scholarly journals Analysis of the Efficiency of Composite Supports in Electric Networks of the Republic of Belarus

2019 ◽  
Vol 62 (1) ◽  
pp. 15-23
Author(s):  
M. I. Fursanov ◽  
P. A. Sazonov
Keyword(s):  
Electric Power Industry ◽  
Structure Design ◽  
Power Lines ◽  
Overhead Line ◽  
Electric Networks ◽  
Western Countries ◽  
Advantages And Disadvantages ◽  
The Republic ◽  
The One ◽  
Overhead Power Lines

Modern conditions for the development of the electric power industry increase the requirements in the field of technical conditions and reliability; thus, in a number of Western countries electric networks are being restructured on the basis of safe, environmentally friendly and reliable composite supports. The article analyzes the structure, design and methods of construction of overhead power lines with composite supports that are more promising than traditional ones. The properties, main characteristics and advantages of materials for the production supports of fiberglass and of wood are considered. The advantages and disadvantages of composite and wooden racks are compared and it is shown that most of the requirements for the supports of overhead power lines are met by composite supports. It is discovered that the existing and promising solutions that enable effective use of composite supports in the construction of an overhead line are quite diverse. Currently, in the electrical networks of Western countries, the most common structural model of the construction of an overhead line is the one the one that alternates composite and wooden supports in a certain sequence. The best option of the use of composite supports along with wood ones is the following ratio: four composite supports to one wooden one (method of construction “4/1”). The advantages of this method of construction of the power line are presented, viz. a significant increase in the mechanical strength of the structure of supports and wires as well as the safety of their maintenance. The results of technical and economic calculation that confirm the advantage of constructing a 10 kV distribution line according to the “4/1” scheme are presented. The implementation of composite supports in the electric networks of the Republic of Belarus in the long term will allow obtaining a tangible financial effect by reducing the cost of operation of the overhead line and because of a significant period of operation of composite racks, which is an undoubted advantage in conditions of the modern market economy. 

scholarly journals Emergency analysis in the 35 kV network of the northern part of the Kola Peninsula.

2020 ◽  
Vol 11 (7-2020) ◽  
pp. 5-11
Author(s):  
Galina P. Fastiy ◽  
◽  
Vera V. Yaroshevich ◽  
Keyword(s):  
Kola Peninsula ◽  
Power Lines ◽  
Joint Stock Company ◽  
Stock Company ◽  
Electric Networks ◽  
North West ◽  
The North ◽  
Overhead Power Lines

The analysis of technological violations in the 35 kV network in one of the Kolenergo subdivisions of Public joint-stock company “IDGC of the North-West”, namely the Northern Electric Networks, was performed. The violations were systematized. The analysisconcluded that the greatest number of violations occurs on overhead power lines.

scholarly journals ПОКРЕТАЊЕ ПОСТУПКА НОРМАТИВНЕ КОНТРОЛЕ ПРАВА У РЕПУБЛИЦИ СРБИЈИ

TEME ◽  
2019 ◽  
pp. 1419
Author(s):  
Bálint Pásztor
Keyword(s):  
Rule Of Law ◽  
Constitutional Court ◽  
The Rule Of Law ◽  
Democratic Culture ◽  
Advantages And Disadvantages ◽  
Institutional Values ◽  
The Law ◽  
The Republic ◽  
The One

The author of the article analyzes the specificities of the normative control of the law, i.e. the procedure of assessing the constitutionality and legality of the law in the Republic of Serbia, with the aim of detecting historical and legal preconditions of the effective functioning of the rule of law. The historical perspective of the development of the constitutional judiciary in the Socialist Federal Republic of Yugoslavia and the Republic of Serbia, as well as the analysis of the experiences of various systems of control of constitutionality and legality, open the contextual, scientific-historical and pragmatic dimensions of understanding. The specificity of the system of normative control is reflected in its triplicity, meaning that three institutes are known that characterize different procedural possibilities (to initiate the process of assessing the constitutionality and legality of general acts). The paper is written in order to point out the dichotomy of the proposal and initiative of the procedure of the assessment of constitutionality and legality, as well as the advantages and disadvantages of the ex officio procedure. Furthermore, the author wanted to point out the essential and procedural differences between the proposal, the initiative and the constitutional complaint, especially analyzing the purpose of retaining the institute of the initiative in the light of the existence of the constitutional complaint and the fact that the initiative does not imply the automation of the initiation of proceedings. The dilemma that the article opens concerns the possibility that in the case of abolishing the initiative as an institution accessible to all, is it possible to preserve the democratic culture and the participation of citizens, furthermore is it possible to abolish the fundamental institutional values and freedoms of a legal state and the rule of law? The paper opens other issues of importance for the establishment of an effective constitutional architecture that concern: the width of the circle of authorized proposers of normative control before the Constitutional Court; the dual role of the constitutional judiciary: on the one hand protection of the Constitution, constitutionality and legality, on the other hand effective protection of human and minority rights and freedoms.

