EA Elektro Automatik PSI 9750-20 3U, 750V, 20A, 5000W alimentatore da laboratorio

Discontinued model, click here to view the new series

EA-PSI 9000 3U 3.3 KW - 150 KW HEAVY DUTY LABORATORY DC POWER SUPPLIES

- Multi-phase input 340...460 VAC
- High efficiency up to 95,5%
- Output power ratings: 0...3.3 kW, 0...5 kW, 0...6.6 kW, 0...10 kW, 0...15 kW, expandable up to 150 kW
- Output voltages: 0...40 V up to 0...1500 V
- Output currents: 0...30 A up to 0...510 A
   •Expandable up to 0...5100 A
- Flexible, power regulated output stage
- Various protection circuits (OVP, OCP, OPP, OTP)
- Intuitive TFT touch panel with display for values, status and notifications
- Remote sensing with automatic detection h Galvanically isolated, analog interface with
   • U / I / P programmable via 0...10 V or 0...5 V
   • U / I monitoring via 0...10 V or 0...5 V
- Integrated true function generator
- Photovoltaic array simulation
- Internal resistance simulation and regulation h Temperature controlled fans for cooling
- 40 V models according to SELV (EN 60950)
- USB port integrated
- EMC TÜV approved for IEC 61000-6-2:2006 Class B h Optional, digital interface modules or alternatively installed IEEE/GPIB port
- SCPI command language supported

General
The microprocessor controlled high efficiency laboratory power supplies of series EA-PSI 9000 3U offer multiple functions and features in their standard version. User-friendly, interactive menu navigation makes the use of this equipment remarkably easy and most effective.
User and process profiles can be edited, saved and archived so that the reproducibility of a test or other application is improved.
In order to achieve even higher output power, cabinets with up to 150 kW and up to 42U size can be configured to suit the user‘s requirements.

Power
All models are equipped with a flexible auto-ranging output stage which provides a higher output voltage at lower output current, or a higher output current at lower output voltage, always limited to the max. nominal output power. The power set value is adjustable with these models. Therefore, a wide range of applications can already be covered by the use of just one single unit.

Input
The device are equipped with an active Power Factor Correction circuit and are designed for a usage on a three-phase supply with 340 V - 460 V AC. Alternatively, models with 15 kW or cabinets based on these models can be delivered with input range 588...796 V AC (plus central point) upon request.

DC output
DC output voltages between 0...40 V and 0...1500 V, output currents between 0...40 A and 0...510 A and output power rat- ings of 0...3.3 kW, 0...5 kW, 0...6.6 kW, 0...10 kW or 0...15 kW are available. The output terminal is located on the rear panel.

Protective features
For protection of the equipment connected, it is possible to set an overvoltage protection threshold (OVP), as well as one for overcurrent (OCP) and overpower (OPP).
As soon as one of these thresholds is reached for any reason, the DC output will be immediately shut off and a status signal will be generated on the display and via the interfaces.
There is furthermore an overtemperature protection, which will shut off the DC output if the device overheats.

Remote sensing
The standard sensing input can be connected directly to the load in order to compensate voltage drops along the power cables up to a certain level. If the sensing input is connected to the load, the power supply will adjust the output voltage automatically to make ensure the accurate required voltage is available at the load.

Display and controls
Set values and actual values of output voltage, output current and output power are clearly represented on the graphic display. The LC display is touch sensitive and can be intuitively used to control all functions of the device with just a finger.
Set values of voltage, current, power or resistance (internal resistance simulation) can be adjusted using the rotary knobs or entered directly via a numeric pad.
To prevent unintentional operations, all operation controls can be locked.



Analog interface
There is a galvanically isolated analog interface terminal, located on the rear of the device. It offers analog inputs to set voltage, current and power from 0...100% through control voltages of 0 V...10 V or 0 V...5 V.
To monitor the output voltage and current, there are analog outputs with voltage ranges of 0 V...10 V or 0 V...5 V. Also, several inputs and outputs are available for controlling and moni- toring the device status.

Function generator
All models within this series include a true function generator which can generate typical functions, as displayed in the figure below, and apply them to either the output voltage or the output current. The generator can be completely configured and controlled by using the touch panel on the front of the device, or by remote control via one of the digital interfaces.
The predefined functions offer all necessary parameters to the user, such as Y offset, time / frequency or amplitude, for full configuration ability.



Additionally to the standard functions, which are all based upon a so-called arbitrary generator, this base generator is accessible for the creation and execution of complex sets of functions, separated into up to 100 sequences. Those can be used for testing purposes in development and production.
The sequences can be loaded from and saved to a standard USB flash drive via the USB port on the front panel, making it easy to change between different test sequences.
The figure below shows a fictional example of a complex function of 40 sequences, as it can be realised with the arbitrary generator. The function can be created on the device or externally and then loaded or saved:



There is furthermore a XY generator, which is used to generate other functions like UI or IU, which are defined by the user in form of tables (CSV file) and then loaded from USB drive.
For photovoltaics related tests, a PV curve can be gen- erated and used from user-adjustable key parameters. Even more characteristics can be installed for user selection by applying future firmware updates.

Extensibility
The singles units can be combined into various con- figurations upon request, also in cabinets of up to 42U, in order to build systems of up to 150 kW total power. Parallel connection is the standard connection mode and there will be totals formation of power, voltage and current on the main unit, by using the standard built-in master-slave bus. Series connection is also possible up to a certain voltage.

Supervision features
All models offer supervision features for voltage and current steps. The supervision is configurable to monitor voltage or current over- and undershooting. As a reaction, the device can generate a notification of selectable type:
- Signals are displayed only; even if the fault is still active, with- out affecting the output.
- Warnings remain active and must be acknowledged after the fault is removed.
- Alarms will shut off the output instantly and can also be sig- nalled acoustically.

Options
• Digital interface modules for RS232, CANopen, Modbus TCP, Profibus, Profinet/IO, Devicenet or Ethernet. The interface slot is located on the rear panel (standard models only), making it easy for the user to plug in a new interface or to replace an existing one. The interface will be automatically detected by the device and requires no or only little configuration. See page 130.
• Three-way interface (3W) with a rigid GPIB port installed instead of the default slot for retrofittable interface modules
• High Speed ramping (see page 152) *
• Water Cooling **

* Not available for all voltages - please quote for availability
** Generally available for models up to 200 V, for other models upon request