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Regenerative DC Source/Load System

ITECH IT-M3900B: Source/Sink Operation for Dynamic DC Test Profiles

The ITECH IT-M3900B Series combines a bidirectional DC power supply with a regenerative electronic DC load. With up to 6 kW in 1 U, 12 kW in 2 U, 1,500 V, and 1,020 A, compact DC test systems with high power density can be configured.

The IT-M3900B supplies and loads DUTs with a single instrument. In load operation, according to the manufacturer, up to 95% of the absorbed power is fed back into the grid. Fast current direction switching reduces overshoot during dynamic testing. CV/CC priority, adjustable output impedance, and programmable voltage, current, and power slew rates support changing operating points. Up to 10 million sequence points as well as CC, CV, CW, CR, and combined operating modes enable complex test sequences.

Battery Testing, Scalability and System Integration

Battery tests and simulations can be parameterized using voltage, capacity, internal resistance, and state of charge. Stored test curves support selected requirements according to LV123, LV148, DIN 40839, ISO 16750-2, SAE J1113-11, LV124, and ISO 21848; 10 V models are excluded. Master-slave parallel operation increases the available power. USB, CAN, LAN, and Digital I/O are integrated; GPIB and Analog/RS-232 are optional. OVP, ±OCP, ±OPP, as well as overtemperature, voltage-drop, and anti-islanding protection ensure safe operation.

Alternative Products

If your test system requires a dedicated high-power DC supply, the ITECH IT6600D Series provides high DC power in a compact form factor. If you need to apply regenerative loads to both AC and DC DUTs and feed energy back into the grid, the ITECH IT8200E Series is the suitable AC/DC load.

Related Product Categories

Bidirectional Devices | Electronic Loads | Power Supplies and Sources

Would you like to integrate the ITECH IT-M3900B Series into your test system or need support in selecting the right configuration?

Contact us – we will assist you in optimizing system design and integration into your test environment.

Variants

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Specifications

Reverse-polarity protection modules
  • IT-E165A-250, 750 V / 250 A
  • IT-E165A-400, 750 V / 400 A
  • IT-E165A-500, 900 V / 400 A
IT-E165B Anti-EMF protection module, 1,200 V / 200 A, for preventing reverse current from the DUT
Parallel operation IT-E168/IT-E169 fiber-optic kits for optical connection in parallel configurations
Rack mounting IT-E155A, IT-E155B, and IT-E155C for rack installation of 1 U units
Interfaces
  • IT-E176 GPIB
  • IT-E177 RS-232 and analog
Battery simulation BSS2000 battery simulation software
PV simulation SAS1000 software for simulating solar arrays and I-V characteristics
Fuel cell simulation FCS3000 software for single-channel fuel cell simulation
System cabinets
  • 15 U in gray or black
  • 27 U in gray or black
  • 37 U in gray or black
AC power cord optional 5 m power cord for system cabinets, depending on configuration
Test leads
  • IT-E30110-AB, 10 A / 1 m, alligator clip to banana plug
  • IT-E30110-BB, 10 A / 1 m, banana plug to banana plug
  • IT-E30110-BY, 10 A / 1 m, banana plug to Y terminal
IT-E9003 ITECH warranty up to 3 years
IT-E9005 ITECH warranty up to 5 years

Options & Accessories

IT-E165A-250 reverse-polarity protection unit, 750 V / 250 A
IT-E165A-400 reverse-polarity protection unit, 750 V / 400 A
IT-E165A-500 reverse-polarity protection unit, 900 V / 400 A
IT-E165B anti-EMF unit, 1,200 V / 200 A, for reverse-current protection
IT-E168/IT-E169 fiber-optic interconnection kit for parallel operation of multiple units
IT-E155A 1U rack-mount kit
IT-E155B supplementary 1U rack-mount kit for use with IT-E155A
IT-E155C supplementary 1U rack-mount kit for use with IT-E155A
IT-E176 GPIB communication interface
IT-E177 combined RS-232/analog communication card
BSS2000 battery simulation software
SAS1000 software for PV array and I-V curve simulation
FCS3000 software for single-channel fuel cell simulation
IT-E510-15U system cabinet, 15U, gray, 800 × 550 × 907.64 mm
IT-E511-15U system cabinet, 15U, black, 800 × 550 × 907.64 mm
IT-E510-27U system cabinet, 27U, gray, 800 × 600 × 1,441.41 mm
IT-E511-27U system cabinet, 27U, black, 800 × 600 × 1,441.41 mm
IT-E510-37U system cabinet, 37U, gray, 800 × 600 × 1,885.91 mm
IT-E511-37U system cabinet, 37U, black, 800 × 600 × 1,885.91 mm
IT-E258-15U 5 m AC power cord for 15U system cabinets, Chinese standard
IT-E258-27U 5 m AC power cord for 27U system cabinets, Chinese standard
IT-E258-37U 5 m AC power cord for 37U system cabinets, Chinese standard
USB cable connection cable for USB communication
AC power cord model-dependent mains connection cable
IT-E30110-AB test lead, 10 A, 1 m, alligator clip to banana plug
IT-E30110-BB test lead, 10 A, 1 m, banana plug to banana plug
IT-E30110-BY test lead, 10 A, 1 m, banana plug to Y terminal
IT-E9003 ITECH warranty extension for up to 3 years
IT-E9005 ITECH warranty extension for up to 5 years

Scope of Delivery

Device(s) of the IT-M3900B Series
Power cord
USB communication cable
Factory test report
Operating manual

Applications

Battery testing and battery simulation
Automotive power electronics and automotive testing
Industrial power supplies, UPS, and HVDC systems
Small and medium-power motor drives
PV and solar array simulation
Fuel cell simulation

Videos

Links & Downloads

Available Documents (Subject to Change)

Supplier

LXinstruments has been supplying ITECH equipment since 2020. When an individual instrument needs to become part of a complete test system, we support you with product selection, system sizing and integration into the automation environment. The key is to ensure that the DUT, power requirements, interfaces and test sequence work together.

We also use ITECH equipment in customized test systems. Depending on the test application, we combine power supplies, electronic loads, grid simulation and measurement technology so that the functions match both the DUT and the test sequence.

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Power: 21–231 kVA (Master/Slave: up to 10 MVA), Voltage: 350 V L-N / 606 V L-L, Current: up to 1155 A

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