Electronic Power Conversion Application Test Solutions
NH Research, Inc. (NHR) has designed, built, installed and supported industry leading test instrumentation and turnkey test systems world-wide for over 50 years. Both instruments and systems are typically used to functionally test a wide variety of customer’s power conversion devices at either the research & development stage or at the end of a customer’s production line as the final check that their product is meeting all its specifications. In both functional areas, NHR provides highly flexible configurations, ease of programming, comprehensive measurement capability and exceptional test throughput. Some of the application test solutions NHR has delivered include the following:
Aerospace, Avionics & Defense
Another area NHR excels within the defense ATE community is its modular DC loads and sources. Both the Modular Test System S400 Series and the Modular DC Electronic Loads 4300 Series are meeting the high performance and limited space requirements of several major defense ATE programs today.
CFL Dimmer Testing
Charger & Adapter Test
DC Power Supply Testing
- The S400 Series – a compact production tester in 3 sizes for small-to-medium power levels
- The S600 Series – the newest tester with capability of testing from 1 to 16 channels in parallel with complete precision measurements
- The 5600 Universal Tester – a highly flexible tester that can be custom configured to meet the test requirements of a wide range of DC supplies
- The 5700 Engineering Characterization Tester – When performing design verification tests or just seeking more extensive testing of high-reliability power supplies all the tools are here to achieve both comprehensive testing and reporting almost immediately.
EV/HEV & Traction Battery Testing
The Model 9200 Battery Test System consists of bi-directional, regenerative DC power modules with voltages of 40, 120 or 600V. Capable of charge/discharge and cycle testing of 10 – 250kW module and pack-level batteries, this highly flexible system can be integrated into an existing software environment, run from a PC with NHR’s Enerchron® Test Manager or locally through a touch-panel located on the 9200 cabinet.
The High-Current DC Electronic Load (120V) 4700 Series and High-Voltage DC Electronic Load (600V) 4760 Series air-cooled dc loads can be used in applications where discharge only is needed. These loads can be controlled either through LabVIEW or NHR’s Enerchron® Test Manager.
Industrial Battery Charger Testing
LED Power Driver Testing
PV/DG Grid Tied Inverter Testing
The NH Research, Inc. 9410 Grid Simulator can provide a 1Φ, 2Φ, or 3Φ simulated utility connection while allowing per-phase controls for amplitude, wave shape, & the relative to a phase angle relationship. These features allow testing of any number of AC conditions including phase imbalance (in voltage and/or phase angle relationship), voltage sag, frequency changes, & harmonic injection. The included measurement system removes the need for an additional power meters, DMMs, oscilloscopes, or spectrum analyzers.
The 9200 Battery Test System includes a charge mode, a discharge mode, & a state of the art battery emulation mode which allows testing of a battery or electronically-emulating a battery. Using battery emulation replaces a real battery thereby eliminating risks associated with a battery failure even those potentially caused by a unit-under-test (UUT) failure. Additionally, battery emulation produces faster and more consistent testing by eliminating battery-related preparation time, operator errors, ∓ result variations due to temperature or aging.