Analysis of a short-circuit ring impact problem and design of a new ventilator for a 625 kVA Generator
Authors: Oslinger, J. L.;
Palacios, Jairo A.; Jaramillo, G. A.
Journal: ScienceDirect
Publication year: Túnez, 2005.
Keywords: Generadores
sincrónicos, Elementos finitos, CFD.
Abstract: The needing of an energy supplier was
to solve an impact problem presented at the damper winding ring or
short-circuit ring of a 625 KVA generator and to redesign a fan for it. The
principal restriction was the time. It should be done in fifteen calendar days,
working with drawings of the machine, operational data and from specifications,
taking measures from the real machine during just one day while the machine’s maintenance
begun in order to solve the impact problem which real cause was not found yet.
The answer was found working with the concept of Simplified Virtual Laboratory
(SVL) using Finite Elements Analysis (FEA) and Failure Analysis from visual inspection.
A fast and effective method which combines simplified 2D Computational Fluid
Dynamics (CFD) Models and analytical formulation from electrical machines
bibliography allowing time and money saving is shown.
