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Magnetic losses and reactance change by the use of metallic conduit in electrical installations; Perdidas magneticas y cambio de reactancia por la tuberia metalica en instalaciones electricas

Abstract

In this paper are presented the results obtained in the measurement of magnetic losses in metallic conduits in electric installations. The losses for parasitic currents and by hysteresis were obtained in different conditions of magnetic density, caused by the net current resulting from the sum of all the currents of all the conductors that travel along the conduit. These currents are named differential currents, and the conditions in which they appear in the electric installations are described. The magnetic induction phenomenon that occurs in metallic conduit is briefly described and the basic concepts that describe it. A theoretical-experimental methodology is offered to quantify the energy losses by parasitic currents and by the metal magnetization in these metallic conduits. At the same time, the impact of these differential currents impact in the reactance of the electric installation is quantified. The obtained results for twelve conduits of different diameters and different wall thickness are shown. A comparison analysis is made with the reported results in a previous article, where the losses were estimated by means of the temperature rise measurement of the metallic wall. [Espanol] En este articulo se presentan los resultados obtenidos en la medicion de perdidas magneticas en tuberias conduit  More>>
Authors:
Campero Littlewood, Eduardo; Castaneda D, Miguel; Castulo A, Roberto; Bratu Serban, Neagu [1] 
  1. Universidad Autonoma Metropolitana-Azcapotzalco, Mexico, D. F. (Mexico)
Publication Date:
Dec 31, 1996
Product Type:
Miscellaneous
Report Number:
CONF-9611244-
Reference Number:
SCA: 320107; PA: MX-98:000051; EDB-99:041458; SN: 98002000315
Resource Relation:
Conference: 17. national seminar on the rational use of the energy and exposition of equipment and services, 17. seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios, Mexico (Mexico), 25-29 Nov 1996; Other Information: PBD: 1996; Related Information: Is Part Of 17. national seminar on the rational use of the energy and exposition of equipment and services. Transactions; PB: 722 p.; 17. seminario nacional sobre el uso racional de la energia y exposicion de equipos y servicios. Memoria tecnica
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CONDUCTOR DEVICES; HYSTERESIS; ENERGY LOSSES; PIPES; ELECTRIC CURRENTS; NUMERICAL DATA
OSTI ID:
331566
Country of Origin:
Mexico
Language:
Spanish
Other Identifying Numbers:
Other: ON: DE99717744; TRN: MX9800051
Availability:
Available from Asociacion de Tecnicos y Profesionistas en Aplicacion Energetica (ATPAE), Av. Revolucion 728, Oficina 15, Col. Nonoalco Mixcoac, C.P. 03700, Mexico D. F. (Mexico), Tel./Fax: (5) 611 9280; OSTI as DE99717744
Submitting Site:
MX
Size:
pp. 407-414
Announcement Date:

Citation Formats

Campero Littlewood, Eduardo, Castaneda D, Miguel, Castulo A, Roberto, and Bratu Serban, Neagu. Magnetic losses and reactance change by the use of metallic conduit in electrical installations; Perdidas magneticas y cambio de reactancia por la tuberia metalica en instalaciones electricas. Mexico: N. p., 1996. Web.
Campero Littlewood, Eduardo, Castaneda D, Miguel, Castulo A, Roberto, & Bratu Serban, Neagu. Magnetic losses and reactance change by the use of metallic conduit in electrical installations; Perdidas magneticas y cambio de reactancia por la tuberia metalica en instalaciones electricas. Mexico.
Campero Littlewood, Eduardo, Castaneda D, Miguel, Castulo A, Roberto, and Bratu Serban, Neagu. 1996. "Magnetic losses and reactance change by the use of metallic conduit in electrical installations; Perdidas magneticas y cambio de reactancia por la tuberia metalica en instalaciones electricas." Mexico.
@misc{etde_331566,
title = {Magnetic losses and reactance change by the use of metallic conduit in electrical installations; Perdidas magneticas y cambio de reactancia por la tuberia metalica en instalaciones electricas}
author = {Campero Littlewood, Eduardo, Castaneda D, Miguel, Castulo A, Roberto, and Bratu Serban, Neagu}
abstractNote = {In this paper are presented the results obtained in the measurement of magnetic losses in metallic conduits in electric installations. The losses for parasitic currents and by hysteresis were obtained in different conditions of magnetic density, caused by the net current resulting from the sum of all the currents of all the conductors that travel along the conduit. These currents are named differential currents, and the conditions in which they appear in the electric installations are described. The magnetic induction phenomenon that occurs in metallic conduit is briefly described and the basic concepts that describe it. A theoretical-experimental methodology is offered to quantify the energy losses by parasitic currents and by the metal magnetization in these metallic conduits. At the same time, the impact of these differential currents impact in the reactance of the electric installation is quantified. The obtained results for twelve conduits of different diameters and different wall thickness are shown. A comparison analysis is made with the reported results in a previous article, where the losses were estimated by means of the temperature rise measurement of the metallic wall. [Espanol] En este articulo se presentan los resultados obtenidos en la medicion de perdidas magneticas en tuberias conduit (metalicas) en instalaciones electricas. Las perdidas por corrientes parasitas y por histeresis se obtuvieron para diferentes condiciones de densidad magnetica, provocada por la corriente neta resultante de la suma de las corrientes de todos los conductores que viajan por la tuberia. A estas corrientes se les designa corrientes diferenciales y se describen las condiciones en las que estas aparecen en las instalaciones electricas. Se explica brevemente el fenomeno de induccion magnetica que se presenta en las tuberias metalicas y los conceptos basicos que la describen. Se plantea una metodologia teorico-experiemental para cuantificar las perdidas de energia, por corrientes parasitas y por la magnetizacion del metal en estas tuberias conduit. Al mismo tiempo se cuantifica el impacto de estas corrientes diferenciales en la reactancia de la instalacion electrica. Se muestran los resultados obtenidos para doce tubos de diferente diametro y espesor de pared. Se hace un analisis comparativo con los resultados reportados en un articulo anterior, donde las perdidas se estimaron mediante la medicion del incremento de temperatura de la pared metalica.}
place = {Mexico}
year = {1996}
month = {Dec}
}