Profile: Instrument Transformers Ltd. is a provider of small & medium enterprise switchgear and panel builders for busbar fabrication equipment. Our product line includes transformers & relay testing, and busbar fabrication equipment. Our measuring instruments such as ammeters, voltmeters, and kilowatt-hour meters are used to isolate the instruments from the power circuits, and to standardize the instruments, usually at 5 amps or 1 amp.