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New Siemens 3WA Air Circuit Breakers Now Upgradable from Web

Power News - Published on Thu, 01 Oct 2020

Image Source: Siemens 3WA Air Circuit Breakers
With the new 3WA series, Siemens Smart Infrastructure is updating its Sentron portfolio of air circuit breakers. As a core element of low-voltage switchboards, they reliably protect electrical installations in buildings, infrastructures and industrial facilities from damage caused by short circuits, ground faults or overload faults. At the same time, the new 3WA circuit breakers meet all low-voltage power distribution requirements in digital environments. They support software-based planning and engineering, digital testing and monitoring, and seamless integration in automation and IoT systems. For the first time, upgrades can be completed 100 percent digitally. Users simply download new features from the Internet and add them using an app.

Siemens circuit breakers are designed for 30,000 operating cycles while requiring only one inspection per year. With a potential service life in excess of 100 years, their practical life averages approximately 10 years.

When technological requirements change, it is easy to add new features to the electronic trip unit ETU600 installed in the 3WA air circuit breakers using the Sentron “powerconfig” commissioning software and a USB or communication port. The features are available online and are continually expanded by Siemens. Users benefit from high investment protection.

For easy and error-free engineering, CAx data can be used to create digital twins of the 3WA air circuit breakers. The intuitive “powerconfig” software is used for parameterization. Just like the associated app, the “powerconfig” software allows for remote monitoring of the current contact states and sensors of all switches and hence early fault detection. Integrated communication and measuring functions capture energy data and transfer it to automation and cloud-based energy management platforms as well as medium-voltage systems. Switched Ethernet functionality makes it possible to use multiple communication protocols such as Profinet and Modbus TCP at the same time, allowing users to benefit from fast and powerful data transfers.
The 3WA air circuit breakers are available in three sizes with nominal currents from 630 to 6,300 A for AC applications and in one size with nominal currents of 1,000, 2,000 and 4,000 A for DC applications.

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Posted By : Yogender Pancholi on Thu, 01 Oct 2020
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