High Voltage Disconnector

Let Us Show you what sets us apart

Product Overview

High Voltage Disconnector

Reliable Isolation Solutions for High-Voltage Power Systems

Our high-voltage disconnectors are designed to provide visible electrical isolation for substations, transmission networks, and power distribution systems. Available in different configurations to meet project-specific voltage levels, installation conditions, and operating requirements.

High Voltage DisconnectorOverview

A high-voltage disconnector is used to isolate electrical equipment or sections of a power system when maintenance or switching operations are required. It provides an isolation point and, depending on the design, a visible indication of the open position.

Our disconnectors are suitable for high-voltage substations and power transmission applications. Product configurations can be selected according to rated voltage, current, installation environment, operating mechanism, and project specifications.

Disconnectors are generally intended to operate under specified no-load or negligible-current conditions and should not be used to interrupt load current or fault current unless the device is specifically designed and rated for that duty.

Key Features

Reliable Electrical Isolation

Designed to establish an isolation point in high-voltage electrical systems under specified operating conditions.

Visible Open Position

Uses SF6 gas for insulation and arc interruption in accordance with the selected circuit breaker design.

Flexible Operating Configurations

Operating mechanisms, control arrangements, and auxiliary functions depend on the selected model.

Visible Open Position

Configurations can be selected to suit substation layouts, connection arrangements, and installation requirements.

High Voltage DisconnectorTechnical Specifications

The following specifications should be completed according to the selected model and approved product datasheet. Available ratings may vary by voltage class and design.

Parameter	Reference Value
High-voltage rated voltage	Confirm by model
Frequency	50 / 60 Hz, confirm by model
Rated Current	Confirm by model
Rated Short-Time Withstand Current	Confirm by model
Rated Peak Withstand Current	Confirm by model
Operating Mechanism	Manual / Motor-operated, confirm by model
Installation Type	Outdoor / Indoor, confirm by model
Applicable Standard	IEC 62271-102, confirm applicability

Product Structure & Accessories

The structure of a high-voltage disconnector depends on its rated voltage, installation arrangement, and operating mechanism. Depending on the selected model, the main components may include:

Conductive contacts and current-carrying parts
Insulating supports
Operating linkage and mechanism
Base frame and mounting structure
Auxiliary contacts and position indication
Earthing switch, where included in the configuration

Component availability and arrangement vary by model. Please refer to the corresponding product drawings and technical documentation for the exact configuration.

Working Principle of an High Voltage Disconnector

A high-voltage disconnector operates by moving its contacts between open and closed positions through a manual or powered operating mechanism.

In the closed position, the contacts establish the intended electrical connection. In the open position, the contacts create an isolation gap according to the equipment design.

Disconnectors are normally operated in accordance with the system switching sequence and applicable interlocking arrangements. They are not intended to interrupt load current or fault current unless specifically designed and rated for such operation.

The actual operating sequence should follow the approved operating instructions for the selected equipment and substation.

Why Choose Our High Voltage Disconnector

Flexible Product Solutions

Different equipment configurations, operating arrangements, and installation options can be provided according to application requirements.

Technical Documentation Support

Product specifications, drawings, and supporting documents can be provided according to the selected model and project requirements.

Application-Based Selection

Our team can review the intended application and technical requirements to help determine a suitable product configuration.

Project-Oriented Support

Our technical team can review project requirements and provide suitable equipment solutions for different power system applications.

F.A.Q.

Supporting Subheading

Q1. What is the main function of a high-voltage disconnector?

A high-voltage disconnector provides an isolation point in an electrical system so that equipment or circuits can be separated for maintenance and other approved switching operations.

Q2. Can a disconnector interrupt load current?

A standard disconnector is generally not designed to interrupt load current or fault current. Switching operations must follow the equipment rating, approved sequence, and applicable interlocking requirements.

Q3. What operating mechanisms are available?

Depending on the model, manual or motor-operated mechanisms may be available. Confirm the options for the selected product series.

Q4. How do I select the correct disconnector?

Consider rated voltage, rated current, short-time withstand current, peak withstand current, installation type, operating mechanism, environmental conditions, and applicable standards.

Q5. Can the disconnector include an earthing switch?

Some configurations can be equipped with an earthing switch. Availability and interlocking arrangements depend on the selected model.

Everything We Do Is At A High Standard

Would you like to start a project with us?

WHAT WE DO

Applications

Our high-voltage electrical equipment supports a wide range of power infrastructure projects, from substations and transmission networks to power generation and industrial electrical systems. Equipment selection and configuration depend on the specific application, system requirements, and technical ratings.

High-Voltage Substations

Designed for integration into high-voltage substation infrastructure, supporting power system operation and electrical equipment arrangements.

Power Transmission Networks

Suitable for high-voltage transmission infrastructure, supporting network operation and the integration of electrical equipment.

Power Generation Facilities

Applicable to power plant switchyards and grid connection infrastructure, subject to equipment specifications and project requirements.

Industrial Power Systems

Suitable for industrial substations and power infrastructure where high-voltage electrical equipment is required.