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Design of 2500 KVA 11/0.4 KV Distribution Substation Based on Load Flow Analysis Using ETAP Software


Md. Sarowar Hossain Chowdhury1*, Md. Taslim Uddin1, Md. Moniruzzaman1, Dipa Saha1, A. Helal1, Md. Motasim Billah1, and Md. Aliuzzaman Sarder1

1Engineering Division, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh. 

*Correspondence: sarowar.royal@gmail.com (Engineering Division, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh).

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ABSTRACT

For the development and growth of economy and social condition of any country, constant supply of good quality electrical power is essential. The main barrier to achieving this goal is the variation of voltage in the network. The load connected in a system varies with time, which causes the variation in the bus voltages. By properly designing and installing the substation, these voltage regulations can be reduced. Load flow analysis provides the steady-state characteristic data and generates reports for voltage magnitude, phase angle, the flow of active and reactive power, losses in the system, etc. Accurate and highly reliable results of Load Flow Analysis (LFA) can be obtained by using ETAP (Electrical Transient Analyzer Program) software. In this research, ETAP software, which utilizes the Adaptive Newton-Raphson method, has been used for performing the load flow analysis of 2500 KVA 11 /.4 KV substation. Actual manufacturer data is utilized for transformers, VCBs, circuit breakers, cables, and other components, whereas computed data is used for loads on the system. The main focus of this study is to improve the voltage regulation and the overall power factor (PF) of the network by inserting capacitor bank also known as the PFI plant in the system. This technique also minimizes the input current and power losses.

Keywords: Load flow analysis, One line diagram, ETAP, PFI, Single line diagram, and  Distribution substation.

Citation: Chowdhury MSH, Uddin MT, Moniruzzaman M,  Saha D,  Helal A, Billah MM,  and  Sarder MA. (2021). Design of 2500 KVA 11/0.4 KV distribution substation based on load flow analysis using ETAP software, Int. J. Mat. Math. Sci., 3(6), 133-138. https://doi.org/10.34104/ijmms.021.01330138


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