Identification of the power transformer 110/23 kV failure

Brandt, Martin S.; Peniak, Adrian

doi:10.1109/elektro.2014.6848953

Cited by 5 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering the measurements presented in [29,30], the model can be further characterized as applicable for hight-voltage (HV)/MV transformers too; our own measurements and the results discussed within [27] nevertheless also show that the model is unfortunately not suitable for simulating the LV side of an MV/LV transformer. …”

Section: Transformer Modelmentioning

confidence: 99%

A Multiconductor Model of Power Line Communication in Medium-Voltage Lines

Franek

Fiedler

2017

Energies

View full text Add to dashboard Cite

Most power line communication (PLC) models are designed to date simulate power lines as two-wire lines. However, in alternating current (AC) electrical distribution, the two-wire option is seldom applied, and medium-voltage lines are most often based on the three-phase configuration. In this context, the influence of the ground, which constitutes another conductor with specific parameters, cannot be neglected. Two-wire models are characterized by limited accuracy, not allowing us to simulate certain major phenomena affecting PLC. This, for example, could embody the answer to the question of whether it is more advantageous to transmit a signal independently through each phase, reference the signal with respect to another phase or to use the ground as a reference. This paper discusses a multi-conductor model that eliminates the disadvantages outlined above; the proposed model exploits the multi-conductor telegrapher's equations. In order to be able to include medium-voltage (MV)/ low-voltage (LV) transformers in medium-voltage network models, we constituted a transformer model. The designed models were validated on a real medium-voltage network. To be able to evaluate the suitability of the PLC, the noise in the medium voltage network was measured in order to determine the signal-to-noise ratio (SNR).

show abstract

Section: Transformer Modelmentioning

confidence: 99%

A Multiconductor Model of Power Line Communication in Medium-Voltage Lines

Franek

Fiedler

2017

Energies

View full text Add to dashboard Cite

show abstract

“…This revised text provides a more concise and clear explanation of the diagnostic methods used to identify faults in the study. It also highlights the successful application of inter-winding SFRA measurements to detect axial distortion in the tertiary winding [20]. Statistical indices are preferred for the comparison of SFRA test results on transformers due to their simple and easy application [21,22].…”

Section: Introductionmentioning

confidence: 99%

Deformations in Power Transformers by Sweep Frequency Response Analysis and a Sample Field Study

GEZEGİN,

USTA

2023

EJT

View full text Add to dashboard Cite

Power transformers are expensive pieces of electrical equipment that are used to connect transmission and distribution networks. Power transformers are inspected and tested on a regular basis throughout production, shipment, installation, and operation. There are several ways for determining the mechanical integrity of power transformers. Power transformers are monitored using these diagnostic procedures, and any breakdowns and issues are avoided. Scanning Frequency Response Analysis (SFRA) is an efficient method for determining the condition of the transformer core and windings. To evaluate the state of the transformer winding, SFRA, winding direct current resistance, and winding capacitance tests were done in this study. In the case study, a comprehensive case analysis was done on the SFRA test findings for a 50/62.5 MVA power transformer, and the results were analyzed. The results reveal that the SFRA test finds structural winding problems in transformers with high accuracy.

show abstract

Identification failure of 3 MVA furnace transformer

Brandt

2016

2016 Diagnostic of Electrical Machines and Insulating Systems in Electrical Engineering (DEMISEE)

View full text Add to dashboard Cite

Identification of the power transformer 110/23 kV failure

Cited by 5 publications

References 1 publication

A Multiconductor Model of Power Line Communication in Medium-Voltage Lines

A Multiconductor Model of Power Line Communication in Medium-Voltage Lines

Deformations in Power Transformers by Sweep Frequency Response Analysis and a Sample Field Study

Identification failure of 3 MVA furnace transformer

Contact Info

Product

Resources

About