Tektronix Encore

NH Research 9430-24
Regenerative AC Load, 4-Quadrant, 24kW

Electronic Loads >> AC Electronic Loads and AC/DC Combo Loads >> Regenerative AC Load, 4-Quadrant, 24kW
Rent Used Test Equipment
Manufacturer: NH Research
Model: 9430-24

NH Research 9430-24 Regenerative AC Load, 4-Quadrant, 24kW

Electronic Test and Measurement Equipment

NH Research 9430-24 Regenerative AC Load, 4-Quadrant, 24kW Product Datasheet Download Product Datasheet

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Available Option Configurations


  • TP - Touch Panel Screen
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Product Overview

RENT NH RESEARCH 9430-24 Regenerative AC Load, 4-Quadrant (Call for Availability)

The NH Research 9430-24 4-Quadrant Regenerative AC Load, with selectable phase inputs/outputs and a built-in waveform digitizing measurement system has the capability of simulating almost any linear or non-linear load. Applications include testing of UPSs, AC sources, inverters, rectifiers, switches, circuit breakers and fuses. In the sink mode, it sends power back to the facility mains rather than dissipated as heat.


The most unique feature of the NHR 9430-24 AC Load is its ability to operate in all 4-quadrants. This bi-directional capability significantly expands load simulation relative to 2-quadrant AC loads. More specifically, the 9430-24 allows creating the reverse current caused by inductive or capacitive loads (low power factors); namely sending power back to the UUT (source) during part of the AC cycle (Fig. 1). In this manner the 9430-24 accurately duplicates real-world reactive electrical power flows.

HIVAR® Design Feature

The advanced HIVAR® design feature provides for testing high reactive load input power without the customary reduction of true power (Watts) normally required with conventional loads. The HiVAR design provides testing sources with reactive power (VARs) as large as 2.6 x true power (Watts.)  All 9430-24 Loads are rated both for true power and apparent power. For instance, a 12kW Load is also rated for 31.5kVA.


To provide testing under the broadest range of loading conditions, the NH Research 9430-24 Load will operate in several Emulation Modes. Constant Current (CC) Mode provides current to be drawn constantly, making it suitable for linear, non-linear and regulation loading. Constant Resistance (CR) Mode allows the load to emulate a power resistor with a unity power factor. Constant Power (CP) Mode emulates a load such as a switching power supply. Constant Apparent Power (CS) Mode expressed as VA, is a vector quantity where there is both real power and reactive power (Fig. 2). Constant RL (CRL) Mode emulates a resistive load with an inductive component such as a motor


The NHR 9430-24 Load returns greater than 90% of power to the facility thereby providing significant electrical savings. It certain continuous loading testing, it has been shown that the load will recover its purchase cost in 2 - 3 years. Even for intermittent load usage, the savings from regenerative return to the facility is substantial and worth evaluating. Additional benefits are a more comfortable work environment, less air conditioning required and an elimination of facility power upgrade.

Features and specifications of the NHR 9430-24 AC Load include:

  • 24kW
  • Single, Split or Three-Phase programmable
  • 10 to 350VAC
  • 30 to 880Hz
  • DC operation to 10 to 400VDC
  • Reactive power capability 2.6 x Real Power
  • Sink power regenerated back to facility with >90% efficiency
  • Power factor range: -1 to +1
  • Crest factor range: 1.414 to 4.000
  • High-resolution waveform digitizer
  • 9” Touch-Panel user interface
  • High power density/minimum rack space


See Datasheet for full specifications

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