NH Research 4350 Series Modular Programmable DC Electronic Load

Product Overview:

  • 3 sizes – 150, 300, & 600W @ 500V with advanced measurement capability built-in
  • Mix & match loads for maximum configuration flexibility
  • Up to 16 loads in a single, 8 3/4″ / 5U Model 4300 chassis
  • Front loaded & front connections
  • 3 voltage and 3 current ranges for improved accuracy
  • High-resolution waveform capture for analysis of dynamic transients
  • Isolated digital inputs & outputs for test fixture support
  • PC/LAN control with LabVIEW & IVI drivers

More

The concept of having an advanced digital measurement system built in to each load plus being able to combine up to 16 of such loads into a single chassis opens several new test strategy possibilities that have significant economic and quality benefits.

The most important test strategy is the ability to test consumer power devices such as chargers, adapters and LED drivers in parallel, up to 16 in a single pass. Test times for such devices are now measured in a few seconds.

The other major advantage of this distributed measurement is the ability to test each output of a multi-output power conversion device simultaneously rather than sequentially. Not only does this dramatically reduce the overall test time but also provides far better channel-to-channel performance measurements including dynamic cross effects. In this manner quality of the devices tested takes a large step forward because the parallel tester better simulates real life conditions where all outputs are exercised together.

Yet another benefit of such a flexible load/measurement system is the ability to reconfigure the loading to adapt to almost any new loading arrangement required by brand new UUTs in the future.

Advantages

  • Modular load maximizes configuration flexibility
  • Simplifies automated test stand development
    • Triggerable set & measurment
    • Short circuit mode & over voltage relay
    • Isolated digital inputs & outputs
    • Built-in SW watchdog & safety limits
  • Software tools to shorten test development time
    • PC-based Softpanel GUI with scope display
    • Supplied LabVIEW & IVI-C/IVI-COM drivers
    • Optional: DC Load, emPower® or Enerchron® test sequencer

Benefits

  • Modular – up to 16 loads or combinations in single chassis
  • Built in features require fewer test devices
  • Front connections simplify wiring
  • Safety limits protect UUT

Model 4350 Modular DC Load (500V) Specifications

Model # 4350-150 4350-300 4350-600
Chassis Slots 1 2 4
Power 150W 300W 600W
Voltage 0 – 500V 0 – 500V 0 – 500V
Current 0 – 30A 0 – 60A 0 – 120A

The 4350 Series Modular DC Load (500V) is useful for testing the following applications & products:

Consumer Power Devices, Chargers, Adapters, LED Driver Testing, Solar Panel Testing

More Product Information

  • 3 sizes – 150, 300, & 600W @ 120V with advanced measurement capability built-in
  • Mix & match loads for maximum configuration flexibility
  • Up to 16 loads in a single, 8 3/4″ / 5U Model 4300 chassis
  • Front loaded & front connections
  • 3 voltage and 3 current ranges for improved accuracy
  • High-resolution waveform capture for analysis of dynamic transients
  • Isolated digital inputs & outputs for test fixture support
  • PC/LAN control with LabVIEW & IVI drivers

  • 6 sizes – 3 to 36kW, 30 – 360A, 50 – 350V
  • Single and 3-phase configurations
  • 12 high-accuracy internal measurements
  • 100-step macro for per cycle loading changes
  • User-defined waveforms
  • CC, CR, CV, CP, SC, UPF and CNL emulation modes
  • PC control using Lab VIEW and IVI drivers
  • LAN, RS232, USB communication interface
  • PC softpanel GUI with current, voltage & power waveform display

Flexible Product Line
  • Low power DC modules 
  • Low power AC modules 
  • High power DC, 19" rack mounted loads
  • High power AC, 19" rack mounted loads
  • 26 Total Models
Flexible Control
  • Remote: GPIB, RS-232, Analog 
  • Manual: Front Panel
  • DC Modes: CC, CR, CV, CP
  • AC Modes: CR, CC with crest factor control
  • Dynamic mode with slew rate control
Flexible Data Feedback
  • GPIB, RS-232
  • Current monitor output (SLM DC only)
  • Front panel

  • 8 Sizes – 4 to 96kW
  • 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

  • Closed-case Calibration
    • With the eLoad line, there’s no longer a need to send your electronic load back to the factory for calibration or remove dozens of screws to reach a potentiometer. Simply follow the AMREL calibration routine from the front panel and you should be back up and running in a very short period of time (some electronic test equipment needed). This will virtually eliminate downtime and eradicate the annual cost associated with shipping your eLoad back to the factory for calibration.
  • Individual FET Protection
    • To ensure the reliability of the PLA Series, AMREL’s design includes individual FET protection. A programmable electronic load may contain many FETs in parallel, which can create a cascading failure if one of them was to short out. AMREL’s eLoad programmable electronic load design isolates failures so other components will not be affected or stressed, increasing the system’s level of protection against catastrophic failure. With individual FET protection, the MTTR is reduced and the electronic load quickly returns to full operation.
  • Ultra-low Voltage Operation
    • The PLA design allows the programmable electronic load to operate at voltage levels approaching .1V. They will typically dissipate full rated current below 1% of their maximum rated voltage. For example, a 60V unit designed to dissipate1500A will allow the user to operate at .6V and still dissipate the full amount.

