scholarly journals Improving Performance of the Braking Process, and Analysis Torque-Speed Characteristics of the Induction Motor

2018 ◽  
Vol 8 (6) ◽  
pp. 3585-3591 ◽  
Author(s):  
O. M. Al-Barbarawi
Keyword(s):  
Induction Motor ◽  
High Resistance ◽  
Dynamic Process ◽  
The Other ◽  
Process Time ◽  
Electromagnetic Brake ◽  
Braking System ◽  
Three Phase ◽  
Two Phases ◽  
Braking Process

This study aims to investigate, analyze, discuss and illustrate an effective and reliable fast braking system used in a three-phase induction motor by combining two or more different conventional braking methods such as dynamic-plugging and electromagnetic-plugging. The plugging process is implemented by disconnecting one of the stator phases and connecting it with an electromagnetic brake while interchanging the other two phases. The dynamic process is executed by inserting high resistance in the rotor circuit of the motor. The performance of the torque-speed characteristics of the induction motor will be studied and analyzed through the dynamic process. Mathematical models have been developed and simulated. Results show that the braking process time is greatly reduced.

A superamphiphobic surface with a hydrogen peroxide-triggered switch to antithetic fluid repellence in a liquid–liquid–air three-phase fluid system

2020 ◽  
Vol 56 (31) ◽  
pp. 4312-4315
Author(s):  
Yihan Sun ◽  
Jinxia Huang ◽  
Zhiguang Guo
Keyword(s):  
Hydrogen Peroxide ◽  
The Other ◽  
Fluid System ◽  
System P ◽  
Arbitrary Phase ◽  
Three Phase ◽  
Air System ◽  
Two Phases ◽  
Phase Fluid

Fluid repellence in one arbitrary phase for repelling the other two phases in a generalized liquid–liquid–air system was achieved on a hydrogen peroxide-treated surface.

Online Detection of High-Resistance Connections With Negative-Sequence Regulators in Three-Phase Induction Motor Drives

2015 ◽  
Vol 51 (2) ◽  
pp. 1579-1586 ◽  
Author(s):  
Michele Mengoni ◽  
Luca Zarri ◽  
Yasser Gritli ◽  
Angelo Tani ◽  
Fiorenzo Filippetti ◽  
...  
Keyword(s):  
Induction Motor ◽  
High Resistance ◽  
Motor Drives ◽  
Online Detection ◽  
Induction Motor Drives ◽  
Negative Sequence ◽  
Three Phase

scholarly journals A New Windings Design of 24 Slot Capacitor-Start Capacitor-Run Induction Motor

2018 ◽  
Vol 8 (5) ◽  
pp. 3463
Author(s):  
Zuriman Anthony ◽  
Erhaneli Erhaneli
Keyword(s):  
Induction Motor ◽  
Conventional Method ◽  
Single Phase ◽  
The Other ◽  
Three Phase ◽  
Cage Rotor

The conventional method of a single phase induction motor windings design usually constructed the main and auxiliary windings in both slot. So, there was a complicated winding design if that compare to the three-phase induction motor. Because of that, this study was aimed to design a new windings design of a single phase induction motor that construction like a three-phase induction motor. This study was focused to design a 24 slot capacitor-start capacitor-run induction motor. The windings in the motor are divided in 3 group like a three-phase induction motor. The two windings act as a main windings and the other winding act as auxiliary winding. The current rating of the winding of the proposed single-phase induction motor was 2.74A. The performances of the proposed method were compared with the performances of a three-phase induction motor that had the same current rating. The motor used as a comparator was a three-phase induction of 380/220V, 2.74/4.7A, Y/Δ, cage rotor, 4 poles, 1.5 HP, 1400 RPM, 50Hz. The result of this study showed that the proposed design of single phase induction motor could be operated with better performances than the three-phase comparator induction motor’s.

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