Automatic phase sequence corrections and protection device

Project Title

Automatic phase sequence corrections and protection device

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

Automatic phase correction and protection devices

Due to power fluctuation and load shedding we face alot of challenges in automation and industries. Resulting phase failure, phase sequence change over and under voltage conditions, for solving these issues in electrical system we don’t have any equipment which resolve all these problems at a time. moreover we have to installed different types of devices to resolve these issues individually or sometimes we need to change the phase sequence from the terminal manually which is very risky on live supply and time consuming as well, it also damage equipment and effect productivity.

This project aims to build a system that monitors voltage and provides a breakpoint based low and high voltage,phase sequence,automatic phase sequence channge over and circuit breaker of equipment  tripping mechanism that avoids any damage to the load. Various industrial and domestic systems consist of fluctuation in the AC mains supply. There is a chance of damaging electronic devices that are quite sensitive to these fluctuations. So there needs to be a tripping system that avoids any damage to these loads.
Our system consists of a tripping mechanism that monitors the input voltage and trips according to limits provides. Here we use a quad comparator IC with two more comparators to be used as window comparators to it. Well the system delivers an error as soon as the input voltage falls out of the window range. This trigger then operates a relay that cuts off the load to avoid any damage to it. We here use a lamp to demonstrate as a load. Well the system is also configured with an alarm that goes on as soon as tripping takes place.

So we decide to make an electrical circuit which solve these issue at once and protect multiple equipments i.e.

• Over-/under voltage monitoring
• Phase failure detection
• Phase unbalance monitoring
•  Phase sequence monitoring
• True RMS measuring principle
• Automatic phase sequence change over
• Tripping the equipment main circuit to any above fault.

Project Objectives

1. Phase sequence
2. Phase sequence selector
3. Failure phase detection
4. Asymmetry under/over voltage
5. Breaker /Equipment protection
6. Tripping Mechanism
7. Phase sequence correction
8. equipment protection

Project Implementation Method

Hardware base

Benefits of the Project

1.less equipment losesse

2.user frindly

3.past switching

4.monitring

5.easy controling our equipment for runing condition

6.monitring electric faults

1. Phase sequence
2. Failure phase detection
3. Asymmetry under/over voltage
4. Breaker /Equipment protection
5. Tripping Mechanism
6. Phase sequence correction

Technical Details of Final Deliverable

• Over-/under voltage monitoring
• Phase failure detection
• Phase unbalance monitoring
•  Phase sequence monitoring
• True RMS measuring principle
• Automatic phase sequence change over
• Tripping the equipment main circuit to any above fault.

Final Deliverable of the Project Hardware SystemCore Industry OthersOther Industries Education Core Technology OthersOther TechnologiesSustainable Development Goals Partnerships to achieve the GoalRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	33200
auto breaker	Equipment	2	10000	20000
shunt coil	Equipment	2	1500	3000
220v relay	Equipment	3	500	1500
sequence relay	Equipment	1	3000	3000
mccb breaker 30A	Equipment	1	1500	1500
power supply for switching	Equipment	1	1500	1500
indication lights	Equipment	8	150	1200
circuit box	Equipment	1	1500	1500