Journal ArticleDOI
A composite core conductor for low sag at high temperatures
A. Alawar,E.J. Bosze,S.R. Nutt +2 more
TLDR
In this paper, a new type of overhead conductor with a polymer composite core was evaluated in terms of the mechanical properties and operating characteristics of the conductor, which is intended for electrical power transmission, and is designated ACCC/TW.Abstract:
A new type of overhead conductor with a polymer composite core is evaluated in terms of the mechanical properties and operating characteristics. The conductor is composed of trapezoidal O'-tempered aluminum wires helically wound around a hybrid glass/carbon composite core produced by pultrusion. The conductor is intended for electrical power transmission, and is designated ACCC/TW, for aluminum conductor composite core/trapezoidal wire. Measurements of core properties and conductor sag at high temperatures were compared to conventional ACSR (aluminum conductor, steel-reinforced) of the same diameter. The tensile strength of the ACCC/TW was /spl sim/1.5 times greater than conventional ACSR of the same outer diameter. The CTE of the composite core was approximately 4 times lower than the steel core in ACSR. The ACCC/TW conductor exhibited a six-fold reduction in high-temperature sag compared with conventional ACSR (Drake) when operated at the same current. The ACCC/TW conductor also exhibited greater ampacity than ACSR conductor at all operating temperatures.read more
Citations
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Journal ArticleDOI
Influence of hygrothermal environment on thermal and mechanical properties of carbon fiber/fiberglass hybrid composites
TL;DR: The absorption and diffusion of water in a carbon fiber/glass fiber hybrid composite was investigated in this paper, where water-sorption experiments, mechanical property tests and dynamic mechanical analysis (DMA) were performed after immersion in water at different temperatures for up to 32 weeks.
Journal ArticleDOI
Membrane-type metamaterials: Transmission loss of multi-celled arrays
TL;DR: In this paper, the authors examined the scale-up of the effect of nonuniform mass distribution and frame compliance on the transmission loss of multicell metamaterials with negative dynamic mass density.
Proceedings ArticleDOI
A Survey on Technologies for Implementing Sensor Networks for Power Delivery Systems
TL;DR: An overview of the highlights from the detailed survey conducted to review existing sensor technologies and products, and identifies 'gaps' in currently available sensor technologies, both from a performance and cost point.
Journal ArticleDOI
Moisture absorption of unidirectional hybrid composites
Ehsan Barjasteh,Steve Nutt +1 more
TL;DR: In this article, the effect of hygrothermal aging on glass transition temperature (Tg), short beam shear strength (SBS), and tensile strength was determined for hygrohermal exposure at 60°C and 85% relative humidity (RH).
Journal ArticleDOI
Thermal aging of fiberglass/carbon-fiber hybrid composites
TL;DR: In this article, a reaction diffusion model was developed for each of the two hybrid sections to obtain the oxygen concentration profile and the thickness of the oxidized layer (TOL) within the composite rods.
References
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Journal ArticleDOI
Characteristics of ACSR Conductors at High Temperatures and Stresses
O. Nigol,J. S. Barrett +1 more
TL;DR: In this paper, a new method of sag calculation is presented to provide improved accuracy at higher temperatures and mechanical loads, based on the stress-strain and temperature elongation data obtained on ACSR conductors.
Book
Composite Materials: Properties as Influenced by Phase Geometry
TL;DR: In this paper, the authors classify composites into three categories: elasticity, stiffness, and conductivity, and propose a simplified composite theory for elasticity and stiffness.
Journal ArticleDOI
Steel Supported Aluminum Conductors (SSAC) for Overhead Transmission Lines
TL;DR: In this paper, the authors describe the properties and performance characteristics of a composite aluminum-steel conductor, where the aluminum wires are fully annealed in the factory and normally all or most of the mechanical load is carried by the steel.
Proceedings ArticleDOI
ACSS/TW-an improved conductor for upgrading existing lines or new construction
TL;DR: In this article, the authors describe the properties and performance characteristics of an improved overhead conductor, ACSS/TW, which is constructed of fully annealed aluminum wires formed into a trapezoidal shape.
Proceedings ArticleDOI
ACSS/TW-an improved high temperature conductor for upgrading existing lines or new construction
TL;DR: ACSS/TW as discussed by the authors is constructed of fully annealed aluminum wires formed into a trapezoidal shape, which are stranded around a steel core of seven or more wires as described in ASTM B-857.