  • Closed-case Calibration
    • With the PLW eLoad line, there's no longer a need to send your electronic load back to the factory for calibration or to remove dozens of screws to reach a potentiometer. Simply follow the AMREL calibration routine from the front panel and you should be back up and running in a very short period of time (some electronic test equipment needed). This will virtually eliminate downtime and eradicate the annual cost associated with shipping your eLoad back to the factory for calibration.
  • Individual FET Protection
    • To ensure the reliability of the PLW Series, AMREL's design includes individual FET protection. A programmable electronic load may contain many FETs in parallel, which can create a cascading failure if one of them was to short out. AMREL's eLoad programmable electronic load design isolates failures so other components will not be affected or stressed, increasing the system's level of protection against catastrophic failure. With individual FET protection, the MTTR is reduced and the electronic load quickly returns to full operation.
  • Ultra-low Voltage Operation
    • The PLW design allows the programmable electronic load to operate at voltage levels approaching .1V. They will typically dissipate full rated current below 1% of their maximum rated voltage. For example, a 60V unit designed to dissipate 1500A will allow the user to operate at .6V and still dissipate the full amount.
  • High Power Density: up to 15 kW in 3U, 30 kW in a 6U chassis
  • Wide Voltage Range: 0-10V up to 0-1000V, from 4 to 30 kW
  • Fast Load Transient Response: Protection from undesired voltage excursions
  • Low Ripple and Noise
  • Hardware Trigger (Ethernet Option)
  • Parallelable up to 150 kW
  • Sequencing: Free system controller & speed up test
  • Low audible noise: Temperature controlled variable speed fans

  • 3U 7-slot VPX embedded System using FlexVPX backplanes
  • High Speed External Digital Communication using 10Gb or 1Gb Ethernet
  • High Speed inter-slot communication using PCIe
  • Ruggedized, conduction cooled enclosure designed to perform in harsh military environments.
Abaco Systems Products
  • FlexVPX backplanes supporting push fit RF connectors (i.e., VITA 67)
  • Xilinx Ultrascale or Virtex-7 FPGA cards (e.g., VP780)
  • Wide range of ADC and DAC cards using FPGA Mezzanine Cards (VITA 57)
3rd party Products
  • Single Board Computer with Quad Core i7 CPU
  • 3U VPX RF down and up converters
  • 3U VPX RF Switched Filter Banks
  • Digitally controlled RF Synthesizer
Size, Weight and Power (SWaP)
  • 23.90”x 7.00”x 6.75”(L X W X H)
  • 40 lbs (maximum weight with embedded shock isolators)
  • 28 Volt Source, 500W integrated Power Supply Unit
Environmental
  • Operating temperature: -40C to +70C
  • Shock and Vibration: MIL-STD 810
  • EMI: MIL-STD 461C X

Modular Architecture Benefits
  • The Sorensen HPX system does not go down in the event that one of the power building blocks fails.
  • Modularity allows more efficient maintenance as sparing can be done at the building block level.
  • Intelligent controls allow for sophisticated sequencing, constant power mode to allow for independent settings of max voltage, current and power and save/recall of the supply settings.
  • Flexible control includes front panel manual control, isolated analog input, RS232 and Ethernet (LXI) with an option to replace the Ethernet interface with IEEE-488.
Advanced Features
  • High Power Density: Up to 150KW in a single bay rack-mount cabinet. Up to 240KW in a dual bay rack.
  • Fast Load Transient Response: Protection from undesired voltage excursions
  • Fast Slew Rate with exceptional rise/fall times for speed-critical applications
  • Low Ripple: Suitable for the most sensitive applications
  • Low Audible Noise: Temperature controlled variable speed fans
  • High accuracy: Voltage/current measurements without external DMMs
  • Modular architecture simplifies sparing and maintenance

NH Research

NH Research, Inc. (NHR) designs and manufactures power electronics test instruments and complete turn-key test systems. Its products are used worldwide by manufacturers in the switching DC power supply, UPS, battery and battery charger industries. Applications typically involve either characterization or final test of customer products where a combination of advanced measurements, rapid test times and ease of setup & use are important. NHR has been in the power electronics test business for over 50 years (more about NHR) and has fully equipped facilities with highly skilled employees in Irvine, California and Shenzhen, China.

We have over 50 years experience working with, supporting and manufacturing power electronic test instruments and systems to some of the biggest names in the industry. Including, but not limited to:

Argonne Labs, BAE, Boeing, Chrysler, EADS, Ford, General Dynamics, General Electric, General Motors, Honeywell, Lockheed Martin, Mercedes-Benz, NASA, Northrop Grumman, NREL, Oak Ridge Labs, Raytheon, Sandia, Textron, UL, & UTC

NH Research, Inc. power electronics test systems and instruments deliver the power, precision and flexibility needed to meet or exceed your test solution needs.

Phone: 949-474-3900

Email Support Request Page

Products
Battery Test / Battery Emulation Testing Power Supply Test Systems
AC & DC Electronic Loads AC & DC Sources
AC & DC Regenerative Test Management Software

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