Experimental Investigation on Electrical and Mechanical Characteristics of PVC Cable Insulation with Silica Nano Filler

2015 ◽  
Vol 749 ◽  
pp. 159-163 ◽  
Author(s):  
D. Edison Selvaraj ◽  
R. Vijayaraj ◽  
U. Satheeshwaran ◽  
J. Nancy ◽  
C. Pugazhendhi Sugumaran ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Power Transmission ◽  
Dielectric Strength ◽  
Filler Material ◽  
Laboratory Studies ◽  
Voltage Level ◽  
Cable Insulation ◽  
Transmission And Distribution ◽  
Dielectric And Mechanical Properties

Cables are an integral part of the power transmission and distribution network. As the voltage level increases, amount of insulation used in the cable increases. Therefore a need arises for a material with better insulation characteristics to be used in cables. The dielectric strength of cable insulation depends on many factors such as the existence of filler material in the insulation. In this work, laboratory studies on a new filler material for cable insulation have been conducted. The influence of Silicon dioxide (SiO2) filler on the dielectric and mechanical properties of polyvinyl chloride (PVC) cable were analyzed. Comparison is made between the result of measurement and the actual value of the pure specimen. From the results, it is shown that the filler material has improved the dielectric and mechanical properties of the cable insulation.

scholarly journals Dielectric Properties of Polymer Blends Using Least Square Method

2017 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Ahmed Mohammed Mahmoud ◽  
Loai S. Nasrat ◽  
Abd Allah Ahmed Ibrahim
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Least Square Method ◽  
Dielectric Strength ◽  
Least Square ◽  
Medium Voltage ◽  
Tensile Strength Test ◽  
Low Dielectric ◽  
Poly Vinyl Chloride ◽  
Wet Condition

Poly vinyl chloride (PVC) is widely used in high and medium voltage cables insulation due to its low dielectric losses and its ability to improve cables properties in high temperatures. This paper aims to improve PVC electrical properties (dielectric strength) for high voltage and medium voltage cables in respect of mechanical characteristics by adding ethylene propylene diene monomer (EPDM). Blends of PVC with EPDM were prepared with 0%, 20%, 35%, 50%, 65%, 80%, and 100% by weight percentages concentration. The dielectric strength of the blends was tested in several conditions such as dry, wet and salty wet condition. Tensile strength test was applied to check mechanical properties of the blends. Results were analyzed using least square method in a way to determine the optimum percentage of mixing PVC/EPDM blend, which gives the best of electrical and mechanical properties under different conditions.

scholarly journals Investigation of the fluids influence on change of sandstones collectors mechanical properties during saturation and degassing

2019 ◽  
Vol 109 ◽  
pp. 00103
Author(s):  
Serhii Tynyna ◽  
Vasyl Babenko
Keyword(s):  
Mechanical Properties ◽  
Stress State ◽  
Mechanical Characteristics ◽  
Partial Discharge ◽  
Laboratory Studies ◽  
Deformation Properties ◽  
Before And After ◽  
Surface Active ◽  
Sandstone Formation ◽  
State Of The Environment

The article discusses the effect of fluids on the properties of rocks. It is known that surface active environments, including gas, can significantly change the mechanical characteristics of solids. To establish the dependence of the effect of methane on the strength characteristics of rocks, the results of full-scale and laboratory studies are considered. The experiments were carried out on samples of outburst sandstone formation m3, taken at a depth of 915 m. Analysis of research results allowed to establish the effect of changes in gas saturation of rocks on their mechanical properties before and after degassing and partial discharge of experimental areas after they have been worked by lavas along m3 formation. It has been established that the reason for the increase in drillability and strength of sandstones was their degassing, and not a change in the stress state of the environment. This led to a change in the deformation properties of rocks in gas-saturated and degassed states.

scholarly journals STUDY AND DESIGN OF SINGLE PHASE CONVERTER USING OF SINGLE PHASE TRANSFORMER

