scholarly journals Enhancing safety and reliability of electric power supply to consumers through safe electricity networks of up to 1 kV

2021 ◽  
Vol 7 (2) ◽  
pp. 97-102
Author(s):  
Yurii Shelekh ◽  
◽  
Myroslav Sabat ◽  
Vladyslav Lysiak ◽  
Lidija Parashchuk ◽  
...  
Keyword(s):  
Power Supply ◽  
Electric Energy ◽  
Electrical Network ◽  
Electrical Safety ◽  
Technical Solution ◽  
Additional Advantage ◽  
Electric Power Supply ◽  
Safety And Reliability ◽  
Emergency Mode ◽  
Electrical Installation

The study presents an electric network that allows both increasing the level of electrical safety and eliminating one-phase damage to the electrical network without switching off the consumer's electric energy. The application of the network does not require significant investments. The technical feasibility of implementing an electrical installation with voltage values in the emergency mode on the leading parts, which does not exceed the permissible values for normal mode, is demonstrated. An additional advantage of the proposed technical solution is the immutability of the voltage at the customer's outputs, which allows it to operate normally also in the emergency mode of the electrical installation.

Justification of the power supply system for life support of rescue units and the injured population during field deployment

2021 ◽  
Vol 92 ◽  
pp. 142-155
Author(s):  
V. A. Sednev ◽  
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Power Supply System ◽  
Life Support ◽  
Electric Energy ◽  
Supply System ◽  
Energy Sources ◽  
Electric Power Supply ◽  
Injured Population ◽  
Temporary Accommodation

Introduction. Increasing of number, scale and duration of the consequences of emergency situations associated with the violation of the conditions of normal living of people requires the creation of temporary field accommodation points for the affected population and rescue units. At the same time, electric power supply in field temporary accommodation facilities plays a crucial role in the complex of tasks and measures aimed at providing life to the injured population and rescue units. At the same time, there are no mobile autonomous sources of electric energy for providing life support to people in the field in the organizational and staff structure of rescue units, and the existing sources of electric energy in the complexes of equipment used in areas of emergency situations cannot be used for these purposes. Therefore, it is necessary to develop a scientific and methodological approach to determine necessary and sufficient number of sources of electric energy for the power supply of the life support of the injured population and rescue units when they are placed in field temporary accommodation points. The purpose of the study. Electric power supply of field temporary accommodation points for the injured population and rescue units, ensuring the required reliability of electric power supply, maximizing its efficiency in the conditions of possible resource constraints and minimizing the influence of the uncertainty factor in the planning of electricity consumption. Research methods. The main provisions of the calculation of electrical loads, system theory, set theory, probability theory and the apparatus of mathematical statistics. The results of the study. A methodology has been developed that allows to justify the power of electric energy sources for the power supply of field temporary accommodation points for the injured population and rescue units, rational options for the power supply system, the nomenclature and number of electric energy sources for the life support of people in the field; to calculate the electric network; to evaluate the operation of the power supply system, based on the probability of failure-free operation of the source of electric energy; to justify the composition of engineering means to ensure the creation of the power supply system. Conclusion. The scientific and methodological approach for determining the composition of electric energy sources for the power supply of life support for the injured population and rescue units when they are placed in field temporary accommodation points is justified, which also allows to resolve the contradiction between the need to organize the power supply of life support for people in temporary accommodation points and the lack of a reasonable structure of electric energy sources for these purposes. Keywords: temporary accommodation point, injured population, rescue formation, consumers, electric power supply, organization

The Classification of Grounding Method on the Low-Voltage Distribution System

2014 ◽  
Vol 556-562 ◽  
pp. 1674-1677
Author(s):  
Chen Lei Liu
Keyword(s):  
Power Supply ◽  
Distribution System ◽  
Low Voltage ◽  
Rapid Development ◽  
Electric Energy ◽  
Electrical Safety ◽  
Voltage Distribution ◽  
Protective Measures ◽  
Indirect Contact

