IMPROVEMENT OF DIELECTRIC STRENGTHS FOR CROSS-LINKED POLYETHYLENE (XLPE) MEDIUM VOLTAGE CABLES
نویسندگان
چکیده
منابع مشابه
High Frequency Characteristics of Medium Voltage XLPE Power Cables
The response of a cable can be used to analyze the variation of the material characteristics along its length. For diagnosis of possible ageing, it is necessary to know how cable design, material properties and cable insulation ageing affects the wave propagation. A cable model has therefore been worked out based upon the high frequency properties of the cable insulation and conductor systems. ...
متن کاملOn-line time domain reflectometry diagnostics of medium voltage XLPE power cables
Degradation of XLPE insulated power cables by water-trees is a primary cause of failure of these cables. The detection of water-trees and information about the severity of the degradation can be obtained with off-line measurement using dielectric spectroscopy. In many situations only a limited part of the cable may be degraded by the water-trees. In such a situation a method for localization of...
متن کاملAn Accelerated Wet Ageing Test on Meduim Voltage Xlpe Cables
The failure of medium voltage (MV) cables in North Queensland has led Ergon Energy to consider the relative economics of refurbishment or replacement. In order to provide data to inform decision making, an accelerated ageing program has been designed to investigate the ageing of new, field aged, and refurbished cables. This paper describes the considerations affecting the design of the ageing e...
متن کاملتخمین عمر عایقی کابل های فشار قوی XLPE تحت تنش های حرارتی، الکتریکی و همزمان
The aging of insulating materials can be estimated by an electrical breakdown occurring in electrical components so that the relationship between lifetime, failure probability and reliability of electrical components may be studied using the life models in high voltage cables networks. In last decades with attention to higher features as electrical, thermal, mechanical characteristic, widely cr...
متن کاملThe effect of composition and processing on electric characteristics of XLPE for use in HVDC cable applications
Polyethylene exhibits many key characteristics including low dielectric loss, high breakdown strength and good processability. Most modern extruded high voltage cables employ cross-linked polyethylene (XLPE) as the insulation material. The main advantage of XLPE is its excellent thermo-mechanical properties; it is relatively cheap and has low dielectric loss and low conductivity making it an id...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Research -GRANTHAALAYAH
سال: 2019
ISSN: 2350-0530,2394-3629
DOI: 10.29121/granthaalayah.v7.i2.2019.1024