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Industrial Substations


Industrial substations are similar to utility substations, but the profile of the operators is different, as is the organization of the database and parameter screens. In the concessionaire, energy is the object of production and supply. In industry, energy is an element in the production of another product (cellulose, fertilizers, food, etc.). Thus, a concessionaire operator has a different profile when compared to an industry operator, although both systems are similar from the point of view of the controlled process, requiring uses of HMIs in different ways.

Spin has already automated several industrial substations. The largest belongs to Lwarcel Celulose. In it SCADA controls several substations, communication with Schweitzer relays, CLPs from Allen Bradley and four more manufacturers of different meters. This project was implemented in 2009 and its highlights are the demand control and the development of the module load limitation.

The Mac Industrial Substation project aims to reduce the cost of automation of industrial substations by reducing the parameter time, factory testing and commissioning.

The solution aims to meet three basic elements of an enterprise: quality, price and time.

It has a standardized architecture, using line, transformer and generator/feeder relays. The standard solution was configured in SCADA and had its relays parameterized to the destination functions with predetermined addresses. Besides that a full test of the system was made in the laboratory.

This solution was saved with the configuration files of the relays, and when the client wants to parameterize an application based on default, only changing the number of lines, feeders and generators, there is a mechanical procedure that generates the final application in about an hour . The relays are parameterized using the pre-staged files, changing only the address one of the IED.

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Lwarcel is a pulp mill, located in Lençóis Paulistas-SP, which generates more than 700 tons/day of pulp. This plant is powered by CPFL, and also has two own generators that supply it with energy. Spin, in partnership with Schweitzer, retrofitted the plant’s entire power system, as well as implementing load-cutting and demand-control functionality.

Further details of the system can be seen in the operating manual, available for download.

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