A Case Study: Size Optimization of Core Frame of Oil Filled Power Transformer
Keywords:
Core Frame, Optimization, Oil Filled Transformer, Transformer, CAE Tools, HyperMesh.Abstract
A transformer is a vital component in any industry. If the transformer fails, the electric supply fails.
So it is very necessary that the transformer must work without anyinterruption. Transformer has many
components and all are essential for its smoothworking. So every component in transformer is critical. It is said
that the core and winding arecalled the heart of a transformer. The core frame is mounted on top and bottom of
thecore and winding assembly. Core frame is made up of mild steel. In transformer, thereare several losses
occur which decrease the efficiency of transformer. `Stray loss' is oneof the major loss which affects badly on
performance of transformer. This stray lossoccurs due to the presence of mild steel in transformer. So if the
weight of the core frameis reduced by optimization, it will have large impact on the reduction of stray lossesand
improvement of transformer efficiency. Thus, the case of the optimization ofcore frame to reduce the weight of
mild steel used has been taken. For the solution towards this case, one particular model of transformerassembly
has been taken and using CAE tools, the size of the core frame structure hasbeen reduced by the size
optimization.
