Gas insulated switchgear

High-quality GIS – gas insulated switchgear: DI-2

We engineer reliable switchgear built on safety and care for the environment

It’s our most sought-after product: the “DI-2”. It’s a metal-clad and first-rate GIS switchgear solution.  A modular concept which combines all medium voltage functions. It allows us to provide “made-to-measure” solutions for all your needs and demands for new installations.

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Modular design

3-position load break switch

Rated voltage 36kV

The DI-2 system is a modular concept based on the “building blocks” principle. This means that cubicles are produced in series. Consequently, in a rational, economically sustainable way, the modular DI-2 design meets the highest technical requirements. The combination in cubicles is infinite. Through this broad range of possibilities, very complex distribution and transformer switchgear diagrams can be compiled. Our DI-2 GIS solution can always be expanded, compartmentalized and can support up to 36 kv.

A wide range of applications are provided by the DI-2 cubicles and can be used in many industries worldwide. Distribution and dispersion switchgear, electrical substations and medium voltage engines, wind generators, cogeneration, and much more can be used with DI-2 cubicles. 

For all your needs and specifications, the DI-2-concept offers a solution: it can replace obsolete installations and improve existing installations, and it is also ideally suited for brand new constructions. Therefore, it is important to know that the semi-compact cubicles are particularly useful if the space available is an issue or if economic factors play an important role. Moreover, it is designed to extend the lifespan of your switchboard and ensure the operator’s safety.

Modular gas insulated switchgear: The DI-2 system

  • New installations
  • Remote control operation or manual/automatic
  • Ur= 36kV, Ln = 630 A
  • Modular system, expandable and unlimited combination
  • High operator safety 
  • Ideally suited for wind farms
  • Semi-compact cubicles: particularly beneficial if the available space should pose a problem or if economical factors play an important role
  • Can be equipped with a wide range of optional features

Provided with a powerful triple-phase load break switch RV-36, class E3 according to IEC 62271-103 and SF6-insulation. It has an integrated interlocked earthing switch with making capacity up to 50 kA. The modular design of DI-2 makes it possible to create rational, economical and custom-made combinations of medium voltage cubicles (with a rated voltage 36 kV). Moreover, this system is equipped with cable support, door interlock and sockets for capacitive voltage detector with parallel testing possibility (HR/LR). Lastly, it contains a low-voltage compartment. This system guarantees both the safety of the operator as well as the installation itself.

Internal Arc resistance

An internal arc can be formed by a short-circuit or another malfunction. In a classic MV cubicle, an internal arc could significantly damage the installation and severely injure the operator and electrocute him or her. SGC aims to protect its users and operators with built-in ARC-killers.

The DI-2 is designed to withstand internal arcs, shielding both the installation and the operator. The internal arc is confined to the compartment where it originated, via a strategic pressure release system, and does not spread to the operator or to other compartments.

The DF-2 cubicle anti-arc kit is explicitly intended to minimize the impacts of an internal arc. By default, with overpressure valves pointing downward, all provided cubicles are fitted on the rear side. In addition, all cubicles from SGC – SwitchGear Company are internal arc resistant.

The DF-2 cubicles were checked for 20 kA/1s at KEMA IAC (AFL) and 17,5 kV/24kV rated voltage according to IEC 62271-200, Appendix A, and met the 5 criteria.

Our DI-2 GIS product line

Get the product that fits you the best. SGC assists you in choosing the right solution. One of our most popular product lines is our DI-2 line. There’s a reason for that. Our DI-2 range is designed to last: all parts are durable and of the highest quality.Some of the reasons why SGC is a preferred partner include assured operator safety, co-engineering and long-lasting quality.  So, interested in a top of the range product? Go for the DI-2.

Want more information? Our team is here to help.

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Technical specifications

Rated voltagekV36
Impulse withstand voltage 1.2 / 50 μs:
- To earth and between phaseskV170
- Over the insulated distancekV195
Power frequency withstand voltage:
- To earth and between phaseskV70
- Over the insulated distancekV80
Rated frequencyHz48/62
Rated currentA400/630
Rated short-time current 3skA20
Rated peak value of the current50
Breaking capacity RV36 (class E3):
- Mainly active load current (l1 / Lloop)A400 / 630
- Closed loop current (l2A / Lloop)A630
- Cable charging current (l4A / lCC)A25
- Cable charging current (l4B)A2
- Short circuit making current (lna)50
- Earth fault current (l6a / lef1)A50
- Cable and line charging current under earth faults (I6b / Ief2)A16
Degree of protectionIP6X/IP4X
Mechanical durability c/o1000 (=M1)
Standards: IEC 62271-100, IEC 62271-1, 62271-102, -103, -105, 62271-200
Certificats: KEMA/IPH

(*) According to IEC 62271-103, class E1 / (**) Option Arc-killer

Download our complete DI-2 catalogue

Our DI-2 cubicles can be used in a wide range of configurations

DI-A

Incoming cubicle or cable field with load break switch and interlocked earthing switch


DI-P

Transformer protection cubicle with load break switch/fuse combination


DI-D

Protection cubicle with vacuum circuit breaker

Discover more and other configurations

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DF-2 projects

Cabling via 3D engineering

Turnkey cabling with 3D design software

Optimizing production processes with our cable machine, an automation solution for wire assembly.

Read More

Delivery of DF-2 station for Moundou in Chad.

For a substation of SNE in Chad, contractor Deba opted for SGC’s DF-2 program.

Read More

New exclusive distributor of Switchgear Company in Vietnam

We are proud to confirm that Asia Technology and Energy System Co. Ltd is the official dealer of…

Read More

Cabling via 3D engineering

Turnkey cabling with 3D design software

Optimizing production processes with our cable machine, an automation solution for wire assembly.

Read More

Delivery of DF-2 station for Moundou in Chad.

For a substation of SNE in Chad, contractor Deba opted for SGC’s DF-2 program.

Read More

New exclusive distributor of Switchgear Company in Vietnam

We are proud to confirm that Asia Technology and Energy System Co. Ltd is the official dealer of…

Read More

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Other SGC solutions

AIS

Air insulated switchgear

  • Always extendible
  • Minimal amount of SF6 (LBS)
  • Switchgear is compartmentalized
  • Withdrawable circuit breaker
  • 12 kV – 17,5 kV –  24 kV

GIS

Gas insulated switchgear

  • Ring main unit
  • Gas insulated
  • Compact monobloc
  • Lateral extension is optional
  • 12 kV – 17,5 kV – 24 kV – 36 kV 

HYBRID

Hybrid switchgear

  • Always extendible
  • Air insulation + minimal amount of SF6
  • Switchgear is compartmentalized
  • Withdrawable circuit breaker
  • 12 kV – 17,5 kV – 24 kV 

We excell in co-engineering 
made to measure solutions

Innovation and environmental care are the driving forces behind our products and company. A lot of our products are developed from co-engineering with clients, supplying solutions that fit their needs and specifications.

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