Tritech Disconnectors (India) Pvt. Ltd.
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Product portfolio / Upto 400kV class

Isolators / Disconnectors Upto 400kV Class

Isolators/Disconnectors, HDG Support Structures and Mechanisms for PGCIL, Various Utilities, Railways, EPC Contractors and Industrial Requirements.

Product families

Various Voltage Classes and Current Ratings

Isolators/Disconnectors can be configured around various voltage and current ratings, Break type, Earth Switch, Manual and Motorised Mechanisms and Support-Structure Requirements.

Upto 400kV HDB Turn & Twist Isolators/Disconnectors01

Upto 400kV class / HDB

Upto 400kV HDB Turn & Twist Isolators/Disconnectors

Horizontal double-break Isolator/Disconnector with smooth turn-and-twist operation for high-voltage substations upto 3150A ratings.

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11kV to 33kV HDB Banging-Type Isolators/Disconnectors02

11kV to 33kV class / HDB

11kV to 33kV HDB Banging-Type Isolators/Disconnectors

Horizontal double-break, Banging-type Isolator/Disconnector for distribution and utility installations upto 1250A ratings.

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Equipment Structures03

Substation Equipment Structures

Equipment Structures

CNC Fabricated equipment structures with facility of robotic welding for precision manufacturing.

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400kV Insulators04

400kV Insulators

400kV Insulators

Supply of normal/high creepage approved polymeric/porcelain insulators for various voltage ratings.

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Hot-Dip Galvanizing05

In-house service

Hot-Dip Galvanizing

In house 1000 Metric Ton high quality hot dip galvanizing plant, Having bath size L - 6.1m, H - 1.2m, W - 0.8m with in house shot blasting facilities.

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Horn Gap & Drop-Out Fuses06

Upto 36kV class

Horn Gap & Drop-Out Fuses

Single-phase horn-gap and drop-out fuse equipment for distribution protection applications.

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Motor Operating Mechanism Box07

Operating Box

Motor Operating Mechanism Box

Motorized operating enclosure with reduction gear, Overload protection and control options suitable for SCADA operations.

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Terminal Connectors08

Aluminium connectors

Terminal Connectors

Type-tested terminal connectors, Including configurations for Terminal pads and substation equipment.

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11kV to 36kV Air-Break Switch09

11kV to 36kV class

11kV to 36kV Air-Break Switch

Outdoor air-break switching equipment, Including 11kV and 22kV configurations upto 400A rating.

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Portfolio Range

Our Product Ratings

Our portfolio range for various voltage, Current, Isolator/Disconnector type, Short time withstand current, Operating mechanism and support structure.

Product types and configuration range for mains and earth switches
ParticularsFor MainsFor Earth
Rated Voltage

11, 22, 33, 66, 110, 132 and 220 kV

11, 22, 33, 66, 110, 132 and 220 kV

Highest System Voltage

12, 24, 36, 72.5, 123, 145, 245 and 400 kV

12, 24, 36, 72.5, 123, 145, 245 and 400 kV

Current Rating

400, 630, 800, 1250, 1600, 2000 and 2500 A

400, 630, 800, 1250, 1600, 2000 and 2500 A

Type
  • Banging type
  • Turn & twist type
  • Horizontal double break (HDB)
  • Vertical single break (VSB)
  • Horizontal single break (HSB)
  • Banging type
Short-Time Current (STC)
  • 11 kV — 25 kA for 3 seconds
  • 33 kV — 31.5 kA for 3 seconds
  • 66 kV — 40 kA for 3 seconds
  • 132 kV — 40 kA for 3 seconds
  • 220 kV — 40 kA for 3 seconds
  • 220 kV — 50 kA for 3 seconds
  • 11 kV — 25 kA for 3 seconds
  • 33 kV — 26.5 kA for 3 seconds
  • 66 kV — 40 kA for 3 seconds
  • 132 kV — 40 kA for 3 seconds
  • 220 kV — 40 kA for 3 seconds
  • 220 kV — 50 kA for 3 seconds
Operating Mechanism

Motorized operating, Manual reduction-gear operating or manual operating, As required.

Support Structure
  • Gantry structure
  • Pipe-type structure
  • Lattice or channel-type structure
Insulator Creepage

Normal creepage (25 mm/kV) or higher creepage (31 mm/kV), As required.

Final ratings and compliance are confirmed by Tritech engineering against the project specification.

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Operating mechanisms

Manual and Motorised

Operating systems are configured around safe access, Interlocking, Enclosure requirements and the required method of control.

Manual operating mechanism

Manual operation

  • Insulated operating handle
  • Safety locking provision
  • IP55 / IP67 enclosure options
Motorized operating mechanism interior

Motorized operation

  • Motor with worm reduction gear
  • Overload protection
  • Optional remote operation