Busbar System DURESCA®

Busbars are solid insulated, touch-safe connections between any electrical equipment.

• Used in medium and high voltage networks from 12 to 170 kV
• Currents up to 8000 A
• 100% factory tested for partial discharge free operation
• Custom engineered for easy and fast installation
• Maintenance free
• More than 60 years of field experience

Transformer Bushings DURESCA®

Reliable and safe bushings with state-of-the-art technology

• Voltages from 24kV to 550kV
• Swiss quality combined with global experience
• Isolation RIP & RIS (resin-impregnated paper/synthetic)
  • Not affected by humidity
  • Easier handling for long transportation and storage
  • Reduced power factor/tan delta and capacity
• Highest operational safety and longest lifetime guaranteed through dry high-grade condenser design
• Maintenance-free operation
• Safe service operation conditions with composite silicon insulation, non-inflammable

Current Transformers

Transform high current into standardised values for meters, measuring and protection devices.

• Used in high-voltage networks within the 24-550 kV range
• Precise electric field control and prevention of local partial discharges through fine graded bushing
• Higher safety through prevention of subsequent arcing
• High operating safety as there are no active parts in the isolator
• Minimum oil volume through optimised design
• Ambient temperature -40...+40 °C

Circuit Breakers

Interrupt short-circuit currents and enable changes in the network configuration.

• For high voltage air-insulated switchyards
• Innovative eco-compatible arc interruption method
• SF₆ and F-gas free insulation media
• A solution that delivers sustainability without compromising performance or safety by applying innovative concepts

Disconnectors

Reliable power transmission and safe disconnection to protect your employees.

• Available in voltage levels from 72.5 kV to 420 kV up to 5000 A
• Easy assembly and maintenance through joint development with our customers' service engineers
• Reliable design to efficient and durable devices
• Projects are carried out individually with a designated responsible person for your business
• Reliable service team with customised training offers take care after commissioning in the long term

Voltage Transformers

Transform high voltage into standardised values for meters, measuring and protection devices.

• Used in high-voltage networks within the 24-550 kV range
• Protection of the secondary winding from transient overvoltages in the high-voltage network through capacitively coupled shielding
• Protection against occurring ferroresonance through low operating inductance in the iron core
• High operating safety as there are no active parts in the insulator
• Minimum oil volume through optimised design
• Ambient temperature -40...+40 °C