Elektro-Automatik EA-PS 10080-170 3U – Lab Power Supply (80 V / 170 A / 5000 W)

• Voltage: 0 – 80 V
• Current: 0 – 170 A
• Power: 0 – 5000 W
• Wide range input, 208 V – 480 V +10 % 3ph AC
• Flexible power-regulated DC output stages (autoranging)

The DC laboratory power supplies in the PS 10000 series from EA Elektro-Automatik convert the energy from the grid into a regulated DC voltage with an efficiency of over 96%. The PS 10000 series includes single and three-phase units, which, together with the wide input range, allow use with practically all international mains voltages. The application directs the DC voltage and current; the spectrum ranges from 0 – 60 V to 0 – 2000 V and from 0 – 6 A up to 0 – 1000 A in a single device. The DC supply operates as a flexible output stage with a constant power characteristic (autoranging) and a wide voltage, current, and power range. To achieve higher power and wind, all units are equipped with a master-slave bus. This enables up to 64 parallel connected devices to be combined into one system, providing up to 1920 W and 64000 A. Such a system works as a single unit and can use different power classes; only the voltage class must remain constant. This way, a user can construct a 75 kW system from two 30 kW and one 15 kW device from the PS 10000 range. Furthermore, typical laboratory functionality is provided. This includes an extensive function generator, alarm and warning management, various interfaces and ports, software solutions, and many more functions.

AC Connection

The DC power supplies in the PS 10000 series are equipped with an active PFC, providing high efficiency and low energy consumption. Furthermore, the devices in this series offer a wide input voltage range. This extends from 1-phase 110/120 V up to 240 V AC mains supply and 3-phase 208 V to 380 V, 400 V, and 480 V AC mains supply. The devices can be operated in the majority of the global mains supply. They adjust automatically, without additional configuration, to the available pool. The output power is derived in a 110/120 V and 208 V AC grid.

DC Output

The output of the power supply PS 10000 with a DC voltage of 0 – 60 V up to 0 – 2000 V allows currents of 0 – 6 A up to 0 – 1000 A. The flexible output stages (autoranging) provide the user with a wide voltage, current, and power range and hence a wider field of working than traditional power supplies.

DC Connection

The connection of the DC output is via a copper rail on the back side of the device. The devices are connected in parallel if a system with higher performance is required. With minimal effort, devices can be linked with vertical copper rails. A cover for contact protection is provided.

“Autoranging“ is when a programmable DC Power Supply automatically offers a wide output range of voltage and current to maintain full power across a wide operation range. This solution allows a single unit to address multiple voltage and current combinations.

Interfaces

Standard EA devices have the most important digital and analog interfaces and galvanically isolated ports. These include an analog interface which can be parameterized for input and output, control and monitoring, of 0 – 5 V or 0 – 10 V for voltage, current, power, and resistance, various inputs and outputs, and USB and ethernet ports.

High-performance systems

High-power applications can be covered with high-power systems of up to 1920 kW. These are achieved by using the outputs of many PS 10000 devices, changing the copper rails to vertical, and connecting in parallel. Thus, a 19” cabinet with 42 U can provide a system with 240 kW occupying a 0.6 m² floorspace. The master/slave bus enables up to 8 cabinets with a maximum of 64 units of 30 kW each to behave as one unit.

Master-Slave-Bus and Share-Bus

A multi-device system behaves as a single device if the integral master-slave bus and share bus is used. The master-slave bus and the shared bus are connected to each device. With the master-slave bus, system data such as total power and current are collected and shown in the controller device. Warnings and alarms of the agent devices are shown clearly on display. The shared bus provides an equal load distribution to the individual instruments.

Relay test in the production

Relay manufacturers must carry out various tests on their products during production. The coils and contacts are provided with precisely defined voltage and current. For the coil tests, essential parameters, such as operating, holding, decay current, and the associated voltages, must be checked and documented. The current carrying capability and contact resistance are essential parameters for the contacts, and voltage consistency and disconnect threshold indicate much about the product quality. Testing all these is best supported by an automatic test system. A part of such a system can be the devices of the PS 10000 series with their exact, dynamic, voltage, current, power, and resistance controls, providing optimal values for the best test results. With their diverse interface connections, they can be integrated into any test system and deliver the necessary data without the need for additional measuring equipment.

On-board charger test

In an onboard charger test (OBC), the electrical features must be tested under various conditions. This requires a flexible test system that also provides test data. The sequencing and logging functions of the PS 10000 devices and test procedures allow data to be exported and saved. This way, applications can promptly 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 the test device, the control frequency of the power supply is adjustable. The modes Normal, Fast and Slow allow the PS 10000 devices to match the control characteristics of the onboard charger.