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Re-cabling Elevates Energy Security in Baku Metro

Re-cabling Elevates Energy Security in Baku Metro

24 JANUARY / 2024 / 09:53

The movement of trains is a critical area, with every innovation and innovative solution playing a special role in enhancing safety. The year 2023 has been notable, mainly in three directions, for special works in this regard.

The cable lines in the most crucial directions from the traction substations that power the train movement to where the lines converge have been completely renewed. Considering that trains operate on electrical energy, this renewal is the most significant positive innovation for the safety of movement. A total of 18,636 meters of 6 kV branded cable lines have been renewed and laid in directions and residential roads such as "28 May", "Ganjlik", "Sahil", "Icherisheher", "Khatai", "Nizami", as well as to district substations. Additionally, considering 5,400 meters of 10 kV branded cables from various directions from the capital's district substations to the metro, and also in different apartments, 34,450 meters of various diameter cable routes including 0.4 kV and 0.23 kV cables have been rebuilt.

All these represent the implementation of a crucial safety measure, namely the complete reconstruction of lines, which have been a vital part of the main electric supply since 1967. As a continuation of this work throughout the year, an additional 17,973 meters of cable lines have also been renewed, considering shafts, machine halls, under-platform areas, cable collectors, depots, etc.

Another significant innovation related to the electric economy over the year has been the construction and reconstruction of substations. One of these was related to the construction of the electric supply for a station with the provisional name "B-04". The reconstruction project of the "28 May" substation has been fully resolved, with the manufactured equipment shipped to Baku. This was facilitated by productive visits of Baku metro representatives to Austria and visits by the leadership and experts of "Siemens" to Baku.

There have been enough innovations in ensuring the operation of equipment and systems during periodic repair and renewal activities in areas and electric substations. Notable installations include 3 power transformers at the "Academy of Sciences" and "28 May" (II exit) stations, and 70 accumulator batteries at the "Khatai" substation.

Innovations in the lighting system have significantly improved both the technical and the architectural appearance of the stations. Reconstruction was applied at the "Academy of Sciences", "20 January", "Qara Qarayev", and "Sahil" stations, as well as in two technical inspection-service areas of the "Narimanov" electric depot, leading to the application of modern systems, primarily saving electrical energy. Maintenance of these systems has become easier and simpler.

The third most important innovation in energy supply for the year has been the commissioning of a new autolaboratory. Equipped with high-technology equipment, the vehicle allows for the rapid and accurate identification of faults, their depth, and the nature of defects in high-voltage cables up to 35 kV.