Electricity is the foundation of modern industrial and people’s daily life,as the most basic energy. The higher desire for power supply quality and reliability has been advanced along with the rapid development of national economy.Given the importance of electrical safety in the application of electric energy,it’s necessary to be aware of electricity protective measures,especially the protective earthing ways as the indirect contact protective measures.

scholarly journals Os Conselhos de Consumidores de Energia Elétrica como instrumento de participação social - The Electricity Consumers’ Councils as an instrument of social participation

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Alex Cavalcante Alves ◽  
Joseanne Carla De Aguiar Santos
Keyword(s):  
Decision Making ◽  
Public Administration ◽  
Power Supply ◽  
Electric Energy ◽  
Electricity Sector ◽  
Electric Power Supply ◽  
The Public ◽  
Participatory Institutions ◽  
Public Hearings ◽  
Final Consumer

<p>A Constituição de 1988, além de marco da redemocratização brasileira, institucionalizou a participação da sociedade nas ações do Estado, o que também foi sendo aperfeiçoado com a legislação posterior a 1988, paralelamente à profissionalização da Administração Pública e ao desenvolvimento do campo de públicas. Este trabalho aborda especificamente os Conselhos de Consumidores de Energia Elétrica, instituições participativas que representam os interesses coletivos dos consumidores de energia. No setor elétrico, os Conselhos exercem a função de examinar questões ligadas ao fornecimento de energia elétrica ao consumidor final. Tal papel pode ser desempenhado por meio da participação em audiências públicas realizadas pela ANEEL, de forma a auxiliar na formulação de atos normativos, permitindo ao Regulador analisar os impactos de suas propostas sob a ótica do consumidor antes da tomada de decisão. O trabalho pretende demonstrar a evolução nessa participação ao longo dos últimos anos, evidenciando a consolidação desse instrumento da democracia participativa.</p><p> </p><p>The 1988 Constitution, as well as the framework of the Brazilian redemocratization, institutionalized the participation of society in the actions of the State, which was also perfected with legislation after 1988, in parallel with the professionalization of the Public Administration and the development of the public policies field. This paper specifically addresses the Consumers Councils of Electric Energy, participatory institutions that represent the collective interests of energy consumers. In the electricity sector, the Councils perform the function of examining issues related to the electric power supply to the final consumer. This role can be played through participation in public hearings held by ANEEL, in order to assist in the formulation of normative acts, allowing the Regulator to analyze the impacts of its proposals from the perspective of the consumer before the decision making. This paper also intends to demonstrate the evolution of this participation over the last years, evidencing the consolidation of this instrument of participatory democracy.</p>

Application of Markov Chain to Determine the Electric Energy Supply System Reliability for the Cargo Control System of LNG Carriers

2013 ◽  
Author(s):  
Erick Miguel Portugal Hidalgo ◽  
Dennis Wilfredo Roldán Silva ◽  
Gilberto Francisco Martha de Souza
Keyword(s):  
Markov Chain ◽  
Control System ◽  
Power Supply ◽  
Energy Supply ◽  
Power Supply System ◽  
Electric Energy ◽  
Supply System ◽  
System Failure ◽  
Energy Supply System ◽  
Electric Power Supply

The natural gas industry, as well as other industrial activities, is not free from accidents, which can cause serious consequences to the integrity of people and properties. For this reason, it is necessary to develop studies to determine what are the possible causes of LNG leakage during the loading or unloading operation. This paper aims to determine the reliability of the Cargo control system electric power supply system applying Markov Chain technique. This reliability modeling tool is used because the system consists of several components in passive parallel. Based on the reliability analysis maintenance recommendations are proposed aiming at reducing system failure probability. The method used in this paper is divided in three steps. The first step consists in carrying out a study to identify what are the components that are part of electric power supply system. The second step involves the reliability analysis of the electric energy supply system. Finally some maintenance recommendations are presented aiming at reducing system failure rate. This analysis is used for the analysis of a LNG carrier operating in a Brazilian harbor indicating the most probability failure modes of this system and the most suitable maintenance actions to avoid them.

scholarly journals Prototipe Sistem Elektronis Berbantuan PC untuk Pemantauan Kondisi Pasokan Daya Listrik

