The Keysight RP7951A is a 5 kW, two-quadrant regenerative power system that sources and sinks DC power with ±20 A bidirectional capability at up to 500 V. Designed for high-voltage, high-power testing applications, this 3U compact unit regenerates up to 90% of consumed energy back to the grid, minimizing operational costs. Fast output speed with sub-millisecond command processing enables dynamic transient simulation and battery emulation across demanding test scenarios.
Technical Specifications
Electrical Output
• Maximum voltage: 500 V
• Maximum current (source and sink): ±20 A
• Maximum power: 5 kW
• Output ripple & noise: 500 mV peak-to-peak (CV), 100 mV rms (CV)
• Load regulation: 30 mV (voltage), 9 mA (current)
• Autoranging with 0.99 power factor at nominal input and rated power
Input
• AC input voltage: 200/208 VAC, ±10% tolerance
• Three-phase supply
Performance
• Regenerative efficiency: Up to 90% energy recovery to grid
• Command processing: Sub-millisecond response time
• Battery emulation with programmable resistance up to 50 Ω
• Transient generation: single steps, up to 512-step sequences, and arbitrary waveforms (65,535 data points maximum)
Measurement & Interface
• Simultaneous voltage and current measurement in averaged and digitized modes
• Built-in calculations: power, peak power, amp-hour, watt-hour
• LAN (LXI Core), USB, GPIB connectivity plus web-based remote control
Physical
• Dimensions: 763 × 427 × 132.6 mm (3U rack height)
• Weight: 27.3 kg
• Operating temperature: 0 to 40 °C
– Key Features
• Two-quadrant operation sources and sinks power within single output channel
• Fast transient response for dynamic load simulation
• Battery emulation mode with user-programmable internal resistance
• Flexible waveform generation: single steps, sequenced lists, or complex arbitrary waveforms
– Typical Applications
• HEV/EV power converter testing
• Energy storage system validation
• DC power conversion device characterization
• High-voltage, high-power battery simulation
– Compatibility & Integration
Parallel connection supported up to 15 units (identical voltage rating) for system power scaling to 200 kW. Integrated safety features protect device and load.
