Research points to innovative practices and systems that can benefit the transmission of energy from renewable sources
State Grid Brazil Holding (SGBH) will be present at the 27th National Seminar on Electric Power Production and Transmission (SNPTEE), which will be held until November 29 in Brasília (DF), with the presentation of six studies and research projects developed with the participation of its teams of collaborators. Application of dry reactors, protection and disasters involving reactors, Ultra-High Voltage Systems and Substation Monitoring Robots are the focus of the research projects developed by technicians from the group's concessionaire companies.
The paper “State Grid Innovations: 500 kV dry reactor substations” will be presented by engineers Pedro Marcondes and Felippe Benarroz, from the Engineering Division of SGBH. The application of this equipment in 500 kV substations is considered an innovation in the sector. The technology, which is unprecedented in the world for 500 kV systems, uses a dry shunt reactor (without oil, which is the most common) with an air core at 500 kV, and was implemented by SGBH at the Silvânia Substation, in the state of Goiás.
In a demonstration of innovative practices carried out by SGBH in Ultra High Voltage (UAT) systems, the O&M manager of Xingu-Rio Transmissora de Energia (XRTE), Fabiano Faria, presents the work “First maintenance on an energized line in 800 kV Direct Current in Brazil” to the SNPTTE audience:
“In our work, we will show the first maintenance activities performed on an energized 800kV DC transmission line (“live line”) in Brazil by the Xingu Rio Transmissora de Energia team. We will also show that the studies carried out by our R&D team in conjunction with CEPEL were essential for the development of the applied techniques,” explains Fabiano.
Still on UAT systems, SGBH participates in the presentation of the study “Insertion of an Ultra High Voltage Transmission System in 1000 kV AC in Brazil”, a project developed by the SGBH Research & Development Department and researcher José Antonio Cardoso, from the Electric Energy Research Center (CEPEL).
The use of reactors in substations was also the subject of other research carried out by teams from the concessionaires XRTE and Teles Pires Transmissora de Energia, which are part of State Grid Brazil Holding. Engineer Ricardo Dutra, Protection specialist at the O&M Department of SGBH, and Marcos Pioltine, from Nari Brazil Holding (which is part of the State Grid group), comment on the considerations of the study “Reactor Protection Application Techniques – Technical Report GE-833”, co-authored with Felipe Lotte de Sá Magalhães, from XRTE, and Rafael Fernandes, from Argo Transmissão de Energia, members of the study group Protection, Measurement, Control and Automation in Power Systems of SNPTEE.
Two other works exhibited at the event are: “Damages in 500 kV Line Reactors and Criteria adopted by TPT for Defining 50 kV RIP Bushings”, developed by Jhony Duque, Francisco Höpker, Vinicius Damasceno and Tadeu Santos, from Teles Pires Transmissora (TPT, part of the SGBH group); and “Substation Monitoring Robot: a Successful Case of Management of ANEEL Cooperative R&D Projects”, developed, among others, by Francisco Höpker (TPT), João Batista (PTE) and Jorge Bauer, vice president of SGBH.
With an estimated 2,500 participants, including professionals from the electrical sector, representatives from engineering and consulting companies, research centers, universities, equipment manufacturers, dealers, and industry bodies and agents, SNPTEE is considered the largest seminar in Latin America and the 2nd largest in the world. State Grid Brazil Holding is one of the event's sponsors.
