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Gustav Klein

MI-TS-3871-ol - Multi-channel DC source/sink with overload function

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Datasheet

The MI-TS-3871-ol from Gustav Klein is a multi channel infeed test system designed for the testing and emulation of batteries, fuel cells, and powertrains, with an additional overload capability for enhanced performance.

It features a high performance output of up to 1200V and 1200A, making it suitable for demanding applications. The system delivers a maximum power of 650kW in single operation, which can be expanded up to 1.3MW in parallel configurations to support larger and more complex testing requirements.

An integrated overload function provides added flexibility, allowing operation up to a maximum of 500kW when required, enabling more dynamic and intensive test conditions.

Power:

Up to 756kVA+

Voltage:

350Vac L-N/606Vac
L-L or ±500Vdc

Frequency:

Up to 1,200Hz

Features and Equipment

General Characteristics

  • High-dynamic converter
  • Overload: 50% for 60 seconds (3-minute cooling time at nominal load) for systems from 60 kW to 160 kW
  • Overload: 25% for 60 seconds (3-minute cooling time at nominal load) for systems up to 250 kW to 500 kW
  • Short-circuit proof low < 3 kA or 8 kA (< 8 kA for 1000 A systems)
  • Control accuracy 0.1% fs
  • Residual ripple voltage and current < 0.1% fs
  • Measurement accuracy voltage and current 0.1% fs
  • Connection terminals for sense line for DC voltage measurement
  • Current rise time < 1 ms (up to 800 V), < 1.3 ms (1000 V)
  • Seamless transition source/sink
  • TFT display with touch operation, Protection class IP20
  • Air-cooled, High efficiency

Safety Equipment

  • Safety controller for performance level d (PLd) according to ISO 13849-1 / EN 60204-1
  • DC output contactor
  • Galvanic isolation for mains supply
  • Main switch (load break switch with fuses in the AC input; lockable in the off position)
  • Stop switch (black mushroom button) in control cabinet door
  • Voltmeter and green indicator light in the cabinet door
  • Connection terminals for external emergency stop
  • Connection terminals for external stop

Interfaces (some optional)

  • Modbus TCP/IP
  • CAN bus
  • VNC over Ethernet
  • SCPI
  • EtherCAT
  • PROFIBUS
  • PROFINET
  • Analog interface
  • LabVIEW driver package
  • Matlab-Simulink (Running Matlab-Simulink projects)
  • Additional interfaces are available as an option.

Options (excerpt)

  • Insulation monitoring
  • Protection diode (no source operation)
  • Parallel run
  • Control cabinet for installing various equipment options (e.g. test bench switching, discharge unit, etc.)
  • Discharge Unit
  • PDU (connection box for test subject)
  • Performance level “e”
  • Emergency stop in cabinet door
  • Adjustment of the protection rating of control cabinets (IP21 – IP54)
  • Water cooling instead of air cooling

Typical Applications

  • Battery tests (charging and discharging tests of batteries)
  • Battery simulation / battery emulation
  • Load for fuel cells
  • Test power supply for component testing (e.g. contactors, cables, circuit breakers…)
  • Testing of DC motors (drive train)
  • EV / EVSE Testing for  charging stations

Technical Data

TYPE I-TS-3870 & MI-TS-3871

Specification Details
Input voltage / input frequency 380 / 400* / 440 / 480 / 500 / 690 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
Voltage ripple ≤ 0.1% effective fs
Current ripple ≤ 0.1% effective fs
Dynamic voltage tolerance (0–100% nominal voltage in 3 ms) Battery tester < 3%
Battery simulator < 1%
Short-circuit behavior Systems up to 600A: Icw < 3 kA
Systems > 600A: Icw < 8 kA
Minimum distance from ceiling 300 mm (Standard, IP20)
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, -45 to +70 °C
3K22 / 3M11, +5 to +40 °C
Lineup Workplace with restricted access
Installation on non-combustible flooring
Protection class IP20 according to IEC 60529
(others available on request)
Security EN ISO 13849-1
Basic standard EN 62040
EMC EN 61000-2-4 (Mains disturbances)
EN 61000-6-2 (Immunity)
EN 61000-6-4 (Emission)
EN 61800-3 Cat C2 (A1) (Variable speed electric drives)

*Standard 400 V

FAQ

Mi‑TS3871-ol (overload) impresses even in the standard system Mi-TS3871 configuration At the same time, it offers the possibility of increasing performance thanks to parallel output channels.

The i‑TS3840 is commonly used by:

  • 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
  • Power supply of trains for maintenance purposes

Yes, Mi-TS3871-ol allows for a short-term overload at the DC output. This enables the system to operate at specific points outside the nominal range, thus fulfilling requirements in the test sequence. The DC converter's output voltage and current specifications remain unchanged. However, a maximum output load up to 50% higher is available for a maximum of 60 seconds. The subsequent regeneration time (≤ nominal load) is five times the overload duration.

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Contact:

CALTEST INSTRUMENTS PVT LTD

NMR Green Nest, Ground Floor
Hitech Defense and Aerospace Park
Bangalore North, Bandi Kodigehalli
Bangalore 562149
Karnataka

india.mktg@caltest.de
+919845007602

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