EA-PSB 11500-30 3U 15kW Programmable Bidirectional DC Power Supply

The EA-PSB 11500-30 3U is a high-performance, programmable bidirectional DC power supply from the PSB 10000 3U series, integrating the functionality of a laboratory DC power supply (source) and a regenerative electronic load (sink) into a single 3U 19" rack-mount enclosure. As a versatile DC power source and sink, it delivers an output voltage of 0-1500V and an output current of 0-30A, with a total DC output power of 0-15000W. This bidirectional power supply features seamless and gapless switching between source and sink modes, making it ideal for complex testing applications. The integrated energy recovery function inverts consumed DC energy with up to 95.5% efficiency and feeds it back into the grid. The device includes a 5" color TFT touch screen for intuitive manual control and offers versatile remote control options via its built-in USB, Ethernet, and galvanically isolated analog interface. An optional plug-in module slot allows for the addition of industrial fieldbus interfaces like Profibus, ProfiNet, ModBus TCP, CANopen, and EtherCAT. It features a comprehensive function generator with sequences for sine, rectangular, triangular, arbitrary waveforms, as well as specialized functions for battery testing (charge/discharge), photovoltaic panel simulation (PV/EN50530), fuel cell simulation, and MPP tracking. For increased power or current requirements, up to 64 units can be connected in a master-slave parallel configuration.

Key Features

• Bidirectional & Regenerative: Functions as both a programmable DC power supply (source) and a regenerative DC load (sink) with seamless switching. Up to 95.5% efficiency in sink mode, feeding energy back into the grid.
• High Power Density: Delivers 0-1500V and 0-30A with a powerful 15kW DC output in a compact 3U 19" rack-mount housing.
• Versatile Operating Modes: Offers flexible regulation modes including Constant Voltage (CV), Constant Current (CC), Constant Power (CP), and Constant Resistance (CR) for both source and sink operation.
• Advanced Function Generator: Built-in function generator for creating complex sequences (sine, triangle, rectangle, arbitrary) and specialized applications like PV solar panel simulation (EN50530), fuel cell simulation, and comprehensive battery testing (charge/discharge cycles).
• Multi-Interface Remote Control: Standard with galvanically isolated analog interface, USB, and Ethernet (with web interface). Optional plug-in modules enable industrial communication protocols (ProfiBus, ProfiNet, ModBus TCP, CANopen, EtherCAT).
• Scalable System Solution: True master-slave bus allows for parallel connection of up to 64 units, increasing total system power up to 960kW with summed actual values displayed on the master unit.
• Precise Regulation: Features excellent load and line regulation with low output ripple (≤400mV rms, ≤2400mV pp) and high display accuracy (≤0.05% for voltage, ≤0.1% for current).
• Comprehensive Protection: Includes adjustable overvoltage (OVP), overcurrent (OCP), overpower (OPP), and overtemperature protection, plus user-definable monitoring events.