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Earthing Transformer to Support the Normal Operation of the Power System at Failure of a Protection System

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2018
Yousuf Mohammad Younes, Abdul Ghani A. A

Yousuf Mohammad Younes and Abdul Ghani A A. Earthing Transformer to Support the Normal Operation of the Power System at Failure of a Protection System. International Journal of Computer Applications 182(31):1-6, December 2018. BibTeX

	author = {Yousuf Mohammad Younes and Abdul Ghani A. A},
	title = {Earthing Transformer to Support the Normal Operation of the Power System at Failure of a Protection System},
	journal = {International Journal of Computer Applications},
	issue_date = {December 2018},
	volume = {182},
	number = {31},
	month = {Dec},
	year = {2018},
	issn = {0975-8887},
	pages = {1-6},
	numpages = {6},
	url = {},
	doi = {10.5120/ijca2018918222},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


This paper dealt with possible type of contingencies which occurred in several power systems in the world which related to maloperation of a protection system for a line or a transformer and their consequences related to overloading another branches and hence, lead to cascading outages. To minimize the fault level and prevent the cascading outages and hence , prevent partial (brownout) or complete (blackout) collapse of the system an earthing (grounding) transformer is used on both sides of the faulted line .This suggested solution to able the system to be a secure system against maloperation of a protective system.This paper offers the simulation results of the IEEE 14 Bus system which represented in MATLAB at off line security analysis.


  1. Pudi Sekhar, January, 2016. “Assessment and Enhancement of Power System Security using Soft Computing and Data Mining Approaches” Ph.D. Thesis, National Institute of Technology Rourkela.
  2. S. Ravindra, V. C. Veera Reddy and S. Sivanagaraju, January 2015. “Power System Severity Analysis under Generator Outage Condition”, International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, Vol. 4, Issue 1.
  3. Kip Morison, Lei Wang, and Prabha Kundur, October 2004. “Power System Security Assessment”, IEEE power and energy magazine.
  4. S. Kalyani, October 2010. “A Unified Approach for Security Assessment of Power Systems Using Pattern Classifiers”, Ph.D. Thesis, Department of Electrical Engineering Indian Institute of Technology Madras, India.
  5. Rohini G D, B Kantharaj and R D Satyanarayana Rao, May-June 2015. “Transmission Line Contingency Analysis in Power system using Fast Decoupled Method for IEEE-14 and IEEE-30 bus Test system”, International Journal of Engineering Technology and Management (IJETM) , Volume 2, Issue 3.
  6. Amit Kumar Roy, JULY 2011. “Contingency Analysis in Power System”, M.Sc.Thesis, Thapar University, Patiala.
  7. Pritirekha Naik, May, 2014. “Power System Contingency Using Newton Raphson Load Flow Method and its Prediction Using Soft Computing Techniques” , M.Sc.Thesis, Department of Electrical Engineering National Institute of Technology Rourkela.
  8. Timothy Allen Ernster, August, 2012. “Power System Vulnerability Analysis A Centrality Based Approach Utilizing Limited Information” , M.Sc.Thesis, Washington State University, School of Electrical Engineering and Computer Science.
  9. X.‐F. Wang et al., 2008. “Modern Power Systems Analysis: Chapter 2 .
  10. Nashiren.F. Mailah and Senan M. Bashi,2009 “Single Phase Unified Power Flow Controller (UPFC): Simulation and Construction” , European Journal of Scientific Research,Vol.30 No.4.
  11. Kassim Rasheed Hameed, September 2015. “Zig-Zag Grounding Transformer Modeling For Zero-Sequence Impedance Calculation Using Finite Element Method” , Diyala Journal of Engineering Sciences, Vol. 08, No. 06, pp. 36- 7 8.


Earthing Transformer, Maloperation of relay, Static Security, Cascading outages.