HEAT TESTS OF POWER CABLES WITH XLPE INSULATION AT DIRECT VOLTAGES UP TO 110 KV
Journal Title: Електротехніка і Електромеханіка - Year 2015, Vol 0, Issue 6
Abstract
In this paper, experiment for determining the temperature difference between the elements of cable and in the open air is considered. The formation of a three cables laid in a plane with different spacing between adjacent cables. Tests to heat of cables for XLPE-polyethylene are used as a solid dielectric insulation. The line to XLPE-cables in group running horizontally, provided that the cables are of equal diameter and emit equal losses. It is limited to the following: the air flow around the cables may be necessary restricted by proximity to next cables. When single-core cables are installed in parallel the load current may not share equally between the parallel cables. This is because a significant proportion of the impedance of large conductors is due to self reactance and mutual reactance. Hence the spacing and relative location of each cable will have an effect on the current sharing. Calculation for each cable configuration is necessary. Possibility of using for determining the thermal properties of XLPE-cables a sheath applied over the cable surface with coefficient convection heat transfer between cable surface and the air region about it of equal zero. The work is devoted to creation of a method for calculation of the current rating of high-voltage cables in conditions function.
Authors and Affiliations
T. Yu. Antonets, Yu. M. Vepryk, L. A. Shchebeniuk
Keywords
Related Articles
- EP ID EP299154
- DOI 10.20998/2074-272X.2015.6.07
- Views 62
- Downloads 0
A COMPARATIVE ANALYSIS OF CONSTRUCTIVE SCHEMES OF LINEAR IMPACTOR ELECTROMECHANICAL CONVERTERS COMBINED TYPE
The concept of linear impactor electromechanical converter combined type with a single inductor excited by capacitive energy storage aperiodic pulse is proposed. The concept combines induction and electromagnetic convert...
AN ANTHOLOGY OF THE DISTINGUISHED ACHIEVEMENTS IN SCIENCE AND TECHNIQUE. PART 32: ALTERNATIVE ENERGY: STATE AND PROSPECTS OF DEVELOPMENT
Purpose. Implementation of brief analytical review of the state and prospect of development in the modern world of alternative energy, including wind energy, sun energy, geothermal energy, biogas energy, flood-tide water...
AN ANTHOLOGY OF THE DISTINGUISHED ACHIEVEMENTS IN SCIENCE AND TECHNIQUE. PART 36: NOBEL PRIZE LAUREATES IN PHYSICS FOR 1995-1999
Purpose. Implementation of brief analytical review of the distinguished scientific achievements of the world scientists-physicists, awarded the Nobel Prize in physics for period 1995-1999. Methodology. Scientific methods...
DEVELOPMENT OF METHODS AND MEANS OF COMPUTER SIMULATION FOR STUDYING ARC FURNACE ELECTRIC MODES
Goal. The purpose of the article is the creation of a three-phase instantaneous coordinates Simulink computer model of the power supply and automatic coordinates control system (ACS) of the DSP-200 type arc furnace elect...
A COMPUTERIZED DIAGNOSTIC COMPLEX FOR RELIABILITY TESTING OF ELECTRIC MACHINES
Purpose. To develop a diagnostic complex meeting the criteria and requirements for carrying out accelerated reliability test and realizing the basic modes of electric machines operation and performance of the posed probl...