• Supreme Instrument Laboratories

Meter Test Bench, Three-Phase

Supreme Instrument Laboratories offers a three-phase Meter Test Bench. This is suitable for calibration and testing of AC ammeters, voltmeters, single phase energy meters, watt meters, power factor meters, three phase two wire and three phase four wire energy meters trivector meters, maximum demand indicators, of active and reactive systems, three phase 3-wire and 4-wire watt meters, VAR meters, power factor meters, etc. Specifications: input – 400/440 V AC, 3-phase, 50 Hz; output test voltage – 3 x 110/64 V, 3 x 440/254 V; test voltage regulation – 0-120 Percentage of the selected range of test voltage; creep test voltage – 75 Percentage, 80 Percentage, 100 Percentage, 110 Percentage and 120 Percentage of selected voltage; current range – 0.5-1-2.5-5-10-25-50 and 100 A; current regulation – 0 to 120 Percentage of range selected; starting current – 0.5 Percentage, 0.75 Percentage, 1 Percentage and 1.5 Percentage of the range selected; phase shift – built-in phase shifting transformer static type, phase angle variation 90 Degree lag unity 90 Degree lead and in between values continuously variable; output voltage burden – per phase as per requirements; output capacity – as per requirements; instrument transformers – 3 units with sufficient capacity; potential transformer – 3 units accuracy class 0.5; and current transformer – 3 units of accuracy class 0.2.