• K.V.KISHORE
• U. NARESH BABU
• Dr.G. Sreenivasulu

In present days, most of the equipment's are automated. So, the present system is designed in such a way that the automatic water filling as well as protection is provided for 3- ø Induction motor. The proposed system trips the total circuit when the water level in the tank is maximum. The motor is turned on when the water level in the tank is minimum or low level. Due to this water filling and protection of the motor will be operated automatically. Also, indicators are used to indicate water level in the tank. It can be operated easily, safely and it is a cost effective. This project helps in protecting the motor and reduces the wastage of power and water. It can also be further extended as per one’s requirement. The main advantage of this water level controller circuit is that it can automatically control the water pump without any user interaction. The pump is not allowed to start when the water in the sump tank is low. Whenever the water level decrease below or exceed the prescribed level the motor will be switched ON/OFF, thereby controlling the water level efficiently. The induction motor is protected from the faults like over voltage or under voltages, any unbalanced voltage from the supply.

"LOW COST AUTOMATIC WATER LEVEL CONTROLLER WITH PROTECTION FOR ENERGY AND WATER SAVING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.1134-1139, July-2018, Available :http://www.jetir.org/papers/JETIRC006195.pdf

"LOW COST AUTOMATIC WATER LEVEL CONTROLLER WITH PROTECTION FOR ENERGY AND WATER SAVING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp1134-1139, July-2018, Available at : http://www.jetir.org/papers/JETIRC006195.pdf