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Arief Goeritno ◽  
Yudha Herutama
Keyword(s):  
Personal Computer ◽  
Power Supply ◽  
Electrical Power ◽  
Electronic System ◽  
Process Data ◽  
Electric Power Supply ◽  
The Status ◽  
Control Port ◽  
And Control ◽  
Electrical Installation

The prototype of the electronic system aided personal computer for monitoring the condition of the electric power supply have been done. The principle for fabricating the prototype of the electronic system based on the mechanism of handshaking system between electronic systems and line port for a printer. Program embedded on a personal computer with certain specifications for the operation of the system. The prototype of the electronic system consists of 3 (three) main subsystems, namely the diver circuit, sensor circuit, and the circuit of electrical installations analogy. Measuring against the prototype performance is carried out on the port line for the printer, driver circuit, sensor circuit, and electrical installation analogy circuit. The path performance on the port line for the printer is focused on high or low logic on each port. Data port condition is used to process data transmission, while the status and control port conditions are used to process data reception. The performance of the control circuit is very much determined by inputting data from the user so that it is closely related to the data port. The performance of the sensor circuit is very much determined by the condition of the electrical installation analogy, so it is closely related to the status and control ports. The performance of the circuit of electrical installation analogy is marked by the presence of a voltage value, and if the voltage measured in the electrical installation is 220 volts AC, then it is as an installation marker inactive condition. Overall the system is capable of 8 remote monitoring points so that the condition of the electrical power supply through the electrical panel can be monitored at any time.

ELECTROMAGNETIC COMPATIBILITY OF LOW-POWER AUTONOMOUS POWER SUPPLY EQUIPMENT

2020 ◽  
Author(s):  
V.N. Delyagin ◽  
◽  
V.I. Bocharov ◽  
Keyword(s):  
Low Power ◽  
Power Supply ◽  
Electromagnetic Compatibility ◽  
Autonomous Systems ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Equipment ◽  
Electrical Network ◽  
Nonlinear Load ◽  
Harmonic Components

The article presents the results of research on the evaluation of electromagnetic compatibility of elements of the power supply system for Autonomous low-power consumers. The subject of the study is a quantitative assessment of the level of harmonic components of currents and voltages in systems: a permanent magnet generator-a DC-to-AC Converter-a consumer with a nonlinear load and interfering interaction of jointly working elements of this system. The level of harmonics of voltage and current in the local electrical network (farm), repeatedly (from 3 to 10 times) exceeds the regulatory requirements. The multiplicity of the increase in electrical energy losses (K-Factor) is from 5("pure" sine of the DC-AC Converter) to 20 (rectangular meander). When designing Autonomous systems, it is necessary to provide measures to reduce the loss of electrical energy, exit from standing electrical equipment and false triggering of electronic devices in the consumer of electric energy

scholarly journals Electric power supply management of the construction site in the interests of facilitating electrical safety

2019 ◽  
Vol 140 ◽  
pp. 08006 ◽  
Author(s):  
Maxim Polyukhovich ◽  
Vyacheslav Burlov ◽  
Victor Mankov ◽  
Amangeldy Bekbayev
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Electrical Energy ◽  
Complex Problem ◽  
Industrial Safety ◽  
Electrical Safety ◽  
Construction Site ◽  
Construction Work ◽  
Electric Power Supply ◽  
Critical Resource

A critical resource in construction work is electricity. Various problems that can lead to a breakdown of the electric power supply to the construction site can arise during its active operation. The basis of the activity is the decision of the person. Activity is based on the model. The dependence of human activity on electrical energy has formed the need to ensure uninterrupted electric power supply. To solve the complex problem of electric power supply, it is necessary to develop a theory. A properly constructed theory has three levels, three components: methodology, methods, technology. The decision maker (DM) perceives the world around him and carries out his activities through processes. A process is an object in action at a fixed purpose. A constructive methodology should form the condition for the existence of a process with which the DM works. The goal of research is to select and justify the conditions for the existence of the electric power supply process in the interests of guaranteed achievement of the goal of the industrial safety.