2016 ◽  
Vol 4 (8) ◽  
pp. 46-51
Author(s):  
G.R. Kumrey ◽  
S. K. Mahobia
Keyword(s):  
Single Phase ◽  
Power Transmission ◽  
Electrical Power ◽  
Electrical Energy ◽  
It Use ◽  
Long Distance ◽  
Passive Element ◽  
Voltage Level ◽  
Phase Converter ◽  
Transmission And Distribution

The field of electrical transformer are most important equipment which is use to convert ac voltage or current like lower to higher , higher to lower without change in the frequency . its primary side and secondary side are isolate from each other and it can higher or lower voltage level the apparent value of electrical passive element like inductive , resistive . It use to transfer electrical energy for long distance with higher voltage level .the electrical power transmission,distribution through transformer for factories and home . AC supply can easily generated by a convenient voltage and transformed into much higher voltage for transmission and distribution purpose.

ELECTRICAL AND MECHANICAL CHARACTERISTICS OF EPOXY-NANOCLAY COMPOSITE

2009 ◽  
Vol 23 (31n32) ◽  
pp. 3925-3930
Author(s):  
HYUN-JI NOH ◽  
SUNG-PILL NAM ◽  
SUNG-GAP LEE ◽  
BYEONG-LIB AHN ◽  
WOO-SIK WON ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Interlamellar Spacing ◽  
Dielectric Strength ◽  
Diglycidyl Ether ◽  
Clay Nanocomposites ◽  
Montmorillonite Clays ◽  
Organically Modified ◽  
Clay Aggregates ◽  
Cloisite 15A

In this study, we investigated the effects of nanoclay additives on the electrical and mechanical properties of diglycidyl ether of bisphenol A (DGEBA) epoxy resin. Epoxy-clay nanocomposites were synthesized using organically modified two montmorillonite clays (MMT) with different interlamellar spacing (31.5 Å and 18.5 Å). The electrical and mechanical properties of epoxy-clay nanocopomosites were measured with variation of the amount and type of clay. The nanocomposites were found to be homogenous materials although the nanocomposites still have clay aggregates with increasing nanoclay contents. The dielectric constant showed between 3.2 ~ 3.5 and the dielectric loss showed between 3.2 ~ 5.7% in all nanocoposites. The dielectric strength and tensile strength of the 5 wt% Cloisite 15A added epoxy-oclay nanocomposite were 23.9 kV/mm and 86.7 MPa, respectively.

Dielectric and Mechanical Properties of Rubber Ferrite Composites Containing Barium Ferrite

2002 ◽  
Vol 18 (4) ◽  
pp. 269-282 ◽  
Author(s):  
M. A. Soloman ◽  
Philip Kurian ◽  
M. R. Anantharaman
Keyword(s):  
Mechanical Properties ◽  
Magnetic Property ◽  
Barium Ferrite ◽  
Value Added ◽  
Dielectric Strength ◽  
High Tech ◽  
Synthetic Rubber ◽  
Ferrite Composites ◽  
Dielectric And Mechanical Properties ◽  
Rubber Ferrite Composites

The incorporation of various types of ferrites in rubber matrixes leads to the development of rubber ferrite composites (RFC). These RFC have a large number of applications as flexible magnets, high-tech sensors, for telecommunication and radiowave absorbers. Both natural and synthetic rubber has the potential of being value added by the incorporation of ferrites. Applications like microwave absorbers warrant that these composites have an appropriate dielectric strength with the required magnetic property. This can be achieved by synthesizing composites based on natural rubber and ferrites. In this paper we report the synthesis of RFC containing barium ferrite according to a specific recipe and its evaluation of dielectric and mechanical properties.

