Solar pumping system and a method for operating solar pumping system

A solar pumping system comprising:

• a plurality of solar modules connected only in series;
• a Variable Frequency Drive (VFD) for converting DC power into AC power;
• at least one switching device having a circuit arrangement connected between the solar modules and the VFD for dividing voltage output of the solar modules to a predetermined percent of the full voltage by selectively allowing flow of current to pass through the circuit arrangement based on a required voltage output;
• at least one AC motor connected to the output supply of the VFD;
• and
• said VFD comprises a controller which instructs the switching device to control the output voltage of the solar modules by increasing or decreasing the voltage for a predetermined fraction of time in accordance with the load requirements in order to avoid the tripping;
• wherein the switching device is operated to decrease the voltage output to the predetermined percent of the full voltage by alternating the route of the current through the circuit arrangement in the beginning and when the system gets fully loaded, the switching device is operated to allow flow of the current via the circuit arrangement to utilize the full voltage to run the AC motor without tripping.