Event under the auspices of the Ministry of Economy of Slovak Republic

Study on possibilities for improvement of energy efficiency of power transformers in electric distribution networks

Rumen Kirov
Department of Electric Power Supply and Equipment, Technical

Valentin Gyurov
Department of Electric Power Supply and Equipment, Technical University of Varna

Ilian Ilirev
University of mining and geology "St. Ivan Rilski" Sofia

Georgi Georgiev
Plethora Ltd.

     Last modified: 2017-06-04

: The study presents effective methods for optimal loading of power transformers. The methods are developed by different criteria:
- Minimal power losses;
- Minimal energy losses;
- Minimal years expenditures, calculated with Net Present Value (NPV) methodology
The research includes comparative analysis of methods with theoretical and graphical approaches. The study demonstrates significant difference between results from these three criteria and shows the most adequate approach for achievement of optimal loading of power transformers.


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