Single-Phase Relay Test Systems (SMRT1, SMRT 1D & SMRT 1B)

About Single-Phase Relay Test Systems (SMRT1, SMRT 1D & SMRT 1B)

The SMRT1, SMRT 1D, and SMRT 1B are advanced single-phase relay test systems designed for precise secondary injection testing of protective relays in substations and industrial power systems. These compact and lightweight units provide highly accurate current and voltage outputs for testing overcurrent, earth fault, voltage, frequency, and directional relays. With modern control interfaces and compatibility with relay test software, SMRT series testers enable fast, automated, and repeatable testing. Their portable design makes them ideal for commissioning, routine maintenance, and troubleshooting of protection schemes by utilities, EPC contractors, and service engineers.