NH Research 9430-24 Regenerative AC Load

Overview

The NH Research 9430-24 is a four-quadrant regenerative AC load offering 24 kW true power capacity with advanced HiVAR technology for high reactive power applications. Featuring selectable phase inputs and outputs with high-resolution waveform digitization, the 9430-24 can accurately simulate any linear or non-linear load and return >90% of power to the facility mains. This high-power regenerative load is essential for comprehensive testing of UPS systems, AC sources, inverters, and power distribution equipment.

Key Features

• 24 kW true power capacity (63 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 full bidirectional current capability
• HiVAR design: 2.6× reactive power per real power for high-quality reactive testing
• Power factor range: -1 to +1 with unlimited phase angles
• Crest factor range: 1.414 to 4.000 for realistic transient simulation
• 100% Silicon Carbide (SiC) based power stage for superior performance
• High-resolution waveform digitizer with triggerable measurements
• 9-inch touch-panel interface with isolated digital I/O
• Regenerative sink: returns >90% of power to facility for energy savings

Emulation Modes

• Constant Current (CC) — precise linear and non-linear load emulation
• Constant Resistance (CR) — pure resistive loads at unity power factor
• Constant Power (CP) — switching power supply and converter simulation
• Constant Apparent Power (CS) — vector VA loads with reactive components
• Constant Series RL (CRL) — inductive-resistive loads mimicking motors
• User-definable current waveforms for custom equipment profiles

Applications

• High-power UPS testing and certification
• AC source and inverter validation
• Power electronics equipment testing (rectifiers, switches, breakers)
• Realistic load simulation for power distribution testing
• Transient and reactive power testing