Fonte: ANEEL
CLIC Energia publishes the twenty-sixth of 30 projects selected for the 4th Edition of R&D Magazine, launched 8/17/2011, during the VI Congress on Technological Innovation in Electrical Energy (CITENEL) and the II Energy Efficiency Seminar in the Electric Sector (SEENEL), held in Fortaleza (CE).The objective is to show society the results achieved with R&D projects.The onsite publication accompanies the order used in the magazine.
The twenty-sixth article, presented by Companhia Energética do Maranhão (Cemar), releases a study about a distribution transformer with an integrated energy meter.Aimed at reducing fraud, the device, created with the Technology Institute for Development (Latec), permits the remote recording of monthly consumption, directly in the transformer.Thus, the entire charge fed by the transformer, including eventual fraud, can be monitored in real time using Bluetooth technology and, alternatively, by serial communication by radio with a reach of more than 15 meters.The prototype was installed kin the city of São José do Ribamar, near São Luiz (MA), and it was able to transmit data on interruption records, communication failures, internal temperature of the metal box, phase disequilibrium, secondary voltage, total consumption and daily average from the transformation post.Equipment performance encouraged Cemar to request its patent.
The articles can be consulted in their entirety here (R&D Magazine 4th Edition).(BT/PG)
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Meter integrated in transformer helps reduce commercial losses of energy.
To make combating commercial losses of energy more efficient, Companhia Energética do Maranhão (CEMAR) e do Technology Institute for Development (Lactec) researchers built a distribution transformer with an integrated energy meter.The equipment aims at reducing fraud through the remote measuring of monthly consumption, directly in the transformer.This makes it possible to register real time occurrences and to evaluate daily charge curves, operation voltage and consumption in the transformer.In the prototype, the digital meter and the electronic circuits are installed in a metal box attached to the transformer at the top of the post.This makes fraud in the grid more difficult.Monthly reading of total consumption from the transformation post is done remotely, by short distance communication, using a smartphone broadly used by the utility for recording monthly readings of consumer units.Thus, the entire charge fed by the distribution transformer, including eventual fraud, can be monitored in real time by the new equipment.The remote transmission of data accumulated in the transformation post is done using Bluetooth technology and, alternatively, serial communication by radio, with a reach greater than 15 meters.Researchers installed the transformer prototype with the integrated meter in the city of São José do Ribamar, metropolitan region of São Luiz, capital of Maranhão.Since installation, the reading has been done remotely and data stored in a netbook, which has an application for evaluating the recording of interruptions, communication failures, internal temperature of the metal box, phase disequilibrium, secondary voltage, total consumption and daily average for the transformation post, among others.In the future, the data can be used in integrated smart-grid networks.Equipment performance motivated the request for filing for a patent for the new equipment. Technical data sheet |
