The NH Research 4600-6kW is a programmable AC electronic load bank engineered for validation and stress testing of AC power sources, inverters, UPS systems, circuit protection devices, and associated power distribution components. This 6 kW unit emulates real-world load conditions through multiple operating modes, enabling developers to verify source reliability and transient response across diverse field scenarios.
Technical Specifications
Power and Electrical
• Power Rating: 6 kW
• Maximum Current: 60 A
• Voltage Range: 50–350 V RMS (L-N)
• Frequency Range: 45–440 Hz
• Configurations: Single-phase and 3-phase available
Measurement Capabilities
The unit integrates 12 high-accuracy internal measurements: frequency, voltage, peak voltage, current, peak current, crest factor, apparent power, true power, peak power, reactive power, power factor, and resistance. This internal measurement suite eliminates dependency on external instrumentation.
– Key Features
Operating Modes
Multiple load emulation modes address distinct testing requirements: Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP), Short Circuit (SC), Unity Power Factor (UPF), and Complex Non-Linear Waveform (CNL) mode.
Programmable Waveforms
User-defined waveform creation via graphical editor supports symmetrical and asymmetrical custom waveforms with smoothing and auto-check compatibility verification. This capability enables precise transient condition replication.
Macro and Transient Control
100-step macro functionality permits multi-mode loading changes on a per-cycle basis, with manual or event-triggered execution (phase angle, voltage level, external trigger). Transient operation supports continuous, armed, and off states.
Adaptive Load Parameters
Programmable crest factor and power factor control accommodates non-sinusoidal source conditions and specialized load profiles.
– Typical Applications
• UPS system validation and runtime testing
• Inverter performance characterization
• Switch and circuit breaker load capacity verification
• Power source transient response analysis
• Fuse and connector stress evaluation
• Non-linear load emulation for power quality assessment
– Compatibility & Integration
PC control interface enables remote programming and test automation. The 4600 Series scales from 3 kW to 36 kW in 3 kW increments with field expandability, supporting multi-unit configurations for higher power requirements.