scholarly journals The first period of double interstate military conflict on the African horn (1960-1977)

2019 ◽  
Vol 48 (2) ◽  
pp. 108-113
Author(s):  
Andrii Pospielov
Keyword(s):  
Great Britain ◽  
Interstate Conflict ◽  
Horn Of Africa ◽  
Conflict Zones ◽  
Military Conflict ◽  
Western Countries ◽  
The Status ◽  
The Creation ◽  
The Republic ◽  
The One

The article is devoted to the first period of the interstate military conflict in the Horn of Africa. The events of 1960-1977 are revealed. In two conflict zones. On the one hand, the buildup and manifestation of an interstate military-political confrontation between Ethiopia and the Republic of Somalia, and on the other hand, aspects of the emergence of an intrastate military conflict in Ethiopia itself related to the Eritrean issue are analyzed. Moreover, it is noted that the province of the Ethiopian Empire, and since 1974 the Republic of Eritrea, de facto was not so much an internal structure of the indicated state as a semi-legal state, fought for its independence. This process was provoked in 1945-1959. Great Britain, Italy and the UN. These world players created a situation of the unification of British and Italian Somalia into a single state - the Republic of Somalia, depriving it after the creation of those territories that were inhabited by related tribes. Thus, Western countries pushed Somalia to search for ways to unite with the territories of Ogaden and Kenya exclusively by military means. And Somalia, which was experiencing the shortcomings of all Somalia, was forced to seek a partner who would provide official Mogadishu with the means of warfare, against the background of constant help not to her, but exclusively to neighboring Ethiopia. That is why the Republic of Somalia has become an exclusively Soviet ally since the late 1960s. An example of the creation of a single Republic of Somalia and an attempt to have Western countries as an ally, and after 1974 the countries of socialism, the maritime power of Ethiopia, actually created a complex of double interstate conflict in this region of East Africa. It was in him that the status of Somalia as a country without related territories and Eritrea as the usual province of Ethiopia was fixed, which did not suit their peoples and leaders.

On the Problem of Reliably Determining the Induced Voltage on a Disconnected Power Line

2021 ◽  
Vol 5 (5) ◽  
pp. 17-25
Author(s):  
Andrey V. GORSHKOV ◽  
◽  
Ilya V. KOROLEV ◽  
Olga S. SHCHERBACHEVA ◽  
◽  
...  
Keyword(s):  
Power Lines ◽  
Electrical Safety ◽  
Overhead Line ◽  
Induced Voltage ◽  
Single Measurement ◽  
Regulatory Documents ◽  
Methodological Errors ◽  
Overhead Power Lines ◽  
Methodological Guidelines ◽  
Significant Underestimation

An analysis of the current regulatory documents on electrical safety shows that the methodological guidelines for determining the induced voltage on disconnected overhead power lines (OHL) located near the operating OHL contain methodological and methodological errors. These errors can lead to a significant underestimation of the determined induced voltage. It has been established that the method specified in the regulatory documents for determining the maximum possible value of the induced voltage by means of a single measurement with subsequently multiplying the measured value by a certain recalculation factor k does not allow in principle to determine it reliably. To determine a reliable value at a certain point of the disconnected overhead line, in general, it is necessary to measure the induced voltage at the same point of the overhead line at different values of the currents affecting the overhead line. The article formulates the main and auxiliary tasks of determining the reliable values of the maximum possible induced voltage. The main principles of the methods for solving the stated tasks are considered.

scholarly journals DISCONNECTIONS IN 0.4 KV ELECTRIC NETWORKS: QUANTITY, REASONS AND COUNTER MEASURES

2020 ◽  
Vol 15 (2) ◽  
pp. 77-81
Author(s):  
Aleksandr Vinogradov ◽  
Vadim Bol'shev ◽  
Alina Vinogradova
Keyword(s):  
Transmission Lines ◽  
Economic Effect ◽  
Technical Condition ◽  
Power Lines ◽  
Diagnostic Tools ◽  
Electric Networks ◽  
Counter Measures ◽  
Condition Monitoring Systems ◽  
Overhead Power Lines ◽  
Quantitative Indicators

Studies were carried out with the aim of analyzing blackouts in electric networks of 0.4 ... 10 kV and determining the main countermeasures to reduce their number. As an indicator of reliability, the failure rate of the main network elements is analyzed. The total number of outages considered included consumer outages, outages due to damage to 0.4 kV overhead power lines (transmission lines) and transformer substation (TS) equipment. The studies were carried out on the basis of the data of Mtsenskiy, Orloyskiy and Pokrovsky districts of electric networks of “Oreloenergo” – a branch of PJSC “MRSK Center” and JSC “Oreloblenergo” in the period from 2015 to 2017. Most of the causes of damage to power line equipment of 0.4 and transformer substations of 10/0.4 kV can be prevented by increasing the level of its maintenance and conducting timely diagnostics. The determination of quantitative indicators of the effectiveness of countermeasures to reduce the number of outages is difficult due to the lack of technical condition monitoring systems in electric networks. The main measures aimed at solving this problem in 0.4 kV networks are the transition to power lines with insulated wires; improving the design of switching devices, switches and transformer leads; the use of diagnostic tools; disaggregation of power lines. Replacing the equipment of electric grids with new types provides the economic effect of reducing the frequency of failures, as well as saving due to a reduction in maintenance costs. In particular, replacing transformers with hermetic ones allows reducing electricity shortfalls by 43.6%, and insulated wires by 95.3%

