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What We Do

Center Break

A Center Break Disconnector is a high-voltage electrical switching device that uses a self-wiping contact system with very low operating torque. It’s designed for power systems up to 420 kV, featuring simultaneous three-pole operation through a single mechanism, and has been rigorously tested for various conditions including ice breaking and seismic events, making it highly reliable for power distribution networks.

Features

  • Very low Operating Torque
  • Self-wiping contacts
  • Simultaneous operation of 3 poles by single operating mechanism up to 420 kV
  • Individual pole operation for 420 kV (if required)
  • Fully type tested as per IS 9921 and IEC-62271-102 Structure to suit requirements
  • Special tests successfully done for Ice breaking, Low ambient applications & Seismic

Components

  • Hamper Assembly
  • Support Insulator
  • Disconnector Base
  • Inter Stack Coupling Pipes
  • Inter phase Coupling Pipes
  • Support Structure
  • Operating Mechanism
  • Interlocks

36kV to 550kV

Rated Voltage

400A to 4000A

Rated Continuous Current

25kA to 63kA

Rated Short Time Withstand Current

Double Break

A Double Break Disconnector is a high-voltage switching device featuring turn-and-twist contacts with both vertical and horizontal terminal configurations. It’s characterized by its enclosed actuator assembly and flexible operation modes – allowing both simultaneous three-pole operation and individual pole control at 420 kV – and has been comprehensively tested for extreme conditions including ice breaking and seismic events.

Features

  • Turn and Twist Contacts
  • Vertical and Horizontal terminal take off.
  • Totally enclosed actuator assembly
  • Simultaneous operation of 3 poles by single operating mechanism up to 420 kV
  • Individual pole operation for 420 kV (if required)
  • Fully type tested as per IS 9921 and IEC-62271-102 Structure to suit requirements
  • Special tests successfully done for Ice breaking, Low ambient applications & Seismic

Components

  • Rotating Hamper Assembly
  • Inter phase Coupling Pipes
  • Fixed Contact Assemblies
  • Support Structure
  • Support Insulators
  • Operating Mechanism
  • Disconnector Base
  • Interlocks

36kV to 550kV

Rated Voltage

400A to 4000A

Rated Continuous Current

25kA to 63kA

Rated Short Time Withstand Current

Pantograph

A Pantograph Disconnector is a space-efficient high-voltage switching device characterized by its low civil engineering profile and unique trapeze contact system with 4-point fixed contacts. It features a scissor-style assembly with multi-finger hinge contacts for current transfer and offers flexibility in busbar layouts while meeting international standards for electrical safety and performance.

Features

  • Very low civil engineering profile
  • Trapeze contact fixing to suit upper bus arrangement
  • 4 Point fixed contacts.
  • Available for flexible / right busbar layouts
  • Current transfer through multi-finger hinge contacts
  • Meets IS-9921 and IEC-62271-102 standards
  • Individual pole operation
  • Structure to suit requirements

Components

  • Trapeze Contact
  • Scissor Assembly
  • Main Frame Assembly
  • Support Insulators
  • Operating Rod Insulator
  • Support Structure
  • Operating Mechanism
  • Interlocks

36kV to 550kV

Rated Voltage

Up to 4000A

Rated Continuous Current

Up to 63kA

Rated Short Time Withstand Current

Knee Type

Knee-type disconnectors are essential high-voltage electrical components used in power systems to isolate circuit sections during maintenance or fault conditions, featuring a compact, knee-like mechanical structure that allows installation in limited spaces while handling voltages up to 765 kV. Available in manual and motorised versions, they provide reliable electrical isolation with integrated earthing switch options, simple maintenance requirements, and corrosion-resistant construction for long-term durability in harsh environments, making them trusted safety and efficiency solutions for power utilities worldwide in accordance with international standards.

