Elektro-Automatik EA-EL-9500-180 DC Electronic Load
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Elektro-Automatik EA-EL-9500-180 high-power DC electronic load with 500V input, 180A current, and 7200W capacity featuring FPGA control and four regulation modes.
Product details
| Model | EA-EL-9500-180 |
| Manufacturer | Elektro-Automatik |
| Category | Power Supplies & Electronic Loads |
| Availability | Made to order |
Description
Overview
The Elektro-Automatik EA-EL-9500-180 is a compact DC electronic load from the EA-EL 9000 B series, designed for high-power test applications requiring precise voltage and current control. This 500V/180A/7200W load combines FPGA-based digital control with a large color TFT touch panel for intuitive manual operation.
The EA-EL 9000 B series significantly increases the power-to-height ratio compared to earlier models, with 6U rack-mounted units capable of consuming up to 7.2 kW per unit. The load features four common regulation modes (constant voltage, constant current, constant power, and constant resistance) and extensive digital control options.
Key Features
- FPGA-based digital control circuit with color touch panel interface
- Four regulation modes: CV (Constant Voltage), CC (Constant Current), CP (Constant Power), CR (Constant Resistance)
- Function generator for arbitrary waveform creation and table-based XY functions for simulating nonlinear resistances
- Adjustable protections: OVP (Overvoltage), OCP (Overcurrent), OPP (Overpower)
- Master-slave bus connectivity for parallel operation of multiple units up to 460 kW total
- Battery test mode with elapsed time and capacity tracking in Ah
- MPP tracking for photovoltaic testing with four simulation modes
- Multiple control interfaces: analog (0–5V/0–10V), USB, RS232, CAN, LAN, Profibus, DeviceNet, and ModBus RTU/TCP
- Galvanically isolated analog and USB interfaces
- Thermal derating to prevent overheating during maximum power operation
Applications
- DC power supply testing and validation
- Battery testing and characterization with discharge curve analysis
- Photovoltaic (solar) inverter testing with Maximum Power Point simulation
- Power conversion and regulation verification
- Renewable energy system testing using source-sink configuration with power supplies
- Aging and long-term reliability testing of power equipment
- Automotive and industrial power system validation
Specifications
| Construction | All models are built in 19“ wide rack enclosures with 3U or 6U of height and 460 mm (18.1”) of depth, which makes them ideal for use in 19“ cabinets of various sizes, for example 42U, and for the design of systems with very high power. It's furthermore possible to build cabinet systems with mixed equipment, i.e. electronic loads and power supplies, in order to achieve the source-sink principle with high power ratings. |
| Handling (HMI) | Manual operation is done with a TFT touch panel, two rotary knobs and a pushbutton. The large color display shows all relevant set values and actual values at a glance. The whole setup is also done with the human-machine interface, as well the configuration of functions (square, triangle, sine) etc. The display is multilingual (German, English, Russian, Chinese). |
| Thermal De-rating | The devices of the EA-EL 9000 B series are equipped with thermal derating in order to avoid overheating when operating in the maximum power range. The lower the ambient temperature and the better the cooling, the higher the power that the load can take. The nominal intake power before the derating starts is defined at 21°C ambient temperature. |
| Battery Test & MPP Tracking | For purposes of testing all kinds of batteries, such as for example constant current or constant resistance discharging, the devices offer a battery test mode. This show extra values for elapsed testing time and consumed capacity (Ah). All the data can be recorded directly to USB stick. For photovoltaics related tests there is another function included as standard: MPP tracking. Four modes allow for simulation of the typical characteristics of solar inverters being connected to solar modules or panels. The function is used to determine typical operation parameters, such as the so-called Maximum Power Point and the related values Uᴍᴘᴘ, Iᴍᴘᴘ and Pᴍᴘᴘ. One of the modes even offers particular analysis with different irradiation values in form of a table with 100 points. |
| Remote Control & Connectivity | For remote control, there are by default two interface ports (1x analog, 1x USB) available on the rear of the devices, which can also be extended by optional, pluggable and retrofittable, digital interface modules (dedicated slot). For the implementation into the LabView IDE we offer ready-to-use components (VIs) to be used with the interface types USB, RS232, GPIB and Ethernet. Other IDEs and interfaces are supported by documentation about the communication protocol. Windows users can profit from the free software “EA Power Control”. It offers a feature called “Sequencing”, where the device is controlled through a semi-automatic table in CSV format. This table represents a simple test procedure and can be created and edited in MS Excel or other CSV editors and then imported into the software tool. |
| Feature | Parameter |
| Product Type | DC Electronic Load |
| Housing | 19" rack |
| Voltage (V) | 500.00 |
| Current (I) Ampere | 180.00 |
| Power (P) Watt | 7200.00 |
| Resistance (R) | Yes |
| Characteristic Curve | U/I/P autoranging |
| Human Interface | Touch panel & Menu |
| ext.control-analogue 0-5V/0-10V | Yes |
| ext.control - GPIB (IEEE488) | No |
| ext. control - USB | Yes |
| ext.control - RS232 | Yes |
| ext.control - CAN | Yes |
| ext.control - LAN | Yes |
| ext.control - Profibus | Yes |
| ext.control - DeviceNet | Yes |
| ext.control - Modbus | Yes |
| Special Feature - Function Generator | Yes |
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