In March 2020 the city of Zagreb was hit by the largest earthquake in the last 140 years, while a much stronger earthquake (6.3M) hit the nearby town of Petrinja in December 2020. In the aftermath, we all got increasingly aware of the effects of earthquakes, subsequent tremors and vibrations.
HRO Cigré Session, a major industrial event dedicated to energy system management brought together more than 1500 experts. VESKi team presented two papers on the topic of "Diagnostic Methods for Determining Cause of High Vibrations of Hydrogenerator Stator Core" and "Mechanical Impedance in The Diagnostics of End-Winding on the Basis of Continuous Vibration Measurement".
VESKi's CEO Ozren Oreskovic presented paper with case studies on Hydro 2019 conference. The paper "Dynamic Behaviour of Hydro Units in the Rough Load Zone" was written by Ozren Husnjak, Ozren Orešković and Franjo Tonković.
Veski CoDiS-PMU (Portable Monitoring Unit) 16 channel device is again in action! Our goal was to obtain an answer to the question about what should be done during the unit's overhaul.
At HydroVision International 2019 in Portland USA VESKi and our partners from IRIS Power presented two joint papers on the topic of Thermal Expansion Impact on Vibro-Dynamic Properties of Bulb Hydrogenerators and Dynamic Loads in the Rough Load Zone of Hydro Units.
Last week we held VESKi Monitoring Academy training at the largest HPP in Croatia. Training included theoretical and practical training on machine condition monitoring , data interpretation and diagnostics.