Name: EA-PSI 10750-20 3U
Brand: TPS ELECTRIC LLC
Availability: InStock
Rating: 5 (1 reviews)

EA-PSI 10750-20 3U

0-750V adjustable voltage, 0-20A current, and 5000W auto-ranging power in a compact 3U 19" rack chassis. Built-in function generator with sine/triangle/arbitrary/PV/fuel cell modes, touchscreen HMI, analog & digital remote control, master-slave parallel up to 960kW, and full protections (OVP/OCP/OPP/OT). Ideal for high-voltage battery pack testing, EV drivetrain validation, solar string inverter MPPT, and industrial R&D.

Output Current

0-20A

Output Power

5000W

Output Voltage

0-750V

Type

Characteristic Curve

U/I/P autoranging

External Control

Analogue 0-5V/0-10V, USB, LAN, Modbus TCP, Profibus, DeviceNet, RS232, CAN

Housing

19" rack

Human Interface

Touch panel & Menu

Special Feature

Function Generator, Resistance

30-Second Fit Check

Output: 0-750V, 0-20A, 5000W with true autoranging (U/I/P).

AC input: 380-480V ±10%, 3-phase, 45-66Hz. On 208V input, derates to 3000W.

Efficiency: ≤95.5% at full load and full output voltage.

Regulation: Load regulation CV ≤0.05% FS, line regulation ≤0.01% FS.

Ripple: ≤200mV rms / ≤800mV pp (CV mode, 300 kHz / 20 MHz BW).

Protections: Adjustable OVP, OCP, OPP, plus OT, PF.

Built-in function generator and internal resistance simulation (1.2Ω – 2200Ω).

What It Is + Why It Matters

High-voltage programmable DC power supply for EV battery packs (up to 800V class), fuel cell stacks, solar string inverters, and industrial R&D.

Autoranging output delivers full 5000W across wide voltage/current range – no manual range switching.

Built-in function generator with sine, triangle, rectangle, trapezoid, arbitrary (99 points), ramp, DIN 40839, plus PV and fuel cell simulation (EN 50530 compliant).

Master-Slave parallel operation – up to 64 units for 960kW total power; true current sharing via Share bus and digital MS bus.

High stability: temp coefficient CV ≤30ppm/°C after warm-up.

Note: Remote sensing compensates up to 5% of U_Nom. Always use DC terminal covers – hazardous voltage possible (750V).

Key Specs (EA-PSI 10750-20 3U)

Voltage range: 0-750V (adjustable).

Current range: 0-20A (adjustable).

Power range: 5000W (autoranging).

Internal resistance simulation: 1.2Ω – 2200Ω.

Rise/Fall time (CV): ≤10ms (10-90%).

Display accuracy: Voltage ≤0.05% FS, Current ≤0.1% FS.

Insulation: AC input to DC output 3750Vrms; DC minus to PE ±1500V, DC plus to PE +2000V.

Output capacitance: 180μF.

Cooling: Forced air flow front to rear, temperature-controlled fans.

Dimensions (WxHxD): 19" x 3U x 668mm. Weight: ~18 kg (40 lb).

Interfaces & Remote Control

Standard digital: USB (rear B) + Ethernet (100M) supporting SCPI and ModBus RTU; USB host (front) for data logging/sequencing.

Built-in analog interface (15-pin D-Sub): 0-5V / 0-10V selectable range for set/readback of U/I/P/R; includes remote on/off, alarm outputs, and CV/CC status.

Optional plug-in modules (IF-AB series): Profibus, ProfiNet, CAN, CANopen, RS232, ModBus TCP, EtherCAT – installable without opening the device.

Web server on LAN port for configuration and manual SCPI commands.

Remote sense for voltage drop compensation (max 5% of U_Nom).

Best for / Not for

Best for: High-voltage battery pack testing (EV, ESS up to 750V), fuel cell stack evaluation, solar inverter MPPT tracking (EN 50530), on-board charger (OBC) test, DC-DC converter validation, and capacitor charging.

Not for: Applications requiring output above 750V or above 20A per unit (use master-slave parallel); low-voltage high-current applications (consider other PSI 10000 models).

Selection Checklist + Integration

Confirm AC supply: 3-phase 380-480V recommended for full 5000W; on 208V derated to 3000W.

DC cable cross-section: For 20A / 5m length, use at least 2.5mm² (AWG13) with insulation rated for 750V DC.

Mounting: 19" rack, 3U height, allow >30cm rear clearance for airflow.

For master-slave parallel: Connect Share bus (BNC) and MS bus (RJ45 CAT5); configure termination (BIAS/TERM) per manual.

For remote sense: Use included sense plugs to compensate voltage drop at load terminals, especially at high voltage.

For PV simulation: Prepare IU table (4096 points) on USB or use internal EN50530 day trend; connect a solar inverter as load.

Firmware: KE/HMI 3.02+ recommended for extended PV functions and SEMI F47 support.

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