The RPT-004 is a six-phase microcomputer protection relay tester designed for smart grid applications. It offers 6-channel AC current (0-30A) and 6-channel AC voltage (0-130V) with high precision, covering a 0-1050Hz frequency range and ±0.05° phase accuracy. Supporting COMTRADE fault replay and multi-vendor protection device testing (e.g., ABB, Siemens), it is ideal for substation commissioning and relay protection calibration.
