Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New AFDD prevents smoldering fires in PV systems

02.04.2015

Siemens launches a new arc fault detection device (AFDD) designed for use with photovoltaic systems. The device from the 5SM6 product family detects hazardous arcing faults in the strings of a PV system, and responds with an immediate acoustic and visual alarm. Arcing faults occur in defective string insulation or faulty cables. The result is rapid overheating, which may cause smoldering fires. The AFDD can be combined with other protection and switching devices, e.g. a molded case circuit breaker (MCCB). The device combination will ensure an automatic disconnection of the relevant system part in case of an arcing fault. Siemens has previously been offering AFDDs for electric installations in buildings.

In order to prevent smoldering fires in PV systems, an AFDD permanently measures the intensity and duration of high-frequency noise associated with the voltage and current, as well as noise lapses. Any abnormalities are reported immediately.


The new device from the 5SM6 product family detects hazardous arcing faults in the strings of a PV system.

Once the cause for an arcing fault has been remedied, the AFDD can then be reset. The arcing fault LED will light up again immediately if the problem was not completely resolved or if other arcing faults are occurring. AFDDs can be surface-mounted or clipped onto a standard mounting rail.

The device is therefore easily integrated in new systems and can be retrofitted in existing systems.

Arcing faults are a particularly high risk in solar power systems: On the one hand, the installations are often subject to extreme environmental conditions, including pressure from snow loads or high winds, which can result in damage to the system.

On the other hand, a solar system represents an increased risk for rescue workers in case of fire when attempting to extinguish the fire with water, if no appropriate disconnecting device is installed with the result that the systems are still supplied with voltage.

For further information on Division Energy Management, please see www.siemens.com/energy-management

For further information on AFDD, please see www.siemens.com/afdd


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 combined cycle 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: PR2015040178EMEN


Contact
Mr. Heiko Jahr
Energy Management Division
Siemens AG

Freyeslebenstr. 1

91058 Erlangen

Germany

Tel: +49 (9131) 7295-75

heiko.jahr​@siemens.com

Heiko Jahr | Siemens Energy Management

More articles from Power and Electrical Engineering:

nachricht MTU engineers examine lithium battery defects
27.01.2020 | Michigan Technological University

nachricht New electro-pulse plant at TU Freiberg enables energy-efficient processing of high-tech metals
23.01.2020 | Technische Universität Bergakademie Freiberg

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Integrate Micro Chips for electronic Skin

Researchers from Dresden and Osaka present the first fully integrated flexible electronics made of magnetic sensors and organic circuits which opens the path towards the development of electronic skin.

Human skin is a fascinating and multifunctional organ with unique properties originating from its flexible and compliant nature. It allows for interfacing with...

Im Focus: Dresden researchers discover resistance mechanism in aggressive cancer

Protease blocks guardian function against uncontrolled cell division

Researchers of the Carl Gustav Carus University Hospital Dresden at the National Center for Tumor Diseases Dresden (NCT/UCC), together with an international...

Im Focus: New roles found for Huntington's disease protein

Crucial role in synapse formation could be new avenue toward treatment

A Duke University research team has identified a new function of a gene called huntingtin, a mutation of which underlies the progressive neurodegenerative...

Im Focus: A new look at 'strange metals'

For years, a new synthesis method has been developed at TU Wien (Vienna) to unlock the secrets of "strange metals". Now a breakthrough has been achieved. The results have been published in "Science".

Superconductors allow electrical current to flow without any resistance - but only below a certain critical temperature. Many materials have to be cooled down...

Im Focus: Programmable nests for cells

KIT researchers develop novel composites of DNA, silica particles, and carbon nanotubes -- Properties can be tailored to various applications

Using DNA, smallest silica particles, and carbon nanotubes, researchers of Karlsruhe Institute of Technology (KIT) developed novel programmable materials....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

11th Advanced Battery Power Conference, March 24-25, 2020 in Münster/Germany

16.01.2020 | Event News

Laser Colloquium Hydrogen LKH2: fast and reliable fuel cell manufacturing

15.01.2020 | Event News

„Advanced Battery Power“- Conference, Contributions are welcome!

07.01.2020 | Event News

 
Latest News

The synthesis of bio-based high-performance polyamide from biogenic residues: A real alternative to crude oil

27.01.2020 | Life Sciences

Superfast insights into cellular events

27.01.2020 | Life Sciences

The 'place' of emotions

27.01.2020 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>