EXPERIMENTAL INVESTIGATIONS OF ELECTRO-THERMAL RESISTIBILITY OF CONDUCTORS AND CABLES TO ACTION OF RATIONED ON THE INTERNATIONAL STANDARD IEC 62305-1-2010 APERIODIC IMPULSE OF CURRENT OF ARTIFICIAL LIGHTNING
Journal Title: Електротехніка і Електромеханіка - Year 2016, Vol 0, Issue 1
Abstract
Purpose. Experimental researches of electro-thermal resistibility of cable-explorer products, applied in the power electric circuits of objects of electric-power industry, to action on its copper and aluminum parts bearings a current rationed on the International Standard of IEC 62305-1-2010 aperiodic impulse 10/350 μs of current of artificial lightning. Methodology. Electrophysics bases of technique of high tensions and high pulsed currents (HPC), and also scientific and technical bases of planning of devices of high-voltage impulsive technique and measuring HPC in them. Results. Experimental a way the quantitative levels of maximal values maximum of possible and critical closenesses of aperiodic impulse 10/350 μs of current of artificial lightning with rationed on the international standard of IEC 62305-1-2010 peak-temporal parameters and admittances on them in copper (aluminum) parts bearings a current of send-offs and cables with a polyethylene (PET) and polyvinylchloride (PVCH) isolation. Originality. First in world practice on the unique powerful high-voltage generator of HPC of artificial lightning experimental researches of resistibility to lightning of pre-production models of send-offs (cables) are conducted with copper (aluminum) tendons, PET and PVCH by an isolation, in-use in power electric circuits of electric-power industry objects. Practical value. The use in practice of protecting from lightning of the got results will allow substantially to promote functional and fire-prevention safety of engineering communications of objects of industrial electroenergy in the conditions of action on them of short shots of linear lightning.
Authors and Affiliations
M. I. Baranov, S. V. Rudakov
ORTHOGONAL COMPONENTS OF THE THREE-PHASE CURRENT AT ASYMMETRICAL ACTIVE-REACTIVE LOAD IN 4-WIRE CIRCUIT
Purpose. For the unbalanced sinusoidal mode with asymmetric voltage in 3-phase 4-wire to receive the orthogonal 4-component decomposition of 3-phase current, are classified symmetry/asymmetry of active and reactive load...
DETERMINATION OF RAILWAY ROLLING STOCK OPTIMAL MOVEMENT MODES
Purpose. To develop a methodology for simulating of an electromotive railway rolling stock in terms of power-optimal modes on a track with a given profile and a set motion graph. Methodology. We have used combined geneti...
NUMERICAL ESTIMATES OF ELECTRODYNAMICS PROCESSES IN THE INDUCTOR SYSTEM WITH AN ATTRACTIVE SCREEN AND A FLAT RECTANGULAR SOLENOID
Purpose. To carry out numerical estimates of currents and forces in the investigated inductor system with an attractive screen (ISAS) and determine the effectiveness of the force attraction. Methodology. The calculated r...
MAGNETIC FIELD IN A GAP OF ELECTROMECHANICAL DISINTEGRATORS
The magnetic field created in an air gap of electromechanical disintegrators as a result of actions of two opposite running magnetic fields is considered. It is shown that motionless pulsing fields are as a result formed...
AN OBJECT-ORIENTED FIELD MODEL OF ELECTROMECHANICAL TRANSFORMERS OF ENERGY
Results of theoretical investigations are presented, forming of class structure of electromechanics transformers of energy is shown, the generation of the field models on the basis of principles of the object-oriented an...