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In October 2019, PJSC Nizhnekamskneftekhim completed works on the change of outdoor switchgear equipment at the main step-down substations (MSDS) of the outdated “breaker isolated switch - short-circuit throwing switch” system with 110 kV gas-insulated circuit breakers. Thus, the company's power engineers completed one of the complex stages of organizational and technical activities for the change of equipment and implementation of solutions of the meeting protocol of Nizhnekamsk energy district of the Republic of Tatarstan dd 13.07.2013 dealing with improvement of the reliability of power supply to industrial consumers.
The breaker isolated switch - short-circuit throwing switch systems at the main step-down substations have been used since 1960, and their change was required with the increase of production capacity and the improvement of technological processes. They have no longer met up-to date requirements for the reliability of energy supply, allowing irregularities in the power supply of the entire industrial hub.
To ensure reliable and uninterrupted power supply to the plants and production facilities, it was necessary to remove the “breaker isolated switch - short-circuit throwing switch " systems from the power supply schemes. From 2006 to 2019, the change of the outdated equipment has been continuously carried out. In the first and second industrial areas of the joint stock company, the equipment worth more than 1 billion rubles has been changed at 15 main step-down substations.
The equipment has been replaced complete with relay protection devices at microprocessor protection devices.
The new installed equipment meets all modern requirements for the reliability of power supply, including those in case of emergency. It identifies a damaged part of the network with no occurrence of irregularities in the entire power supply circuit.
The completed stage of changing the outdated electrical equipment, as well as the ongoing works on replacing of 6 kV switchgears and the introduction of high-speed automatic transfer switches, altogether will significantly enhance the reliability of power supply to the production of PJSC Nizhnekamskneftekhim and the TAIF Group of Companies.
Thus, the conditions have been established for reliable operation of process units producing materials and reducing environmental impact.
Press service PJSC Nizhnekamskneftekhim
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