We design and manufacture high-voltage disconnectors and earthing switches of type CB-N2, engineered for rated voltages up to 420 kV and nominal currents of up to 4000 A.
These disconnectors are offered in both single-pole and three-pole configurations, featuring central breaking functionality and powered by reliable motorized or manual drives.
Our modular disconnectors are highly adaptable and can be supplied with or without earthing blades. For configurations with earthing blades, the blade placement is fully customizable to meet specific customer requirements, with options for single-sided or dual-sided mounting.
We provide two common three-pole configurations specifically designed for typical substation layouts. The parallel configuration features poles placed side by side, while the in-line configuration arranges poles in a single row.
The full modularity of our disconnectors is particularly evident in the flexibility of the current path drive and earthing blade drive placement. According to customer specifications, drives can be positioned beneath any pole or on either side of the disconnector.
Additionally, customers have complete freedom to define the drive position in relation to the height of the disconnector, with adjustable linkages and shafts tailored to their specific requirements.
For applications requiring only an earthing switch, we manufacture these as standalone units.
Key features:
- Rated voltages: 72.5 kV, 123 kV, 145 kV, 170 kV, 245 kV, 420 kV
- Rated current up to 4000 A
- Short-time withstand current up to 50 kA for 3 seconds
- Manufactured and tested in accordance with IEC 62271-102
- Standard dimensions
- Suitable for installation in conventional substations
- Simple and rapid on-site assembly
- High resilience to environmental influences
- Advanced safety features for operational personnel
- Low total cost of ownership over the life cycle
- Modular design
- Available in single-pole or three-pole configurations
- Enhanced mechanical durability – Class M2
- Motorized or manual drive options
The modular design of our disconnectors provides the flexibility needed to deliver solutions customized to meet specific customer requirements. Key adjustable features include:
- Position and design of high-voltage terminals
- Placement of earthing blades
- Placement of drives
- Visual pole marking (colour coding, alphanumeric labelling)
- Creepage distance of support insulators
- Control and motor voltage specifications
