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.
In this paper the magnetic flux calculation is presented on a cross-section inside a multi-wire conductor in which the aluminum wires are turned helically over a steel-core. The magnetic field is analyzed as depending on the turning step, the characteristics of the steel-core and the geometrical dimensions of the multi-wire conductor. Finite element method is used in this analysis, implemented in...
Detecting defects in transmission and distribution networks of electricity needs to be analyzed solving transient regimes. The complexity of electrical circuits associated to power grids requires the use of numerical methods for transient analysis. This paper uses PSpice program for analyzing transient faults caused by three phase short-circuits. Because a three-phase short circuit is symmetrical,...
The paper presents a numerical model that allows the calculation of the magnetic flux produced by current through the wires of a multiple conductor, helically wrapped over the steel core, the size of wires which compose the conductor being provided. The numerical model is implemented in finite element software package Vector Fields Opera. The numerical results were compared with those experimentally...
Phase conductors of overhead power lines are made of wires, which contain an aluminum conductive area and an area of steel to ensure strength. The aluminum wires are wrapped helically over the area of cylindrical steel. The paper shows the calculation of total induction of conductor. Calculations were performed considering homogeneous medium with permeability μ0 and the cable filamentary conductors...
Phase conductors of overhead power lines are made of wires, which contain an aluminum conductive area and an area of steel to ensure strength. The aluminum wires are wrapped helically over the area of cylindrical steel. The paper shows the calculation of magnetic field intensity in any point inside the helical coil. Calculations were performed considering homogeneous medium with permeability μ0 and...
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.