CALCULATION OF ACTIVE POWER LOSSES IN THE GROUNDING WIRE OF OVERHEAD POWER LINES

2016 ◽  
Vol 2016 (4) ◽  
pp. 23-25
Author(s):  
A.V. Krasnozhon ◽  
◽  
R.O. Buinyi ◽  
I.V. Pentegov ◽  
◽  
...  
Keyword(s):  
Active Power ◽  
Power Lines ◽  
Power Losses ◽  
Active Power Losses ◽  
Overhead Power Lines

Recommendations of The Ombudsman’s Dilemma: Between Law Enforcement Officials and Protection of Credibility

2018 ◽  
Vol 2 ◽  
pp. 1-12
Author(s):  
Dyah Adriantini Sintha Dewi
Keyword(s):  
Law Enforcement ◽  
Public Service ◽  
Public Services ◽  
Point Of View ◽  
Law Enforcement Officials ◽  
Muslim Majority ◽  
The Republic ◽  
The Government ◽  
The One ◽  
Oversight Body

The Ombudsman as an external oversight body for official performance, in Fikih Siyasah (constitutionality in Islam) is included in the supervision stipulated in legislation (al-musahabah al-qomariyah). Supervision is done so that public service delivery to the community is in accordance with the rights of the community. This is done because in carrying out its duties, officials are very likely to conduct mal administration, which is bad public services that cause harm to the community. The Ombudsman is an institution authorized to resolve the mal administration issue, in which one of its products is by issuing a recommendation. Although Law No. 37 of 2018 on the Ombudsman of the Republic of Indonesia states that the recommendation is mandatory, theombudsman's recommendations have not been implemented. This is due to differences in point of view, ie on the one hand in the context of law enforcement, but on the other hand the implementation of the recommendation is considered as a means of opening the disgrace of officials. Recommendations are the last alternative of Ombudsman's efforts to resolve the mal administration case, given that a win-win solution is the goal, then mediation becomes the main effort. This is in accordance with the condition of the Muslim majority of Indonesian nation and prioritizes deliberation in resolving dispute. Therefore, it is necessary to educate the community and officials related to the implementation of the Ombudsman's recommendations in order to provide good public services for the community, which is the obligation of the government.

Algorithm for Identifying the Faulty Section in Combined Cable and Overhead Power Lines Based on Surge Portrait Recognition

2018 ◽  
Vol 3 (3) ◽  
pp. 11-17 ◽  
Author(s):  
Aleksandr L. KULIKOV ◽  
◽  
Anton A. LOSKUTOV ◽  
Pavel S. PELEVIN ◽  
◽  
...  
Keyword(s):  
Power Lines ◽  
Overhead Power Lines

Development of a Stand for Demonstration of Human Injury by Touch and Step Voltages Near a 10 kV Overhead Line

Vestnik MEI ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 39-45
Author(s):  
Ruslan K. Borisov ◽  
◽  
Sergey S. Zhulikov ◽  
Sergey I. Khrenov ◽  
Yuliya S. Turchaninova ◽  
...  
Keyword(s):  
Electric Shock ◽  
Research University ◽  
Moscow Region ◽  
Experimental Investigations ◽  
Clear Understanding ◽  
Overhead Line ◽  
Electric Networks ◽  
Calculation Results ◽  
High Voltage Engineering ◽  
Human Injury

An objective to develop a labor protection engineering stand was set forth as part of the research and development work "Carrying out theoretical and experimental investigations and development of stands for demonstrating the danger of electric shock at a training ground" for visually demonstrating the danger of injuring a person by touch and step voltages in 3…35 kV medium voltage electric networks. The technical solutions for practically implementing the stand were adopted based on an analysis of regulatory documents, conditions under which dangerous touch and step voltages occur, the most typical human injury cases, and calculation results. Specialists of the National Research University Moscow Power Engineering Institute Department of High Voltage Engineering and Electrophysics, working jointly with specialists of PJSC Rosseti Moscow Region have developed, manufactured, tested, and put into operation a stand for demonstrating human injury by the touch and step voltages when a 10 kV wire falls on the ground, on a car, and when a fault of a live wire on the overhead line support occurs. With the stand having been put in use at the PJSC Rosseti Moscow Region Training Center Ground, this will allow the staff to form a clear understanding of the electric shock danger, to focus on the effects caused by voltage and current, and thereby significantly reduce electrical injuries.

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