نتایج جستجو برای: cable insulation
تعداد نتایج: 21500 فیلتر نتایج به سال:
در این پروژه برای تخمین عمر عایقی کابل های فشار قوی از روش های تحلیلی (ریاضی) و شبکه عصبی استفاده شده است. در تخمین عمر عایقی به روش تحلیلی، در یک مطالعه موردی عمر کابل های فشار قوی با عایق های پلی اتیلن کراس لینک و لاستیک اتیلن پروپیلن تحت تنش های الکتریکی-حرارتی، تغییرات بار و گذارهای حرارتی تخمین زده شده است. برای این منظور از مدل الکتریکی-حرارتی مناسب و مدل احتمالی ویبول استفاده شده است. عم...
Elmont d.o.o. Krško – We have spread our main scope of the services from electrical maintenance, modifications implementations and quality control to cable testing area. The reason for expanding was support Nuclear Power Plant Cable Aging Management program world trend LTE (Life Time Extension) in power plants. Scope work are identifying potential downgraded conditions safety operational import...
The electric field distortion caused by the high voltage current environment in cable terminal will greatly increase failure probability and reduce operation safety; therefore, it is necessary to ensure uniform distribution of terminal. This paper briefly introduced high-voltage non-linear materials. traditional silicone rubber added with nano-SiO 2 were prepared. electrical conductivity two ru...
The interface pressure between the cable attachment and body is crucial for stable long-term operation of cable. To solve issue insulation characteristics’ damage caused by transducer measurement method, a non-destructive testing method silicone rubber using nonlinear ultrasound presented. Initially, study analyzes propagation characteristics ultrasonic waves at cross-linked polyethylene rubber...
Abstract This study investigated the electric field distribution of underground cable insulation in cross-linked polyethylene/zinc oxide (XLPE/ ZnO) nanoparticles (NPs) for medium-voltage (MV) cables. The ZnO NPs that were obtained by three methods preparation classified using transmission electron microscopy (TEM). semi-spheres with sizes 35–55 nm on TEM images. XLPE/ films various NP weight c...
The present work deals with the study of electrical behavior cross-linked polyethylene (XLPE) used for HVDC cable insulation. aim is to better understand influences and thermal stresses on insulating material in order provide useful information designing cables. This was carried out Rogowski samples made XLPE insulation semiconductive electrodes, aged more than 3 years (1220 days) at three diff...
Abstract As of today, the problem lack non-destructive methods for assessing state and determining residual life insulation electrical cables is relevant cable lines in operation, especially that have exhausted their service life. The research presented framework this article aimed at creating a technique insulation. study was carried out using computer simulation basic theoretical laws physics...
The insulation fault is a major problem in high voltage cable lines. factors the faults are harmonic currents and metal sheath (MV) that occur on of cable. MV distortion should be minimized to prevent faults. Thus, sectional solid bonding with different grounding resistance (SSBr) method developed as new for minimizations current MV. Also, SSBr optimized by according minimum rate Inertia weight...
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