The company Enda Transmission, a subsidiary of Ende Corporation, in order to guarantee reliability and maximum availability of the equipment associated with the 500 kV Carrasco transmission line – Santiváñez, made the removal of dielectric oil samples, reactors of Main bar line and reactors, which were subsequently analyzed in the laboratory of oils that the company has in the city of Cochabamba.

For the extraction of oil samples, safety protocols and standards are followed international to guarantee the integrity of the process.Subsequently, the oil is analyzed in the Ende oil laboratory in Cochabamba.

Due to the voltage level, the power and its importance in the interconnection trunk system (STI), the Power transformers have online monitors of gas operation parameters generated, moisture content, partial discharges in bushings, oil temperature and windings, by What, the results obtained in the oil laboratory are a way to verify metrologically the measured values and therefore the increase in the reliability of the equipment.

ENDE Transmisión currently has a modern dielectric oil analysis laboratory in Cochabamba, to be able to carry out periodic monitoring of the oil condition of the transformers, with the purpose of making reconditioning and/or change of it in a timely manner, before the oil continues its deterioration and can produce failures in the transformers.

ENDE Transmisión, Ende Corporation, maintenance in a reserve reactor did (coil high voltage) in the Santivañez 230 KV substation, part of the interconnection trunk system (STI). The availability of these reserve reactors is of the utmost importance to an eventuality of unavailability of the other 6 reactors in service.

The maintenance of the reserve reactor consisted of changing a radiator following a leakage of Oil detected during monthly inspection works.The escape was located in the union of the main ducts to the cooling radiator, which prevented its repair, reason by which was decided to replace the entire radiator.

The radiator replacement works were completed successfully and without any incident, in addition The hermeticity review of the unit was carried out, being fully operational for use according to request.

To carry out this maintenance activity in the substation, a equipment of oil filtering called ETEA 500, with which the oil level was lowered inside the tank that It contains the reactor, in such a way that it allowed the extraction of the radiator without the oil spill. All work stages such as being disassembly and assembly of the radiator, were carried out with personnel specialized technical and professional transmission.

ENDE Transmisión, Ende Corporation, with the purpose of facilitating the control and supervision of the electricity grid that operates, has implemented a monitoring system in its SCADA system with a visualization tool called Electrical Board, which allows visualizing important data that the company needs to analyze and/or follow up continuous in “real time” of electrical behavior in the stages of generation and transmission of the chain of electricity.

When the SCADA system administrator is aware that centralizes, practically 100% of the electrical data of high voltage from Bolivia, different “boards” were developed, including for generation and transmission with indicators considered important to visualize.In this first stage a board has developed to show The behavior of the total generation versus the total demand of the system in megawatts, and another that shows a map of Bolivia with the demand of each department.Highlighting that the data shown in these figures are refresh, in the Board, automatically in a period of two minutes (programmable).

Today companies need information related to their management indicators, for some decades Gosses have been implemented boards, even in the financial area.These are boards that show a Summary of the behavior of some area of the company, usually through management indicators.End of transmission He currently uses this tool that has called it “electrical boards.”

UCOM-MHE-ENDE-01-06-2023.- The presidents of Bolivia, Luis Arce, and Argentina, Alberto Fernández, They opened this Thursday in the community of Yaguacua, of the Tarijeño municipality of Yacuiba, the line of International Interconnection Bolivia – Argentina “Juana Azurduy de Padilla de 132 kilovolts (kV)”, which It represents a historical milestone in the energy integration of both countries.

This work represents “the brotherhood between two countries that have a common history, each fighting for Improve the quality of life of Bolivians and Argentines.This interconnection line that joins Bolivia and Argentina is also important for the presence of an Argentine president – the second to visit Yacuiba after Juan Domingo Perón – who renews friendship and affection between two sibling peoples ”, The Bolivian head of state expressed.

Meanwhile, Fernández said that with Arce “we share the same look of our peoples, with equality and social justice, to promote and build a Latin America that is integrated (…).One of the How Lucho works for the progress of Bolivia and the peoples of Latin America is here, in the Construction of an electric plant that carries energy to the North Argentina, which needs it so much. ”

In turn, the Minister of Hydrocarbons and Energies of Bolivia, Franklin Molina Ortiz, said that “the Electric interconnection is a historical milestone, a pride for the country, because the work was executed by Bolivian hands, for our workers.This project represents the effort of our company National Electricity (ENDE), the Subsidiary Ende Andina y Ende Transmisión Argentina S.A.(ETASA).

