Megger's New SMRT46/D Multi-phase Relay Test System expands your testing abilities by adding a 4th voltage channel, giving you another game-changing tool to help you get your job done faster and more efficiently.
A fourth voltage channel can provide a synchronizing reference voltage, or serve as a battery simulator. With the voltage channels converted to currents, a three channel unit can provide 6 currents for testing three phase current differential relays, including harmonic restraint transformer differential relays