The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a method for assess the risk index in a power transformers park, risk index is a metric that allows park administrator to ensure an optimal physical asset management, allocating properly financial and human resources in operation and maintenance actions. Assessing risk index requires calculating two secondary sub-index termed failure probability and consequence factor. Those indexes...
This paper presents a method for assess the risk index in a power transformers park, risk index is a metric that allows park administrator to ensure an optimal physical asset management, allocating properly financial and human resources in operation and maintenance actions. Assessing risk index requires calculating two secondary sub-index termed failure probability and consequence factor. Those indexes...
Geothermal energy has not been fully exploited in the Ecuadorian context because there are not many studies in this area. This renewable energy presents as a good alternative due its low operative-maintenance cost, and continuous operation. This work describes the main features of geothermal energy and its residential applications. In Ecuador, the Ministry of Electricity and Renewable Energy has identified...
This paper aims to propose a methodology for the capacity estimation of transformers within Centrosur concession area in Cuenca. The study is based on measurements made with quality equipment, records of electrical energy consumption of the users involved, demographic data, growth rate, socioeconomic conditions collected from different official bodies such as Ministries and National Agencies.
In today's economy, there is a strong need to forecast and predict future load demands in order to estimate the amount of load required and to properly prepare the planning purposes. This paper presents the development of a module with the ability to calculate the spatial load forecasting in any area of study. First, the electrical distribution system must be defined with all its components. After...
This paper aims to determine and identify the best technical placement for fault locators — FLs — on the distribution network, in order to improve the reliability in the system. The international indices such as SAIFI and SAIDI are evaluated in two scenarios; the first one analyze the power system in its current configuration whereas the second one assumes that FLs are installed in different places...
The implementation of devices or sensors developed over open source electronic platforms is a very important key of the projects aiming for promoting concepts such as Internet of things and Smart Cities. Due to the heterogeneity of these projects and especially the lack of a standard to regulate the communication process between the sensors and the application server, taking into account that many...
This paper presents a description of the common tests used in power transformers health index assessing. Power transformer condition evaluation is bases on humidity, acidity, dielectric strength, dissipation factor, dissolved gas analysis and degree of polymerization. Existing normative brings aceptable limits for each test, this boundaries depends on aplication and operational voltaje level. With...
This paper aims to determine the acceptability of residential electric vehicle (EV) on distribution system networks. Since, in Ecuador the last year has been an important impulse for changing the conventional vehicles for electric ones, the government is launching new policies in order to foster the CO2 reductions by some alternatives; the first one considers deploying in the medium term EV in the...
Nowadays, the distribution networks are facing with new challenges such as the electrical vehicle connection, the emergence of new charges such induction cookers especially in South America and a strong integration of distributed generation at the low voltage level. In addition, the costumers are transforming their habits in order to become much more active in the network. Hence, this paper assesses...
Due to world economic situation, Electrical Distribution Utilities perform studies for automation and planning of distribution systems prioritizing their economic resources through projects related with technical, economic and social efficiency. During last years, Ecuadorian Electrical Sector has left aside determinant projects related with the efficiency, since there is not a good budget assignment...
This document presents a proposal to asset health index of transformers up to 230 kV. with upgraded thermal paper using fuzzy logic. The health index is a useful asset management tool, and provides a warning of the status of the unit allowing the correct operation and maintenance. This method use oil as inputs routine tests, such as humidity, acidity, dielectric strength, dissipation factor, dissolved...
A case study for the analysis of load flows in weakly meshed radio systems is presented. The problems associated with the running of medium voltage flows are quite critical especially when the network topology is rather arbitrary geospatially. Many of the software currently available on the market consume excessive memory on the calculation of the resolution of the equations of nodes to get the brownouts...
The Galapagos Islands are a fragile ecosystem which belongs to Ecuador. About 26.000 people are located in four islands of the archipelago and 60% of the population is concentrated on Santa Cruz Island. Combined technologies are used for providing electricity such as thermal, photovoltaic and wind. The government of Ecuador is fostering the policy zero CO2 emissions within the islands. In order to...
Liberalized markets and strong integration of distributed generation changes significantly the operation and control of distribution grids. Traditional network must be able to integrate new services such as electric vehicles, distributed generation, new loads as inductions cookers without major problems. These new grids should manage those new services intelligently, keeping power quality, safety...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.