Medium-Voltage Design
We at SmartERA provide comprehensive medium-voltage design and implementation services for industrial and commercial clients, from on-site surveys through commissioning and long-term support.
Reliable medium-voltage solutions – from design to maintenance
SmartERA offers the full spectrum of medium-voltage design services: on-site surveys and load calculations, technical design of switchgear and transformer substations, protection relay settings and coordination, precise cable sizing, reliable grounding system design, and operational interlocking planning. We undertake system integration, detailed testing and commissioning, and provide documented handover and long-term technical support to ensure you receive a safe and scalable energy infrastructure.
Medium-Voltage Design
Based on on-site capacity and demand assessments, we determine the required medium-voltage capacity, technical parameters for switchgear and transformer substations, and the requirements for protection relays and cable sizing, ensuring the possibility of future expansion.
Switchgear and transformer substations
We design and implement switchgear and transformer substations, taking into account protection relay coordination, spatial layout and cable sizing. Our goal is to achieve safe and efficient power supply with minimal operational disruptions.
Installation and commissioning
We undertake full installation of medium-voltage switchgear and transformer substations, configuration of protection relays, construction of grounding systems, and implementation of operational interlocking. During handover we perform detailed testing and documented commissioning so that you have full visibility of every process.
MEDIUM-VOLTAGE SYSTEMS SAFELY AND EFFICIENTLY
A modern medium-voltage infrastructure is not just assembling equipment: the combination of switchgear, transformer substations, protection relays, correct cable sizing and a reliable grounding system guarantees safe operation. In our design we take operational interlocking and future expandability into account, ensuring you receive a cost-effective and scalable solution over the long term.
Medium-voltage switchgear
In designing and executing medium-voltage switchgear, our aim is a safe, operator-friendly and maintainable system. We prepare the technical specifications, select manufacturers and document the operation of protection relays.
Transformer substation design
When designing transformer substations we consider power transfer requirements, thermal load, cooling and integration with switchgear. The design ensures reliable supply and correct coordination of protection relays.
Protection relays and coordination
In the field of protection relays and coordination we provide precise settings and sequential logic so systems respond appropriately to faults. We give special attention to earth-fault and overcurrent protection settings and relay coordination so outages are limited to the smallest possible area.
Cable sizing and grounding systems
Designing cable sizing and grounding systems is fundamental to safe medium-voltage operation. We determine cable cross-sections, distribution routes and the technical parameters of grounding according to relevant standards so you receive a protected and compliant system.
Operational interlocking and system integration
Operational interlocking and system integration ensure safe operation of equipment and unified functioning of protection logic. We integrate control systems, SCADA and metering, giving you real-time control and transparent operation while protection relays and interlocks work seamlessly together.
Electrical network and protection
A reliable electrical network starts with precise planning: we verify the connection capacity, cabling, distribution and switchgear, and the required protection devices. We provide our clients with detailed technical documentation and maintenance recommendations, including guidance on cable sizing and grounding systems.