High Voltage Overview

TRIDELTA offers a broad portfolio on surge arresters for the application on high voltage up to 800 kV

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Silicone – Solid Core Design

Our arresters with silicone housing in Solid Core Design of the SBK series are available for up to 170 kV. As for all our arresters with silicone housing we use high quality LSR Silicone, which keeps its hydrophobic and UV-resistant/non ageing properties over the complete service life and ensures excellent artificial pollution performance.

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Silicone – Tube Design

Similar to porcelain housed arresters they use a hollow insulator as housing. This so called composite insulator is made of a fibreglass reinforced plastic tube (FRP), with silicone rubber sheds directly moulded onto it. Composite insulators do have a very high mechanical stability.

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Medium Voltage Indoor Applications

Our medium voltage arresters are used for protection of medium voltage networks and devices against overvoltage caused by lightning and switching surges. Specially developed indoor medium voltage arresters are particularly suitable for the protection of transformers, switchgear and cable terminations in closed spaces.

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Transmission Line Arresters

Line arresters are an effective and economical option to protect existing as well as new transmission lines against lightning overvoltages in order to increase grid reliability and availability of transmission lines. Line arresters are suitable especially for line sections with low earthing impedance of the line towers, areas with high lightning activity, transmission lines without shield wire protection and for transmission lines with very high demand to their availability.

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