In order to guarantee the optimal quality and state of the insulator chains of the first 500 kV transmission line of Bolivia Carrasco – Santivañez, Ende Transmission has carried out a Important status measurement work of the porcelain insulators chain with the line energized. For this, a new technology was used for the diagnosis of the state of the insulators of the chains.The equipment used for this measurement is a new instrument called positron.

Porcelain insulators are essential elements in high voltage transmission lines, that They provide efficient electrical insulation that prevents current leakage and guarantees system integrity.Its relevance becomes especially critical in adverse conditions, such as Storms, extreme fluctuations of temperature, pollution and other climatic events.

A specialized linen team of the company was in charge of the measurement work with the equipment Positron.This team measures and records the electric field through a scan that makes it long of the insulators chain and reveals all its conductive defects, allowing a job Line personnel insurance.In addition to providing an early diagnosis of the state of Insulators Without the need to disregard the line, it helps to identify possible problems before convert In critical failures.During the measurement security protocols were followed for guarantee The correct operation of the measurement equipment and obtaining reliable results.

The maintenance of porcelain insulators in high voltage transmission lines is a activity Very important to ensure the reliability and availability of the country’s transmission system.

The National Electricity Company (Ende Corporation), through Ende Transmission, made the change of Equipements primary in the Vinto substation, located in the department of Oruro, to strengthen the transport of energy electric and avoid any type of unexpected cuts in the service.

According to the renewal plan faced by the transmission, the change and improvement of 6 was made 115 kV park current transformers, 2 three -phase switch of 69 kV and 3 park Capacitive line output voltage transformers to the 69 kV mining company (EMV).

The vinto substation is one of the oldest facilities that composes the interconnected system National (SIN), entered operation more than 40 years ago and has been updated and Improvement, to guarantee the reliability, stability and efficiency of the electrical system.The Validity of the operation of this electrical substation is a sample of the correct administration Operational by Ende.

The state electric current currently has one of the more electricity transmission systems robust and efficient of the region and incorporates new technology to expand the transport capacity electric, also dedicates an arduous work to the maintenance of equipment, which has an important Tour of its operation.

UNICOM ENDE / 19-03-2024.- The National Electricity Company (Ende Corporation) faces the construction of the project “Transmission line in 500 kilovolts (KV) Carrasco – the associated gaps and substations”, being The second line of electric transmission in extra high voltage of Bolivia, which to date reports an advance of 77% and will allow strengthen the electricity supply in the departments of Cochabamba and Santa Cruz, in addition to providing the capacity of Electric power transport needed to market, in the future, electricity to the neighboring country from Brazil.

The project is in charge of Ende Transmission and includes the construction of a line of 186.30 kilometers long, From the Carrasco substation (extension), located in the municipality of Entre Ríos in the province Carrasco del Cochabamba Department, until the Las Grechas (new facilities) substation, located at 35 kilometers south of The city, close to the population of Basilio, in the Cordillera province of the department of Santa Cruz. Currently performs the construction of foundations, the assembly of structures and the laying of conductors in the line, as well as All civil works and equipment assembly in Carrasco substations and gaps.

The highlights of this second line in 500 kV is that, all the line designs and Substations associated, were carried out with an engineering of Ende Transmission, as well as in the execution of this work, it is used 100% national cut and labor technology, consolidating the capacity of professionals Bolivians in the field electric.

The line will allow the creation of a large capacity for electricity transport, which will interconnect The eastern and central areas of the National Interconnected System (SIN), strengthening the supply electric and allowing to have the generation surplus at the Las Grechas collector node, for the future export.

Ende will continue working to strengthen the national electrical system.With the construction of the Second line of electric transport in 500 kV, Bolivia consolidates its electrical system as one of the safest and Reliable of the South American region.

ENDE Transmisión, Ende Corporation, use a software called Sigema acronym for maintenance management systems, developed by the transmission, which allows manage the planning, programming and execution of maintenance work of the network of transmission that connect different points of the national territory, reaching the most places High, medium and low voltage lines, thus consolidating one of the most safe and reliable in the region, for the benefit of the Bolivian population.