Recommendations on the composition of means for power supply and life support of the affected population and rescue units during field deployment

2021 ◽  
Vol 93 ◽  
pp. 208-225
Author(s):  
V. A. Sednev ◽  
Keyword(s):  
Electric Power ◽  
Power Supply ◽  
Power Supply System ◽  
Life Support ◽  
Electric Energy ◽  
Supply System ◽  
Energy Sources ◽  
Electric Power Supply ◽  
Electrical Loads ◽  
Temporary Accommodation

Introduction. The increasing number and duration of the consequences of emergency situations associated with the violation of the conditions of normal living of people requires the creation of autonomous temporary field camps to accommodate the affected population, which, as a rule, create and maintain rescue formations. In the complex of tasks aimed at providing life support to the affected population and rescue units in field camps, their electric power supply plays an important role. However, there are no autonomous sources of electric energy for the power supply of life support for people in the field in the organizational and staff structure of rescue units. At the same time, it is necessary to determine the number of electric energy sources for the power supply of life support for people in field camps, not only taking into account the application of the provisions for calculating the electrical loads of consumers, but also taking into account additional factors, in particular, taking into account the output of electric energy sources for operational reasons, the failure of service personnel, the organization of technical support of the power supply system, its planning, repair. The purpose of the study. Electric power supply of field points of temporary accommodation of the affected population and rescue units, ensuring the reliability of their electric power supply, minimizing the influence of the uncertainty factor when planning their power consumption. Research methods. The main provisions of the calculation of electrical loads, system theory, set theory, probability theory and the apparatus of mathematical statistics. The results of the study. Recommendations have been developed on the composition of electric energy sources for the power supply of life support to the affected population and rescue units when placed in field camps, taking into account additional factors affecting their composition, in particular, the output of electric energy sources for operational reasons, the failure of maintenance personnel, the organization of technical support of the power supply system and other issues. Conclusion. The scientific and methodological approach is justified, which allows taking into account additional factors affecting the formation of the composition of electric energy sources for the power supply of life support of people in temporary accommodation points, which, in combination with scientific and methodological approaches to substantiate the electrical loads of consumers, allows us to develop a comprehensive scientific and methodological approach to substantiate the composition of electric energy sources for the power supply of life support of people. The resulting composition of electric energy sources can be refined and serves as an example of assessing the stability of the power supply system, the criterion of stability of which is its ability to provide consumers with electric energy. Keywords: temporary accommodation point, affected population, rescue formation, consumers, electric power supply, organization

scholarly journals CLASSIFICATION OF POWER NETWORK ELEMENTS ON RELIABILITY-RELATED ASPECTS IN THE ASTRAKHAN REGION (ON THE EXAMPLE OF “ASTRAKHANENERGO” - A BRANCH OF PJSC “IDNC OF THE SOUTH”)

2019 ◽  
pp. 48-56
Author(s):  
Aislu Muratovna Kubenova ◽  
Sergey Vladimirovich Golovko
Keyword(s):  
Power Supply ◽  
Large Scale ◽  
Network Reliability ◽  
Electric Energy ◽  
Poor Quality ◽  
Power Grids ◽  
Electrical Network ◽  
The South ◽  
Electric Networks ◽  
Voltage Loss

Distribution electric networks are an important link in the system of production, transmission and consumption of electric energy. The precise configuration and setting up the relay protection and emergency automation devices, including the right choice of the device working parameters, are of great importance for the reliable operation of power grids. Problems with power supply may appear either as poor quality of electricity supply (instability or distortion of voltage, its frequency fluctuation, low capacity of the power grid), or as its unreliability voltage loss. Recently, in the Astrakhan region there has been recorded an increase of electrical loads due to the growing number of enterprises and energy supply building in industry and household. The search for variants with reduced capital investments in the process of the large-scale and expensive energy construction, as well as the selection of simple and relevant proposals for the development and elaborating power supply systems are important issues for designing power lines. The analysis of the electrical network reliability factors of “Astrakhanenergo”, the branch of “IDGC of the South”, PJSC has been done.

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