[{"name":"Home","site_name":"Press | Company | Siemens","description":"","url_str":"\/global\/","level":0,"image":"","base_root":"https:\/\/press.siemens.com","base_nid":"5","base_nodepath":"\/node\/5","base_path":"\/global\/","base_secure_url":"https:\/\/press.siemens.com\/global","children":null}]
It looks like you are using a browser that is not fully supported. Please note that there might be constraints on site display and
usability.
For the best experience we suggest that you download the newest version of a supported browser:
Press Release11 November 2019Smart InfrastructureZug
Siemens new generator circuit-breaker offers high level of customization
Highly compact design, up to 110 kiloamps
Maintenance-free up to 10,000 interrupting cycles at current of 15 kA
Based on proven HB3 generator platform with vacuum switching tech
Siemens is expanding its HB3 generator circuit-breaker portfolio with a new compact version. The HB3-Compact (HB3-C) offers the possibility for vertical or horizontal mounting and uses maintenance-free vacuum switching technology. These features make it especially valuable for retrofit applications in power plants, where the highest security of supply is crucial, and space is limited due to existing installations. The new system will be presented for the first time at the European Utility Week 2019, taking place in Paris from November 12 to 14.
Highly compact design, up to 110 kiloamps
Maintenance-free up to 10,000 interrupting cycles at current of 15 kA
Based on proven HB3 generator platform with vacuum switching tech
Siemens is expanding its HB3 generator circuit-breaker portfolio with a new compact version. The HB3-Compact (HB3-C) offers the possibility for vertical or horizontal mounting and uses maintenance-free vacuum switching technology. These features make it especially valuable for retrofit applications in power plants, where the highest security of supply is crucial, and space is limited due to existing installations. The new system will be presented for the first time at the European Utility Week 2019, taking place in Paris from November 12 to 14.
With the increasing percentage of renewable power, reliable protection technology is needed to handle higher voltages resulting from temporary higher power infeed, for example. Generator circuit-breakers are key components for improving the reliability and availability of power plants. They protect equipment such as generators and transformers against overload or short circuiting by disconnecting and connecting them from and to the grid.
With its adaptable design and installation, the new HB3-Compact model offers power plant operators the greatest degree of flexibility when designing a new plant or replacing outdated equipment. It has a simplified footprint, which facilitates the designing and dimensioning of the switchgear. Firstly, the supporting frame design can be customized. This means the phases can be fitted in one common or an individual frame design to enable splitting of the phases, for example when installing in different rooms. Secondly, the unit can be mounted horizontally, as well as vertically.
In addition, the phase-to-phase spacing as well as the phase height axis can be adjusted to perfectly match the existing busbar’s connection points. This enables easy integration into existing installations. To guarantee safe maintenance, the circuit-breaker can be fitted with integrated line and earth disconnecting switches. Line disconnecting switches are used to electrically isolate the switchgear or the generator from the grid. The earth disconnecting switches are used to connect the generator and transformer sides to the ground for additional safety.
Besides this flexibility in design, HB3-C also supports plant operators in saving costs during project implementation and operation. Thanks to the unit’s compact size, its transport, erection and commissioning are simplified and outage times for the installation of a new circuit-breaker can be kept to a minimum. The maintenance-free vacuum switching technology used in the switchgears eliminates the need for gas handling, guarantees minimum maintenance costs and increases the recycling rate of the HB3 systems. The HB3-C is part of the Siemens Blue Portfolio, combining high-tech performance with environmentally safe materials and work procedures.
For further information on the HB3-Compact generator
circuit-breaker, please see www.siemens.com/hb3-c
With its adaptable design and installation, the new HB3-Compact model offers power plant operators the greatest degree of flexibility when designing a new plant or replacing outdated equipment.
The HB3-Compact can be mounted horizontally, as well as vertically. The picture shows the horizontal installation.
The HB3-Compact can be mounted horizontally, as well as vertically. The picture shows the vertical installation.
Siemens Smart Infrastructure (SI) is shaping the market for intelligent, adaptive infrastructure for today and the future. It addresses the pressing challenges of urbanization and climate change by connecting energy systems, buildings and industries. SI provides customers with a comprehensive end-to-end portfolio from a single source – with products, systems, solutions and services from the point of power generation all the way to consumption. With an increasingly digitalized ecosystem, it helps customers thrive and communities progress while contributing toward protecting the planet. SI creates environments that care. Siemens Smart Infrastructure has its global headquarters in Zug, Switzerland, and has around 72,000 employees worldwide.
Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 170 years. The company is active around the globe, focusing on the areas of power generation and distribution, intelligent infrastructure for buildings and distributed energy systems, and automation and digitalization in the process and manufacturing industries. Through the separately managed company Siemens Mobility, a leading supplier of smart mobility solutions for rail and road transport, Siemens is shaping the world market for passenger and freight services. Due to its majority stakes in the publicly listed companies Siemens Healthineers AG and Siemens Gamesa Renewable Energy, Siemens is also a world-leading supplier of medical technology and digital healthcare services as well as environmentally friendly solutions for onshore and offshore wind power generation. In fiscal 2019, which ended on September 30, 2019, Siemens generated revenue of €86.8 billion and net income of €5.6 billion. At the end of September 2019, the company had around 385,000 employees worldwide. Further information is available on the Internet at www.siemens.com.
