Surveying Power Substation Designs: A Critical Analysis of Existing Literature | Chapter 3 | Contemporary Perspective on Science, Technology and Research Vol. 9

Power substations are essential installations of electrical power systems, responsible for directing the flow of energy, diversifying routes, modifying voltage to make it suitable for different applications. Present at the beginning and end of transmission and distribution lines, substations play a fundamental role in the reliable and efficient operation of the electrical system, allowing the transmission of electricity over long distances and its distribution to end consumers. The growing demand for electricity and consequently the expansion of the electrical system has contributed to the increase in these installations and consequently studies in the area. This work presents a literature review, based on the bibliometric analysis method, of the researches developed in the area of substation arrangement. The objective of the work is to present the state of the art related to the subject of electrical energy substation arrangement, indicating the most relevant publications on the topic. For this study, academic productions from undergraduate and graduate courses, journal articles and publications in conferences on the Scopus and Capes Periodicals platforms were considered due to their scope, organization of data and relevance. After analyzing the articles presented, it appears that, despite being of great importance for the electrical sector, the subject is not frequently discussed in the literature. Regarding the countries that have published the most in the last 5 years about the arrangement of substations, China stands out, which is in first place with 14 publications. Brazil occupies the sixth position in related productions on the subject.

Author(s) Details:

Paulo Roberto Duailibe Monteiro,
Universidade Federal Fluminense, Brazil.

Jullia Mercedes Miranda,
Universidade Federal Fluminense, Brazil.

Thiago Trezza Borges,
Universidade Federal Fluminense, Brazil.

Please see the link here: https://stm.bookpi.org/CPSTR-V9/article/view/14168

Auditing of Conformity and Security Level for 400/220/110/20 kV Urechesti Power Substation from Romania | Chapter 13 | Contemporary Perspective on Science, Technology and Research Vol. 8

Increasing the level of security of any system involves identifying risks and establishing the means of prevention and protection intended to control them, and for this reason, the authors consider that the auditing of the level of safety and health at work is a very relevant means of ensuring a safe and healthy workplace, especially in the case of high and very high voltage power substations, where the danger of electric shock is very high. This paper addresses the verification of OHS, by "INCDPM Bucharest method" – The National Research and Development Institute of Occupational Safety - "Alexandru Darabont" – Auditing of conformity with legal and other provisions" - to a 400/220/110/20 kV power substation, for the purpose of verifying knowledge and conformity with legal and other provisions at the workplaces level and assessing the efficiency or failure of the OHS management system of the analyzed economic entity management, and after implementation it will serve as a tool to verify the functioning of the system. The auditing of the OHS shows that the power substation under consideration has an overall level of security close to maximum and a low overall risk level, which means that OHS rules are met and the auditing has had a positive effect.

Author(s) Details:

Daniel N. Fita,
University of Petrosani, 332093 Petrosani, Romania.

Sorina D. Stanila,
University of Petrosani, 332093 Petrosani, Romania.

Ioan L. Diodiu,
'Lucian Blaga' University of Sibiu, 550025 Sibiu, Romania.

Adina Tatar,
'Constantin Brancusi' University of Targu Jiu, 210185 Targu Jiu, Romania.

Adrian M. Schiopu,
University of Petrosani, 332093 Petrosani, Romania.

Florin Grecu-Muresan,
University of Petrosani, 332093 Petrosani, Romania.

Please see the link here: https://stm.bookpi.org/CPSTR-V8/article/view/14108

Study on Modelling a 400/220 KV Power Substation (Critical Infrastructures) – The Simulation of the Permanent Regime with EDSA Programme| Chapter 9| Current Approaches in Science and Technology Research Vol. 13

 This study aims to demonstrate the operation of the 400/220 kV Rosiori power substation from Romania's National Power Grid during the permanent regime, as well as the behaviour of the power substation's electric equipment in relation to this phenomenon. According to the acquired results, we recommend that the power substation's quality parameters be operated in accordance with the new ENTSO – E (European Network of Transmission System Operators for Electricity) regulations. The study's goals are as follows:In the context of ensuring the safety and security of electricity supply, each new or upgraded power substation, as critical power infrastructure, should be subjected to a well-functioning risk assessment, which includes: simulation of different operating modes, assessment of occupational health and safety risks, assessment of security risks, and assessment of reliability parameters.

Author (S) Details

Daniel N. Fita
University of Petrosani, 332093 Petrosani, Romania.

Emilia Grigorie
University of Petrosani, 332093 Petrosani, Romania.

DragosPasculescu
University of Petrosani, 332093 Petrosani, Romania.

Florin G. Popescu
University of Petrosani, 332093 Petrosani, Romania.

Alina D. Handra
University of Petrosani, 332093 Petrosani, Romania.

Cristian Rada
University of Petrosani, 332093 Petrosani, Romania.

Crina Barb
University of Petrosani, 332093 Petrosani, Romania.


View Book :https://stm.bookpi.org/CASTR-V13/article/view/2806

Grounding Method for Reliable Operation of Power and Distribution Transformers Substation | Chapter 10 | Emerging Issues in Science and Technology Vol. 4

Equipment grounding is a necessary and conclusive parts of an installation process in electrical power system networks particularly in power substations. Over years, grounding or earthing of substations has been carried out primarily through preparation of an earth mat which is simply interconnected with several Earth-rods buried around the substation or any other equipment under installation. Apart from the fact that this approach is old, it is in addition required several efforts to have an acceptable and reliable results. Thus, a more sophisticated, reliable and results oriented is required to be in place. This paper presents a modern approach to earthing of transformer substations and other allied equipment. The approach negates the constraints that are obtained in the old approach. A 15MVA, 33/11kV power transformer substation as well as a 500kVA, 11/0.415kV distribution transformer substation’s installations were selected as the case study. A flow chart which describe the procedures of carrying out the proposed modern method of earthing is developed and applied to the two case studies.   The various earth resistances measured on both cases are presented and discussed. The results from these case study indicates that the earth resistance values obtained from this new approach are reliable and in compliance with IEEE Standards 80,142, 81 and 1100.  

Author(s) Details

Dr. Lambe Mutalub Adesina 
Department of Electrical and Computer Engineering, College of Engineering and Technology, Kwara State University, P.M.B. 234, Malete, Ilorin, Nigeria.

Tolulope O. Akinbulire
Department of Electrical and Electronic, Faculty of Engineering, University of Lagos, Nigeria.

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/184