Gas insulated switchgear
High-quality GIS – gas insulated switchgear: DR-6/DT-6(+)
We manufacture durable switchgear based on safety and longevity
Looking for the distribution switchgear that meets all your requirements? “DR-6/DT-6” is what you’re looking for. This product is a metal-clad and high-quality GIS switchgear solution.
Compact and extensible
3-position load break switch
Arc-killer option
Over time SGC has developed the “DR-6/DT-6” concept, which combines all medium voltage functions. It allows us to provide custom-built solutions for all your medium voltage needs.
The DR-6/DT-6 RMU and associated switchgear offer a wide range of applications and can be used worldwide in many industries. It can be used as distribution switchgear with electrical substations, wind generators, cogeneration, and much more. Moreover, the DR-6/DT-6 RMU provides a solution for all your needs and requirements: it can replace obsolete installations and expand existing installations, and it is also perfectly suited for brand-new constructions.
Modular gas insulated switchgear: The DR-6/DT-6 system
- Gas-insulated switchgear
- Safety, reliability, very compact and insensible to the environment in the field of electricity from 6 to 24 kV
- Compact and Extensible
- Clear synoptic
- SF6 insulated ring main unit
- DR6+: option with built-in ARC-KILLER SV-50
- Three position load break switch
- Combination of load break switch and circuit breaker
- Optional: Easy to reach injection points (at the top)
- Ur = 12-24 kV; Lr = 630 A
- LBS-ESW RV50
- Remote control operation or manual/automatic
Power stations generate electrical power, with voltages up to 380.000 V, which is transported to transformer stations and dispersion stations. These substations distribute medium voltage (+/- 10.000 V to +/- 24.000 V). Here too, a number of SGC’s RMU’s are used. A medium-voltage grid starts from every substation and supplies a large area with medium-voltage.
Wherever medium-voltage enters residential areas, industrial production companies, market gardening, hotels, sport venues, and more, there is a medium-voltage switchgear fulfilling four essential functions: power supply, security, measurement and transformation.
Internal Arc resistance
DR-6 RMU were tested at IPH IAC (AFL) for 20 kA/1s. at a rated voltage of 17.5 kV/24 kV according to IEC 62271-200, appendix A and met the 5 criteria. Consequently, all SGC nv SwitchGear Company RMU’s are internal arc resistant.
How can you protect yourself from electric arcs? Read more here.
DR-6+/DT-6+ option with built-in Arc-killer SV-50
The DR-6+/DT-6+ includes the arc-killer SV-50, a system for detecting and extinguishing an internal arc. The arc-killer extinguishes the arc by directing it to a metal earthed short circuit. The arc is extinguished in less than 50 ms. As a result, the expansion of hot gasses in a room can be reduced to zero. DR-6+ type RMU’s offer protection against an internal arc classification IAC category B, FLR 20 kA 1 s. (F=frontal, L=lateral, R=rear). The patented SV-50 Arc-Killer takes safety to a new level. The operator and the environment are shielded from harm, whether the operator stand in front of the switchboard, next to it or behind it. What’s more, the arc-killer’s improved security features place less strict demands on the installation room. As such, the Arc-Killer couples security and operational safety, with flexible room demands.
Our DR-6/DT-6 product line
Discover the product that’s right for you. SGC helps you choose the best solution. Our DR-6/DT-6 range is a very in-demand product range, and that has its reason. The DR-6/DT-6 range offers a compact, safe, reliable and economical design, free of any possible environmental aggression.
It’s built to last: all components are resilient and of superior quality. Also, all models can be equipped with a wide range of optional features.
Guaranteed operator safety, co-engineering and long-lasting features and quality are some of the reasons why SGC is a preferred partner.
Want the first-rate product with built-in ARC-killer? Then go for the DR-6+/DT-6+ with built-in ARC-killer SV-50.
Want more information? Our team is here to help.
