ON THE TRANSFER OF POWER SUPPLY OF 27, 5 kV SCB TO THE NON-TRACTIVE WINDING AT THE TRACTION SUBSTATION OF ALTERNATING CURRENT

Авторы: 
Дата поступления: 
28.09.2018
Библиографическое описание статьи: 

Tuigunova A. G., Khudonogov I. A., Puzina E. Yu. O perevode pitaniya stsb s 27,5 kV na netyagovuyu obmotku na tyagovoi podstantsii peremennogo toka [On the transfer of power supply of 27,5 kV SCB to the non-tractive winding at the traction substation of alternating current]. Sovremennye tekhnologii. Sistemnyi analiz. Modelirovanie [Modern technologies. System analysis. Modeling], 2018, Vol. 60, No. 4, pp. 93–98.  DOI: 10.26731/1813-9108.2018.4(60).93-98

Рубрика: 
Год: 
2018
Номер журнала (Том): 
УДК: 
621.331:625.1
DOI: 

10.26731/1813-9108.2018.4(60).93-98

Файл статьи: 
Страницы: 
93
98
Аннотация: 

Signaling, centralization and blocking devices (SCB) are a set of technical means used for regulating and ensuring the safe movement of trains at block sections and stations. The SCB devices have a significant impact on improving traffic safety, improving transportation and carrying capacity of block sections and stations, better use of the rolling stock, and increase of labour productivity. The widespread occurrence and improvement of signaling, centralization and blocking devices requires increasing the reliability of their electricity supply. At present, at most sections of the railroad of an alternating current, electrical power supply of the lines feeding power to the SCB devices is executed from a tractive winding of the power oily transformer of the tractive substation. Therefore, there is a direct dependence of a voltage level of electrical power supply of the SCB devices and a contact network from a voltage level on buses of the substation. Increase in volumes of the transported freights results in the constant growth of the consumed energy resources, and respectively leads to increase in requirements for indicators of quality of the electric power in electrical networks. Also, this results in the increase in reliability of work of power supply of points and automatic lockout feeder lines, high-voltage lines of the SCB and its separate elements. The presence of several trains in a zone between substations exerts considerable impact on the voltage level in the contact network. This leads to the tendency of non-compliance with the voltage deviation in the specified acceptable range. The article provides a scheme of the translation of SCB line from the tractive winding to the non-tractive one, and necessary actions. It is proposed to execute a supply of feeders of autoblocking of adjacent tractive substations from two modules powered from buses of own needs.

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