Mechanical Properties and Microstructure of Zinc Oxide Varistor Ceramics

2006 ◽  
Vol 530-531 ◽  
pp. 408-413 ◽  
Author(s):  
H.N. Yoshimura ◽  
André Luiz Molisani ◽  
N.E. Narita ◽  
J.L.A. Manholetti ◽  
J.M. Cavenaghi
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Power Transmission ◽  
Electronic Devices ◽  
Ceramic Materials ◽  
Surge Arresters ◽  
Zno Varistors ◽  
Processing Defects ◽  
Zinc Oxide Varistor ◽  
Transmission And Distribution

ZnO varistors are nonlinear resistors used as surge arresters in power transmission and distribution for the protection of electronic devices. Electrical characteristics of these materials have been extensively studied, but their mechanical behavior is not completely understood. It has been suggested that the breakdown of ZnO varistors is related to microstructure heterogeneities and processing defects. These defects are the same that usually control the mechanical strength of ceramic materials. In this work, mechanical properties (flexural strength, fracture toughness, elastic constants, and hardness) of five commercial blocks of ZnO varistors (class I) from different producers were measured and correlated to their microstructure. Pore fraction and size significantly affected the flexural strength.

scholarly journals Experimental Study on Optimization of Filler Concentration of Silicon Rubber Compound Used in High Voltage Insulators

2021 ◽  
Vol 9 (12) ◽  
pp. 327-346
Author(s):  
Allu Shanmukha Rao
Keyword(s):  
Tensile Strength ◽  
Specific Gravity ◽  
Polymeric Material ◽  
Silicone Rubber ◽  
Power Transmission ◽  
Dielectric Strength ◽  
Filler Material ◽  
Inclined Plane ◽  
Tear Strength ◽  
Polymeric Insulators

Abstract: In any power transmission system, insulators are essential for a reliable electrical power supply. The Efficiency of insulators will be decided by their electrical and mechanical properties. Recently in many of the power transmission systems, the conventional porcelain insulators are being replaced by polymeric insulators due to various advantages in their properties. Polymeric insulators have been increasingly popular in recent years as a result of their superior performance in contaminated environments due to their hydrophobic nature. However, research is still being carried out on Polymeric material with regards to ageing condition and feasibility for large scale utilization. Ageing of insulation is due to Environmental, Tracking and Erosion conditions. Ageing leads to immature failures and uncertainty in the performance of the insulators. The constituent materials and their properties have a significant impact on the performance of polymeric insulators. There is a strong need to look into newer filler materials which can be added to the existing polymeric base materials to constitute a composite. Keeping this in mind, in the proposed research uses Silicone rubber as base polymeric material and along with that additives are added to arrive at three different composites. A new filler material will be added to the base material forming a new composite. All these HTV Silicone rubber based composites are then tested the recovery of hydrophobicity, dielectric strength, hardness, specific gravity, tensile strength , ultimate elongation ,tear strength properties based on ASTM standards. Further, Inclined plane Tracking and Erosion studies are also conducted on the polymeric test samples for 6 hours to evaluate the SiR housing material suitability for outdoor insulator applications by subjecting them to AC high voltages under laboratory conditions as per IEC 60587 standards. Keywords: Recovery of hydrophobicity, dielectric strength, hardness, specific gravity, tensile strength, ultimate elongation, tear strength, inclined plane tracking and erosion, ageing, filler material.

A Study of Some Mechanical and Physical Properties for Palm Fiber/Polyester Composite

2020 ◽  
Vol 38 (3B) ◽  
pp. 104-114
Author(s):  
Samah M. Hussein
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Dielectric Constant ◽  
Date Palm ◽  
Volume Fraction ◽  
Unsaturated Polyester ◽  
Dielectric Strength ◽  
Palm Fiber ◽  
Mechanical And Physical Properties ◽  
Polyester Composite

This research has been done by reinforcing the matrix (unsaturated polyester) resin with natural material (date palm fiber (DPF)). The fibers were exposure to alkali treatment before reinforcement. The samples have been prepared by using hand lay-up technique with fiber volume fraction of (10%, 20% and 30%). After preparation of the mechanical and physical properties have been studied such as, compression, flexural, impact strength, thermal conductivity, Dielectric constant and dielectric strength. The polyester composite reinforced with date palm fiber at volume fraction (10% and 20%) has good mechanical properties rather than pure unsaturated polyester material, while the composite reinforced with 30% Vf present poor mechanical properties. Thermal conductivity results indicated insulator composite behavior. The effect of present fiber polar group induces of decreasing in dielectric strength, and increasing dielectric constant. The reinforcement composite 20% Vf showed the best results in mechanical, thermal and electrical properties.

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