Different modules
SGC offers a wide range of modules, one for every need. All modules are available in a compact version (DR-6C /DT-6C) or an extensible version (DR-6E /DT-6E) and with the optional arc-killer SV-50 (DR-6C/E+/ DT-6C/E+).
Each module comes with a pack of options, but also with a standard equipment, namely:
- Bushing interface type C, according to DIN EN 50181
- Cable clamps for monopolar cable with section up to 240 mm2
- Door interlock
- Integrated voltage indicators of the type Mevoco HR-3
- LV compartment
- MV cable access door
- Floor panels
- Operating handle
As mentioned earlier, each module can be adapted to our clients’ needs by making use of some options. Those options depend on the type of circuit breaker (fe. vacuum circuit breaker) and the type of function (K function, T function or D function).
Technical specifications
| Rated voltage | kV | 12 | 17.5 | 24 |
| General specifications | ||||
| Impulse withstand voltage 1,2 / 50 µsec. | ||||
| To earth and between phases | kV | 75 | ||
| Over the insulation distance | kV | 85 | ||
| Power frequency voltage test 1min. | ||||
| To earth and between phases | kV | 28 | ||
| Over the insulation distance | kV | 32 | ||
| Rated frequency | Hz | 50/60 | 50/60 | 50/60 |
| Rated short time current 3 s. | kA | 21 | 21 | 21 |
| Rated peak value of the current | k | 52.5 | 52.5 | 52.5 |
| Internal arc 1 s. IEC 62271-200 (5 criteria) | kA | 20 | 20 | 20 |
| Degree of protection | ||||
| HV-compartment | IP6X | IP6X | IP6X | |
| LV- and cable compartment | IP4X | IP4X | IP4X | |
| Rated gas pressure at 20°C | Bar | 0.5 bar overpressure | 0.5 bar overpressure | 0.5 bar overpressure |
| Line Feeder | ||||
| Short-circuit making current (Ima) | kA | 20 | 20 | 20 |
| Breaking capacity (IEC 62271-103) | Class E3 | Class E3 | Class E3 | |
| Rated current (Iload) | A | 630 | 630 | 630 |
| Closed loop current (Iloop) | A | 630 | 630 | 630 |
| Cable charging current (Icc) | A | 25 | 25 | 25 |
| Earth fault current (Ief1) | A | 180 | 180 | 180 |
| Number of makings | 5 | 5 | 5 | |
| Transformer feeder | ||||
| Rated current | A | 63 | 63 | 63 |
| Fuse switch | ||||
| Short circuit breaking capacity (limited by the fuse) | kA | 25 | 25 | 25 |
| Making capacity | k | 63 | 63 | 63 |
| Circuit breaker | ||||
| Short circuit breaking capacity 1s. | kA | 25 | 20 | 16 |
| Making capacity | k | 63 | 50 | 40 |
(*) According to IEC 62271-103, class E1 / (**) Option Arc-killer
Digital Protection Relay RP800
The protection cubicles of our DF-2 AIS range can be equipped with an integrated digital protection relay RP 800.
To find more info about which cubicles download our DF-2 brochure with all technical specifications of our cubicles.
The protection relay is made by our sister company Mevoco. Mevoco produces all the components used for our switchgear cubicles.
Working together with this partner within the same holding helps us to assure quality of our end product.
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DF-2 projects
FAT tests with our customer
A beautiful sunny day to conduct FAT tests with our customer Sibelga.
Summer break 2024
The SGC team will be on vacation from July 12th to 29th, recharging to continue delivering…
SGC – SwitchGear Company last day at SEPEM Industries
SGC - SwitchGear Company welcomes you to its booth at SEPEM Colmar 2024!
FAT tests with our customer
A beautiful sunny day to conduct FAT tests with our customer Sibelga.
Summer break 2024
The SGC team will be on vacation from July 12th to 29th, recharging to continue delivering…
SGC – SwitchGear Company last day at SEPEM Industries
SGC - SwitchGear Company welcomes you to its booth at SEPEM Colmar 2024!
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