Electrical insulation materials are a critical component in the design and development of electrical systems, playing crucial role ensuring safe efficient transmission distribution power. The aim this study is to examine effect incorporating rice husk ash silane on hydrophobicity, leakage current, tensile strength properties composite specimens. This focused fabricating composites by varying filler concentrations, using epoxy resin as matrix. specimens RTV 10, 20, 30, 40, 50 utilized...

A novel bio-inspired optimization algorithm is proposed in this paper namely barnacles mating optimizer (BMO) algorithm. The main inspiration of BMO originated from the behavior nature. Barnacles are hermaphroditic micro-organisms which have both male and female sex reproductions. To create new off-springs, they must be fertilized by a neighbor. They well-known for their long penises, about seven times length bodies to cope with changing tides sedentary lifestyle. In BMO, selection...

Qualities of welding play an important part in industry especially manufacturing field. Post-welding non-destructive test is one the importance process to ensure quality but it time consuming and costly. To reduce chance defects, online monitoring had been utilized by continuously sense some parameters predict quality. One current, which rich information lack study focus on extract them at signal analysis level. This paper presents current using Short Time Energy (STE) processing quantify...

Space charge penetration into bulk of cable insulation is known as the cause breakdown thus affecting power delivery capability. Penetration packet-like positive space enhances local field and when increases up to 5 MV/cm before occurs. Exactly occurs, seems stagnant it prevented penetrate further cathode. The generated Maxwell force assumed press free volume reducing size itself. A pulsed-electroacoustic (PEA) equipment capable sample ton developed. Sample used in this study a 150 pm...

A compact and sensitive AC magnetometer is developed for evaluation of magnetic nanoparticles solution. The consists two main parts; excitation detection coil systems. Helmholtz configuration was used as the to ensure a high homogeneity field. To reduce resistance due eddy current effect in wire at high-frequency region, Litz used. composed 60 strands copper wires with 0.1-mm diameter. For coil, first order axial differential so that environmental noises can be canceled. consisted 1000-turn...

Positive charges packet is frozen inside the bulk of a low-density polyethylene(LDPE) film after subjecting to 1.5MV/cm DC electric field. In this paper, simultaneous measurements space charge dynamics and external current through LDPE are carried out by using pulsed electroacoustic (PEA) method in order understand phenomenon. By carrying these simultaneously, we can further about physical process during freezing period. External shows an increase as field up 5MV/cm though velocity...

Electrical treeing is one of the main failure phenomena in cross-linked polyethylene (XLPE) cable insulation. Once tree initiates insulation, it starts to growth and finally leads breakdown. To date, silica nanofiller XLPE was limited study permittivity, dielectric loss, space charge, AC impulse breakdown strength partial discharge. The results from these cooperative tests show an improvement insulation properties over pure However, electrical containing are still uncertain. Therefore, this...

A light delay path and a streak camera are combined as dc pre-breakdown optical observation system. The in this study is 20-m-long image guide scope (IGS). IGS will the for 100 ns before reaching camera. During time, be triggered of can obtained. Previously, either an (weak discharge at one electrode or bulk liquid sample) complete breakdown (strong bridging across electrodes) could obtained by using old system (IGS film photographic system). transition process from to was unknown. dedicated...

Thermoelectric generator (TEG) is one of the solutions to produce energy from waste heat and pure DC voltage. TEG based on solid state technology with no moving parts works principle Seebeck effect. In this work, was combined a solar concentrator device that able convert electrical energy. The used concentrate thermal sun onto side thermoelectric module which acts as hot side. assembled system maximum power output up 0.157W 0.479% an efficiency achieved.

This paper presents an experimental study on long time range breakdown of Low Density Polyethylene (LDPE) under very high dc applied fields (E mean ) 2.0 MV/cm or 3.0 MV/cm.Breakdown lag and space charge distribution are simultaneously measured for a 200-µm-thick LDPE sheet with positive-semicon negative-evaporated Al electrodes.A voltage is to the until occurs.20 samples tested both voltages.It should be remarked that 50 % survivor probability T , corresponding in which occurs 10 out 20, 70...

In the last two decade, a significant effort has been made to understand better internal charge distribution inside dielectric materials. This resulted in development of several methods which gives details about material. this study, effect electric field with different edge electrode on material was being observed and analyzed using Finite Element Method (FEM). Base results, we can see that is higher at insulating materials when radius(r) approaches 0mm due sharp electrode. As radius...

Space charge penetration into bulk of cable insulation is known as the cause breakdown thus affecting power delivery capability. Penetration packet-like positive space enhances local field and when increases up to 5 MV/cm before occurs. Exactly occurs, seems stagnant it prevented penetrate further cathode. The generated Maxwell force assumed press free volume reducing size itself. A pulsed-electroacoustic (PEA) equipment capable sample tons developed. Sample used in this study a 150 µm...

This paper shows a comprehensive comparison study between Nano components and Micro for high voltage power lines insulation depends on polymers such as Polyethylene like Low-Density (LDPE) Cross-Linked (XLPE). Potential incidence may happen in the cable, which is space charge phenomena, increase electrical field can lead to breakdown insulator. More precisely fillers' effect distribution with different relative permittivity size of filler's particle cable. Furthermore, this review implicates...