Tridelta Meidensha HV surge arresters

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Tridelta provides a diverse range of surge arresters for high-voltage applications up to 800 kV. Their offerings include the reliable SB types with porcelain housing, as well as the SBKC and SBKT models featuring silicone housing.

All Tridelta designs incorporate an excellent sealing system that prevents moisture ingress, ensuring decades of reliable and maintenance-free operation. The extensive range of Tridelta arresters provides optimal surge protection for various requirements and applications, including:

  • Exceptional mechanical performance for regions with high seismic activity, where arresters may also serve as structural supports

  • Excellent resistance to impurities, making them suitable for desert and coastal areas, as well as regions with high air pollution levels.

Tridelta Meidensha offers a comprehensive range of high-voltage surge arresters designed to protect electrical equipment from overvoltages caused by lightning strikes and switching operations. Their product lineup includes the following series:

SB Series:

  • Features porcelain housings.

  • Known for their durability and long service life.

  • Suitable for high-voltage applications up to 800 kV.

SBKC Series:

  • Employs a silicone housing with a cage design.

  • Provides excellent mechanical strength and flexibility.

  • Offers a lightweight and economical solution.

  • Suitable for applications up to 420 kV.

SBKT Series:

  • Features a silicone housing with a tube design.

  • Delivers high mechanical resistance and superior sealing.

  • Offers a lightweight and economical solution.

  • Applicable for high-voltage systems up to 800 kV.

Each series is engineered to meet specific operational and environmental requirements, ensuring optimal protection and reliability for various electrical infrastructures.

Cage design: Utilizing a cage of FRP rods surrounding the stack of MOV blocks, secured into the terminals through a patented wedge clamping system, guarantees enhanced mechanical strength to meet advanced requirements.

Tube design: Featuring an FRP tube with an enclosed gas volume, complete with a pressure relief device, ensures maximum mechanical strength—ideal for regions facing high seismic activity or heavy wind loads.

Filament cage design: A hybrid design blending the advantages of both cage and tube technologies. The filament cage arresters offer flexible adaptability for diverse applications, ensuring a perfect fit for custom requirements.

At the heart of Tridelta Meidensha surge arresters lie Metal Oxide Varistors (MOV) blocks, crucial components that define the electrical properties and protective functions of the devices. Drawing on over 50 years of industry experience Meidensha Group in Japan pioneered the introduction of MOV blocks to the market. Since then, Tridelta Meidensha has consistently upheld the highest standards by sourcing MOV blocks from esteemed manufacturers, including Meidensha and other well-known industry leaders. This commitment ensures that Tridelta Meidensha surge protection solutions embody cutting-edge technology and reliability, meeting the stringent demands of our valued customers.