Solutions for Diagnosing Faults in Asynchronous Motor Stator Through a Ferrofluid Installation
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2015, Vol 38, Issue 2
Abstract
Due to their reliability, robustness and multitude of variants of motors, electric machines are commonly used in industrial drives. Although they are relatively simple pieces of equipment, asynchronous motors can sometimes malfunction because of various reasons. Whether it is a problem in the supply network (lack of a phase, wrong phase sequence, different phase voltages, etc.) or an internal fault in the stator winding (interrupted winding, reversing the winding so that it begins with the end, shortened coils, etc.) motors diagnosis was a constant concern among specialists. Although a number of classic solutions are known, generally pertaining to the type of defect assumed, this paper proposes a completely new approach applicable to all types of anomalies that may occur in the functioning of these engines.
Authors and Affiliations
Ovidiu-Magdin ȚANȚA, Adrian-Neculai ROMANESCU, Mihai CENUȘĂ, Ilie NIȚAN, Mihaela POIENAR
A Design of New Brands of Martenzite Steels by Artificial Neural Networks
The paper proposes a model-based approach for the design of martenzite structure steels with improved mechanical and plastic characteristics using proper composition and thermal treatment. For that purpose, artificial ne...
Research on Influence of Metallurgy Factors on the Quality of Metal Components in Metal-Ceramic Prosthetic Restorations
The paper summarizes the characteristics of the metal component in the structure of metal-ceramic fixed prostheses and the technological conditions for obtaining it. The paper presents partial results of an experimental...
Manufacture of Stud Link Chain Cable made of Grade U1 and U2 Steel
We have analyzed the fabrication technology of the link chain cable made of grade U1 and U2 steel from TREFO S.A. Galati and we had in view during the experiments several rolling programs. The main characteristics of a p...
Recycling of Cellulosic Waste in the Energy Sector
Biomass is one of the Earth’s most abundant and precious resources. It offers not only food but also energy, materials used for construction, chemicals and much more. Biomass has always been used for generating energy si...
Nanostructured Surface for 38MoCrAl09 Steel by Nitriding in Nitrogen Atmosphere and YAG:Nd Pulse Laser Activation
YAG:Nd pulse laser is usually used for cutting and welding. The paper is based by experiments using YAG:Nd pulse laser (KVANT 17-CIS made). Technological modules were assembled for laser beam deviation and for relative s...