The Keysight RP7951A is a 5 kW bidirectional regenerative DC power system engineered for demanding test environments in research, development, and manufacturing. Operating in two-quadrant mode, it functions simultaneously as a precision power source and electronic load, enabling direct transitions between sourcing and sinking current without transient disruption. The autoranging output characteristic expands the voltage and current operating space beyond traditional rectangular-output supplies. Sub-millisecond command processing and fast output response support dynamic testing of energy storage systems, power converters, and semiconductor devices across hybrid-electric and electric vehicle platforms.
Technical Specifications
• Output Voltage: 0–500 V
• Output Current: ±20 A (source and sink)
• Maximum Power: 5 kW
• Input: 200/208 VAC ±10%, power factor 0.99
• Regenerative Efficiency: Up to 90% energy return to grid
• Command Processing: ≤1 ms
• Single Output, Two-Quadrant Operation
• Dimensions: 763 × 427 × 132.6 mm (3U rack)
• Weight: 27.3 kg
– Key Features
• Battery emulation with programmable resistance to 50 Ω and charge-state simulation
• Transient generation via step functions and arbitrary waveforms (up to 65,535 points)
• Continuous current sinking at 100% rated capacity indefinitely
• Parallel configuration capability up to 200 kW aggregate power
• Simultaneous voltage and current measurement in averaged or digitized modes
• LAN (LXI Core), USB, and GPIB interfaces
– Typical Applications
• High-voltage, high-power battery emulation
• Converter efficiency and transient response characterization
• Power device validation under dynamic load conditions
• EV/HEV powertrain component testing
• Energy regeneration analysis and recovery system validation
– Compatibility & Integration
Supported by Keysight BenchVue Basic software. Integrates into HEV/EV power converter test solutions.
