Haefely ACS Test System 25-100kV, 20-100kVA. Manufacturer, Labratory, University, High Voltage Services
Haefely FRA 5311 Sweep Frequency Response Analyser. Smallest and lightest system for transformer and rotating machine diagnostics
Haefely IDAS 2823-REF (TD/Power Factor) Highest precision Tan Delta and Power Factor measuring instrument