Volume 8, Issue 3, May 2019, Page: 77-85
Effect of Transformer Parameters and Line Reactor on Power Flows in High-Voltage Systems
Ngo Duc Minh, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
Le Tien Phong, Electrical Faculty, Thai Nguyen University of Technology, Thai Nguyen, Viet Nam
Received: Jun. 14, 2019;       Accepted: Jul. 11, 2019;       Published: Jul. 24, 2019
DOI: 10.11648/j.epes.20190803.12      View  594      Downloads  106
This paper focuses on the effect of transformer parameters and a line reactor on distribution of power flows in a high-voltage substation and transmission lines. Four case studies that have different values of transformer parameters including rated power, short-circuit impedance and reactance/resistance ratio are supposed in this research. Basing on power flows on transformers in case of the parallel operation, load factor of each transformer and operating parameters are considered in above case studies. Moreover, a line reactor is proposed in this paper to regulate power flows in a system having two power sources. Four operating modes of the proposed line reactor are defined by changing on/off states of switches in this device to modify the value of impedance. The effect of the line reactor on power received from sources and power flows on transmission lines is evaluated in its all modes. Research results are carried out by the ETAP 16.0 software and present high accuracy and reliability for the proposed problems. Research contributions help dispatchers understand the essence of power transmission process, solve real problems and give out effective solutions to operate high-voltage systems.
Line Reactor, Parallel Operation, Transformer Parameter, ETAP Software, Power Flow, Voltage Angle, Voltage Module
To cite this article
Ngo Duc Minh, Le Tien Phong, Effect of Transformer Parameters and Line Reactor on Power Flows in High-Voltage Systems, American Journal of Electrical Power and Energy Systems. Vol. 8, No. 3, 2019, pp. 77-85. doi: 10.11648/j.epes.20190803.12
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
YooJin Kwon, SangYoum Lee, Ralph King, Jong In Lim and Huy Kang Kim (2019), “Behavior Analysis and Anomaly Detection for a Digital Substation on Cyber-Physical System”, Electronics, Vol 8, Issue 3, ISSN 2079-9292.
Mohammad A. Lakdawala, Vaibhav Patel, Bhavik Patel, Pushprajsinh Jadeja (2017), “A Review on Load Sharing of Transformer”, International Journal of Science Technology & Engineering, Volume 3, Issue 7, ISSN (online): 2349-784X.
Álvaro Jaramillo-Duque, Nicolás Muñoz-Galeano, José R. Ortiz-Castrillón, Jesús M. López-Lezama (2018), “Power Loss Minimization for Transformers Connected in Parallel with Taps Based on Power Charge ability Balance”, Energies, Vol. 11, ISSN 1996-1073.
Adebayo I. G., Adejumobi, I. A., Adepoju, G. A (2013), “Power Flow Analysis Using Load Tap – Changing Transformer (LTCT): A Case Study of Nigerian 330kV Transmission Grid System”, International Journal of Engineering and Advanced Technology (IJEAT), Volume-2, Issue-3, ISSN: 2249 – 8958.
Dr. V. S. Vakula, Mr. chetlapalli Sai Praveen, Mr. Niddan Rames (2017), “Automatic control of On Load Tap Changing of Transformers for Enhancement of Voltage Stability”, International Journal of Engineering Development and Research, Volume 5, Issue 3, ISSN: 2321-9939.
Sidnei do Nascimento and Maury M. Gouvêa Jr (2017), “Voltage stability enhancement in power systems with automatic facts device allocation”, Proceeding of International Conference on Energy and Environment Research, ICEER 2016, Barcelona, Spain, ISSN: 2278 – 1323.
Mallesh Gadeppanavar, Vinay Pattanashetti (2013), “Improving Efficiency in Transmission and Distribution System”, International Journal of Emerging Technology and Advanced Engineering, Vol 3, Issue 3, ISSN 2250-2459.
Vireshkumar G. Mathad, Basangouda F. Ronad (2013), “Review on Comparison of FACTS Controllers for Power System Stability Enhancement”, International Journal of Scientific and Research Publications, Volume 3, Issue 3, ISSN: 2250-3153.
Raju Pandey, A. K. Kori (2012), “Real and Reactive Power flow Control Using Flexible AC Transmission System connected to a Transmission line: a Power Injection Concept”, International Journal of Advanced Research in Computer Engineering & Technology (IJARCET), Volume 1, Issue 6, ISSN: 2278 – 1323.
Y. V. Sridhar, Haitham Safar, Nilesh Modi, Yousuf Ali, Yacoub Al-Dashti (2013), “Techno-Economic Study of Series Current Limiting Reactor and Its Impact in the 11KV Network with Harmonic Pollution”, Journal of Energy Technologies and Policy, Vol. 3, No. 11, ISSN 2224-3232 (Paper) ISSN 2225-0573 (Online).
Saurabh Kulkarni and Surya Santoso (2012), “Interrupting Short-Circuit Direct Current Using an AC Circuit Breaker in Series with a Reactor”, Journal of Energy Technologies and Policy, Vol. 2012, ISSN 2090-181X.
Md Shafiul Alam, Mohammad Ali Yousef Abido, Ibrahim El-Amin (2018), “Fault Current Limiters in Power Systems: A Comprehensive Review”, Energies, Vol. 11, ISSN 1996-1073.
Milap Akbari, Hemal Chavda, Jay Chitroda, Neha Kothadiya (2017), “Review paper on Fault analysis and its Limiting Techniques”, International Research Journal of Engineering and Technology (IRJET), Volume: 04 Issue: 02, e-ISSN: 2395 -0056, p-ISSN: 2395-0072.
Akpeh V. A, Madueme T. C, Ezechukwu (2015), “A New Approach to Implementing Fault Current Limiting Reactors (CLRS) On Feeders with Negligible Constant Power Losses”, International Journal of Modern Engineering Research (IJMER), Vol. 5, Iss. 11, ISSN: 2249–6645.
Mohsin Mumtaz, Hussain Sarwar Khan (2018), “Load Flow Analysis of CIGRE Benchmark Model Using ETAP”, Proceedings of the International Conference on Renewable, Applied and New Energy Technologies, ICRANET-2018, pp. 19-22, Air University, Islamabad, Pakistan.
Rohit Kapahi (2013), “Load Flow Analysis of 132 kV Substation Using ETAP Software”, International Journal of Scientific & Engineering Research, Volume 4, Issue 2, ISSN: 2229-5518.
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