Instrument Transformers & Sensors Instrument Transformers & Sensors ABB manufactures medium voltage instrument transformers according to ANSI, IEC, GOST, GB, BS, and DIN standards. ANSI Instrument Transformers for Indoor ApplicationsANSI instrument transformers for indoor applications are available in voltage classes ranging from 0.6 kV to 35 kV. ANSI Instrument Transformers for Outdoor ApplicationsANSI instrument transformers for outdoor applications are available in voltage classes ranging from 0.6 kV to 34.5 kV Medium Voltage Indoor SensorsCurrent and voltage measurements for the protection and monitoring of low and medium voltage power systems Medium Voltage Outdoor SensorsCurrent and voltage measurements from 15 kV to 34.5 kV for the protection and monitoring of medium voltage power systems Passive Voltage Indicators VisiVolt Passive Voltage IndicatorsBusbar-mounted indicator of voltage presence developed for use in outdoor and indoor systems, 3-36 kV Publications BrochuresCase StudiesCatalogs and Buyers GuidesData SheetsEnvironmental Product Declaration (EPD)Installation and InstructionPresentations
