Solar panel testing for durability, life time & performance

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DC Electronic Load - PV function Guide

For more info please contact:

Electronic Enterprises (INDIA) Pvt Ltd

[email protected]

Amrel Load Application

Battery/Energy storage/Ultracapacitor Testing and Validation

Fuel Cell Durability ,Life time and Performance Charaterazation

Solar Panel Durability, Life time and Performance Charaterazation

Industrial Application : Power source , UPS testing

Application in Solar Panal

P-V curve (valid ONLY in PV mode)

PV function operation

Access Control Panel

For Solar PV testing, please use PV Mode

Interface selection


Entering specified values in Start (Voltage), Stop (Voltage), Step (1mV ~ Vmax range), and Time (100ms ~ 60s range) control fields

Press Sweep button to launch sweep. While sweep is in operation, a message box will show sweep state at the center of Window, until a pop-up box notify sweep operation is done successfully or has failed

PV function operation• system automatically start data capture

operation to retrieve sampled data from devices, and accordingly captured data will be prompted to save into hard drive in .csv file format, where data capture can be done by pressing button.

Two additional features for the PV Sweep Function: Input Off: eLOAD will not operate at max power point Input On: eLOAD will operate at max power point Panel Load: eLOAD will resume back to normal operation Panel Sweep: eLOAD will show P-V Sweep display


• Analysis by Graph• Captured data can be analyzed by pressing button. • The analyze function will provide 2 choices for data display:

• 1) Data from File (Yes): This will load previous test data stored on the PC hard drive

• 2) Data from Buffer (No): This will load the current data stored in the PC Buffer


• The P-V Sweep data will be presented on the P-V curve and I-V Sweep Data on the I-V Curve. Please disregard the I-V Curve data, which is used

for other applications.

I-V Curve data

Description of I-V GraphVmax - maximum measured voltage.(@ at the right is its value of X axis)Vmin - minimum measured voltage.(@ at the right is its value of X axis)Imax - maximum measured current.(@ at the right is its value of X axis)Imin - minimum measured current .(@ at the right is its value of X axis)V - cursor values of left Y axis for measured voltage in bule colorI - cursor values of right Y axis for measured current in green color


• Description of P-V Graph• The meanings for fields at the bottom of graph,• Imax - maximum measured current.(@ at the right is

its value of X axis)• Imin - minimum measured current.(@ at the right is

its value of X axis)• Pmax - maximum measured power.(@ at the right is

its value of X axis)• Pmin - minimum measured power.(@ at the right is

its value of X axis)• I - cursor values of left Y axis for measured current

in blue color• P - cursor values of right Y axis for measured power

in green color• The meanings for fields at the right side of graph,• Voc - open-circuit measured voltage.• Isc - short-circuit measured current.• Vmp – measured voltage at maximun power.• Imp – measured current at maximum power.• Pm – measured maximum power.• FF – fill factor(%)


• Profile Load & Save• Proofed test cases can be saved to disk

as a ,ini file for repeatedly accessing, which will backup/restore all parameters in Control Panel. Refer to File->Profile menu shown below.

• Description of Meter• We can monitor device status by the

measured voltage, measured current, and measured temperature shown on meter panel (see below), when we check bullet of meter.

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Solar panel testing for durability, life time & performance