DRJB830 Three-Phase Microcomputer Relay Protection Test Set
Main Features
■ The hardware adopts a combination of switching power supply and linear power amplifier, which improves reliability, ensures the accuracy of current and voltage and waveform smoothness, and greatly reduces weight.
■ Built-in industrial computer, 8.4-inch true color LCD display, running Windows XP operating system; and embedded GPS receiver to achieve dual-side time synchronization testing.
■ If the main power supply is mistakenly connected to 380VAC, the device will automatically protect itself and sound an alarm.
■ Rich software testing functions: manual control, program control, synchronization, differential, harmonic, time characteristics, inverse time characteristics, state sequence, complex differential, whole group test, impedance characteristics, line protection, power oscillation, fault reproduction, etc.
Current Source
■ Three-phase AC current: 3× (0～30) A DC: 3× (0～30) A
■ Accuracy: 0.1% Resolution: 1mA Power: 450VA/phase
Voltage Source
■ Four-phase AC voltage: 4× (0～125) V One DC: 1× (0～300) V
■ Accuracy: 0.1% Resolution: 1mV
■ Power: ≥50VA/phase DC >100W
Microcomputer Relay Protection Test Set: Output Frequency
■ Range: 0～1000Hz Error: <0.005Hz Resolution: 1mHz
■ Can superimpose 2 to 20 harmonics of arbitrary amplitude and DC
Phase Range: ±360° Error: <0.2° Resolution: 0.1°
Auxiliary DC 110/220VDC switchable Power: >100W
Switching Quantity Eight pairs of inputs, four pairs of outputs Contact capacity: 250VDC/AC 2A
Host Power Supply AC220V±10% 40Hz～60Hz 10A (max)
Overall Weight <13kg
This device uses a high-performance industrial computer as the control computer, configured with 1G memory and 8G hard disk, pre-installed with Windows XP operating system, panel with 8.4" 800*600 resolution TFT true color LCD display, resistive touch screen, can be used directly without external keyboard and mouse, the panel is equipped with four USB interfaces for convenient data storage, data communication and software upgrade.
