Temperature Monitoring of MV Switchgear Cabinet by Non-Intrusive Methods

The paper aims to presents a review about the wireless monitoring methods used to identify the thermal stresses of electrical equipment within Medium Voltage (MV) switchgear cabinet. There are presented several advantages and disadvantages of the current non-intrusive methods of the electrical equipment temperature monitoring. In the final part of the paper there are presented the results obtained from a laboratory experiment, which aimed to highlight the disadvantages of the sound acoustic waves (SAW) monitoring of a busbar. Also, in the case study it intend to present in what matter the SAW monitoring method is appropriate for MV Switchgear Cabinet.