Experimental determination of the zone of lightning protection
Journal Title: Електромагнітна сумісність та безпека на залізничному транспорті - Year 2017, Vol 1, Issue 14
Abstract
Goal. Explore the possibility of determining the zone of protection of lightning rod shafts un-der laboratory conditions. Urgency of work. Taking into account that protection of isolation of equipment of traction substations and contact network in traction power devices from atmos-pheric and switching overvoltage is currently relevant. In this regard, the definition of the zone of lightning rod protection in the laboratory is of practical interest, increases the efficiency of the educational process at the department and allows for the training of highly skilled specialists in the field of traction power supply. Results. This article describes the consequences of the devel-opment of a lightning strike between the cloud and the earth. The history of the formation of the principles of protection against direct lightning strikes is noted. The requirements for rod light-ning rods are specified The results of the experimental determination of the protection zone of the rod lightning-produced, obtained on models in the high-voltage laboratory of the University, are presented. A description of the circuit diagram of a high-voltage test facility is given. Based on the tests car-ried out, a calculated expression was obtained to determine the radius of the protection zone of the rod lightning rod model. Such studies will improve the quality of the learning process when studying ways to protect against direct lightning strikes of traction power supplies.
Authors and Affiliations
V. Diakov, O. Shevchenko
Keywords
Related Articles
- EP ID EP326943
- DOI -
- Views 109
- Downloads 0
Microprocessor systems of electric interlocking with the application of optical fiber telecommunication cables on the Railways of Ukraine
The aim of paper is an analysis of the existing types of fiber-optical lines, an evaluation of the advantages and disadvantages arising at the maintenance of its and determination of the direction in the modernization of...
The method for detecting defects in movable armature of the signalling relay
Despite significant progress in the development of microelectronic rail automatic systems ob-served in recent decades, relay-contact devices are still widely used in railway signalling systems, that are fundamental to th...
The comparative analysis of calculating methods for ac impedance of R65 type rails and track 1520 mm gauge in the audio frequency range
Knowledge of the exact AC rail impedance in a wide frequency range is necessary for de-signing and modeling audiofrequency track circuits, determining of the traction return current distribution in rails of high-speed ra...
New strategies of freight wagons repair and maintenance
The main target of repair and maintenance system (hereinafter referred to as RMS) is target reliability rate maintenance at all stages of rolling equipment technical operation. Development and implementation of improved...
Distribution network reconfiguration using modified imperialist competitive algorithm
Objective. A modified imperialist competitive algorithm adapted to find the optimal distribu-tion network configuration with minimum active power losses is proposed. Technique. The pro-posed algorithm was used to solve t...