DI-2: Ring Main Unit – GIS
Modular concept combining all medium voltage functions.
Over time SGC – SwitchGear Company has developed the “DI-2”, a modular concept which combines all medium-voltage functions. It allows SGC – SwitchGear Company to provide “made-to-measure” solutions for all your medium-voltage needs.
The DI-2 cubicles and associated switchgear offer a wide range of applications and can be used worldwide in many industries. DI-2 cubicles can be used with distribution and dispersion switchgear, electrical substations and medium-voltage engines, wind generators, cogenera- tion, and much more.
The DI-2 system is a modular concept based on the “building blocks” principle, which means that cubicles are produced in series. As a result, the modular DI-2 concept meets the highest technical standards in a rational, economically sound way. The combination of cubicles is unlimited. Very complex diagrams of distribution and transformer switchgear can be compiled through this extensive spectrum of possibilities.
Technical Specifications
Rated Voltage
|
kV | 36 |
Impulse withstand voltage 1.2 / 50 μs
|
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– To earth and between phases
|
kV | 170 |
– Over the insulated distance
|
kV | 195 |
Power frequency withstand voltage
|
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– To earth and between phases
|
kV | 70 |
– Over the insulated distance kV 80
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Rated frequency
|
Hz | 48/62 |
Rated current
|
A | 400/630 |
Rated short-time current 3 s.
|
kA | 20 |
Rated peak value of the current
|
k | 50 |
Breaking capacity RV36 (Class E3)
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– Mainly active load current (I1 / Iloop)
|
A | 400/630 |
– Closed loop current (I2A / Iloop)
|
A | 630 |
– Cable charging current (I4A/ICC)
|
A | 25 |
(I4B)
|
A | 2 |
– Short circuit making current (Ina)
|
k | 50 |
– Earth fault current (I6a/Ief1) A 50
|
A | 50 |
– Cable and line charging current under earth faults (I6b / Ief2)
|
A | 16 |
Degree of protection
|
IP6X/IP4X
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Mechanical durability c/o
|
1000 (=M1)
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Standards
|
IEC 62271-100, IEC 62271-1, 62271-102, -103, -105, 62271-200 | |
Certificates
|
KEMA/IPH |