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Browsing Thesis by Subject "POWER SYSTEMS ENGINEERING"

Now showing items 1-20 of 53

Alternative Analysis of Grid-Tie Resilient Photovoltaic System for Supplying Power to Ethio-Telcom MSAG in Debre Markos Town

Alemayehu, Alazare (2020-03-24)

This thesis was undertaken to investigate Analysis of Grid-Tie Resilient PV System with battery back-up as an alternative source of energy to solve the regular grid failure problem in the Ethiotelecom MSAG, Debre Markos ...
ARC FLASH REDUCTION IN LOW VOLTAGE SYSTEMS USING LOW VOLTAGE CIRCUIT BREAKERS

KASSIE, LAKE (2020-05-05)

Technicians working with low voltage power systems face a high risk of being exposed to arc flashes due to their inadvertence. Reducing arc flash energy level can provide increased safety for the technicians. To avoid ...
Assessment of Power quality of Mekenisa substation 15 KV feeder Line

Sisaye, Wondimneh (2020-03-16)

This thesis present assessment of power quality of mekenisa substation 15KV feeder line which is located in Addis Ababa around lebu area. The assessment investigates the major electrical phenomena that disturb the power ...
Assessment on protection coordination Case study of Ethiopian Existing Power Network in Addis Ababa region / 132kV Substation

Seifu, Tedla (2020-03-16)

Power system security is an important issue in power system operation and security assessments should be performed regularly both in online and off-line modes. Evaluation of protection coordination performance of an ...
Combination of Optimal Capacitor Placement and Network Reconfiguration for Power Loss Reduction in Geferssa Distribution System

Kassaw, Markos (2020-03-16)

The purpose of this study is to explore combination of optimal capacitor placement and network reconfiguration for power loss reduction in Geferssa distribution system. A distribution system’s network carries electrical ...
CONTINGENCY ANALYSIS OF ETHIOPIAN POWER SYSTEM ON 230 kV AND 400 kV TRANSMISSION LINES

BEWKET, GENANEW (2020-03-16)

To ensure Ethiopian transmission system is planned and operated safely, economically and reliably, steady state contingency analysis must be performed. Contingency analysis is an energy management system to give the operators ...
CRITICAL CLEARING TIME EVALUATION OF ETHIOPIAN 230 KV /400 KV POWER SYSTEM

TSEGA, GEBRU (2020-05-03)

This thesis uses transient and contingency analysis to investigate operating conditions of Ethiopian high voltage power system and evaluate the impact of contingencies, results from manual or fault cases, on its operational ...
Design a PV Power Supply System for Water Pumping System (Case study for Wada Barwaqo Kebele)

ASNAKE, ELIAS (2020-03-16)

Different media broadcasted1 that some parts of the country, especially Oromia, Ethio - Somali and Afar National Regional States faced the worst drought in 50 years triggered by El Nino in 2017. The livelihoods of the ...
DESIGN AND ANALYSIS OF ADAPTIVE NEURO-FUZZY BASED POWER SYSTEM STABILIZERS FOR DAMPING OSCILLATIONS IN MULTI-MACHINE POWER SYSTEMS

Mesfin, Getaneh (2020-03-17)

The Power systems are subjected to low-frequency disturbances that might cause loss of synchronism and an eventual breakdown of the entire systems. The “low-frequency oscillations” is one of the operational constraints ...
Design and Control of AC/DC Microgrid System for Rural Electrification in Ethiopia: A Case Study on Kirakir Village

Tanashu, Minyahil (2020-05-05)

Microgrid power systems have been possible solution to supply electricity to rural communities living far in areas where grid extension is difficult. In this paper, the designing, modeling process and ...
Design and Economic Analysis of Solar/Biomass Electric Power Generation to Replace the Existing Power Supply Utility For TZA Dairy Farm and Milk Processing Factory

Tilahun, Assemie (2020-03-16)

