Hitachi Energy delivered a comprehensive system for the monitoring of switches, breakers and transformers of substations to the water power plant Itaipu Binacional, the second largest hydroelectric plant in the world. The power plant is located in South America on the border between Brazil and Paraguay and is very important for the electricity demand of both countries.
For the monitoring of substations Itaipu needed a comprehensive system which should be able to handle different protocols. As a must, the communication between the field and the control center is to be handled via the standard protocol IEC 61850. Furthermore, an integrated human machine interface (HMI) is needed for diagnostics and prognostics. Besides a competitive price for the complete system, all solutions have to be fully certified.
As a solution Hitachi Energy provided an integrated monitoring system for the breakers, disconnectors and power transformers. The scope included 126 pieces of the compact and flexible 560CIG10 of RTU540 product line, PLC devices with a high process data speed and, as a supervising system with HMI, MicroSCADA pro.
The customer appreciated the solution by Hitachi Energy since all specifications were met. Additionally, the compactness of the RTU540 allowed the set-up in each section on the field together with switches, breakers and transformers. Besides the reasonable price, the RTU 560CIG10 fulfilled all requirements for the application as IEC 61850 server, underlining its interoperability with third-party devices. Within this project this advanced protocol converter function refers to IEC 61850, IEC 60870-5-104, Modbus and DNP3.0.
The water power plant Itaipu located on the Paraná river has an installed capacity of 14000 MW. The storage lake has a volume of up to 29 billion m3 with a surface of 1350 km2, which is more than twice the size of the Bodensee in Europe. The output of the water plant covers 17% of the electricity demand of Brazil and 72% of the demand of Paraguay. Since Paraguay does not require all the electric power, it exports parts of it to Brazil and offers free power to foreign investors. In 2012 the complete Itaipu complex produced enough power to meet all of Paraguay‘s power needs for nine years, or the entire planet for two days.