Gas Insulated Switchgear
General Information
- Description
- General Information
- Intelligent Control and Monitoring
Our 8D range of gas-insulated switchgear represents a highly successful product concept. Since its introduction back in 1968, Siemens has installed more than 26,000 bays worldwide in all climatic zones of the earth. Well over 286,000 bay-years of operation have since been recorded. All those requirements, which are nowadays usually specified for modern and advanced switchgear with respect to performance and reliabiliy, are met by our switchgear for rated voltages from 72.5 kV of up to 800 kV.
Cost-effectiveness, reliability and customer support are the distinctive features of our 72.5 to 800 kV range of gas-insulated switchgear. Their compact design allows their use in the most confined spaces, whether in the basement of a highrise building, in a department store, in an industrial plant, on the first floor of an old historic building or in a mobile container.
Modern cast-aluminium enclosures render our switchgear safe to touch and resistant to environmental conditions. By virtue of its high quality, our switchgear is almost maintenance-free. The electromagnetic compatibility provides reliable protection for operating personnel and environment. The modular structure of the switchgear permits flexible designs and problem-free extension.
Our experience gained from over 40 years with SF6 technology and in the meantime from more than 26,000 switchgear bays installed worldwide, together with continuous development based on the latest research findings, assures demand-oriented technology and the highest possible level of quality and cost-effectiveness for our current family of products. In addition to gas-insulated switchgear, we also supply gas-insulated transmission lines (GIL) for transmitting high capacities of power over long distances.
Description
With the intelligent control and monitoring solution SICAM, Siemens has created a new system of hard- and software components for the automation of switchgear in the field of electrical energy supply.
The flexible protection and control system offers a sequence of new functions:
- Self-monitoring and remote diagnostics for extended efficiency
- Graphical user interface for operator control and diagnostics
- Telemonitoring and -service
- Modular structure for customer-specific solutions
PD Monitoring (Partial Discharge)
Partial discharge monitoring increases the reliability of high-voltage switchgears. It enables any changes in the insulation to be detected at an early stage during normal operation so that appropriate remedial action can be taken. Maintenance measures can thus be controlled according to requirements, thereby reducing operating costs. The measurement data is displayed and archived in the control room. With the aid of an expert system the user can produce trend forecasts from long-term archive data so that potential faults can be eliminated at an early stage. Thanks to the built-in self-monitoring, the system can also be used in unmanned substations.
PD Monitoring Expert (Partial Discharge)
The PD monitoring system is a sophisticated measuring system, by means of which it is possible to monitor internal partial discharges in gas-insulated switchgear (GIS).
It comprises a number of components:
1 SF6 gas-insulated metal-enclosed switchgear
2 Coupler : act as UHF antennas, integrated in the GIS at a number of points
3 PD converter box (node) : Measuring device, connected to the PD couplers of the three phases of a point of installation
4 Optical-fibre bus system : Device for data transmission between the measuring points and the contral processor unit
5 Central processor unit : Monitoring of the data stream from up to 90 measuring points
6 Operator unit : PC for visualisation, archiving and automatic interpretation of the measured data
Modem : for remote operation and data telecommunication
Our Portfolio (7)
Product Information
Contact
Telephone: +49 (9131) 7-34660
Fax: +49 (9131) 7-34662