Researchers portal

Portal del personal investigador

Searching. Please wait…

Portal del Investigador > en > Publications > publication-detail

Study of the current performance of the European power transformer fleet

Abstract: In many countries, diverse legislations are today asking for more rational use of energy. For this reason, several initiatives are nowadays promoting a reduction of the overall energy consumption. The European Union has published a Directive 2009/125/EC which fix eco-design requirements to energy-related products. One of these products is power transformers which are a basic piece of generation, transmission, distribution and consumption of electrical energy. The operation of these machines implies the transformation of energy, a part of this energy is dissipated in electrical and magnetic circuits. The amount of losses produce by transformers is defined during the design of these machines. So, they must comply with the above EU Directive. In fact, the Official Journal of the European Union has set a list of energy efficiency limits to be fulfilled by new machines sold in Europe (Commission Regulation 548/2014). This article presents three parts. The calculation of the maximum performance is presented in the first part. This is independent of the load percentage, the impedance and the voltage level. A description of the European fleet of power transformer, up to 100MVA is presented on the second section. In the last part of this work, the efficiency of the fleet is analysed using the maximum performance concept and considering the EU Regulation.

Other conference communications or articles related to authors from the University of Cantabria

Ampacity forecasting using neural networks - Conference object
Preliminary results of a power quality survey in a distribution network based on no-gap PQ meters - Conference object
Free simulation tools for power quality and grid-integration of renewable energies cases - Conference object
Moisture effect on the dielectric response of improved insulating papers impregnated with mineral oil - Conference object
Use of a decision tree to define transformer oil contamination from on-load tap-changer gases to ensure power quality in the grid - Conference object
Assessment of the temperature distribution into a transformer through tensile index - Conference object
Estimating the age of power transformers using the concentration of furans in dielectric oil - Conference object
Numerical study of the cooling capacity of several alternative liquids in zig-zag cooling system of a power transformer - Conference object
A comparison of mechanical and ultrasonic anemometers for ampacity thermal rating in overhead lines - Conference object
Differences using measured and calculated solar radiation in order to estimate the temperature of the conductor in overhead lines - Conference object
A comparison of different methodologies for rating definition in overhead lines - Conference object
Study of the distribution of temperatures in the windings of a transformer after suffering a short-circuit - Conference object
Hydraulic assessment of nanofluids based on mineral oil and natural ester in windings of power transformers - Conference object
Dielectric properties enhancement of vegetal transformer oil with TiO2, CuO and ZnO nanoparticles - Conference object
A comparative between IEEE and EN in the transformer derating when supplying nonsinusoidal load current. A practical case - Conference object
The role of the dc-bus in voltage sags experienced by three-phase adjustable-speed drives - Conference object
Propagation of voltage sags in industrial power networks - Conference object
Comparative study of two cogeneration systems based on energy recovery of fumes from a casting process - Conference object
A comparison of transformer HF models and their application to PQ analysis - Conference object
Advances in phase change materials for thermal solar power plants quality - Conference object
Small wind energy systems: state of the art and new challenges - Conference object
Laboratory test system for small wind energy generators - Conference object
Power flow analysis of distribution systems with large-scale wind and conventional energy generation - Conference object
Increasing grid integration of wind energy by using ampacity techniques - Conference object
Fluid-thermal analysis of the cooling capacity of a commercial natural ester in a power transformer - Conference object
Power quality impact of a small wind energy conversion system connected to the LV grid - Conference object
Fault location in low-voltage distribution networks based on reflectometry - a case study - Conference object
Indirect estimation of overhead line ampacity in overhead lines integrating wind farms - Conference object
Analysis of a real case of ampacity management in a 132 kV network integrating high rates of wind energy - Conference object

Authorship: Ortiz F., Fernández C., Olmo C., Carcedo J., Renedo C., Delgado F.,

Congress: International Conference on Renewable Energies and Power Quality: ICREPQ (2015 : La Coruña)

Publisher: The European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ)

Publication date: 01/04/2015

No. of pages: 5

Publication type: Conference object

DOI: 10.24084/repqj13.508

ISSN: 2172-038X

UCrea Repository Read publication

Authorship

FELIX ORTIZ FERNANDEZ

CRISTINA FERNANDEZ DIEGO

CRISTIAN OLMO SALAS

JUAN CARCEDO HAYA

CARLOS JAVIER RENEDO ESTEBANEZ

FERNANDO DELGADO SAN ROMAN

Download reference

Bib Ris