Results 1 to 10 of about 192,055 (298)

Impact of Cable Configuration on the Voltage Induced in Cable Screen during Work with One-Sidedly Ungrounded Cable Screen [PDF]

open access: yesEnergies, 2021
In the latest research, it has been proven that from the point of view of losses in a cable distribution line, the most advantageous operation is to work with two or one phase of metallic cable screen ungrounded. However, such an operation may cause changes in the network characteristics and thus the occurrence of undesirable phenomena.
Aleksandra Schött-Szymczak   +1 more
openaire   +3 more sources

Monitoring of MV Cable Screens, Cable Joints and Earthing Systems Using Cable Screen Current Measurements [PDF]

open access: yesEnergies, 2020
The paper presents the possibility of using cable screen earthing current measurements for MV, single-core cable line monitoring. Cable screen earthing current measurement allows the condition of cable screen connections, degradation of earthing systems, and the earthing system integrity to be observed, which allows a condition based maintenance (CBM ...
Krzysztof Lowczowski   +4 more
openaire   +3 more sources

Analysis of Cable Screen Currents for Diagnostics Purposes [PDF]

open access: yesEnergies, 2019
This paper presents current flow in cable screens and a cable screen earthing system. Moreover, the paper presents the methodology for the detection of problems in cable screens, such as open phase in a cable screen and high contact resistance of a cable screen in a cable joint.
Krzysztof Lowczowski   +2 more
openaire   +3 more sources

Experiences with cable faults located at metallic screen connections [PDF]

open access: yesCIRED - Open Access Proceedings Journal, 2017
Overheating of metallic ground screen connections at accessories of single core cables are the root cause of severe insulation failures in the distribution network. The overheating is due to a high transition resistance of the connections combined with high induced currents in the ground screens during operation.
Halvorson, Hans Lavoll   +3 more
openaire   +2 more sources

Spectral Index of the Diffuse Radio Background Measured From 100 to 200 MHz [PDF]

open access: yes, 2008
The mean absolute brightness temperature of the diffuse radio background was measured as a function of frequency in a continuous band between 100 and 200 MHz over an effective solid angle of ~pi str at high Galactic latitude.
Alan E. E. Rogers   +16 more
core   +2 more sources

Pre-determination of partial discharge inception voltage in power cables using electrode gaps in air under AC voltage [PDF]

open access: yes, 2017
The breakdown of insulation in cables while in service can cause considerable damage to equipment and the accessories to which they are connected. PD in cables arises due to the overstressing of cable insulation resulting from electric field enhancement ...
Morris, Euan A.   +4 more
core   +1 more source

Electric Field Determination in DC Polymeric Power Cable in the Presence of Space Charge [PDF]

open access: yes, 2007
The pulsed electroacoustic (PEA) technique was used to perform space charge measurements in polymeric power cables. However, for a practical dc power cable the electric field is affected by conductivity of the material, which is a function of both ...
Chen, George, Choo, Wilson
core   +1 more source

Characterizing HV XLPE cables by electrical, chemical and microstructural measurements on cable peeling: Effects of surface roughness, thermal treatment and peeling location [PDF]

open access: yes, 2000
Characterization of the electrical, chemical, and microstructural properties of high voltage cables was the first step of the European project “ARTEMIS”, which has the aim of investigating degradation processes and constructing aging models for the ...
Dissado, L. A.   +9 more
core   +1 more source

Screening attenuation of coaxial cables determined in GTEM-cells [PDF]

open access: yesAdvances in Radio Science, 2005
Abstract. This paper describes the determination of the screening attenuation with a GTEM cell. An analytical part gives the link between the voltage at the cell port and the total radiated power. The next section investigates the optimal cable setup in the cell.
A. Knobloch, H. Garbe
openaire   +2 more sources

Development of an integrated remote monitoring technique and its application to para-stressing bridge system [PDF]

open access: yes, 2013
Bridge monitoring system via information technology is capable of providing more accurate knowledge of bridge performance characteristics than traditional strategies. This paper describes not only an integrated Internet monitoring system that consists of
Casas Rius, Joan Ramon   +2 more
core   +2 more sources

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