The Keysight RP7953A is a 10 kW regenerative power system delivering bidirectional DC power in a single 3U rack-mountable chassis. Operating from 0 to 950 V and ±20 A, this two-quadrant instrument functions simultaneously as a precision power source and electronic load. The regenerative architecture recovers energy during load operation, returning approximately 90% of power to the 200–208 V 3-phase AC grid at >85% efficiency—dramatically reducing operational costs and cooling requirements.
Designed for high-power battery characterization, power conversion testing, and transient simulation, the RP7953A delivers command processing in ≤1 ms with voltage accuracy of ±0.03% + 120 mV and current accuracy of ±0.1% + 12 mA. Autoranging output expands the voltage/current envelope within rated 10 kW power. Load regulation measures 60 mV typical (voltage) and 9 mA typical (current), with output ripple and noise at 1000 mV peak-to-peak and 200 mV RMS.
Battery emulation capability includes programmable source resistance to 50 Ω for simulating different states of charge and impedance profiles. An integrated arbitrary function generator enables transient testing via step, constant dwell, and list-based waveforms (up to 512 steps). The unit sustains continuous sink operation at 100% rated current indefinitely. Safety integration includes anti-islanding logic to confirm grid presence before regeneration. Input requirement is 11.5 kVA at 0.99 power factor. Weighs 31.8 kg.
Technical Specifications
• DC Output: 0–950 V, 0–±20 A, 10 kW maximum
• AC Input: 200–208 V ±10%, three-phase, 11.5 kVA, 0.99 power factor
• Regeneration Efficiency: >85%; returns ~90% of power to grid
• Voltage Accuracy: ±0.03% + 120 mV
• Current Accuracy: ±0.1% + 12 mA
• Load Regulation: 60 mV (V), 9 mA (I) typical
• Output Ripple/Noise: 1000 mV peak-to-peak, 200 mV RMS
• Command Processing: ≤1 ms
• Battery Emulation Resistance: 0–50 Ω programmable
• Transient Waveforms: Step, constant dwell, lists to 512 steps
• Form Factor: 3U rack mount, 31.8 kg
– Key Features
• Two-quadrant source and sink operation without output interruption
• Battery impedance emulation for capacity and service-life testing
• Autoranging to maximize voltage/current combinations within power envelope
• Continuous 100% current sink capability
• Anti-islanding protection for grid-tied regeneration
– Typical Applications
• Battery pack characterization and cycle testing
• Power converter efficiency measurement
• Transient load profiling
• Regenerative braking simulation
• High-voltage DC system validation
– Compatibility & Integration
The RP7953A integrates with standard test automation via command processing ≤1 ms. Single output configuration supports both source and load modes in one instrument, eliminating multiunit test architectures.
