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November 15, 2019

Siemens HB3-Compact
Siemens HB3-Compact generator circuit-breaker

With its HB3-Compact generator circuit-breaker, Siemens provides a unique generator circuit breaker solution to the most challenging constraints. Offering more customization options, the generator circuit-breaker can be mounted either vertically or horizontally, and its phase-to phase spacing and phase height axis can be adjusted to match perfectly to the existing busbar connection points. The circuit-breaker can also be fitted with integrated line disconnecting switch and earth disconnecting switch on generator side and/or on transformer side. 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.

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model offers power plant operators the greatest degree of flexibility when designing a new plant or replacing outdated equipment.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. The supporting frame design can be customized, meaning 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. 
 
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.

 

  • Highly compact design
  • Up to 75% OPEX savings due to vacuum technology performance
  • Up to 110 kA breaking capabilities
  • Up to 15,000 A rated nominal current
  • Up to 24 kV rated nominal voltage
  • Maintenance-free up to 10,000 interrupting cycles at current of 15 kA 
  • Vertical and horizontal installation
  • Common and individual supporting frame design
  • Can be delivered with integrated line disconnecting switch, earth disconnecting switch on generator side and/or transformer side
  • Based on proven HB3 generator platform with vacuum switching tech

 

More information on the HB3-Compact generator circuit-breaker

HB3-Compact generator circuit-breaker flyer

Editor's Pick: Featured Product News


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Extremely space-saving and flexible

The C60xx series of scalable ultra-compact Industrial PCs combines maximum computing power in what is currently the most compact format with a wide range of options for installation in the control cabinet. It is ideally suited for control, visualization and communication, for example into the cloud.

The latest Intel processors − in three different performance classes, from the Intel Atom with one core to the Intel Core i7 with eight cores – offer maximum scalability and power density with an optimal price-performance ratio.

Performance classes and application areas

The C601x series offers Intel Atom computing power for a wide range of automation and visualization tasks. Due to their impressive computing power in relation to their size, the PCs are mainly suited for use in Industrie 4.0 applications, for example as an IoT gateway.

The C603x series unites high-performance Intel Core-i processors with extremely compact housing dimensions. The processors from the 65 W class have only been used in the much larger ATX-based Industrial PCs up to now. The devices thus represent a new dimension in terms of power density. They are suitable above all for particularly complex automation and visualization tasks, but also for a wide range of other applications in the field of image processing, the handling of large volumes of data and in the IoT environment.

The C602x series is the link between the C601x and the C603x, and the fanless integration of Intel Core-i-U processors of the 15 W class opens up new application areas and options.

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TE Connectivity has recently upgraded its rugged, high-speed Mezalok mezzanine connector family to support the growing demand for higher data rates and improved processing power in military electronics. The upgraded connectors have increased data rate support up to 32+ Gb/s. The Mezalok connector family has been designed specifically for mezzanine cards in rugged applications and is standardized as the interconnect for XMC 2.0 (VITA 61). Rapidly evolving technologies in signal intelligence, radar, communications and surveillance are driving the need for more powerful embedded computing solutions. 

Mezzanine cards are often used to provide additional functionality and processing capability within a small form factor. TE designed the Mezalok connector family to support these applications. Typical applications include application-specific high-speed input/output (I/O) protocols, graphics, memory and digital-signal processing.

“New designs in rugged embedded computing require higher speeds and high pin counts in order to pack more functionality into smaller plug-in modules,” said Jason Dorwart, product manager for TE’s Aerospace, Defense and Marine division. “TE recognizes this trend and is continuing to build on this platform to help solve customer needs, offering new options in stack height, pin density and higher speeds, giving the system designer a broader solution set to work with when needing a fast, rugged and reliable mezzanine connector for extreme environments.” 

TE’s highly reliable Mezalok mezzanine connectors more than double the speed and durability of competing technology, making it one of the most viable options for today’s military and commercial aerospace applications.

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