The Detailed Representation and Computation of the Traction Network and its Application to the Transient Analysis in Electrified Railways

2021 ◽  
Author(s):  
Yating Zhai ◽  
Mingli Wu ◽  
Yichen Ying ◽  
Jing Li
Keyword(s):  
Transient Analysis ◽  
Traction Network ◽  
Electrified Railways

scholarly journals Determination of Electromagnetic Influence of 25 kV AC Electric Traction Network on 10 kV High-Voltage Overhead Line

2021 ◽  
Vol 2096 (1) ◽  
pp. 012078
Author(s):  
O V Zalesova
Keyword(s):  
High Voltage ◽  
Short Circuit ◽  
Electrical Equipment ◽  
Point Of View ◽  
Overhead Line ◽  
Induced Voltage ◽  
Operating Personnel ◽  
Overhead Lines ◽  
Traction Network ◽  
Electrified Railways

Abstract Electrified railways include a system of cable and overhead lines. An analysis of the operation of alternating current (AC) electrified railways sections shows that the value of the induced voltage caused by the operation of the traction network can significantly exceed the permissible level on adjacent disconnected high-voltage overhead lines. As a consequence, this leads to serious injuries to operating personnel, including deaths, failure of electrical equipment. From this point of view, 1x25 kV 50 Hz AC railway system networks are considered the most dangerous. The electromagnetic influence of the traction network of a double-track section of an AC railway on an adjacent 10 kV high-voltage overhead line for power supply of automatic block signalling is investigated in the offered paper. Emergency cases of traction network operation are considered: short-circuit situation and forced state. The calculations of short-circuit currents in the influencing inter-substation zone, as well as estimation of the induced voltage on the wires of the 10 kV disconnected high-voltage overhead line for various schemes of grounding, have been performed. The investigations were carried out on models built using the ATP-EMTP program.

TRANSIENT ANALYSIS OF HEAT TRANSFER IN PARALLEL SQUARED CHANNELS FOR HIGH TEMPERATURE THERMAL STORAGE

2015 ◽  
Vol 7 (5-6) ◽  
pp. 477-489 ◽  
Author(s):  
Assunta Andreozzi ◽  
Bernardo Buonomo ◽  
Oronzio Manca ◽  
Salvatore Tamburrino
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Transient Analysis ◽  
Thermal Storage

Calculation of Short-Circuit Fault Currents in an Electric Traction Network with Double Ended Power Supply

2019 ◽  
Vol 5 (5) ◽  
pp. 19-23
Author(s):  
Leonid A. GERMAN ◽  
◽  
Alexandr S. SEREBRYAKOV ◽  
Aleksey B. LOSKUTOV ◽  
Vladimir L. OSOKIN ◽  
...  
Keyword(s):  
Power Supply ◽  
Short Circuit ◽  
Fault Currents ◽  
Traction Network ◽  
Electric Traction ◽  
Short Circuit Fault
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