Each object, regardless of its purpose, be it a large industrial enterprise or a shopping and entertainment complex, a multi-storey building or a private house, needs high-quality power supply.
The first step towards obtaining the necessary electricity is external power supply.


The Concern Ksimex company develops projects for external power supply for a voltage of 0.4 -35 kV. An important aspect for our customers is the uninterrupted power supply of their facilities.

High-quality power supply primarily depends on:
  • correctly selected category of power supply reliability;
  • rational use of the power of power transformers;
  • competent construction of electrical circuits of switchgear;
  • the use of built-in and free-standing transformer substations;
  • the use of dry or oil-immersed power transformers;
An individual approach to the construction part of the transformer substation allows for a reduction in dimensions and optimal placement at the facility. A wide range of Schneider Electric switchgears for voltages of 35 kV, 10 kV, 6 kV and 0.4 kV allows you to choose the best option, taking into account the characteristics of the object, the environment of the switchgear, as well as the dimensions of the room in which the switchgear is located. This equipment allows to ensure uninterrupted power supply of the facility with the optimal implementation of the selected category of power supply reliability.


The development of a transformer substation project includes the implementation of actions necessary to solve a whole list of tasks from determining the most suitable place for placing a transformer substation to choosing electrical equipment that will be part of the facility.
The main requirements for the design of a transformer substation are to ensure the following conditions:
  • high-quality and uninterrupted power supply to consumers;
  • operational safety and functionality of the installation;
  • ensuring economic efficiency during the operation of supply and distribution electrical networks
The finished project contains comprehensive information regarding the design features of the projected transformer substation:
  • explanatory note and estimate for the construction of a transformer substation;
  • diagrams, drawings and calculations on which the project is based and which representatives of the electrical installation organization will use in their activities;
  • information about devices and materials that will be included in the kit required for installation (technical characteristics, required quantity, etc.).
The design of a transformer substation plays a huge role not only at the initial stage of construction, but in the continuation of its entire process. In our practice, there are also non-standard tasks that have been successfully solved by us. Among them, the design and construction of underground transformer substations at a depth of 8 meters in three projects in Alupka (2013)


In recent years, the use of single-core XLPE insulated cables has become a standard for 6 (10kV, 35kV) networks.
The advantages of XLPE single core cables are:
  • increased load capacity;
  • high thermal stability during short-circuit currents;
  • low weight and smaller outer diameter, which makes it easier to lay cables, especially on difficult sections of cable routes and on routes with unlimited level difference;
  • smaller permissible bending radius of cables;
  • simple technology for installing couplings and repairing cables;
  • large face-to-face lengths.
The main ways of laying cable lines are:
  • laying of cable lines in earth trenches;
  • laying of cable lines in cable blocks, cable pipe systems and reinforced concrete trays;
  • laying of cable lines in cable structures (tunnels, overpasses, galleries);
  • laying of cable lines in production facilities.