en.Wedoany.com Reported - ISA Energia Brasil has applied automatic connector technology for the first time in Brazil's transmission system, used to connect a 138 kV line between the cities of Euclides da Cunha and São João da Boa Vista in the interior of São Paulo state. This technology reduces the time required for cable connection from approximately 40 minutes to just 5 minutes, a reduction of up to 87.5%.
An automatic connector is a device used to connect aluminum, copper, or steel conductors in transmission lines, suitable for both new project construction and maintenance operations. This solution brings benefits to grid operations by reducing intervention time, enhancing on-site team safety, and decreasing system unavailability, thereby improving the reliability and robustness of the power system.
Unlike traditional connectors, which achieve cable connection through mechanical compression or pre-forming, requiring specific tools and taking longer, automatic connectors are simpler and faster to install. The conductor is directly inserted into the device, and the internal mechanism automatically locks and completes the connection without the need for molds or specialized equipment, with the entire process taking only a few minutes. ISA states that this convenience aids maintenance work and enables faster intervention in emergency situations, reducing operation time and improving team efficiency. In addition to reducing intervention time, this technology offers the operational advantage of lower resistance at the connection point, preventing overheating and protecting the integrity of the transmission system.
To promote this technology, ISA Energia's technical team has undergone specialized training and participated in technical certification tests with the manufacturer. Currently, professionals are capable of using the equipment independently, and the company's initial installations in various regions will receive on-site technical support. The technology is manufactured by Brazil's MacLean Power Systems, with technology originating from its U.S. parent company. It is expected that this technology will gradually be evaluated for application in the company's other transmission lines.
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