The HVA-2000 is a high voltage digital ammeter designed for taking True RMS AC current measurements up to 2000 A, 25-500 Hz. The HVA can be used on system voltages up to 500 kV. Equipped with the capability of taking spot-load studies at transformers or any mid-span location, as well as phase balance studies on primary or secondary lines, all within accuracy of 1%*.