EFT-900

Solar photovoltaic training devices

Simulates an autonomous photovoltaic system with real and educational components

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Description

This trainer implements a low Eproduction photovoltaic installation. Allows the analysis and study of the elements
and components production, storage and transformation of energy. The system includes:

A training panel with all the elements that take part in electric energy transformation process.
Solar panel.
Battery on training support and with battery charging circuit.
LabView virtual instrumentation software application.
Includes a data acquisition system for measuring solar radiance, temperature and electric variables (voltage, current and power) at the different points of the circuit from a PC.

EFT-900 photovoltaic training panel

Ref.: 9EQEFTAVZZ

With main solar photovoltaic installation components: solar controller, AC/DC inverter and consumables.

Solar controller characteristics:

Battery charge controller with micro processor.
Connections to photovoltaic panel and to battery training module.
Digital display showing:
- Battery voltage.
- Charging current and 12VDC consumption current.
- Button-selectable.
Two 12VDC lamp holders.
Bridges for connection and disconnection of circuit components.
Load resistor for solar panel testing.

Inverter characteristics:

AC/DC converter: 12VDC input. 220V 50Hz output.
Output power: 150W (300W peak).
Schuko socket for external charging.
Two 220VAC lamp holders.
Bridges for connection/disconnection of circuit components.
Load resistor for testing the AC/DC converter included with the accessories

EFT-901 battery training module with charging circuit

For connection to the EFT-900 photovoltaic training panel.
The module has a battery charging system using mains voltage.
Includes protective fuse. The battery is powered whether or not the charging circuit is functioning.

Accessories and manuals

Two 12V lamps, two 220V lamps, one variable load resistor, a set of cables and safety connection bridges.
User manual and practical manual (on CD-ROM).

LabVIEW virtual instrumentation application

The photovoltaic training devices with virtual instrumentation include a data acquisition system and an application developed in LabView enabling monitoring of the photovoltaic system’s main variables via PC and different types of testing to be performed, and control of the installation from the PC.

The application includes the following functions:

“Activities” windows: The activities windows help the students to carry out the exercises in the training device practical manual. When the student accesses a specific activity, the diagram of this activity is shown with its associated virtual instrumentation. Also, the training device is configured automatically via the internal relays, as shown in the diagram.

“Measurements” windows: For measuring variables in the different components or points on the circuit. The variables are presented in numerical and graphic form. Measurements on solar panel, battery, 12V charge and inverter.

“Control” window: For controlling the training device’s internal relays via virtual buttons for opening and closing the different points of the circuit. For configuring the training panel from the PC, according to the particular test to be performed.

“Tests” windows: For performing testing and obtaining characteristic curves (e.g. I-V curve for the solar panel). They include configuration functions for the signals to be received and testing times, results analysis functions, exporting data, printing and saving images, creating X-Y graphs, etc.

“Monitors” window: This window shows the electrical variables at the different points of the circuit (voltage, current and power) on a single screen, together with the irradiance and temperature on the photovoltaic panel.

Optional accesories (not included in standard version)

Solar photovoltaic panel with fixed support and collectors

Ref.: 9EQMFTBA02

Number of cells in series: 36. Power: 40W.
Current at maximum power (Imp) = 2.10A.
Voltage at maximum power (Vmp)= 16.80V.
Short-circuit current (Isc): 2.35A. Open circuit current (Voc): 20.55V.
Blocking diode.
Dimensions: 637 x 527 x 35 mm.
Support for external and internal assembly of panel, with adjustable tilt.
Irradiance and temperature collector.

Solar photovoltaic panel with wheeled support and collectors

Ref.: 9EQMFTAV02

Number of cells in series: 36. Power: 40W.
Current at maximum power (Imp) = 2.10A.
Voltage at maximum power (Vmp)= 16.80V.
Short-circuit current (Isc): 2.35A.
Open circuit current (Voc): 20.55V.
Blocking diode.
Dimensions: 637 x 527 x 35 mm.
Support with castors for easy transportation.
Adjustable tilt, with graduated scale.
Irradiance and temperature collector.

Floodlight accessory for wheeled support

Ref.: ACCFOCAV6Z

Two halogen floodlights, 500W (lighting) and 400W (electric) each one (efficiency class C).
Rotating mast with graduated scale for measuring the angle of incidence.
Rotatable, height-adjustable, and floodlight tilt can be adjusted with respect to the solar panel.
Light intensity can be varied via a 1000W electronic controller.