Description
Shows students the working principles and performance of a photovoltaic cell array and battery storage system. It uses a commercially available solar panel made from high efficiency cells. The solar panel is on a wheeled, lightweight frame that allows adjustment of panel angle, relative to the sun. A solarimeter on the frame measures incident radiation. The panel recharges a choice of two batteries through a charge controller. The charge controller recharges the battery at the correct rate of charge without damage to the battery. The frame holds a high performance deep cycling battery in a storage box. The equipment also includes a second lower rated battery. This allows students to examine the charge and discharge cycle of the system in a typical laboratory session. A control module contains the charge controller. The control module has digital displays and shows the panel and battery storage performance. It has indicators to show when the charge controller is in float mode and load cut mode. It also has two power outputs. Output 1 allows direct connection of external loads to the solar array, for direct load experiments. Output 2 allows connection through the charge controller to show how it works with a load and a battery. A separate loading unit includes: • A variable resistive load to show battery performance. • An inverter to show practical conversion to AC voltages. • Four switchable lamps to show a practical application. The equipment works with Versatile Data Acquisition System (not included). it allows accurate real-time data capture, monitoring, display, calculation and charting of all the important readings on a computer (computer not supplied).
Learning Outcomes
Performance of the solar panel
Demonstration of float mode
Demonstration of load cut
Specifications
- ATICO is committed to a programme of continuous improvement; hence we reserve the right to alter the design and product specification without prior notice.
- Nett dimensions and weights:
Control module: 600 mm wide x 350 mm high x 180 mm depth and 11 kg
Loading module: 600 mm wide x 350 mm high x 180 mm depth and 13 kg
Main unit: height (when elevated) 950 mm (when folded down for transport) 400 mm length 1300 mm x width 730 mm and 60 kg - Total packed dimensions and weight:
1.1 m3 and 130 kg - Solar panel Power Rating:
Nominal peak power 40 W - Batteries:
• 12 V, 70 Ah (nominal)
• 12 V, 1.2 Ah (nominal) - Loading module:
Four 12 V lamps, 3 to 50 W variable resistor, 100 W inverter (RCD protected)
Operating Conditions
- Operating environment:
Laboratory - Storage temperature range:
–25°C to +55°C (when packed for transport) - Operating temperature range:
+5°C to +40°C - Operating relative humidity range:
80% at temperatures < 31°C decreasing linearly to 50% at 40°C
