Neural point grounding in Iraqi national grid appropriate types and locations

Dissertant

al-Gharrawi, Nathir A. Shalash

University

University of Technology

Faculty

-

Department

Electronic Engineering Department

University Country

Iraq

Degree

Master

Degree Date

2008

English Abstract

The research objective is to build a mathematical model and computer program through which the location of grounding could be determined and the number of file grounded transformers in the station of the electric system. This work consists of three main parts.

The first part include the setting up of study and program to calculate the fault current (single line to ground)of the station that is required to be grounded, through it calculate the ground fault factor (GFF) and by impedance matrixes positive and zero calculation of both ratios (X0 / X1), (R0 / Xl) would be made.

Where all probabilities have been taken according to fault location and the number of grounding of the transformers in the system from which the points of grounding to the transformers in the station were found arc taking in account. In The second part another criterion has been taken which is to protect the transformers according to the fault current and the points of grounding to the transformers and then finding out the operation of relays (over current relay, earth fault relay) to choose the best grounding. The third part consist of applying this mathematical model and the program on pari of the Iraqi national grid(132 KV), which is AL-Furat AL-Awsat area which divided into two regions, the first include Babil city and the second both Najaf , Karbala and AL-qadisiya as a single area.

Throughout (the results there have been found five The programs used in this research were carried out by u : (MATLAB) and PSS / E package.

Main Subjects

Electronic engineering

Topics

• Mathematical models

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-305430