Gas-insulated medium-voltage switchgear 8DJH - The one that fits all

Rated voltage up to

12 kV
  • Rated short-time withstand current up to 25 kA

  • Rated normal current up to 630 A

  • Single-busbar

Cired 2019

June 3-6, 2019 at the IFEMA Convention Center in Madrid, Spain (hall 9, booth #E 08)

 

Decarbonization, decentralization and digitalization are the three key drivers of change in the world. A growing demand of decarbonization leads to the increasing use of renewable energy sources and distributed grids that must be managed by digital solutions.

 

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Product information

Gas-insulated medium-voltage switchgear for secondary distribution

8DJH switchgear is a factory-assembled, type-tested, 3-pole metal-enclosed single-busbar switchgear for indoor installation. 8DJH switchgear is used in public and industrial energy systems of the secondary distribution level.

8DJH

- Up to 17.5 kV, 25 kA, 630 A busbar, 630 A feeder
- Up to 24 kV, 20 kA, 630 A busbar, 630 A feeder
- Metal-enclosed
- Gas-insulated
- Hermetically enclosed
- Factory-assembled, routine-tested according IEC 62271-200
- Type-tested according IEC 62271-200

Customer's Benefit:
- Security of Operation, Reliability
- Maintenance-free Design
- Personal Safety
- Environmental Independence
- Compactness   
- Economy, Ecology    

Rated voltage

 

kV

 

7.2

 

12

 

15

 

17.5

 

24

 

Rated short-duration power-frequency withstand voltage
kV
20
28
36
38
50
Rated lightning impulse withstand voltage
kV
60
75
95
95
125
Rated frequency 
Hz
50/60
50/60
50/60
50/60
50/60
Rated normal current of busbar
A
630
630
630
630
630
Rated normal current of feeder
A
630
630
630
630
630
Rated short-time withstand current, 1 s
kA
25
25
25
25
25
Rated short-time withstand current, 3 s
kA
20
20
20
20
20
Rated peak withstand current
kA
63/65
63/65
63/65
63/65
50/52
Rated short-circuit making current
kA
63/65
63/65
63/65
63/65
50/52
Dimension
- Width
- Depth
- Height 

mm
mm
mm

310/430/500
775
1200/1400/1700

310/430/500
775
1200/1400/1700

310/430/500
775
1200/1400/1700

310/430/500
775
1200/1400/1700

310/430/500
775
1200/1400/1700

Design and Construction

 

 

 

Loss of service continuity category for panels or panel blocks:

- Panels with disconnector (R, T, L)
- Panels without disconnector (K, M)


LSC 2
LSC 1
Partition Class:
PM (Partition Metallic)
Accessibility of Compartments (enclosure):
- Busbar compartment:
- Switching-device compartment:
- Low-voltage compartment (option):
- Cable compartment for panels or panel blocks
   - with HV HRC fuses (T)
   - without HV HRC fuses (R, L, ...)
   - only cable feeder (K)
   - Metering panels (air-insulated) (M) 

Non-accessible
Non-accessible
Tool-based
  
Interlock-controlled
Interlock-controlled
Tool-based
Tool-based                                             
                          

Internal arc classification (option)

 

 

 

Designation of the internal arc classification, IAC
IAC class for
- Wall-standing arrangement
- Free-standing arrangement 
Rated voltage 7.2 kV to 24 kV
 
IAC A FL
IAC A FLR 

Type of accessibility A



- F
- L
- R 

Switchgear in closed electrical service location, access "for authorized personnel only" (according to IEC 62271-200)

Front
Lateral
Rear (for free-standing arrangement)

Arc test current 
up to 21 kA 
Test duration
1 s
Future Distribution

Future Distribution Substation

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Medium- and low-voltage power grids need to handle changes due to the increasing integration of distributed infeed of renewable energy and growing electromobility in private transportation. While more and more of the necessary connection capacity can be provided through grid expansion, the effects of changing energy flow direction, load fluctuations, and voltage range compliance can only be managed with intelligent solutions.

The Future Distribution Substation from Siemens is the optimum solution concept:

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- IoT connectivity
- Application of standardized IEC communication standards
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Customer benefits:
- Future-proof functionality, consistently optimized in terms of
   environmental friendliness and space saving
- High efficiency and low operating costs
- Modularity and flexibility of components
- Efficient grid and asset management thanks to IoT technology
- Monitoring and protection of power quality

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