Diagnostic testing involves comparative measurements of the properties of electrical power equipment and machinery to assess their operational integrity. By leveraging expert knowledge in high-voltage equipment diagnostics, we significantly reduce the risk of failures and enhance the availability of electrical power systems. Our institute is equipped with four mobile testing units specifically designed for diagnostic testing of electrical power equipment. Our highly trained technicians use calibrated measurement tools to evaluate the condition of power and instrument transformers, rotating machines, high-voltage circuit breakers, and GIS installations.