Gustav Klein
DC source/sink
The I-TS-3872 is a state of the art, water cooled flex channel DC source and sink system designed for high performance testing applications. Depending on operational requirements, it can be configured for single, series, or parallel operation, with series mode supporting voltages up to 1500V.
As part of the high performance I-TS infeed test system range, it delivers highly dynamic and fully bidirectional DC power with continuous and uninterrupted switching between source and sink operation. Its advanced three level technology provides an adjustable voltage range from 10V to 1500V with a centre point configuration.
The DC channels can be operated individually or connected in parallel, offering excellent flexibility for different testing environments. With its powerful performance and adaptable design, the I-TS-3872 is well suited for applications in the automotive, hydrogen, and laboratory sectors.
Features and equipment
Standard equipment
The I-TS-3872 impresses even in its standard system configuration with its comprehensive features and is therefore ready for immediate use by customers worldwide. Below is a brief overview:
General Data:
- Input voltage 380/400 V, 50/60 Hz
- Sense connectors for voltage measurement/regulation
- DC current and voltage measurement with 0.1% full-scale accuracy
- Battery tester/battery emulator version, switchable
- Protection class IP54
- Liquid cooling
- Integrated water/water heat exchanger
- Plug and Play parallelization of two I-TS 3872s with identical technical specifications
Safety features
- Lockable main switch as load break switch with fuses
- Safety controller for Performance Level d according to EN 60204-1 / ISO 13849-1
- Voltmeter and ready light in cabinet door
- Redundant DC output contactors
- Connection terminals for external “emergency stop”
- 2x connection terminals for external “stop”
- 1x connection terminals for external “operating mode selection”
- DC outputs are galvanically isolated
- 2x insulation monitoring devices (separately switchable)
interfaces
- 10-inch display with touch operation
- Modbus/TCP interface
- CAN interface (100 Hz, dbc file available)
- VNC interface
Options (excerpt)
- 2x fieldbus interfaces EtherCAT or Profinet IO or Profibus DP (one per channel)
- Door lock
- Fail-safe feedback: Emergency stop, Stop, DC output contactors open (individual selection not possible)
Typical applications
- Battery tests (charging and discharging tests of batteries)
- Battery simulation / battery emulation
- Load for fuel cells
- Test power supply for contactors, fuses and circuit breakers
- Testing of DC motors (drive train)
- EV / EVSE Testing (comemso electronics)
- Power supply to trains for maintenance purposes in the ICE workshops
|
Input voltage / Input frequency |
380 / 400 V ± 10%, 3-phase, PE, 50 / 60 Hz ± 5% |
| Measurement resolution |
Voltage: 16-bit ADC Current: 16-bit ADC |
| Control accuracy |
Voltage: 0.1% fs Current: 0.1% fs |
| Residual ripple |
Voltage: ≤ 0.1% RMS fs Current: ≤ 0.1% RMS fs |
|
Dynamic voltage tolerance (0-100% nominal voltage in 3 ms) |
Battery tester < 3% fs Battery emulator < 1% fs |
| Short-circuit behavior |
Short-circuit proof: Icw: 4.5 kA |
|
Permissible environmental conditions: Storage according to EN 60721-3-1, Transport according to EN 60721-3-2, Operation according to EN 60721-3-3 |
1K21 / 1M11, +5 to +40 °C 2K12 / 2M4, -25 to +70 °C 3K22 / 3M11, +5 to +40 °C |
| cooling | Liquid cooling (IP54) |
|
Machine safety - Safety-related parts of control systems |
EN ISO 13849-1 EN ISO 13849-2 |
| Machine safety |
EN 60204-1 excepted: • Chapter 11.3 Degree of protection see Technical data • Chapter 13.2 Identification of ladders |
| EMC standards |
EN 61000-2-4 Class 3 EN 61000-6-2 EN 61000-6-4 |
Available types
| type | I-TS-3872-1500 |
| Maximum DC voltage in V | 1500 |
| Power in kW | 300, 600 |
| Electricity in A | • ± 1000 |
| Current rise time at nominal U 10% - 90% in ms |
< 1.3 |
| Title | Document Type |
|---|---|
| Brochure | |
| Brochure | |
| Overview | |
| Contact |
FAQ
The AGX Series is a AC+DC high‑performance bi-directional regenerative programmable grid simulator and load (All-in-one) system that can both source and absorb power, enabling efficient testing of power electronics, EV systems, energy storage, and grid‑connected devices.
Regenerative means the AGX Series returns absorbed energy back to the grid instead of dissipating it as heat. This significantly reduces energy consumption, heat generation, and operating cost during high‑power testing.
It is both.
The AGX Series operates as:
- A programmable power source
- A programmable electronic load
- A bidirectional system for energy flow in either direction
A four‑quadrant AGX power source can operate in all four quadrants of the voltage–current (I–V) plane, enabling both sourcing and sinking of current under positive and negative voltage conditions. The direction of instantaneous power flow is determined by P=V×I, when P>0 (quadrant 1 and 3) , the unit delivers power to the DUT (source mode), whereas when P<0 (quadrant 2 and 4), it absorbs power from the DUT (sink or regenerative mode), with the absorbed energy returned to the grid.
It is important to distinguish this regenerative sink capability from a regenerative electronic load capability. While both functions involve energy absorption, they are not functionally equivalent.
An electronic load mode is optimised for precise load emulation and dynamic current control.
AGX has both Regenerative Operation and Electronic Load Operation.
Key factors include power rating, voltage range, phase configuration, regenerative
The AGX Series is used in:
- EV & EVSE testing
- Battery & energy storage systems (ESS)
- Solar and renewable inverters
- Power electronics R&D
- Bidirectional DC‑DC and AC‑DC converters
capability, waveform programmability, and application-specific testing requirements.
The AGX Series is used in:
- EV & EVSE testing
- Battery & energy storage systems (ESS)
- Solar and renewable inverters
- Power electronics R&D
- Bidirectional DC‑DC and AC‑DC converters
The AGX provides both input-to-output isolation, and phase to phase or channel to channel isolation. Galvanic isolation provides complete separation between the input and output so there is no electron flow between channels.
AGX has embedded, web browser interface with real-time control, we call it SmartSource Suite. No driver/license required to operate AGX.
The AGX is designed to handle overload conditions with its capability of providing 130% of its rated current for a duration of 2 seconds. This is critical for applications that have inrush current conditions that arise due to start up, transient power demands, or sudden changes in loads.
Yes. The AGX Series supports dynamic power profiles, allowing engineers to simulate real‑world operating scenarios such as load changes, power ramps, and bidirectional transitions.
Yes. The AGX Series is specifically designed for bidirectional power flow, making it ideal for:
- EV powertrains
- Energy storage systems
- V2G / V2H development
- Advanced power conversion systems
Yes. The AGX Series supports remote control and automation, allowing integration into automated test systems for repeatable and scalable testing.
