Benchmarking the reliability of medium-voltage lines

Kolcun, Michal; Kornatka, Mirosław; Gawlak, Anna; Čonka, Zsolt

doi:10.1515/jee-2017-0031

Cited by 14 publications

(10 citation statements)

References 3 publications

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“…The necessity of making for investment in the power industry is motivated mostly by the fact that the transmission and distribution networks include worn-out elements and are largely ineffective, with high loss and low reliability. The directions of development for the distribution network are as follows [4][5][6][7][8]:…”

Section: Introductionmentioning

confidence: 99%

Profitability of investment in power distribution industry

Gawlak

2019

E3S Web Conf.

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Striving towards improving efficiency in the power sector puts an obligation on distribution companies to seek ways of reducing electricity loss. The highest energy loss in the distribution network is attested in electricity meters, in LV and MV lines and in MV/LV transformers. The paper analyses effectiveness of investment aimed to reduce energy loss in a distribution company. The analysis is carried out with the use of SPBP, IRR and NPV.

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Section: Introductionmentioning

confidence: 99%

Profitability of investment in power distribution industry

Gawlak

2019

E3S Web Conf.

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“…Analysis of operation of the distribution network can be carried out from different perspectives; one of them is supply reliability which is the key notion in the estimation of the supply continuity and service quality [1][2][3][4][5][6][7][8]. Evaluation of the reliability of LV networks is one of the important points considered in the analysis of the distribution power system.…”

Section: Reliability Of Distribution Networkmentioning

confidence: 99%

Determination of reliability indices of the distribution network based on data from AMI

2019

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Improving reliability of a power network is an issue of great importance for power distribution companies. The aim stated by the President of Energy Regulatory Office to improve the reliability of the distribution network includes steps towards improving the monitoring and control of the network managed by distribution companies. Ensuring continuity of energy supply is one of distribution companies’ duties and one of the criteria used to assess the effectiveness of network operation. Distribution companies all over the world employ indices SAIDI, SAIFI and MAIFI to determine mean values concerning the number of time of interruptions per consumer in a year. The paper deals with methods of correct and precise determination of the values of the reliability indices SAIDI, SAIFI and MAIFI by means of the application Advanced Metering Infrastructure in the distribution network.

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“…This kind of loss can be greater than load loss and in the case of low power transformers, the ratio of idle to load loss can be about 4-5. Reactive idle loss in transformer cores is compensated for by means of capacitor batteries connected directly to the transformer [5][6][7][8][9]. The power of such capacitors should be equal to the power of the rated idle loss.…”

Section: Introductionmentioning

confidence: 99%

“…5a) is one of the moves that should be implemented towards improving energy efficiency. In this respect, special attention should be paid to power transformers, which are one of the key elements of the power system [4,7,11]. Energy losses occurring in MV/LV transformers constitute from about 30 to 60% of total losses in LV networks [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Active and Reactive Power Losses in Distribution Transformers

Kolcun¹,

Gawlak²,

Kornatka³

et al. 2020

ACTA POLYTECH HUNG

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The problem of energy quality has recently gained much recognition, one of the reasons being, that there is an increasing number of devices which require energy that meets high quality standards. An improvement in this respect, can be achieved by effective management of reactive power flow in the power system. Maintaining balance in active and reactive power is of key importance for the flawless functioning of the power system. This paper discusses theoretical issues underpinning calculations of active, reactive power and of energy loss in MV/LV transformers. Based on the parameters of transformers and data from consumer meters on active and reactive power, active and reactive power and energy loss was obtained, with the view to assess the efficiency of active power and energy transfer through MV/LV transformers.

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Benchmarking the reliability of medium-voltage lines

Cited by 14 publications

References 3 publications

Profitability of investment in power distribution industry

Profitability of investment in power distribution industry

Determination of reliability indices of the distribution network based on data from AMI

Active and Reactive Power Losses in Distribution Transformers

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