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Replacement of reactors in Balti substation


Civil engineering

Energy supply

Concrete works


Description of work




The power transformer’s medium-voltage shunt reactors are being replaced at Balti substation. In the course of the work, the existing switchgear will be dismantled and a 20 kV switchgear will be built in its place with one 30 MVA and one 20 MVA reactors. The construction is taking place using the turnkey method.

On 1 July 2021, Merko Ehitus Eesti acquired a stake in Connecto Eesti, and the Merko electrical construction business line merged with Connecto. Acting jointly under the Connecto brand makes it possible for us to offer a significantly broader range of services – in addition to the design, construction and maintenance of low, medium and high voltage electricity networks, Connecto also operates in the field of telecommunications and gas networks.

View the works performed by Connecto.

Elering AS
Name of the project:
Replacement of reactors in Balti substation
Energy supply
Type of construction:
AS Merko Infra
Description of work:
New building
Elektrijaama road 29, Narva
Beginning of the project:
Year of completion:

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