Paper Details

Form olden days we are using non renewable sources of energy in excess mount for our needs. As thistype of minerals like coal etc are exhausting so we have to depend on the renewable sources of energy like solar, wind,etc. For smaller application it is better to use renewable energy. As this project is based on streetlight automation andrequired Ac supply. So for this particular application we are using solar panels to charge the DC battery and the powerfrom the battery can be used for this application. This project is an innovative solution to operate a machine / motor /liquid pumps for a small duration. If a machine is to be operated for ten minutes, and should be switched off after theduration, it is too difficult and many times we forget to switch it off the system after the prescribed time. This projectprovides the facility of automatic switch off after the requited time duration. This is achieved by using the MCU. Fourpush-to-on switches are connected to one port of the microcontroller. These four switches are to provide four differentfixed time constants.A 16X2 LCD is connected to the microcontroller to display the status of the pump. Contrast of the LCD can adjust byusing a preset which is connected to it.A transistor is used to drive the relay during the active time period. 5V double pole - double through relay is used tocontrol the AC liquid pump. LED indication is provided for visual identification of the relay / load status. A switchingdiode is connected across the relay to neutralize the reverse EMF.

Sharanamma H, Shruthi T.H, Shailashree G.P, Sumathi B, Deepa B, “IMPLEMENTATION OF SOLAR WATER PUMP CONTROLLED WITH FOUR DIFFERENT TIMES FOR POWER SAVING APPLICATIONS”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 5, pp. 869-872, May 2017.