NH Research 9430-12 Regenerative AC Load

Overview

The NH Research 9430-12 is a four-quadrant regenerative AC load capable of simulating almost any linear or non-linear load. With selectable phase inputs and outputs combined with a high-resolution waveform digitizing measurement system, the 9430-12 operates in sink mode to return power to the facility mains rather than dissipating it as heat. This advanced load is ideal for testing UPS systems, AC sources, inverters, rectifiers, switches, circuit breakers, and fuses.

Key Features

• 12 kW true power capacity (31.5 kVA apparent power)
• Voltage range: 10 to 350 VAC, 10 to 400 VDC
• Frequency range: 30 to 880 Hz
• Single, split, or three-phase programmable operation
• Four-quadrant operation with bidirectional current capability
• HiVAR design: 2.6× reactive power per real power (watts)
• Power factor range: -1 to +1 (full bidirectional reactive power)
• Crest factor range: 1.414 to 4.000
• High-resolution waveform digitizer with triggerable measurement
• 9-inch touch-panel interface with isolated digital inputs/outputs
• Regenerative sink: returns >90% of power to facility mains
• Built-in safety watchdog and SW limits for automated testing

Emulation Modes

• Constant Current (CC) — linear and non-linear load testing
• Constant Resistance (CR) — unity power factor resistive loads
• Constant Power (CP) — switching power supply simulation
• Constant Apparent Power (CS) — VA vector with real and reactive components
• Constant Series RL (CRL) — motor-like resistive-inductive loads
• User-definable current waveforms for custom load profiles

Applications

• UPS system testing and validation
• AC source and inverter testing
• Rectifier, switch, circuit breaker, and fuse testing
• Linear and non-linear load simulation