He explained that with the implementation of this project, the export of surpluses of electric power to the Argentine territory, with a maximum of 120 megawatts (MW), without affecting the Reliability or quality of electricity supply on the Bolivian side.

The project, which required an investment of approximately Bs 365 million, includes 120 kilometers of electric lines from the yaguacua substation and crosses rural land to the Tartagal substation, In the Argentine province of Salta, he added.

It also covers the expansion of the yaguacua substation and installation of an autotransformer bank of 150 megavoltamperio (MVA) 230/132 kV and the extension of the Tartagal 132/33/13.2 kV substation for The entrance of the line from Bolivia.

With the electrical interconnection between the two nations, an old yearning is specified and the Energy integration in the southern cone, since Bolivia will add to the system that allows the exchange Electric with Argentina, Uruguay, Paraguay and Brazil.

The “The Youth in Ende Transmisión” program was developed with the purpose of contributing to strengthening the leading role of Bolivian young people, within the framework of the D.S.No. 4887.

This training program is made up of three knowledge areas:

Sexual and reproductive health (sexually transmitted infections and contraceptive methods) Emotional Intelligence Skills Development Conversation about laws in favor of young people and their perspective regarding their exercise.

These activities were planned so that the 32 young people improve their knowledge in these themes and, therefore, have a better opportunity to exercise their rights and respect those of others.

In order to improve the location of failures in the electric power lines, in the transmission, a subsidiary of Ende Corporation, “it made the change of differential relays (protection equipment) of the Punutuma transmission line – the races, by relaysLast generation line differentials with failure location by the traveling wave method.Which implied substantial modifications to the control and protection circuits, the change of satellite watches and modifications to the telecommunications system so that the relays communicate between substations, ”said the general manager of the company, Ing. Filiberto Soto Encinas.

Currently, “the local -wavefall location technology is the most accuracy for the location of failures in transmission lines, this technology detects an electrical pulse that is generated at the beginning of the fault.This transitory moves to each end of the line at a speed close to the speed of light.The teams of both extremes detect the arrival time of the transient wave and translate it with a lot of precision at a distance in kilometers, ”added Ing. Soto.

The Punutuma – the races transmission line have 181 kilometers in length, in addition to having areas in which access to towers is quite difficult due to the geographical characteristics of the land, so it is essential to have a method of calculation of distance fromprecise and reliable failures, such as the one that has just been installed.

The transmission lines are the most susceptible components to fail in a power system, since they extend to hundreds of kilometers and are exposed to different climatic conditions (atmospheric discharges, wind, rain, snow, among others), so thatIt is common that they suffer failures in times in which the conditions are severe.“A failure in a transmission line can damage the insulators that hold drivers, so they must be inspected after a failure.To facilitate the inspection of damaged insulators, the protection relays calculate the failure distance from the substation in which they are installed to the failure and thus the assigned personnel can move to the structure that suffered the damage and perform inspection tasksand corrective maintenance, ”the manager culminated.

UNICOM / ENDE, 12-05-2023.- BETWEEN JANUARY AND APRIL OF THIS YEAR, THE NATIONAL ELECTRICITY COMPANY (ENDE) IMPROVED THE CONTROL AND CALIBRATED PROCESS OF ITS DIELECTRIC TRANSFORMER OIL LABORATORY, WHERE ANALYSIS IS PERFORMED PHYSICOCHEMICAL AND DISSOLVED GASES, PART OF THE SPECIALIZED MAINTENANCE OF TRANSFORMERS IN ORDER TO GUARANTEE THE USEFUL LIFE OF THESE IMPORTANT EQUIPMENT IN THE SUPPLY OF ELECTRICITY.

At present, the aforementioned laboratory – considered the most modern in Bolivia – provides services to companies electric placed throughout the national territory.

Dielectric oil is an essential component in power transformers, refrigerates and provides insulation to the internal components of these equipment, which are a fundamental part of the transport of electricity from generation sources to Bolivian homes.

Ende Corporation, through its Ende Transmission company, manages the laboratory where the transformers’ oil condition is monitored to diagnose their status in a timely manner through the analysis of their dielectric oil.

The state electricity acquired state -of -the -art equipment to perform more precise and reliable analysis of dielectric oil and increased its capacity with the objective of meeting the growing demands of the electricity sector and processing with efficient precision a greater number of samples.

Likewise, with the purpose of raising the reliability of the laboratory, work procedures were established in accordance with international standards and is ready to meet the demand of companies of the electrical sector nationwide.

