OverviewThe MI-TS-3871-ol is a multi-channel system designed for energy storage and power electronics testing. It is a bidirectional DC source/sink with continuous, seamless transition between source and sink operation and an overload-capable output stage.
Product summaryThe MI-TS-3871-ol supports two or four output channels (configuration dependent) and provides high dynamics for charge/discharge cycles, battery emulation and power hardware-in-the-loop tests. Short-term overload capability permits up to +50% nominal output current for a maximum of 60 s with a regeneration period defined as ≤ nominal load = 5 × overload time.
Standard features- Delivered in a ready-to-use standard configuration
- Input voltage: 380 / 400 V (standard), 3-phase, 50 / 60 Hz
- Sense connections for accurate voltage measurement and regulation
- DC voltage and current measurement with 0.1% full-scale accuracy
- Optional battery tester mode
- Protection class IP20 (water cooling option increases to IP54)
- Noise-reduced mechanical design and fan control
- Air cooling; parallel operation of output channels to increase current
Safety features- Lockable main switch acting as load-break switch
- Safety control designed for Performance Level d (EN 60204-1 / ISO 13849-1)
- Stop switch in cabinet door and indicator voltmeter
- Redundant DC output contactors
- External emergency-stop and stop input terminals
- DC output electrically isolated from AC mains (galvanic isolation)
Interfaces- 10-inch touch display for operation and monitoring
- Modbus/TCP, CAN and VNC interfaces (many optional interfaces available)
Options (extract)- Upgrade to Performance Level e (special safety option)
- Battery emulation version with improved voltage stability (hardware and software adaptation)
- Switchable protective diode at DC output for sink-only protection
- Insulation monitoring for galvanic isolation supervision
- Optional interfaces: CAN high-speed (1 kHz), SCPI, EtherCAT, ProfiBus, ProfiNet, analog I/O, LabVIEW, Matlab/Simulink
- Higher-performance DC output contactors, door contact switches, locking devices and custom cabinet options
- NA-protection / grid analysis measuring device for grid-code compliance
- Water cooling option and increased protection class (IP54)
Typical applications- Battery charge/discharge testing and battery emulation
- Fuel cell loading and power-system simulation
- Test supply for contactors, fuses and circuit breakers
- DC motor testing (drivetrain) and charging-station validation
- Power supply for rail vehicle maintenance and other industrial test benches
Technical data (excerpt)Type: MI-TS-3871-ol
AC mains voltage / frequency: 380 / 400 / 440 / 480 / 690 V ±10 %, 3-phase, PE, 50 / 60 Hz ±5 %
Measurement and control accuracy: Voltage and Current — 16 Bit ADC; DC measurement accuracy 0.1% full scale; control accuracy 0.1% fs
Residual ripple: Voltage ≤ 0.1% rms fs; Current ≤ 0.1% rms fs
Short-circuit performance examples: up to 600 A — Icw 3 kA; 1000 A — Icw 8 kA; 1200 A — Icw 15 kA
Current rise time (0.5 × INenn, 10 %–90 %): typically < 1.0 ms (type/configuration dependent)
Available types (examples)I-TS-3871-600-ol — max. DC voltage: 600 V — Power: 60, 100, 160, 250, 320, 400 kW — Currents: ±200, ±600, ±1000 A
I-TS-3871-800-ol — max. DC voltage: 800 V — Power: 100, 160, 250, 320, 400 kW — Currents: ±200, ±600, ±1000 A
I-TS-3871-1000-ol — max. DC voltage: 1000 V — Power: 100, 160, 250, 320, 400, 500 kW — Currents: ±200, ±600, ±1000, ±1200 A
NotesShort-term overload: nominal output load can be increased by up to 50% for a maximum of 60 s; regeneration time at ≤ nominal load equals 5 × overload time.
Technical specifications- Model: MI-TS-3871-ol
- Function: Multi-channel bidirectional DC source/sink with continuous source–sink transition
- Outputs: 2 or 4 outputs (configuration dependent)
- Per-output capability (depending on configuration): up to 1500 V and 1200 A
- Short-term overload: +50% nominal current for max. 60 s; regeneration time ≤ nominal load = 5 × overload time
- AC mains: 380 / 400 / 440 / 480 / 690 V ±10 %, 3-phase, PE; 50 / 60 Hz ±5 %
- Measurement accuracy: 16 Bit ADC for voltage and current; DC measurement accuracy 0.1% fs
- Protection class: IP20 standard (water cooling option IP54)
- Cooling: Forced air cooling (standard) or forced water cooling (option)
- Display / Control: 10-inch touch display; standard interfaces: Modbus/TCP, CAN, VNC; many optional interfaces available