Challenge

• Construction of a prototype capable of monitoring several transformers simultaneously using a single spectrometer, through the spatial optical time-domain multiplexing (TDM) technique
• Development of a prototype capable of monitoring multiple types of gases (7 + unit): hydrogen, acetylene, carbon monoxide, ethylene, ethane, methane, carbon dioxide, oxygen
• Study to verify the benefits of allocating a spectrometer away from the chamber to extract the gas phase – the most convenient, safe and free from electromagnetic interference

Methodology

• Use of photoacoustic spectroscopy as a method of measuring the content of dissolved gases in transformer insulating oil
• Monitoring transmission of light through links to special optical fibers by focusing systems
• Human-machine interface (HMI) for processing and data

Value: R$2,658,694.69
Executed by: USP
Duration: 22 months