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Paper Information

Title: 

THERMAL CALCULATION AND OPTIMIZATION OF POWER TRANSFORMER'S WITH DIRECTED OIL CIRCULATION WINDINGS

Type: PAPER
Author(s): BARATI M.,KESHAVARZI M.T.
 
 
 
Name of Seminar: INTERNATIONAL POWER SYSTEM CONFRENCE
Type of Seminar:  CONFERENCE
Sponsor:  SHERKATE TAVANIR
Date:  2004Volume 19
 
 
Abstract: 

OPTIMUM DESIGN OF POWER TRANSFORMERS AND THEIR COOLING SYSTEM WITH DIRECTED OIL CIRCULATION CAN BE DETERMINED WHEN THE LOSSES, HOT SPOT TEMPERATURE AND ITS LOCATION IS EXACTLY KNOWN. IN THIS TYPE OF TRANSFORMERS, HOT SPOT TEMPERATURES AND THEIR LOCATION DEPEND ON LOSSES AND ARRANGEMENT OF OIL DIRECTING WASHERS IN THE WINDING. IN THE PRESENT PAPER WITH TAKING INTO ACCOUNT THE LOSSES CALCULATION AN OIL FLOW NETWORK MODEL IS DEVELOPED. DEPENDENCY OF DENSITY, VISCOSITY, PRANTEL NUMBER AND SPECIFIC HEAT OF OIL FLOW AND DEPENDENCY OF LOSSES OF EACH DISK TO TEMPERATURE ARE MODELED IN ORDER TO DETERMINE THE IMPORTANT PARAMETERS SUCH AS TEMPERATURE RISE OF WINDING, TEMPERATURE OF INDIVIDUAL DISKS, VELOCITY OF OIL IN DUCTS, PRESSURE DROP IN THE WINDING, HOT SPOT TEMPERATURES AND THEIR LOCATIONS, OPTIMUM ARRANGEMENT OF WASHERS AND SO ON.

 
Keyword(s): TRANSFORMER, OPTIMIZATION, WINDING LOSSES, TEMPERATURE RISE, DIRECTED OIL CIRCULATION
 
 
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