Keysight (Agilent) N8931A Autoranging System DC Power Supply, 80 V

The Keysight N8931A Autoranging System DC Power Supply is a high-power, programmable DC source engineered for automated test equipment, research, and manufacturing applications. This single-output unit delivers 0–80 V and 0–510 A across a maximum 15 kW power envelope, with autoranging capability that eliminates the need for multiple fixed-ratio supplies. The autoranging architecture dynamically adjusts voltage and current combinations within rated power, adapting to load transients and simplifying test system design. At 3U rack height, the N8931A achieves exceptional power density—15 kW in a compact form factor—reducing footprint and operational costs.

– Technical Specifications

• Output Rating: 0–80 V, 0–510 A, 15,000 W (15 kW) single output
• Programming Accuracy: 0.1% of full-scale (voltage); 0.2% of full-scale (current)
• Measurement Accuracy: ≤80 mV (voltage)
• Output Ripple & Noise: 200 mV p-p (CV)
• Command Response Time: <25 ms
• Input: 187–240 VAC, 3-phase (208 VAC nominal)
• Rack Configuration: 3U mount (5.25 inches)

– Key Features

• Autoranging output with flexible voltage/current combinations at full power
• Over-voltage, over-current, and over-temperature protection
• Parallel operation capability—stack up to six units for 100 kW total output
• LXI Core (LAN), USB, GPIB, and analog interfaces for remote control

– Typical Applications

• High-power ATE systems requiring variable load profiles
• Battery charging and thermal cycling test benches
• Motor and power electronics validation
• Parallel-connected configurations for 100 kW distributed power delivery

– Compatibility & Integration

Standard interfaces include LAN (LXI Core), USB, GPIB, and analog control. Remote configuration requires Keysight IO Libraries Suite. Units support parallel master/slave operation for scaled power systems.