CONNEX – The Universal Connection System for Cables, Transformers, and GIS

The fully encapsulated CONNEX connection system with solid insulation makes power transformers and GIS more flexible than ever before: in terms of design, set-up, and application. With CONNEX, systems become compact all-rounders, ideally equipped for new requirements in the future. How do you benefit? Systems remain flexible over the long term, securing your investment throughout the entire service life.

Flexible for network adjustments

The trend is clear: Substations are becoming more compact while network infrastructure is becoming more dynamic. Not a problem thanks to CONNEX! The connectors are easy to insert – even power transformers and GIS can be installed or replaced with ease. Featuring a space-saving design for indoor and outdoor use, CONNEX can even be used off-shore and is ready to tackle new challenges.

A CONNEX interface for every connection.

CONNEX forms a single unit with transformers and GIS. The socket is installed as a fixed system component and serves as a standardized interface for various components, such as bushings or surge arresters. This significantly reduces your workload as you no longer have to worry about dealing with the system’s sensitive inner workings.

CONNEX is the biggest product line on the market.

With CONNEX, PFISTERER covers all voltage ranges between 6 kV and 550 kV. The plug-in connection system includes a wide selection of cable accessories, surge arrestors, bushings, joints, and voltage testing systems, along with installation and test accessories. This makes it the most extensive product range on the market.

CONNEX is the only system certified for off-shore use.

CONNEX is a pioneering plug connector for transformers and GIS in open-air and building-based applications. Furthermore, it is the only connection system to have received certification for off-shore applications from the DNV GL classification company, making it ideally suited for use on open-sea platforms and wind farms.

Advantages:

75% less time needed for initial installation
Modest space requirements
Suitable for outdoor and indoor use
Speedy change of location as replacement transformer
Potential for flexible transformer conversion
Touch-proof maintenance
Good protection against electromagnetic fields
Certified for off-shore applications
Safety tested according to IEC standards

PFISTERER developed the first universal cable repair system suitable for all XLPE-insulated cables – regardless of type and cross-section – for Schleswig-Holstein Netz AG, the largest electricity network operator in the German state of Schleswig-Holstein and partner to some 900 municipalities.

This project is unique worldwide. DolWin gamma is one of the first and largest commercial offshore converter stations in the German North Sea. As part of the DolWin network connection project, it has been connected to another platform via a bridge system, using a new kind of flexible high-voltage cable with a conductor cross-section of 800 mm².

Just 36 hours from installation to switch-on – New York’s first mobile emergency transformer went online in record time. PFISTERER was involved from the outset in planning this new type of transformer, and supplied the dry pluggable CONNEX connection technology that forms a key element of the integrated solution.

The new power transformers from AVU Netz GmbH are universal in their application. This network operator in western Germany is already implementing three connection versions using identically constructed transformers and thus remaining flexible for future demands. This is made possible by the versatile CONNEX connection system.

Space-saving, innovative, underground. The Oerlikon substation uses intelligent, vertical connection technology by PFISTERER to free up building space.

When designing the Klus substation, personal safety was given number one priority because quick maintenance means maximum reliability, just as you would expect in Switzerland. CONNEX also reduces costs, just as you would expect from PFISTERER.

Kraftwerke Oberhasli AG (KWO), a Swiss energy supplier, runs some of the most powerful hydropower plants in Europe but some of the plants have started to show their age. For the upgrades, the operators relied on PFISTERER technology.

Q7 is the Netherlands’ first off-shore wind farm outside of the territorial zone (12 nautical miles). Here, CONNEX cable connections are not the only things that need to show off their sea legs. PFISTERER experts have to showcase their bravery, too.

The cable system in the dry dock, the test transformer far away on the back of the truck. HV tests for off-shore systems can be pretty tricky. A PFISTERER-developed adapter solves this problem.

14 staff, 13 weeks, 5,800 meters of cable: PFISTERER installed the first ever cable system certified for off-shore use at the Global Tech I off-shore wind farm.

The Park Substation built by Anaheim city council in California is the USA’s first distribution station to be built underground. Also in on the action: the CONNEX connection system by PFISTERER.

Quick and long-lasting renovations? All it takes is a few steps thanks to the IXOSIL joints by PFISTERER. No clamping rings, no pipes, no flanges. Simply remove, fit, and save time.

CONNEX – The Universal Connection System for Cables, Transformers, and GIS

Flexible for network adjustments

A CONNEX interface for every connection.

CONNEX is the biggest product line on the market.

CONNEX is the only system certified for off-shore use.

Advantages:

References

Universal fault reserve system for 110 kV XLPE cables – the Universal Repair Kit

DolWin 3 Project Successfully in Operation

New York’s First Mobile Emergency Transformer

AVU Relies on Universal Connections for Transformers

The Space-Saving Miracle of Oerlikon

Klus – A Substation That You Can Touch

Fully Equipped: CONNEX at Oberhasli Power Station

Ready for the Open Seas in Every Respect: CONNEX in the Q7 Wind Park

Well-Connected: HV Tests in the Dry Dock

Pioneering Work for Global Tech I

Green On The Top, High-Tech Underneath: A Park With Power

Speedy Renovations: Siemens Has The Knack

Further links

Downloads

News

Contact

Top-Topics

Case Studies