1. CLEAR VISION SOUND STRATEGIES SOLID PERFORMANCE
DC Electronic Load - PV function
Guide
For more info please contact:
Electronic Enterprises (INDIA) Pvt Ltd
rsuman@eeipl.in
1

2. 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

3. Application in Solar Panal
P-V curve (valid ONLY in PV mode)

4. PV function operation
Interface selection
Access Control Panel
For Solar PV testing, please use
PV Mode

5. PV function operation
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

6. 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

7. PV function operation
• 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

8. PV function operation
• 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.
Description of I-V Graph
Vmax - 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 color
I - cursor values of right Y axis for
measured current in green color
I-V Curve data

9. PV function operation
• 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(%)

10. PV function operation
• 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.