Features

  • Simple Mechanical Structure
  • High Breaking Capacity
  • Earthing Capability
  • Versatility in Application
  • Compact and Space-Efficient Design
  • Safety and Reliability

Components

  • Main Base Assembly
  • Mechanical Interlock
  • Rack & Pinion Assembly
  • Moving (Knee type) blade assembly
  • Fixed contact assembly
  • Supporting Insulator
  • Operating rod Insulator
  • Earth switch Assembly

765kV

Rated Voltage

3150A

Rated Continuous Current

50kA

Rated Short Time Withstand Current

Vertical Break

Vertical Break disconnectors are critical high-voltage power system components that safely isolate electrical circuits using a space-efficient vertical breaking mechanism ideal for constrained substation environments. These disconnectors perform reliable high-load switching operations while maintaining excellent electrical isolation, operating smoothly under mechanical and electrical stress in challenging environmental conditions. Built with durable, corrosion-resistant materials for various climates, their straightforward design ensures easy maintenance and extended service life.

Features

  • Vertical Breaking Mechanism
  • High Voltage and Current Handling
  • Reliable Electrical Isolation
  • Compact Design
  • Minimal Maintenance

Components

  • Support Structure
  • Base Assembly
  • Moving Blade Assembly
  • Fixed Contact Assembly
  • Support and Operating Rod Insulator
  • Operating Mechanism
  • Earth Moving Blade and Fixed Contact Assembly

36kV to 550kV

Rated Voltage

Up to 4000A

Rated Continuous Current

Up to 40kA

Rated Short Time Withstand Current

R3

R3 (Repair, Refurbishment and Replacement) services for disconnectors encompass a comprehensive range of maintenance solutions focused on high-voltage disconnector performance optimisation and lifespan extension. These critical electrical isolation components receive expert attention through routine maintenance to ensure smooth operation, repair services to address mechanical or electrical failures, refurbishment of older units to restore original functionality, and thorough inspection and testing to verify compliance with safety and performance standards, ultimately preventing system outages and faults in high-voltage electrical systems.

Benefits

  • Extended Equipment Lifespan/li>
  • Improved Reliability and Performance
  • Cost Savings
  • Minimised Downtime
  • Customised Solutions
  • Sustainability

Spare Part Services

Spare parts services in the disconnector business provide essential replacement components—including mechanical parts, electrical contacts, insulators, operating mechanisms, and arc suppression systems—manufactured to original equipment standards to ensure compatibility and safety. These services maintain disconnector integrity through timely replacement parts that minimize downtime and extend equipment lifespan, while enabling upgrades to improve performance or meet new regulations. By offering original spare parts, customised repairs, and fast-track delivery of critical components, these services ensure power systems remain operational with minimal disruption, helping disconnectors meet ongoing safety and performance standards that contribute to the overall efficiency and reliability of the electrical grid.

Benefits

  • Minimised System Downtime
  • Extended Equipment Lifespan
  • Improved Operational Reliability and Safety
  • Compliance with Industry Standards
  • Cost Savings through Preventive Maintenance
  • Enhanced Technical Expertise for Personnel

Product Training

Product training in the disconnector business is crucial for ensuring that personnel—whether technicians, engineers, or maintenance staff—understand how to properly install, operate, maintain, and troubleshoot disconnector equipment. These trainings are typically offered by manufacturers or service providers and aim to ensure that users are well-versed in the functionality, safety protocols, and best practices related to disconnectors.

Benefits

  • Enhanced Workplace Safety
  • Increased Operational Efficiency
  • Reduced Equipment Downtime
  • Extended Disconnector Lifespan
  • Improved Troubleshooting Capabilities
  • Optimised Maintenance Scheduling

Supervision

Supervision of disconnector installation ensures high-voltage disconnectors are correctly and safely installed in power systems, maintaining compliance with safety standards and operational requirements. This process encompasses thorough pre-installation planning, enforcement of safety protocols, proper alignment and positioning of equipment, oversight of connections and wiring, comprehensive inspection and testing, and complete documentation of the installation process. Effective supervision is essential for the safe and reliable operation of power system equipment, minimising failure risks and maximising operational efficiency over time.

Benefits

  • Enhanced Workplace Safety and Accident Prevention
  • Ensured Compliance with Electrical Standards and Specifications
  • Improved System Reliability and Performance
  • Extended Equipment Lifespan
  • Reduced Maintenance Costs and Downtime
  • Comprehensive Documentation for Future Reference