A device has been created at Novosibirsk State Technical University (NSTU) that protects substation equipment from high-frequency impulse overvoltages. According to Valentin Loman, Associate Professor of the Department of Labor Safety at NSTU, this innovation makes it possible to model pulses of various parameters and significantly extends the service life of expensive equipment.
According to him, the danger of high-frequency impulse overvoltages lies in the fact that the insulation of transformer and generator windings is very sensitive to them. The use of the new device helps to suppress dangerous impulses, which reduces the risk of emergency situations.
According to the university's press service, industrial samples of frequency-dependent devices (FDD) have already been manufactured, the characteristics of which have been confirmed by high-voltage impulse measurements.
In addition to substations, the innovation is also relevant for renewable energy sources, such as wind power plants, which are located in difficult and remote conditions.
Currently, the university is cooperating with AO "Rosseti Tyumen" to organize production, and is also preparing devices for certification to confirm their reliability and safety.