AD904D Three Phase High Current Tester

The AD904D Three Phase High Current Tester is a professional three-phase power testing instrument engineered for industrial power system commissioning, three-phase current simulation, and protective relay performance validation. It outputs balanced and stable three-phase high current to simulate grid short-circuit, overload and unbalanced load conditions, enabling comprehensive functional calibration of power protection equipment. This versatile testing solution supports systematic andAffordable Relay Protection for substation, power plant and industrial power distribution systems. Equipped with advanced digital three-phase synchronous control technology, this tester delivers precise current adjustment, excellent phase balance and strong anti-interference performance in complex field environments. It works in perfect tandem with a High Quality Relay Tester to complete full-scope testing of three-phase relay protection logic, tripping characteristics and linkage performance. As a powe…