronous motor .
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中性点不接地系统断相故障实例分析
Analysis of Phase out Fault in Neutral Non - grounded System
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交流异步电动机断相机理分析及保护措施
Analysis and protective measures on loss of phase of asynchronous motor
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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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高压电动机的断相故障分析与保护配置
Analysis and protection configuration for the phase failure of the HV 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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浅析电动机断相运行的危害与对策
Analysis on Damages and Countermeasures for Motor Open Phase Running
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自起动稀土永磁电机断相运行时步有限元分析
Open-phase operation analysis of line-start rare-earth permanent magnet motor with time-stepping FEM
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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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变结构电力系统互感线路断相故障断口模型
Open Conductor Model of Mutual Coupling Line in Power Systems with Variable Configurations
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电动机断相运行和电流-电压等比规律
Phase Failure Operation and Current-voltage Equal-ratio Rule of Motor
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浅谈三相异步电动机断相运行及其热继电器保护
Talking on Open-phase Running of a Three-phase Asynchronous Motor and Its Thermorelay 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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变结构电力系统断相故障的新算法
A New Algorithm for Open Conductor Faults in Power Systems with Variable Structures
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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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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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交流电动机断相器保护设计原则
Principles for Designing Phase Failure Protection of AC Motors
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电动机断相运行和断相保护方案
Mode of motor phase failure operation and its protection
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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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单片机三相交流电断相报警器
SCM three - phase AC phase breaking alarm
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纺织电气断相保护的研究
Phase Protecting in Electronic System for Textile Production