UPS line Project from 10 up to 300Kva for Indelsul Indústrias Eletrônicas do Sul S/A (SAFT) - 1984 Project - The Photo below is a 1988 model.
125 Kva and 75 Kva UPS System designed with thyristors in 1984 . Is still working today.
This project is from 1984 and was made for Indelsul Indústrias Eletrônicas do Sul S / A - SAFT . This line of UPS, consisted of capacities ranged from 10KVA up to 300KVA. Were sold over 200 systems. Among the customers, figured companies like, Banco da Amazônia, Companhia Riograndense de Telecomunicações - CRT, EMBRATEL, TELEPAR, PETROBRÁS The first picture below is a UPS (UPS) of this line with the power of 125Kva. was sold and installed in 1987 for Centrais Elétricas de Furnas.still today (2012) is fully operational. in the second picture is a 75 kVA UPS sold to the Banco da Amazonia in 1985 from more than 50 units of different powers for different locations.
The highest individual of this line was sold for Companhia Riograndense de Telecomunicações - CRT in 1986 with 300Kva and 12 power Modules
Its technology was with Thyristors in a modular phasor topology. The módules combined several square waves with amplitude lagged appropriate, in order to cancel the harmonics. This line could operate using 4 up to 20 modules with reduced phase shifts from 9 up to 45 degrees, depending on the number of modules. It was extremely robust and reliable. It was a significant upgrade from the previous project, having many refinements as the structures of the rectifier topologies adopted and the new cooling system of power semiconductors now being distributed modular drawer. The party gained control of a new clock r for marking phases displacement of the power modules, that was originally made with shift registers. Enhancements were added in order to reduce costs, but without losing its great reliability.