Ende Corporation guarantees the efficiency and reliability of the production chain of electricity from the generation, transport and distribution and implements a range of specialized services to preserve and optimize the infrastructure of the national electrical system.

UNICOM / ENDE, 03-04-2023.- In order to guarantee the continuity and quality of the supply of electricity in the department of Tarija, the National Electricity Company (ENDE) initiated the “Annual Preventive Maintenance of High Voltage Lines”.

In the month of March the inspection of the 230 kV Las Carreras – Tarija 1 line was carried out, where Ende’s technical staff carried out an action plan for component maintenance observed in high voltage towers.In the execution of this task different Work methodologies, without having the need to cut the electricity supply to the population Tarijeña.

Within this annual maintenance planning, inspection with promotion is contemplated to high voltage towers that could present components with some breaks or damage that They could produce some future failure.Among the main works is the change of chains of insulators, which allow the normal operation of the transmission lines and prevent interruptions in the electric power supply.

Inspections also contemplate the verification of possible undue approaches to vegetation to transmission facilities.To do this, technical staff makes use of technological instruments that verify that the safety distances required by law.

This is expected that all maintenance activities can prevent cuts unexpected and allow the proper functioning of the electrical energy transmission network in Tarija

UNICOM / ENDE, 19-04-2023.- The National Electricity Company has executed different projects for that the department of Tarija has electricity from the interconnected system National (SIN), leaving aside the supply by isolated systems.

The year 2013, the first interconnection project called “Line 230 KV Punutuma – Races – Tarija ”, allowing Tarija for the first time with electricity from the system National interconnected.

The project included the construction of a high voltage line of more than 255 kilometers in 230 Kilovoltios (KV).On the occasion, the new substation was built the races (located in the Bridge, border between the departments of Chuquisaca and Tarija) and the Tarija substation (located in the Monte Sud zone).This project allowed the connection of the Electric System isolated from Tarija to the National Interconnected System (SIN), enabling the improvement of supply conditions electric for the economic development of the region.

2015, the “Line 230 KV Chaco – Tarija” project concluded, with an approximate length of 138 kilometers in 230 kilovolts, which allowed the injection of the energy generated in the plant South thermoelectric plant to the national interconnected system, allowing a significant improvement in the Attention to the demand for electricity throughout the country.

In the 2022 management, the projects “line 115 kv tarija – La Angostura” and “line 115 kV Angostura – Bermejo ”, the latter allowed the municipality of Bermejo to have energy from energy of the SIN, before the constant request of the population that demanded an electricity supply without interruptions and quality.In addition, the construction of the 115 kV tarija line – Future Angostura will allow Tarija have electricity generated by the “La Ventolera” wind project.For this work They built more than 182 kilometers of high voltage lines and two modern substations.

All these projects allowed, thanks to the investment of the National Government, the Department of Tarija has a robust high voltage electricity, quality, reliability and energy from renewable generation sources such as solar, wind and hydroelectric.

UNICOM /ENDE, 25-04-2023.- High voltage network maintenance works began this month of April in the Urubó substation of the Department of Santa Cruz, with the implementation of “Scaffolding isolated ”, equipment that allows you to perform work at electrical substations energized. The objective is to guarantee the high voltage electricity supply without the need to suspend the service.

Maintenance in the Urubó electric substation began with the control of hot spots identified with thermographic images, specialized personnel of ENDE Transmisión used used the isolated scaffolding to manipulate the network of 230, 115 and 69 kilovolts, energy that feeds the supply electric of the city of Santa Cruz.After several working days the system of this electrical infrastructure, allowing to guarantee a safe and quality high voltage supply.

Isolated scaffolding are specialized equipment for work in electrical substations, are Manufactured in high -strength epoxiglass material, capable of isolating high voltage energy.

Before starting with maintenance activities, the technical staff of the state electricity passed by a training process in electrical work techniques, skills that allow he Management of components energized safely and with the use of this equipment.

These tasks will continue in substations throughout the country, the objective is to optimize the supply electric with the use of cutting -edge technology.Ende performs a constant update of Equipment to make improvements in the low, medium and high voltage network, in this way the system Bolivian electric is strengthened as one of the safest and reliable systems in the region South American.

finally,ValleSaidThatEndeCorporationWorksContinuouslyToGuaranteeASystemQualityElectricAndReachTheMostRemoteRuralRegionsOfTheCountryWithThisBasicService