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HIGH VOLTAGE DISCONNECTORS 40.5 kV to 1100 kV

/ High Voltage Disconnectors

Visible Isolation. Reliable Operation.

High-voltage disconnectors are designed to provide reliable electrical isolation in high-voltage substations and switching installations.

Their primary function is to create a clear isolating distance within the electrical circuit, providing the required separation for equipment isolation, maintenance and network configuration.

The available portfolio covers a broad range of voltage and current requirements, from conventional high-voltage substations to extra-high and ultra-high-voltage applications.

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/ Engineered for High-Voltage Networks

High-voltage disconnectors combine electrical insulation, mechanical operation and current-carrying capability in equipment designed for outdoor high-voltage installations.

The portfolio represented in the technical catalogue includes multiple mechanical arrangements suitable for different substation layouts and voltage classes. Designs include horizontal-opening, centre-break, V-type, vertical telescopic and horizontal-rotating configurations.

Electrical Isolation

Provides the physical isolating distance required within high-voltage electrical installations.

Current-Carrying Capability

Designed for continuous current requirements ranging from conventional substation applications to high-current transmission systems.

Mechanical Operation

Different operating and mechanical arrangements allow the equipment to be integrated into a wide variety of substation layouts.

Grounding Options

Configurations with grounding switches are available for applications requiring integrated isolation and grounding functions.

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/ Flexible Configurations

Designed Around the Substation

Different substation layouts require different disconnector configurations.

The catalogue includes several construction concepts covering applications from traditional high-voltage installations to ultra-high-voltage systems.

Horizontal Opening

A practical configuration for conventional outdoor switchyards where sufficient horizontal operating space is available.

Centre-Break

The moving contacts separate around the centre of the current path to establish the isolating distance.

Vertical Telescopic

A vertically operating arrangement represented in the catalogue for high and extra-high-voltage applications.

Horizontal Rotation

Multi-column horizontally rotating arrangements are represented for extra-high and ultra-high-voltage applications.

/ High-Voltage Capability

From Conventional HV to Ultra-High Voltage

The product portfolio covers a broad range of electrical requirements for transmission and substation applications.

Up to 1100+ kV

Voltage Class

Up to 7,500 A

Rated Current

Up to 63 kA

Short-Time Withstand Current

Up to 170 kA

Peak Withstand Current

/ Designed for Outdoor Service

Built for Substation Environments

Outdoor high-voltage equipment must continuously operate while exposed to environmental and mechanical conditions.

The catalogue represents configurations designed for outdoor installation, including corrosion-resistant structural solutions, pollution-oriented configurations and equipment designed for demanding climatic conditions.

Manual and electromechanical operating arrangements are represented, allowing the operating system to be coordinated with the required substation configuration.

/ IEC Standard

International Requirements for High-Voltage Disconnectors

For the website, I recommend presenting the standards very cleanly:

IEC 62271 Series

High-Voltage Switchgear and Controlgear

The IEC 62271 family provides the international standards framework for high-voltage switchgear and controlgear.

IEC 62271-102

Alternating Current Disconnectors and Earthing Switches

This is the key product standard to reference for high-voltage AC disconnectors and earthing switches.