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PFISTERER receives patent for innovative connector technology for HVDC applications

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Patent granted for pluggable HVDC cable connector
New stress cone design reduces space charge build up
Designed for up to 525 kV and IEC 62895 tested

EQS-News: PFISTERER Holding SE / Key word(s): Patent
PFISTERER receives patent for innovative connector technology for HVDC applications

02.06.2026 / 10:00 CET/CEST
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June 02, 2026

PFISTERER receives patent for innovative connector technology for HVDC applications

Winterbach. PFISTERER has reached an important milestone in the development of modern high-voltage direct current technology (HVDC): The German Patent and Trade Mark Office (DPMA) has granted the patent for the new “HVDC pluggable connector”.

With this new development, PFISTERER is expanding its CONNECTOR portfolio with a solution for high-voltage direct current (HVDC) applications. Building on an extensive expertise with plug-in connection systems for AC applications, the company is setting new benchmarks for the power networks of the future.

The patented pluggable HVDC cable connector was developed for use in modern high-voltage direct current systems, including HVDC converter stations, outdoor cable terminations, and repair joints. At the core of the development is a new design of the field control element (“stress cone”), which counteracts the accumulation of space charges within the cable connector. The solution is complemented by newly developed insulating materials specifically tailored to the requirements of HVDC applications. The technology has been successfully tested in accordance with IEC 62895 and is designed for voltages of up to 525 kV as well as high power transmission capacities.

The pluggable design also offers advantages for the installation and maintenance of modern HVDC infrastructure. Installation times can be reduced, which is particularly important for offshore converter stations. At the same time, the system enables more compact installation setups, reducing the space required during installation — another key benefit for offshore applications where installation space is limited. In addition, the technology facilitates the use of environmentally friendly alternative gases in outdoor terminations. The pluggable connection technology can also provide advantages for repair solutions in terms of flexibility and installation effort.

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