Page 53 - CITS - Electrician - Trade Practical

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ELECTRICIAN - CITS

TASK 2 : Series and parallel connection of Solar cells / PV modules and testing
1 Make the series connection of solar cells / PV modules by solar connector cables with proper polarity as per
circuit diagram.
2 Connect the PV module output to the potentiometer/ load rheostat.
3 Properly place the series connected solar PV modules exactly below the solar spot light.
4 Keep the knob of potentiometer at maximum resistance position.
5 Switch ON the solar spot light and set the radiation level approximately 100 w/m 2

6 Record the readings of open circuit voltage & current in voltmeter and ammeter.
7 Slowly reduce the potentiometer resistance step by step and record the voltage & current in each step
8 Reduce the potentiometer resistance in steps until voltmeter & ammeter reading shows
V = 0 and I = Maximum (I )
Sc
9 Repeat the steps 4 to 8 for different radiation levels (150 w/m , 200 w/m ) and take the readings.
2
2
10 Repeat the same procedure for parallel connection of solar PV modules.
11 Tabulate the voltage & current readings and calculate the power.
12 Switch OFF the solar spot light and disconnect the PV modules & circuit.
Tabular column
Series connection

Voltage Current Power
S.No Radiation
(V ) ( ) (W)
OC
SC

Parallel connection

Voltage Current Power
S.No Radiation
(V ) ( ) (W)
SC
OC

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CITS : Power - Electrician & Wireman - Exercise 19