Air Insulated Switchgear
- Description
- Turnkey
- Upgrade
- 800 kV
Our services include the complete planning, delivery and turn-key erection of air-insulated switchgear for 52 kV and upwards. Our open-air switchgear provides:
- a high level of performance and economy
- reliability and operational safety
- high availability and long life
Our references from all climatic zones of the world with voltages up to 800 kV and currents up to 8000 A speak for themselves. In order to fulfil your wishes and requirements, highly trained experts are available in our regional agencies.
Turnkey Distribution Substations
| Plant details | Romania's link to the European interconnected grid - Turnkey distribution substations containing redundant remote control and protection systems for maximum safty requirements |
| Project name | Oradea |
| Contractor | Transelectrica S.A. |
| Location | Oradea / South-Romania |
| Year of order | 2002 |
| Year of completion | 2004 |
| Voltage | 123 kV | 420 kV |
| Frequency | 50 Hz | 50 Hz |
| Lightning impulse withstand voltage | 550 kV | 1425 kV |
| current busbar / feeder | 1600 / 1600 A | 2000 / 2000 A |
| Short-time withstand current / duration | 31.5 kA / 1s | 40 kA / 1s |
| Short-circuit breaking current | 31.5 kA | 31.5 kA |
Scope
- New construction of 400 kV substation
- 5 bays double busbar with sectionalizer and bus coupler
- Type of circuit-breaker 3AP2 with stored-energy spring mechanism
- Replacement of an old 110 kV substation
- 16 bays double busbar with sectionalizer and bus coupler
- Type of circuit-breaker 3AP1 with stored-energy spring mechanism
- Redundant remote control and protection systems for maximum safety requirements 400/110 kV
Upgrade of Transmission System
| Plant details | The high-voltage transmission system was upgraded from 220 kV to 380 kV in Thüringen / Germany on a large scale. Within the scope of the new construction Siemens AG won 1997 the contract to built 9 bays 380 kV air insulated switchgear inclusive necessary secondary equipment. First the existing 220 kV substation had to be disassembled and cleaned up to get space for the new substation. |
| Project name | UW Remptendorf |
| Contractor | Vattenfall Europe Transmission GmbH (VET) |
| Location | Remptendorf, Thüringen / Germany |
| Year of order | 1997 |
| Year of completion | 2002 |
| Voltage | 420 kV |
| Frequency | 50 Hz |
| Lightning impulse withstand voltage | 1425 kV |
| current busbar / feeder | 4000 / 3150 A |
| Short-time withstand current / duration | 63 kA / 1s |
| Short-circuit breaking current | 50 kA |
Scope
- New construction of 380 kV air insulated substation
- 9 bays double busbar
- Type of circuit-breaker 3AQ2
- Sectional disassembly of the 220 kV switchgear system
- AC&DC auxiliary supply system incl. battery stand-by supply
- Protection system
- Interconnection to the control system (customer equipment)
- Telecommunication system
- Remote control system (customer equipment)
- Reactive-power compensation equipment
- Interconnection to the 110 kV substation already in operation
800 kV Transformer Substation
| Plant details | In India, commissioning of the plant and the associated raising of transmission voltage from 400 to 765 kV were celebrated as "entry into a new age in power supply". The Sipat power plant feeds power into India's western and northern supply networks via the Seoni substation. |
| Project name | Seoni Substation |
| Contractor | Power Grid Corporation of India Ltd. |
| Location | Seoni in Madhya Pradesh |
| Year of order | 2005 |
| Year of completion | 2007 |
| Voltage | 800 kV |
| Frequency | 50 Hz |
| Lightning impulse withstand voltage | 2100 kV |
| current busbar / feeder | 3150 A |
| Short-time withstand current / duration | 40 kA / 1s |
| Short-circuit breaking current | 40 kA |
Contact
Phone: +49 (9131) 7-34660
Fax: +49 (9131) 7-34662