Thanks to the hard work and performance of technical staff, the software was developed to measure, in basis for the experience of the company staff in the 2012 management. However, it is constant Improvement and update to continue adapting to the constant transmission network.

The year 2023 highlighted two relevant facts.The first was the coordinate update geographical of the transmission lines of all Bolivia, through which the geographical location of each of the structures that make up the transmission lines;this Visualization is done on Google Earth with the coordinates recorded in the database of the software.Having this information available is very helpful to precisely locate the place of events or incidents that can be given and, in this way, act in a timely manner.Another improvement was implementation of the role of the role of shifts, which allows access to the information of the personnel of Turn in each area, in addition to having notifications when registering a change in turn.Of This form, you can contact the personnel assigned to any eventuality that could be carried out.

ENDE Transmisión is a recognized company in the national and international electricity sector, by facing Greater projects with own engineering and cutting -edge technology.

In order to strengthen the integrity of high voltage structures and thus guarantee the security and continuity of the supply of electricity in the eastern system, Ende Transmission did important maintenance work on the La Belgica transmission line – GUARACACHI 230 KV.

During routine technical inspections that were carried out during the months of November and December of The 2023 management, indications of corrosion in the structures were identified, a phenomenon considered normal given the aging of them and the climatic conditions of the environment, taking into account that the Transmission line entered into operation in 1989, and to date it has 34 years of continuous operation.

The maintenance work was carried out with the energized line and essential works of Sanding, cleaning and painting of 30 structures.This process included cleaning by mechanical abrasion and Chemistry, followed by coating with high -performance alipheic polyurethal base paint maritime degree, resistant to pollutants and UV rays to prevent corrosion and ensure durability of structures.Maintenance works not only seek to preserve existing infrastructure, but also guarantee the continuity of the operation on the line, thus contributing to the efficient operation of the national interconnected system (SIN).

The maintenance was completed without incident registration, complying with ISO 12944; Bolivian professionals implemented rigorous security measures, given the importance of the line transmission for the SIN.The height activities that were mostly carried out are highlighted With the energized line, dividing the intervention by sectors into the structure according to its danger. This particular fact consolidates the capacity of workers, since the entire line and The associated substations are operated and maintained with the employment of national labor.

Demonstrating that quality is the only synonym for trust, for 20 years there Transmission, a subsidiary of Ende Corporation, maintains its management systems certified by agencies internationally recognized for quality, environment, safety and health systems Occupational and social responsibility.

In that sense, during the 2023 management the following audits have been carried out:

Audit external to management systems from July 22 to 29: Through it, it has been achieved The renewal of quality management systems (ISO 9001: 2015), Environment (ISO 14001: 2015) and The maintenance of the Safety and Health Management System at work (ISO 45001: 2018).

External audit of social responsibility and verification of the sustainability report of the 29 of November to December 7: Through it, the maintenance of its certification in basis for the IQNET SR 10 standard and the 2022 sustainability report has been verified based on the new GRI standards (Global Reporting Initiative) in its exhaustive option.

As a result of the aforementioned audits, minor observations were identified, which will be treated Through the systematics established in the company, in compliance with the principle of continuous improvement. Ende transmission is a company that works under strict safety and quality standards to comply with the objective of guaranteeing the reliability of the supply of electricity to Bolivia.

UNICOM ENDE 05-01-2024.- The National Electricity Company (Ende Corporation), through Ende Transmission, replaced a high voltage tower that presented damage to its structure, caused by landslides, in a section of the Valle Hermoso electric line – Santiváñez, in the Ushpa Ushpa area of the Cochabamba department, thus guaranteeing an uninterrupted electricity supply.

Recent rains in the Ushpa – Ushpa sector caused the geological instability of a large area of land, causing cracks, local landslides, deformation and inclination of the strata of land, where the high voltage tower was located No. 10. This situation caused Deformations in main profiles and uprights of the structure, causing mechanical instability With a risk of collapse of the same, compromising the operation of the transmission line.

