Modelling the voltage drop of Lipa soil series for short-distance Single Wire Earth Return (SWER) distribution system

Date

2011

Degree

Bachelor of Science in Electrical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Roderick L. Catriz

Request Access

To request access of this material, please email the administrator at uscs-mainlib.uplb@up.edu.ph

Abstract

Today, electricity is not readily available nationwide, only those who are connected in the grid can utilize electrical energies. These past decades, rural electrification is one of the primary goals of the Government. As part of the solution, renewable energies that are available in rural and remote areas can be harnessed to provide energy, to aid in global warming, and to lessen the energy shortage worldwide. But distribution of these energies is the main problem. Single-Wire-Earth-Return (SWER) distribution system can be the answer for this problem. SWER, which uses the Earth (soil) as the return path, is a Single-Phase AC system. Also, this type of distribution system can be used by the developing countries since it only requires much lower amount for installation compared to the existing distribution systems. SWER is ideal for places where population density is low like Australia, New Zealand, and Brazil. In every power system, it is very important to determine the factors that can affect the voltage drop so that the supplied energy can be properly utilized by the user. To have an idea for the voltage drop of SWER, field experimentation was done to gather data. These data were subjected to statistical analysis like, correlation and regression analysis to obtain a model that best characterize the voltage drop of SWER while power demand, depth of grounding rod and transmission distance used were varied on Lipa Soil Series. In the field experiment, different parameters were measured like line current, power supplied, frequency, and voltage terminal of the load while a certain independent variable was being varied and the other were held constant. The data were measured using devices such as the fluke power analyzer, bench type ammeter, and 2 VOMs. When the data gathering was done, voltage drops were calculated, in total there were 600 test points. These data were subjected to statistical analysis and the selected model was: Vdrop = 0.105 ∗ Power + 12.718 ∗ 1 Depth + 0.037 ∗ Distance − 15.718 This model predicts 97% of the variations in the voltage of the Lipa soil series in this study with 3 independent variables power demand, transmission distance, and the depth of grounding rods.

Language

English

LC Subject

Electric power transmission, Electric power systems--Electric losses

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993 2011 E64 M36

Document Type

Thesis

This document is currently not available here.

Share

COinS