A Superimposed Component Based Fault Detector Technique for Power Transmission Line Protection
D. Umamaheswari1, N. Srinivasu2
1D. Umamaheswari, Department of Electrical & Electronic Engineering, Sagi Rama Krishnam Raju Engineering College, Bhimavaram (Andhra Pradesh), India.
2N. Srinivasu, Department of Electrical & Electronic Engineering, Sagi Rama Krishnam Raju Engineering College, Bhimavaram (Andhra Pradesh), India.
Manuscript received on 11 May 2019 | Revised Manuscript received on 05 June 2019 | Manuscript Published on 15 June 2019 | PP: 112-117 | Volume-8 Issue-1S3 June 2019 | Retrieval Number: A10210681S319/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Fault occurrence on a transmission line is more predominant as compared to other power system equipment because transmission line is exposed to open atmosphere. To protect transmission line from faults first we have to detect the fault. This paper presents a superimposed component based fault detector for the transmission line protection. When there is a fault in the power system network, this fault detector uses a superimposed current value. The proposed algorithm provides proper discrimination between normal state and abnormal state even in the presence of disturbance and harmonics in the current signal. This method is very simple to implement and accurate. It is tested for various cases like different fault locations, different fault resistances, different kinds of faults, differenttimes of fault inceptionand comparative assessment with conventional techniques is carried out, which clearly shows the effectiveness and accuracy of proposed technique.
Keywords: Fault Detection, Fault Inception Time, Fault Resistance, Superimposed Component, Protection of Transmission Line.
Scope of the Article: Wireless Power Transmission