Gas-insulated switchgear for secondary distribution systems

Cleverly switched – Gas-insulated switchgear: Compact, maintenance-free and climate-independent

General Information

Description

Switchgear for the secondary distribution level

For the distribution of electrical energy, Siemens offers various gas-insulated switchgear types. In compact substations or small distribution substations, such switchgear contributes to guaranteeing uninterrupted power supply through to households and small industries. In all these applications, gas-insulated switchgear technology from Siemens provides exceptional advantages in respect of climatic independence, personal safety and maintenance-free design. For the power supply companies, this offers the high benefit of maximum supply reliability in their networks and thus, satisfied customers.

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Product Information

Gas-insulated switchgear 8DJH

Maintenance-free for lifetime

Overview
Technical Data
Front and side view
Approval
References
Movie
Intelligent transformer substations

8DJH

Up to 24 kV
Up to 25 kA
Up to 630 A
Single busbar
Type-tested
Metal-enclosed
Climate-independent
Maintenance-free
Individual panels and block versions
No gas work at site
Fast and easy to install

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	≤ 20
Rated short-time withstand current, 3 s	kA	≤ 20	≤ 20	≤ 20	≤ 20	≤ 20
Rated peak withstand current	kA	≤ 63	≤ 63	≤ 63	≤ 63	≤ 50
Rated short-circuit making current	kA	≤ 63	≤ 63	≤ 63	≤ 63	≤ 50

Dimensions
Dimensions of panel types and panel blocks - see catalogue right hand side.

Design and construction
Partition Class:	PM (partition of metal)
Loss of service continuity category for panels or panel blocks: with HV HRC fuses (T, H) without HV HRC fuses (R, L, ...)	LSC 2A LSC 2B
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

8DJH Circuit-breaker panel Type L

gas-insulated switchgear 8DJH - front and side view

Please see further details in catalogue (Catalogue found her under Download)

Selective Approval

Gost, Russland
Approval 03/2010

electrica, Bukarest
Approval 02/2010

JEN Instytut Energetyki, Warschau
Approval 09/2009

Vattenfall, Berlin und Hamburg
Approval 09/2009

envia, Halle
Approval 02/2011

Selective References

Customer

CEZ Distribuce, a.s.

Siemens Ltd.

Geise Elektrotechnik GmbH

EWE Netz GmbH

Beton- und Energietechnik Heinrich Gräper GmbH & Co. KG

E.ON edis AG

E.ON Hanse AG

ESB Dublin Supply Stores

JP Elektroprivreda BiH

Stadtwerke Düsseldorf AG

ENERCON GmbH

Elektroprivreda Crne Gore a.d. Niks

Dipl.-Ing. H. Vrielmann GmbH

Wilk Elektronik SA

KISH Water and Power Authority

Elektrotechnik Eimers GmbH

Centralschweizerische Kraftwerke AG

ENSO Energie Sachsen Ost AG

SSE Stredoslovenská energetika, a.s.

SEAS-NVE Holding A/S

OVAG Oberhessische Versorgungsbetriebe AG

Schacht GmbH Hoch- und Niederspannung

Intego A/S

Creos Luxembourg S.A.

Isoblock Schaltanlagen GmbH & Co. KG

Thy-Mors Energi A/S

UESA Polska Sp. z o.o.

Stadtwerke Lübeck GmbH

Vattenfall Europe AG

SÜC Energie und H2O GmbH

Movie

Boundless-Reliability

Optimum solution concept for Intelligent transformer substations

Medium-voltage and low-voltage systems change due to the increasing integration of decentralized renewable power supplies and the emerging electromobility trend in the public transport sector.
While the increasing need for load capacity can be provided by means of system expansion, the effects due to alternating direction of power flow, load fluctuations and voltage range limitation can only be handled with intelligent solutions.

Intelligent transformer substations from Siemens offer the optimum solution concept: