NH Research 525 Powertest

The NH Research 525 Powertest is a modular power testing system for evaluating power conversion products across research, production, and quality assurance environments. It combines AC and DC source capabilities with electronic load and precision power measurement in a single platform. Individual channels operate as 8 kW sources and 12 kW sinks, functioning as programmable power supplies, loads, or battery emulators. The system scales from 12 kW to 252 kW using bi-directional DC loads, with channels that can be paralleled for higher power demands.

– Technical Specifications

• Power Output/Load Capacity: 8 kW source, 12 kW sink per channel; expandable to 252 kW
• Voltage Range: 40 V, 120 V, and 600 V options; dual ranges of 600 V and 1200 V available in select configurations
• Maximum Current: Up to 12,600 A in certain configurations
• Regulation Modes: Constant Voltage (CV), Constant Current (CC), Constant Power (CP)
• UUT Output DC Voltage Measurement: 0–20 V, 0–200 V with 16-bit resolution
• UUT Input AC RMS Voltage Measurement: Up to 280 V with 16-bit resolution
• Digital Measurement System: Multiple input channels with waveform digitizers; 100 MHz multiplexer in select models
• Transition Times: Microsecond-level voltage, current, and mode transitions
• Recovery Efficiency: Up to 87% of discharge power returned to AC mains

– Key Features

• Resistance emulation for wire harness and protection circuit simulation
• Battery emulation with programmable series resistance and low capacitance
• Custom waveform and profile generation
• Touch-panel interface with graphic meters, macro support, and no-code charge/discharge profile development
• Integrated charting and oscilloscope-style display capabilities
• Advanced test automation via NHR Enerchron® Test Executive software

– Typical Applications

• Power converter evaluation and validation
• Battery charging and discharging characterization
• DC power supply testing and load simulation
• Production-line functional and safety testing
• Quality assurance and burn-in programs

– Compatibility & Integration

Bi-directional DC load architecture supports parallel channel operation. Touch-panel interface enables Macro development and execution for custom test sequences. NHR Enerchron® software provides enterprise-level test automation and data management.