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.
Our Portfolio (5)
Gas-insulated switchgear 8DJ20
Maintenance-free for lifetime
- Overview
- Technical Data
- Front and side view
- Technical Articles
- Approval
- References
- Movie
8DJ20
- Up to 17.5 kV, 25 kA, 630 A feeders
Up to 24 kV, 20 kA, 630 A feeders - Switchgear in block-type construction, non-extendable
- Gas-insulated
- Sealed
- Factory-assembled, type-tested switchgear according IEC 62 271-200
- Customer's Benefit:
- Environmental Independence
- Compactness
- Maintenance-free Design
- Personal Safety
- Security of Operation, Reliability
- Cost-efficient, Ecological
| Rated voltage | kV | 7.2 | 12 | 15 | 17.5 | 24 |
|---|---|---|---|---|---|---|
| Rated frequency | Hz | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
| 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 peak withstand current | kA | ≤ 63 | ≤ 63 | ≤ 63 | ≤ 63 | ≤ 50 |
| Rated short-circuit making current | kA | ≤ 63 | ≤ 63 | ≤ 63 | ≤ 63 | ≤ 50 |
| 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 short-circuit breaking current | kA | ≤ 25 | ≤ 25 | ≤ 25 | ≤ 25 | ≤ 20 |
| Rated normal current of busbar | A | ≤ 630 | ≤ 630 | ≤ 630 | ≤ 630 | ≤ 630 |
| Rated normal current of feeder | A | ≤ 630 | ≤ 630 | ≤ 630 | ≤ 630 | ≤ 630 |
| Rated normal current for transformer feeders | A | 200 | 200 | 200 | 200 | 200 |
| Degree of protection - Primary part (main circuit) | IP65 | IP65 | IP65 | IP65 | IP65 |
* 42 kV / 95 kV according to some national requirements
| Partition Class: | PM (metallic partition) |
| Loss of service continuity category panels: 1) - with HV HRC fuses - without HV HRC fuses (RK, T, LST) | LSC 2A LSC 2B |
| Accessibility of Compartments (enclosure): - Busbar compartment: - Switching-device compartment: - Cable compartment Switchgear with HV HRC fuses (T...) Switchgear without HV HRC fuses Switchgear scheme 01 (1 T) | Access option non accessible non accessible Interlock-controlled Interlock-controlled tool-based |
| Designation of internal arc classification IAC for - Wall-standing arrangement (standard) | Rated voltage 7.2 kV to 24 kV IAC A FL 21 kA, 1 s |
| Type of accessibility A - F - L | Switchgear in closed electrical service location, access "for authorized personnel only" (according to IEC 62271-200) Front Lateral |
| Arc test current 2) | Up to 21 kA |
| Test duration | 1 s |
1) The loss of service continuity category is always refered to the complete
switchgear, i.e. the panel with the lowest category defines the loss
of service continuity category of the complete switchgear..
2) 8DJ20 switchgear with pressure absorber:
Arc test current up to 16 kA, for overall height of switchgear 1400 and 1760 mm
Technical Articles
| Mittelspannungs-Schaltanlagen im Einsatz unter Extrembedingungen (np Jg. 42 Heft 5) | 2003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Selective Approval
Gost, Russland
Approval 02/2009
Selective References
| Customer | Country |
| E.ON Bayern AG | Germany |
| ENERCON GmbH | Germany |
| ITALIEN ENEL | Italy |
| Electricity Supply Board | Irland |
| Heinrich Gräper GmbH & Co. KG | Germany |
| EVN AG | Austria |
| Shanghai Nanhua-Lanling Electrical Co. Ltd. | Shanghai |
| EnBW Regional AG | Germany |
| ENEL Distribuzione S.p.A. | Italy |
| Electrabel | Belgien |
| Pauwels Trafo Ireland Ltd. | Irland |
| E.ON Hanse AG | Germany |
| Electricity Authority of Cyprus | Cyprus |
| Sydvest Energi Net A/S | Denmark |
| Cegedel S.A. | Luxemburg |
| Elektrizitätswerke des Kantons Zürich | Switzerland |
| China Light and Power | China/Hongkong |
| Helsingin Energia | Finnland |
| Centralschweizerische Kraftwerke AG | Switzerland |
| E.ON Ceska republika a.s | Czech republik |
| RWE Systems AG | Germany |
| KELAG Elektrizitäts-AG | Austria |
| Shanghai Nanhua Lanling | China |
| Services Industriels de Geneve | Switzerland |
| ACEA | Italy |
| Latvenergo, AS Sadales Tikls | Latvia |
| Gräper | Germany |
| Betonbau s. r. o. | Germany |
| Thy-Mors Energi A/S | Denmark |
| The Jordanian Electric Power Company Ltd. | Jordanien |
| uesa Polska Sp. z o.o. | Polen |
| ENERCON GmbH Aurich | Germany |
| Metro Santiago de Chile | Chile |
| Shanghai DETA International Trading Co., Ltd. | China |
Download
Catalogue 8DJ20