Siemens is developing the world's first air-insulated generator switchgear with vacuum circuit-breaker technology equipped with short-circuit breaking capacity of up to 100 kiloamperes (kA) at 24 kilovolts (kV).
The switchgear type HB3-100 protects operating equipment such as electrical generators and transformers against overvoltage and short-circuit conditions and serves to support automated and demand-controlled operational management of power plants.
These switchgear can be used in hydroelectric power plants, coal-fired units and combined cycle power plants as well as solar-thermal and geothermal power plants with electrical generating capacities of up to 400 megawatts (MW). Thanks to their low-maintenance vacuum circuit-breaker technology and resource-optimized development, the lifecycle costs of HB3-100 switchgear is up to 70 percent less than existing solutions.
"With our new type-tested HB3-100 generator switchgear we are now expanding our product range for power plant operators, municipal utility companies and EPC projects, and offering this proven vacuum circuit-breaker technology also for high operating current applications," explains Stephan May, CEO of Siemens' Medium Voltage and Systems Business Unit. The products of Siemens HB3 series cover 80 percent of all market requirements for this type of switchgear in new power plant units and retrofit projects.
The HB3-100 consists of a generator circuit-breaker in vacuum technology, disconnectors, grounding system and integrated startup disconnect switches. Unlike gas-insulated circuit-breakers, vacuum circuit-breakers interrupt the arc in a high-vacuum interrupter tube.
The single-phase encapsulated unit can handle rated currents of up to 12,500 amperes (A) without forced cooling. It is maintenance-free up to 10,000 electrical switching events and 30 short-circuit interruptions at 100 kA. The hermetically sealed vacuum interrupters require no maintenance as a general rule and are resistant to any environmental influences.
A further important consideration is that no oxidation takes place in the vacuum, so that the metallic surfaces remain permanently clean and ensure a consistently low contact resistance. The lifecycle costs of the HB3-100 switchgear – costing of which covers everything from procurement to final disposal – are between 25 and 70 percent lower than for a generator switchgear with gaseous switching medium (e.g. SF6), depending on the power plant type.
For more information on Siemens' Energy Management Division, go to: www.siemens.com/energy-management
Further informationen on Siemens' generator switchgear systems can be found at www.siemens.com/generatorswitchgear
Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is No. 1 in offshore wind turbine construction, a leading supplier of gas and steam turbines for power generation, a major provider of power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2014, which ended on September 30, 2014, Siemens generated revenue from continuing operations of €71.9 billion and net income of €5.5 billion. At the end of September 2014, the company had around 343,000 employees worldwide on a continuing basis.
Further information is available on the Internet at www.siemens.com
Reference Number: PR2015100042EMEN
Mr. Heiko Jahr
Energy Management Division
Tel: +49 (9131) 7-29575
Heiko Jahr | Siemens Energy Management
Fraunhofer ISE Supports Market Development of Solar Thermal Power Plants in the MENA Region
21.02.2018 | Fraunhofer-Institut für Solare Energiesysteme ISE
New tech for commercial Lithium-ion batteries finds they can be charged 5 times fast
20.02.2018 | University of Warwick
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
23.02.2018 | Physics and Astronomy
23.02.2018 | Health and Medicine
23.02.2018 | Physics and Astronomy