The Keysight N8957A is a 15 kW autoranging system DC power supply engineered for demanding automated test equipment applications. This single-output unit delivers 1500 V maximum voltage and 30 A maximum current through intelligent autoranging architecture that enables a wide range of voltage and current combinations at full power—allowing a single unit to function as multiple power supplies with different rating envelopes.
Technical Specifications
• Output Rating: 15000 W, 1500 V, 30 A
• AC Input: 400 VAC (360–440 VAC operating range)
• Power Factor: >0.99
• Voltage Measurement Accuracy: ≈0.1%
• Current Measurement Accuracy: ≈0.2%
• Rack Mount: 3U (483 × 133 × 610 mm), 35.2 kg weight
• Operating Temperature: 0–45 °C
• Operating Humidity: 80% maximum
• Operating Altitude: 2000 m maximum
– Key Features
• Autoranging topology automatically adjusts voltage and current to maintain full power delivery across a dynamic load envelope, eliminating the constraints of traditional rectangular output supplies.
• Over-voltage, over-current, and over-temperature protection.
• LAN (LXI Core), USB, GPIB, and analog control interfaces with built-in web server for remote access via standard browser.
• Parallel-capable: up to six N8957A units can be installed in a prewired rack system to deliver 90 kW, or combined in various configurations to exceed 100 kW total output power.
• Master/slave control architecture for parallel operation allows programming multiple units as a single power supply without individual unit configuration.
– Typical Applications
High-power DC testing of power semiconductors, battery charging systems, electromechanical actuators, and multi-output subsystem validation in automated production environments.
– Compatibility & Integration
N8900 Series member. Accepts 400 VAC three-phase input. Compatible with standard LXI instrument control frameworks and legacy GPIB-based test systems.
