The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Thermal plastic material polypropylene (PP) has been considered as a promising candidate for recyclable insulation of power cable. However, the stiffness of PP is higher than that of XLPE which makes it difficult to be used directly as cable insulation. In this work, two kinds of elastomers, i.e. polyolefin elastomer (POE) and propylene-based elastomer (PBE), have been added into isotactic polypropylene...
Thanks to its large carrying capacity, excellent insulation property and high mechanical strength, insulated tubular bus has been widely used in power stations. Polytetrafluorethylene (PTFE) film which has been utilized as insulating material for the tubular bus is subjected to a great risk of thermal ageing that may degrade its electrical and mechanical properties. From the viewpoint of safety, it...
In order to study the breakdown characteristics of oilpaper insulation under compound electric field, the typical oil-pressboard insulation model was adopted according to the insulation structure in converter transformer. The electric field in oil and oil-impregnated pressboard was simulated according to the equivalent circuit for the above model, and the breakdown characteristic test for typical...
Polymer nanocomposite has recently drawn considerable attention because nanocomposites or nanostructured polymers have the potential of improving the electrical, mechanical, and thermal properties as compared to the neat polymers [1]. In this paper, the polymer nanocomposite was made by the mixed addition of SiO2 nanoparticle with the radio of 20 nm into room temperature vulcanized (RTV) silicone...
Epoxy resin laminate on which two copper electrodes were printed as printed circuit board (PCB) had been employed to investigate the effect of low pressure and magnetic field on dielectric breakdown at dc voltage application. The sample was placed in an artificial atmospheric chamber, which was reduced by a rotary pump from 100 kPa to 5 kPa. The magnetic field was produced by a couple of permanent...
A monolithic integration of trench power JFET with Schottky diode is proposed and analyzed. A unit JFET cell pitch of 1.1 um can be obtained. The specific on-resistance of the device is reduced to 14.4 mOmegamiddotmm2 which is close to state-of-art of power MOSFET. Two approaches for the integrated Schottky diode -junction barrier Schottky (JBS) and planar Schottky diode (PSD) - are analyzed and compared...
Phenolic resin laminate (PL) was employed to investigate the effect of magnetic field on migration rate of surface carbonization which is the primary reason for surface dielectric breakdown. A needle-plate electrode system was used and the distance between the electrodes was 4 mm. Experiments were carried out under dc pulse voltage with a frequency rang from 50 Hz to 100 Hz. The magnetic flux density...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.