HVS-4276. DIFFERENTIAL RELAY THEFT DETECTION IN TRANSMISSION LINE.

₹7,500.00

This project proposes a novel approach to detect theft in transmission lines using differential relay technology.

Category EEE Tags 2 CT, BULB, Relay

This project proposes a novel approach to detect theft in transmission lines using differential relay technology. The system utilizes two transformers and two potential dividers to monitor the voltage difference between the input and output of the transmission line.230V power supply is given to the rectifier, as we know rectifier converts AC to DC, it converts ac into 5v of dc. That 5v dc is given to the comparator board. Additionally, two transformers output is given to the potential divider, through the potential divider we give input to the comparator board. Comparator board will compare the two voltages, in normal position the two voltages will same, if load occurs in this line there will be differences in voltages, this comparator board will give a single to the relay, the relay will get switched off the supply of the load. A differential relay is employed to detect any abnormal voltage difference, which could indicate theft. In the event of theft, an AC load is connected to the line to create a voltage drop, and a rectifier with a power cable is used to power a bulb as a visual indicator of theft. This system offers a reliable and effective method for detecting theft in transmission lines, ensuring the integrity and security of the power distribution network.

Objectives

To design and develop a transmission line theft detection system using differential relay technology.
To monitor the input and output voltages of the transmission line using two transformers and two potential divider circuits.
To convert the 230 V AC supply into a regulated 5 V DC supply using a rectifier and voltage regulation circuit for the comparator board.
To compare the input and output voltage signals using a comparator circuit to identify abnormal voltage variations.
To detect possible electricity theft by identifying voltage differences caused by unauthorized load connections.
To activate a relay when an abnormal voltage difference is detected and disconnect the load supply.
To provide a visual indication of theft detection using a bulb or suitable indicator.
To improve the reliability and security of the power distribution network by detecting unauthorized power usage.
To develop a simple, cost-effective prototype for demonstrating transmission line theft detection.