Having loaded the last parts of a 35 kV switchboard last December, we started planning the assembly work together with our customer, the state-owned company Energoatom and its subsidiary Atomkomplekt. At that moment, none of us could not imagine what challenges we, or in fact the whole world, would face.
The new situation favours improvisation in which we, the Czechs, are considered the world-class. The installation of our 35/6 kV switchboard started in mid-March in order to enable the new technology of additional cooling of essential service water (ESW) to fulfil its purpose, i.e. to cool water sufficiently in the summer months for the maximum output of all three production units. At first the containers important especially for the control of the switchboard and the supply of its own consumption were assembled. In the next phase, the assembly of two power transformers, each with 40 MVA output, was started. As you can see from the attached photographs, it is being assembled even under such difficult conditions, which do not allow the presence of our specialists, who would normally provide assistance to the assembly groups through supervision. Here, modern means of communication come to the rescue, which enable us to give accurate instructions to the assemblers in the form of videoconferences. Despite these difficult conditions, we believe that the entire switchboard will be ready for technological start-up by the end of the second quarter of 2020.
Our deliveries and engineering within this project include:
- 35 kV outdoor switchyard
- two 40 MVA power transformers
- air-insulated 6 kV switchboard
- insulated 6 kV wires
- technological containers for the installation of protection, control, invoicing measurement and own monitoring system of TRAMON® transformers, secured power supply of the switchboard's own consumption, sanitary container
- system of protection, control, invoicing measurement and secured power supply of the switchboard's own consumption
- own monitoring system of TRAMON® transformers
- distribution transformers and low-voltage switchboards to provide power to the pumping station of additional ESW cooling
- special tools, thermal imaging cameras, special measuring instruments used during installation and servicing of the supplied equipment