Ethiopia is experiencing shortage of electric power that is likely to be decreasing day to day, and which tends to use renewable energy resources to execute energy crisis. Tiret is one of the endowment companies in Ethiopia ...
DESIGN AND MODELLING OF 33KV OVERHEAD RING DISTRIBUTION NETWORK FOR BAHIR DAR TOWN (INDUSTRIAL ZONE AND FACTORY AREAS)

YARED, HABITU (2020-03-16)

Since all of Distribution network of Bahir Dar Town is only 15KV, Radial, and unreliable, all customers having the same area tapped with one radial feeder due to these rehabilitations is required and implemented starting ...
DESIGN AND PERFORMANCE ANALYSIS OF MICRO HYDRO ELECTRIC POWER SYSTEM AT DIVERSION WEIR IRRIGATION PROJECT

Baye, Tilahun (2020-05-05)

Ethiopia is a developing country with a total access to electricity not exceeding 58% (in 2017) and the number of household connected to this access is 25%. About 85% of the population lives in places where access to ...
DESIGN OF FUZZY LOGIC CONTROLLED WIND –DIESEL HYBRID POWER GENERATION SYSTEM (CASE STUDY: BERBERA DISTRICT)

MUSE, FAISAL (2020-03-16)

Energy is critical to the economic growth and social development of any country. The ever increasing and continuously unpredictable fluctuating diesel prices, with a location that is rich in different renewable energy ...
DISTRIBUTION NETWORK EXPANSION PLANNING CONSIDERING DG - PENETRATION LIMIT USING A METAHEURISTIC OPTIMIZATION TECHNIQUE: CASE STUDY AT DEBRE MARKOS DISTRIBUTION NETWORK

AYALEW, YAYEHYIRAD (2020-03-16)

Electrical energy plays a vital role for the socio-economic development of a nation. To combat for the power system profile problems, a distribution station established considering future expansion due to urbanization, ...
THE ECONOMIC IMPACT OF POWER INTERRUPTION ON INDUSTRIAL CONSUMERS: A CASE STUDY IN YES BRANDS FOODS & BEVERAGES PLC AND OXFORD AMALGATED PLC

Achalu, Solomon (2020-03-16)

The impact of power interruption on the modern society, who uses electricity almost in every aspect of life, is very severe. During power interruption, the daily routine activities of the consumers especially the industrial ...
ENHANSING RELIABILITY BY OPTIMIZATION OF POWER DISTRIBUTION SYSTEM

TADESSE, HIKMA (2020-05-05)

Every aspect of our day-to day life is linked with electricity. The quality of life and the development of a given country depend on the quality and reliability of electric power supply systems. The assessment of distribution ...
EVALUATION AND ENHANCING THE RELIABILITY OF SUBSTATIONS BASED ON PROTECTION FAILURE (CASE STUDY: BAHIR DAR II SUBSTATION)

GETANEH, ALEMAYEHU (2020-03-16)

Substations are connecting the generating station, transmission systems and load centers. Most studies about substation reliability focus on only reliability adequacy by neglecting the protection failures. The reliability ...
EVALUATION AND MITIGATION OF POWER QUALITY PROBLEMS IN THE INDUSTRIAL PLANTS, (CASE STUDY: UNIQUE MACARONI AND PASTA FLOUR FACTORY IN BAHIRDAR CITY)

Bayu, Atinkut (2020-03-16)

This thesis focuses on the evaluation and mitigation of power quality problems of Unique Macaroni PLC factory which is found in Bahir Dar town. The evaluations investigate the major electrical power quality problems of the ...
EXCITATION LOSS DETECTION OF SYNCHRONOUS GENERATOR ON POWER SYSTEM PERFORMANCES

Ygzaw, Alganesh (2020-03-16)

Generating steadiness of synchronous generators is highly dependent on their exciter, as the direct current from excitation system sustains generator stator and rotor windings magnetically coupled. However, any excitation ...

Browsing Thesis by Subject "POWER SYSTEMS ENGINEERING"

Browsing Thesis by Subject "POWER SYSTEMS ENGINEERING"

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