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Condition Monitoring Techniques and Simulation of Transformer Differential Protection Scheme using MATLAB




Condition Monitoring, Differential Protection, Power Transformers


Differential Protection is expected to play a key role in the protection system of power transformer. Two of the most typical weaknesses of the power transformer differential protection are long delays or even a failure to operate in case of heavy internal faults with current transformer saturation, and unwanted operations for external faults. These disadvantages can be avoided if the position of the fault is quickly and correctly determined. The differential protection relay is used for power transformer differential protection and is capable of protection transformers of any vector group. This paper deals with steps of modeling the differential relay with the Matlab Simulink model and the application of the modeled relay in testing a protection system. In this case, simulating the differential current transformer that includes vector group compensation. Simulation done with main part are , setting of the relay, zero sequence elimination of the ground connected transformer current transformer, vector compensation of the secondary winding current transformer output and final decision to trip the breakers in an event of a fault.

Other Details

Paper ID: IJSRDV3I90509
Published in: Volume : 3, Issue : 9
Publication Date: 01/12/2015
Page(s): 830-833

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