EA-PSB 11000-80 4U 1000V 80A Programmable Bidirectional DC Power Supply

The EA-PSB 11000-80 4U is a high-performance, 30 kW programmable bidirectional DC power supply from the PSB 10000 series by EA Elektro-Automatik. It ingeniously integrates the functions of a precision bench power supply and a high-power electronic load (sink) into a single 4U rack-mount unit. This bidirectional DC power source and sink features advanced energy recuperating technology, feeding up to 96.5% of the consumed energy back into the AC grid with high efficiency, making it both an economical and eco-friendly solution for high-power testing. With a wide output range of 0-1000V and 0-80A, it is perfectly suited for demanding applications such as solar inverter testing, battery formation and cycling, fuel cell testing, and powering high-voltage DC loads.

This programmable benchtop power supply (PSU) offers exceptional versatility. It operates seamlessly in constant voltage (CV), constant current (CC), constant power (CP), and constant resistance (CR) modes. Its built-in function generator enables complex waveform simulation for sine, triangular, rectangular, trapezoidal, and arbitrary profiles. Specialized functions include Photovoltaics (PV) simulation according to EN 50530, Fuel Cell (FC) simulation, Battery Test cycles, and Maximum Power Point (MPP) Tracking, providing a complete test platform for renewable energy and energy storage research and development.

Key Features

• High-Power Bidirectional Operation: Functions as both a precise 30 kW DC power supply and a regenerative electronic load in one device, enabling source and sink testing without switching hardware.
• Advanced Energy Recuperation: Recovers and feeds back energy to the AC mains with up to 95.8% efficiency, drastically reducing operating costs and heat dissipation.
• Wide Voltage & Current Range: Delivers 0-1000V and 0-80A, covering a broad spectrum of high-voltage and high-power testing needs.
• Comprehensive Testing Functions: Integrated features for Photovoltaics (PV) simulation, Fuel Cell (FC) simulation, Battery Testing, and MPP Tracking, supporting R&D in green energy technologies.
• Programmable & Flexible Control: Features a color touchscreen HMI, rotary encoders, and supports remote control via USB, Ethernet, analog interface, and optional digital bus modules (CAN, Profinet, ModBus TCP, etc.).
• Robust System Expansion: Supports master-slave parallel operation of up to 64 units via Share Bus and Master-Slave Bus, enabling system power scaling up to 1920 kW.
• High Precision & Stability: Offers excellent regulation (CV ≤0.05% FS), low ripple, and accurate display (Voltage ≤0.05% FS, Current ≤0.1% FS) for reliable test results.
• Enhanced Safety & Protection: Equipped with adjustable OVP, OCP, OPP, overtemperature protection (OT), and comprehensive user-definable event monitoring to safeguard both the device and the unit under test.