Smart Compact Secondary Substations

Ensto’s smart compact secondary substations and switching stations offer the best technical solutions for modern power grids with enhanced intelligence, remote control and protection.
Smart compact secondary substation in medium voltage networks.

Secondary Substations for Harsh Climate

Iceland's largest DSO, Veitur Utilities commissioned our smart and compact secondary substation, built to withstand and ensure continuous power supply in Iceland's electricity distribution, where equipment must withstand ever-changing weather conditions, strong winds and possible earthquakes.
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Uninterrupted Power Supply

The availability requirements of the electricity distribution network are constantly increasing, and the maximum times of power outages are defined in the security of supply requirements. Power outages cause increasing costs for companies, for example in the form of customer compensation.

Therefore, increasing intelligence, remote operation, fault detection and protection of electricity networks is even more profitable. Smart compact secondary substations (CSS) play a key role in converting electricity from medium voltage to low voltage as well as improving the intelligence and reliability of the network and minimizing the effects of power outages.  

Highly Secure Smart CSS

Ensto’s smart compact secondary substation i1000 and switching station EA6 offer the best technical solutions for modern power grids with enhanced intelligence, remote control, fault detection and protection. The highly secure smart CSS with a universal product platform is delivered to the customer as a turnkey service, from design to initial on-site testing. Smart CSSs are easily adapted to customers' needs both in terms of space and technology and are ready also for distributed energy and industry needs. 

Safety Given Top Priority

The smart CCS is equipped with an arc pressure relief duct that safely channels expelled gases through a roof panel in a controlled manner. This regulated pressure release minimizes the damage to the substation and ensures that any arc fault does not pose a threat to the operator or the public in the event of a fault. The substation also features robust lockout and access control monitoring, along with other indicators available integrated into the SCADA system. Operator safety is further improved with automatic LED lighting inside the substations.

Designed for Demanding Climate Conditions 

Smart CSS has a mechanically extremely durable and strong appearance. Designed to stand wind loads up to 1640N/m2. CSS products have a dust ingress protected and thermal insulated IP55 rated section for automation, remote-control and auxiliary power systems. This ensures reliable operation of the equipment in challenging Nordic climatic conditions. 

Utilizes the Latest Technology in the Market

Smart CSS solutions are entirely vendor-neutral, enabling customers to select the latest state-of-the-art components that meet their needs from a variety of suppliers. Substations integrate seamlessly with different SCADA systems through standard protocols and communication methods. As a versatile operator with extensive expertise in the field, we are well-equipped to test new devices and technologies effortlessly.

Turnkey Delivery and Easy Commissioning

Smart CSS solutions can be designed fully according to the customer’s requirements. They can be equipped with advanced, intelligent security and protection systems that are rigorously tested during the factory testing phase.  Remote control and monitoring signals can also be verified directly from the factory, which ensures seamless integration into the customer's SCADA system. In addition, we offer consulting services (linkki) to determine optimal security settings.
 

As part of the smart CSS solution concept, we offer onsite primary-side fault simulation tests with testing trailer to ensure the correct operation of complex protection schemes. The trailer simulates real-life fault situations in a controlled and safe manner. 

Comprehensive Service and Technical Support

Ensto's extensive knowledge in the electricity distribution business and smart and compact secondary substations offers the customer an advantage in getting the best solutions in the field. We are also providing everything from spare parts to configuration changes and comprehensive technical support regarding smart secondary substations. 

Best Technical Solutions

Compact Secondary Substation i1000

The smart compact secondary substation, designed for transformers up to 1000KVA provides advanced technical solutions for modern electricity network with enhanced intelligence, remote control and protection. Built for durability, the substation can withstand wind loads of up to 1640N/m². Our manufacturing and testing process is ISO 9001, ISO 14001 and ISO 45001 certified.

Smart CSS solutions are available in three different enclosure configurations according to needs.

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Switching Station EA6

Smart switching station EA6 with RMU up to 6 modules provides advanced technical solutions for modern electricity network with enhanced intelligence, remote control and protection. Built for durability, the substation can withstand wind loads of up to 1640N/m². Our manufacturing and testing process is ISO 9001, ISO 14001 and ISO 45001 certified.

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Enabling Green Transition

Within the green transition the need for substations increases remarkably. Our substation solutions provide primary and secondary substations to connect electricity generated from wind and solar sites to the grid.

These substations are equipped with advanced control and protection systems, meeting today’s customer requirements for remote monitoring and communication. Smart compact secondary substations and switching stations offer modern, technologically advanced solutions for the renewable energy solutions environment. 

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CSS for Maritime Climate

Iceland’s largest DSO Veitur Utilities was convinced of the durability and climate requirements of Ensto Maviko's smart compact secondary substations (CSS).

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Other solutions

Primary Substation Projects

Ensto delivers its strong expertise in primary substation projects as turnkey solutions up to commissioning, or as smaller sub-assemblies. Substation extensions or refurbishments and maintenance work are also carried out according to customer needs. The solutions can be delivered to electricity distribution networks, wind power production and industrial use.

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Compensation of Earth Fault Current

Ensto has extensive know-how and experience in providing earth fault current compensation solutions for the underground cable distribution networks. The turnkey services include all from the needs specifications and devices to commissioning and maintenance services. The solutions are always carefully planned based on and configured to meet the customer’s needs.

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Compensation of Reactive Power

Ensto has extensive know-how and experience in providing compensation of reactive power solutions for the underground cable distribution networks. The turnkey services include all from the needs specifications and devices to commissioning and maintenance services. With precise planning and appropriately selected compensation reactors, reactive power levels can be effectively minimized.

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Testing Services

Ensto’s comprehensive testing services offer functional and reliable remote control and automation system testing for both primary substations and smart compact secondary substations. Automation increases the stability of the electricity distribution system in all conditions, promoting consistent and safe operation.

In addition, we have extensive experience in testing protection relays, and our expertise covers all the most common protection relays.

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