Elektro-Automatik EA-PSI 10750-60 3U US208V Single Output Intelligent Programmable DC Laboratory Power Supply NEW

The Elektro-Automatik PSI10750603UUS208V Single Output Intelligent Programmable DC Laboratory Power Supply operates as a flexible output stage with a constant power characteristic (auto-ranging) and a wide voltage and current range. This device converts the energy from the grid into a regulated DC voltage with high efficiency. The PSI 10750-60 3U US208V is compatible with practically all global mains voltages. The DC voltage and current ratings are determined by the application and the spectrum range. To achieve higher power and current, this unit is equipped with a master-slave bus. This enables up to 64 parallel connected devices to be combined into one system. Such a system works as a single unit and can use different power classes, only the voltage class must remain constant. Furthermore, typical laboratory functionality is provided. This includes an extensive function generator, alarm and warning management, various industrial interfaces, software solutions, and more.

AC Connection

The PSI 10750-60 3U US208V is equipped with an active PFC which provides a high efficiency at a low energy consumption and can be operated in the majority of global grids. It adjusts automatically, without additional configuration, to the available grid voltage.

This 208V model is suited for facilities operating at 208V in which users can test at full rated power in their native 208V environments and eliminate the need for workarounds or derating.

DC Output

The DC output of the PSI 10750-60 3U US208V has flexible output stages (auto-ranging) that provide users with a wide voltage, current, and power range. A wider field of work is possible than with traditional power supplies.

"Auto-ranging" is a term used when a programmable DC power supply automatically offers a wider output and input range of both voltage and current to maintain full power across a wide operation range. This type of solution allows the use of a single unit to address multiple voltage and current combinations.

DC Connection

Connection of the DC output is done via copper blades on the back side of the PSI 10750-60 3U US208V. If a system with higher performance is required, devices can be connected in parallel. With minimal effort, these devices can be linked with the vertical copper rails. A cover is included to protect the contact.

Function Generator

The PSI 10750-60 3U US208V is equipped with a function generator. This allows waveforms such as sine, triangle, square or trapezoid to be simply called up and applied to either the voltage or the current. A ramp function and arbitrary generator allow voltage and current progression to be freely programmable. Test sequences for repeated tests can be saved and reloaded when needed, which saves time. For simulating photovoltaics systems or fuel cells, adaptable tables are provided.

Interfaces

As standard, the PSI 10750-60 3U US208V is fitted with the most important interfaces and ports which are all galvanically isolated from the DC input. There is an analog interface which can be parameterized for input and output, control and monitoring, voltage, current, power and resistance, assorted inputs and outputs, as well as USB and Ethernet ports.

Master-Slave Bus and Share-Bus

When the integrated master-slave bus and share bus are used, a multi device system behaves as a single device. With the master-slave bus, the system data (such as total power and total current) are collected and displayed on the master unit. Warnings and alarms of the slave devices (not included) will also clearly display on the master unit.

Applications

Relay Test Production

Relay manufacturers must carry out assorted tests on their products during production. For these, the coils and contacts are provided with exactly defined voltage and current. For the coil tests, important parameters such as operating, holding and decay current, together with the associated voltages must be checked and documented. For the contacts, not only are the current carrying capability and contact resistance important parameters, but also voltage consistency and disconnect threshold indicate much about the product quality. Testing all of these is best supported by an automatic test system. A part of such a system can be the PSI 10750-60 3U US208V with exact and dynamic controls of voltage, current, power, and resistance that provide optimal values for the best test results. With diverse interface connections, this instrument can be integrated into any test system and deliver the necessary data without the need for additional measuring equipment.

Fuel Cell Simulation

One further application would be the simulation of fuel cells. The PSI 10750-60 3U US208V allows for optimal definition of energy storages as well as components powered by these fuel cells. In every application where reproducible data is required, the use of a simulator is typically the first choice. This is mainly due to the various built-in mechanisms for the protection of connected consumers. The overcurrent protection (OCP) can, like a safety fuse, switch off the output and generate an alarm. The voltage can be monitored and can, if over or under limits, trigger various functions and also generate warnings and alarms. Thus, many integrated functions can be safely performed.

On-Board Charger Test

During an on-board charger test (OBC), the electrical features must be tested under various conditions. This requires a flexible test system which also provides test data. With the sequencing and logging functions of the included EA Power Control software, data can be exported and saved. In this way, applications can instantly generate reproducible test results based on dynamic and highly accurate set point and measurement data. To avoid competition between two separate control loops of the device under test (DUT) and testing device, the voltage regulation speed of PSI 10750-60 3U US208V's bi-directional power supply is adjustable. The three modes of normal, fast, and slow allow the power supply to adapt to the control characteristics of the on-board charger. Due to this power supply only being able to operate as a source, the combination of a sink (not included) may be required.

Solar Array Simulation

The PSI 10750-60 3U US208V programmable power supply is highly suited for use as a test system for PV inverters as it can provide the necessary simulation for solar panels. Users can quickly access simulation models according to EN 50530 or Sandia while it also supports diverse solar panel types. Parameters such as irradiation (varying with shadows), panel technology, and temperature can be implemented. Thus, the PSI 10750-60 3U US208V can test all of the relevant electrical features of a PV inverter, including the efficiency value. The high resolution of 16-bit technology and a high sampling rate enables the power supply to deliver accurate results which can be documented and saved to an Excel file.

*The image is for reference only. See product specification for details.