AC & DC Regenerative Test Equipment

Programmable Power for AC & DC

NH Research, Inc.'s (NHR) Regenerative AC & DC test equipment are designed to assist companies in performing testing while simultaneously improving utility-energy efficiency and reducing operating costs. The AC & DC regenerative line includes the Modular DC Loads (9200, 9210), High Current DC Load (9220), High-Voltage DC Load (9300) series, and the 4 Quadrant AC Load (9430) model.  NHR's Regenerative Grid Simulator (9410) series is a special bi-directional source that simulates the utility voltage and regenerates power sourced by grid-tied inverters. These products are regenerative, meaning that they convert power from the UUT back into usable AC power which is precisely matched to and returned to the facility resulting in lower net utility consumption. Operating costs are lowered by reduced consumption and demand charges as well as reducing or eliminating costs associated with installation, operating, and maintaining chillers and air-conditioning systems.

There are a wide range of applications NHR's AC & DC regenerative test equipment and test systems are designed to support. A partial list of these applications include: battery testing, chargers, Electric Vehicles (EV), vehicle to grid (V2G), flow batteries, fuel cells, micro-grid testing, super capacitors, and much more!

Key Features:

  • Regenerative, recycles loading power instead of converting it into waste heat
  • Bi-directional DC Source (9200 and 9300 Series)
  • Advanced control features beyond simple settings of voltage, current, & power
  • Simulation of real-world conditions (including transients and parameter adjustment)
  • Built-in waveform digitizer & advanced measurement system
  • Precision measurements with separate voltage/current ranges
  • Eliminates need for additional measurement devices

NHR regenerative test equipment deliver the power, precision and flexibility needed to meet or exceed your test solution needs.

Why Regenerative Loads and Sources?

Regeneration significantly reduces the cost of heat. Regenerative loads recycle the UUT output power back onto the facility or UUT in the form of re-usable electricity. This allows the test system to lower the total electrical usage while significantly reducing waste heat. For example a regenerative load with > 90% efficiency would return more than 90% of the UUT’s output power back to the facility and convert less than 10% of the UUT power into heat. Using regenerative power reduces the total power demand and associated electrical costs such as equipment required for facility cooling.

To see potential cost savings, download The Benefits of Regenerative Loads and Sources appnote.

Regenerative vs. Traditional Power

Using a traditional load provides power to the unit under test (UUT) from a facility connection. The output of the UUT then converts this power into waste heat. Additional power is then required to operate a chiller to remove the waste heat from the workspace. Using a regenerative load returns the majority of the UUT output power back to the facility. The total amount of power required from the utility is then reduced as the UUT can use the power from both the utility connection and the power returned by the regenerative load. This directly reduces the total amount of power used by the facility to conduct the required testing.

Products

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