Overhead 3 phase transmission line fault detection

Project Title

Overhead 3 phase transmission line fault detection

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

The overhead transmission line, which often has varieties of small or large disturbances is highly susceptible to interference and it is necessary for fault detection. Fault detection must be able to quickly determine the location of interference as well as to classify type of fault quickly to stabilize the electric power system. Particle Swarm Optimization (PSO) is able to detect interference very quickly and with good accuracy. Hence it is used in this study

Project Objectives

To design an efficient impedance-based and robust automatic fault detection and location system for overhead power transmission lines.

To reduce response time needed to rectify and save expensive transformers from damage or theft which usually occures during longer power outages.

To increase productivity of technical crews since the time needed to locate faults will be minimised.

To ensure stability and reliability of the power supply system in the country to boost economic growth.

Project Implementation Method

The three phase parameter voltage, current, temperature senses by respective sensing relays. Once the fault occurred in transmission line, voltage and current values varies from the nominal ranges.

This values continuously send to the ADC (analog to digital converter), ADC convert this analog values into digital values which is required to the microcontroller, microcontroller takes digital values from ADC and compare with reference values. If the real time values are not identical to the reference values then microcontroller show in LCD, which indicate that the fault occurred in the system [3] [4].

Benefits of the Project

[1] E. O. Schweitzer, III, “New developments in distance relay polarization and fault-       type selection,” in Proc. 16th Annu. Western Protective Relay Conference, Spokane, WA, Oct. 24–26, 1989.

[2]

IJARI

A Yadav, A Swetapadma. Fault Analysis in Three phase Transmission lines Using K-    Nearest Neighbor Algorithm,AECC (ICAECC), 2014, 1-5.

[3] Gray Nicholas, ABCs of ADC Analog to Digital Converter Basics.

[4] Microcontroller based Fault Detector, International Journal of Advancements in Research & Technology, IJOART Technical Research Paper, Volume 1, Issue 5, October-2012 1 ISSN 2278-7763.

[5] Zhengyou He, Ling Fu Sheng Lin Zhigian Bo, 2010 Fault Detection and Classification in EHV Transmissioan Line Based Wavelet singular on Entropy, IEEE Transaction on Power Delivery, Vol 20, No 4.

[6] T. Adu, “An accurate fault classification technique for power system monitoring devices,” IEEE Trans.Power Del., vol. 17, no. 3, pp. 684–690, Jul. 2002.

 

IJARI

Technical Details of Final Deliverable

1. 1. Types of fault in Overhead transmission lines

There are mainly three types namely line to ground (L-G), line to line (L-L) and double line to ground (LL-G) faults. Line to ground fault (L-G) is most common fault and 65-70 percent of faults are of this type [1].

1. 1. Line to Line Fault

Line to line fault is a short circuit between lines caused by ionization of air or when lines comes into physical contact.

1. 1. Line to Ground Fault

Line to ground fault on a transmission line occurs when one conductor drop to the ground or comes in contact with the neutral conductor.

1. 1. Double line to Ground Fault

Double line to ground fault occurs when the two lines contact with each other along with the ground. The probability of such types of faults is nearly 10%.

Final Deliverable of the Project Hardware SystemCore Industry EducationOther Industries Others Core Technology OthersOther Technologies Internet of Things (IoT)Sustainable Development Goals Quality EducationRequired Resources

Elapsed time in (days or weeks or month or quarter) since start of the project	Milestone	Deliverable
Month 1	project studay	project studay
Month 2	working software	working software
Month 3	make a project on software	make a project on software
Month 4	make a project hardform	make a project hardform
Month 5	project report complet	project report complet