EA-ELR 11500-30 3U Programmable Regenerative DC Electronic Load

The EA-ELR 11500-30 3U is a high-performance, energy-recovering electronic DC load designed for demanding test applications. It features a wide voltage range of 0-1500V, a current range of 0-30A, and a power rating of 0-15,000W (0-9,000W when AC input is 208V). As part of the EA-ELR 10000 3U series, this regenerative DC load converts absorbed DC power back into the AC grid with up to 95.5% efficiency, significantly reducing operating costs and heat dissipation. It supports constant voltage (CV), constant current (CC), constant power (CP), and constant resistance (CR) operating modes, and includes a built-in function generator for dynamic load testing with sine, triangular, rectangular, trapezoidal, and arbitrary waveforms. It is ideal for testing power supplies, batteries, and solar panels, and supports master-slave parallel operation for systems up to 960kW.

Key Features

• Energy Recovery Function: Recovers up to 95.5% of energy back to the AC grid, reducing operating costs and cooling requirements.
• Multiple Operating Modes: Supports constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR) modes for versatile testing.
• Integrated Function Generator: Generates dynamic load profiles including sine, triangular, rectangular, trapezoidal, DIN 40839, and arbitrary waveforms.
• Battery Test Function: Performs static or dynamic discharge tests with capacity (Ah) and energy (Wh) measurement and logging.
• MPP Tracking: Simulates solar inverter behavior with four MPP tracking modes for photovoltaic panel testing.
• Master-Slave Parallel Operation: Enables connection of up to 64 units for high-power systems with automatic current sharing.
• Comprehensive Remote Control: Built-in USB, Ethernet, and analog interfaces; optional modules for CANopen, Profibus, ProfiNet, ModBus TCP, EtherCAT, and more.
• High Voltage and Power Capability: 0-1500V, 0-30A, 15kW (9kW at 208V AC input) for testing high-power DC sources.
• User-Friendly HMI: 5-inch color TFT touchscreen with intuitive menu, rotary knobs, and USB data logging.
• Protection Features: Configurable OVP, OCP, OPP, OT, and user-definable events for safe operation.