RT300 Plus – Three-Phase Relay Test Kit & Calibration Source
The RT300 Plus is a versatile relay test kit and calibration source, capable of operating as three voltage and three current sources, six voltage sources, or six current sources—each with independent amplitude and phase control. Ideal for testing protection relays, synchronization relays, and electrical instruments, it offers programmable angles, frequencies (45–65 Hz), and power factors with ±0.2% accuracy. Built-in features include a programmable DC power supply (10–200V, 1A), relay timing capture, contactor close time measurement, and energy meter calibration modes. With low-distortion digitally synthesized waveforms, intuitive LCD interface, and PC connectivity, the RT300 Plus is an indispensable tool for utility, industrial, and laboratory environments.