How we engineered a highly cost-efficient concrete enclosure that houses a complex arrangement of both primary and secondary equipment, delivering a fast-track, economically optimised solution for large-scale grid connections.
How we engineered a highly cost-efficient concrete enclosure that houses a complex arrangement of both primary and secondary equipment, delivering a fast-track, economically optimised solution for large-scale grid connections.
Location:
Timeline:
Client:
Scope of work:
Structural redesign, multi-component engineering, and turnkey manufacturing of concrete distribution substations.
Technical Specification:
Advanced Automation in a Cost-Controlled Enclosure
As part of its extensive 2023-2027 network expansion, Elektrilevi faced an influx of medium-voltage commercial customers and renewable energy producers needing rapid grid connection.
Managing these complex connections required advanced functionality, including commercial metering, feeder terminals, and smart remote-control automation.
The engineering challenge lay in fitting all of these sophisticated primary and secondary automation systems into an enclosure without skyrocketing capital expenditure or deployment timelines. A standard vendor solution would have resulted in an over-engineered, prohibitively expensive substation footprint.
Redesigned Concrete Enclosure with Precision Component Selection
Harju Elekter developed a newly updated, highly cost-effective HEKA C concrete substation configuration. Our engineering teams systematically redesigned our traditional concrete enclosure and expertly sourced a precise mix of protection relays, RTU modules, and fault-pass indicators that matched Elektrilevi’s stringent technical parameters.
By modifying the physical concrete design and carefully balancing component selection, we successfully integrated extensive primary switchgear (up to 5+5 bays), commercial metering, and smart remote grid-adjustment technology into a single, economically streamlined enclosure.
Smart Grid-Ready Substations Delivered at Optimised Cost
Elektrilevi received an incredibly robust, “smart grid-ready” distribution substation family delivered in minimum development time. By finding the most cost-optimised balance between physical concrete space and advanced electrical components, Harju Elekter saved the client considerable project budget while providing them with full remote-management capabilities via integrated RTUs.
Furthermore, this project significantly expanded our internal engineering expertise in configuring, adjusting, and testing high-level secondary automation, reinforcing our position as a preferred technology partner for modern utility providers.
