Improving the protection of the traction network of mining enterprises

The analysis of the existing network of traction power supply of cuts and access roads of mining enterprises, the features of its functioning in cuts and leads to main railways, its identification with the traction network of main railway transport, the possibilities of using innovative protection methods and methods of their adjustment in order to improve reliability functioning, level of automation of the control system for feeders of the traction network (FCS) of mines and access roads of mining enterprises. The FCS equipment of mining enterprises is analyzed, the effectiveness of the use of new switching equipment and new principles of protection and automation is shown. The basics of the functioning of classical analog protection and an improved method for its adjustment are outlined. The expediency of using digital terminals together with analog protection and ways of further improvement of protection are shown. An analysis of the state and functioning of traction networks and traction substations of mining enterprises, for example, coal and ore mines in Kuzbass, showed that, with almost complete identity of functions, their technical level and level of operation lags behind the level of the main railways with which they are joined and in practice, they are often combined by a single technological process for the transportation of products. The purpose of this article is to present the innovative experience of railways and recommend ways to modernize the most critical elements of the electric traction power supply system of mining enterprises.

Kuznetsov S. M., Lisitsyn P. S. Improving the protection of the traction network of mining enterprises. MIAB. Mining Inf. Anal. Bull. 2022;(12-2):157—173. [In Russ]. DOI: 10.25018/0236_1493_2022_122_0_157.

Kuznetsov S. M.¹, Cand. Sci. (Eng.), Associate Professor, e-mail: ksmetk@mail.ru;
Lisitsyn P. S.¹, assistant, e-mail: lisic9@mail.ru;
¹ Novosibirsk State Technical University.

Kuznetsov S. M., e-mail: ksmetk@mail.ru.

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