Load Protection using PLC with SCADA Interface

Project Title

Load Protection using PLC with SCADA Interface

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

Overvoltage and undervoltage are quality problems, they happen due to many reasons. The effects of overvoltage and undervoltage can be severe and can cause insulation failure in case of overvoltage and overheating and burning of motors coils in case of undervoltage.

To solve the problem a tripping mechanism is designed to disconnect the load when subjected to overvoltage, undervoltage. The design is first simulated in a virtual environment using a simulation program, and then a hardware design is made according to the simulated circuit. . The circuits responded effectively to voltage variations whether it’s under or over voltage in case of single phase circuit, The SCADA(Supervisory Control and Data Acquisition) shows the operation status of the system whether it is operating normally or under faulted condition. 

Project Objectives

To develop a tripping mechanism to protect the load from over voltage and under voltage in general. 

To provide protection to equipments and avoid their failure due to abnormal conditions.

This system provides protection for industrial,commercial and residential equipments.

Project Implementation Method

Circuit simulation program is used to test the equipments to be used in a virtual environment; the program is Proteus 8 Professional. 

Then a simple single phase prototype is built to stimulate the results in real time environment.

Benefits of the Project

Increased accuracy of the volatge sensing devices.

Very well developed for the industrial based systems.

Tripping mechanism will save the other devices from turning off hence inturepting the output product.

Can be altered for both single phase and three phase systems.

Better mapping of the appliances.

View is clear and will show wherre the error occurs.

Technical Details of Final Deliverable

The device will protect the appliances from over voltage, undervoltage and short circuit. Ultimately saving the appliances from damage.

Following are the components used:

PLC S7 200

ADC

Transformer

Relay

Potentiometer

Final Deliverable of the Project HW/SW integrated systemCore Industry SecurityOther IndustriesCore Technology Shared EconomyOther TechnologiesSustainable Development Goals Decent Work and Economic GrowthRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	67000
PLC S7 200	Equipment	1	25000	25000
ADC	Equipment	1	5000	5000
Transformer	Equipment	3	10000	30000
Relay	Equipment	2	1000	2000
Potentiometer	Equipment	2	500	1000
Delivering of components	Miscellaneous	1	4000	4000