After a planning process, the state electricity made the decision to replace Tower No. 10 of immediate way.Structure assembly works, phase conductors and cables save the new structures and disassembly of the affected structure, were executed in 2 days, with The de -negized line.

To achieve this objective within the planned period, a large number of personnel moved and They used two high capacity cranes for assembly and disassembly of 44 meters of height.The execution of this activity was coordinated with ELFEC, the Alejo Calatayud subalcaldía, the USPHA USPHA and OTB Japan community, preventing possible risks, typical of this type of work.

The tower was substituted without incident registration and the transmission line was successfully replaced, guaranteeing in this way, the reliability of the electrical transmission network and providing tranquility to the population surrounding the structure, which was susceptible to the possible collapse of it and the interruption of the electric service.

The expansion of the national interconnected system (SIN) in our country, has diversified its composition, implementing renewable and non -renewable generation technologies, static compensation equipment and simple and double list of transmission;which increases the complexity of the operation in time real of the power system.This is how Ende Transmission, a subsidiary of Ende Corporation, in management 2023 executed a pilot project to implement a broad area monitor system (WAMS for its acronym in English), with cutting -edge technology that will help the real -time operation of the system of Power, increased the reliability and security of this.

The implemented system is composed of fasorial measurement units, satellite watches, Fasorial data concentrator and communications infrastructure;It also has a wide variety Of applications.As an initial stage, it monitors the stability of tension, permanent stability and transient stability;showing the measures obtained and calculated by different screens, the which provide the operator with the visibility of SIN.

The execution of the pilot project of the broad area monitoring system was successful, checking the contribution made by the system to the real -time operation of SIN;thus satisfying the growing demand of the sector, strengthening the availability of electric power supply for the benefit of families that inhabit the Bolivian territory.

Ende is a recognized company in the national and international electricity sector, by facing projects of Great scope with own engineering and cutting -edge technology, making constant update of Equipment and personnel to guarantee the reliability of the supply of electric power in Bolivia and consolidate as one of the safest and reliable systems in the region.

Within the annual programming and in the process of improving old facilities, there is transmission, Ende Corporation filial, performing the telecontrol system of the substation Beautiful valley.

One of the main objectives was to replace the remote terminal unit (RTU) with 15 years of antiquity;The replacement included telecontrol equipment, transducers, self -supporting boards, change of multipares and others.

Thanks to the hard work and performance of technical staff, the new and modern telecontrol system was in service on November 24, 2023. The implemented RTU is of the Schweitzer Model Axion Sel-2240, modular and with a variety of communication protocols available so that the system of control goes from being conventional to a hybrid control system, where the wiring can be maintained conventional, but also has the possibility of using IEC61850 communication protocols, DNP3 TCP, Modbus TCP, SNMP, Irig-B, HMI, among others.

To optimize the project architecture, analog transducers were replaced by digital, of that way the transfer of information to the SCADA system of analog signals of all the Transmission lines that converge in this substation.

This new and modern telecontrol system allows to meet the growing demand of the sector, thus strengthening the capacity and availability of electric power supply for the benefit of The families that inhabit the Bolivian territory.

Ende transmission is executing the “Bay 115 KV Substation Catavi” project, which will allow enable a new electrical energy retirement node for the distribution agent in the Catavi substation, from which the distributor will install two power transformers with its respective bays of transformation to the 115 kV bar, a work that will benefit the satisfaction of the Increasing demand of that region of the country.

The project includes a 115 kV bay in ring configuration in the Catavi electric substation, located in the municipality of Llallagua in the province Rafael Bustillo of the Department of Potosí, Approximately 96 km south of the city of Oruro and 232 km north of the city of Potosí.Includes The expansion of the 115 kV bar for the connection of two power transformer bays, which will be Built therefore deoruro.

El proyecto se encuentra próximo a su conclusión, se tiene prevista la entrada en operación del proyecto The project is close to its conclusion, the entry into operation of the project is planned By December 19, 2023.