Contributor – Pooja Khetawat
This project(Automated Water Tank Control with Power Saver and Motor Protection) is being implemented for people ,everywhere in villages and town facing problems regarding motor burn or loss of lot of water due to tank full because mostly of them forgets to turn off the switch. So keeping in mind there problems . This project is based upon the power saving technique i.e , even if we forget to off the motor then it has the facility of automatically stopping the motor , i.e the auto off of motor according to its use we require, depending on the time like for 5 min ,15 min or 20 min . In this project we are using three switches each controlling motor for certain time delay i.e on pressing switch 1 ON it would start motor and automatically OFF it after 5 min .Similarly ,on pressing switch 2 it would start motor for 15 minutes and then auto OFF and likely the third switch for 20 min.
Push button are used here to control time delay for motor .when 1st button is pressed and released motor will work for 5 min and when 2nd button then for other time delay and third for other delay.
Program is fed into the 8051 microcontroller and this acts as input and to this the other device are connected according to required output.
Relays are basically used to control circuit .It consists of 3 parts NO(normally open),NC(normally closed ) And common. When the coil get energized from the supply then common of relay switch to NO from NC.
It is 16 pin IC , an array of seven NPN Darlington pairs. Here we have used it to amplify current and voltage i.e capable of 500mA, 50V output and thus for running motor
In this ac motor is replaced by bulb used in practical. Because ,in Proteus we don’t have ac motor.so in practical use it with your house motor.
In this circuit microcontroller is fed with the program and is connected with 3 button with different time set 5 min,10 min and 15 min and this time can be varied according to size of tank or speed of motor. And then output is given to relay and then to ULN2003A to amplify the current or voltage and then is given to motor.