Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"TK3001-3521 Distribution or transmission of electric power"”.
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Multi-facts devices installation for loss minimization and techno-economic impact assessment using EPSO approach
… a new meta-heuristic approach technique for optimal location and sizing of multi-unit Flexible Alternating Currents System (FACTS) device installation using single- and multi-objective problems. It also considers techno-economic impact in the system. In this research, the first objective …
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An optimal load shedding scheme based on the analytical heirarchy approach: a case study of the Selangor Electrical System
Most people depend on electrical energy in every aspect of their life. All sectors in Malaysia really need electrical energy to remain stable and consistent. As consumers, the public are want to have constant distributed of electricity energy without any disturbances. For example, food industries …
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Transmission losses cost allocation in restructed electricity market environment
… these recent decades, the restructuring system of electricity market has been taken places around the whole world. Due to the restructuring (deregulation), the electrical power system has been divided into three separates categories according to the function. First stage of power system is the …
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Fast transient simulation of pinceti surge arrester model on a transmission line using ATP Software
Lightning is one of the main causes of overvoltage on power system. Over voltages problem at the transmission line can cause flashover voltage at the insulator string, power system disturbances and transformer failure. To prevent of insulator string and equipment of the power system from damaging …
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Lightntng protectton of quadruple circuit 275/132kV transmission line
This paper presents a comparative lightning performance study conducted on the 275kY and 132 kV transmission line from Kimanis and SPR Power Stations to PMU kolopis and PMU Lok Kawi, Sabah in quadruple circuit shielded transmission line using a software programs, TFlash. The line performance was …
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Recommended protection scheme setting coordination for nine busbars transmission grid
Protection system is one of the important parts of the power system. The protection system can be accepted if and only if it is efficient, reliable and realizes some requirements. For protection of transmission line three stepped distance protection can provide remote backup protection to …
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Optimisation of insulator design for improved electric field performance
Insulators are the integral part of the power system. Among them polymeric insulators are essential for the better performance. Polymer insulators become popular due to various advantages offered such as light weight, ease of installation and lower cost. Despite numerous advantages offered, there …
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Fast transient simulation of IEEE recommended surge arrester model on a transmission line using alternative transient program (ATP)
This study presents the outcomes of the performance evaluation simulation residual voltage output resulting from lightning arrestors IEEE Recommended model. This simulation uses software Alternative Transient Program - Electromagnetic transients Programmed (ATP-EMTP). This software is very …
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Study the electrical stress withstand properties of heated refined bleached and deodorized palm oil dielectrics
The world’s energy requirement has been dominated by petroleum oil for centuries in many application fields, including transportation, household, and electricity. Mineral oil as an important insulating material in transformers has been used more than 150 years. Mineral oil application in power …
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Simulation of haddad surge arrester model on a 132kV overhead transmission line for back flashover analysis using Alternative Transient Program (ATP)
Lightning is a major problem in a transmission line system. Lightning which occurs around the world will give a huge effect on electrical transmission system and also on distribution system division. Lightning-strike commonly generated in two different ways. One of the ways is direct strike to a …
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Lightning effects on underground distribution cable using alternative transient program
… cable is commonly used in situation where power need to be transmitted across river or sea or through heavily populated areas. Even though underground cables are not directly exposed to hazard, lightning can induce a potential on the insulation of the underground cable. About 80% of the …
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Fast transient simulation of fernandez surge arrester model on a transmission line using ATP
… phenomenon that occurs in nature. The amount of energy contained in a lightning stroke is very high and it can be extremely destructive. Electric distribution networks are particularly vulnerable to lightning strokes. A single stroke to a distribution line can be sufficient to cause a blackout …
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An improved firefly algorithm for optimal microgrid operation with renewable energy
Lately, an electrical network in microgrid system becomes very important to rural or remote areas without connection from primary power grid system. Higher cost of fuels, logistic, spare parts and maintenance affect the cost for operation microgrid generation to supply electrical power for remote …
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Determination of space charge characteristics on contaminated XLPE insulator
XLPE insulator cable has been widely used underground due to urbanization and this has exposed cable to many pollutants. Existence of pollutant on cable layer may mitigate performance of cable especially on XLPE insulator. Many studies had been done to identify effects of pollutant towards XLPE …
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Structural, electro-magnetic and electrical analysis in monovalent doped Nd0.75Na0.25-xKxMnO3 manganites
… its effect on crystalline phase and surface morphology as well as electrical transport and magnetic properties. However most of study show inconsistent result regarding to the electrical transport and magnetic properties as well as crystalline phase and morphology study. Thus, further detailed …
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Development of web application package to design AC substation grounding system based on IEE STD. 80-2000 for continuous education and professional training
Substation grounding is a very important aspect in a substation design which forms a safe grounding grid system besides functioning as a means of dissipating currents to the surrounding ground during normal and fault conditions, also prevents the ground potential rise during a fault from creating …
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Study the effect of eggs incubation parameter through development of new experimental rig for IKTA quails species
… are used that result in different percentages of hatching between hatcheries. This study aims to investigate the effect of increasing incubation temperature, eggs movement type, and incubation time through a set of experimental rigs developed specifically to suit the experimental needs to …
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Electric field and space charge characteristics of xlpe insulation doped with nanofillers
Various types of nanoparticles had been introduced as additive to polymeric insulator by previous researchers. As a result, the existence of nanometre-size particles is well acknowledged in enhancing the dielectric strength in insulation material. The remained unanswered that is concerning the …
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Analysis of grounding performance for different bio filler medium effect
The importance of grounding system is when any fault current due to the power system problem, or lightning, can allow that dangerous current passes through the earth. Although with current specification and standardization right now is sufficient, there is no harm to try to improve the performance …
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Study the effect of eggs incubation parameter through development of new experimental rig for IKTA quails species
… are used that result in different percentages of hatching between hatcheries. This study aims to investigate the effect of increasing incubation temperature, eggs movement type, and incubation time through a set of experimental rigs developed specifically to suit the experimental needs to …
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