29 Jan '15, 11am

DC commutation breaker successfully tested in 5000-A #HVDC system in #China Highest capacity HVD…

DC commutation breaker successfully tested in 5000-A #HVDC system in #China Highest capacity HVD…

The Siemens MRTB DC commutation breaker (Metallic Return Transfer Breaker) with a rated current of 5000 ampere (A) has been successfully tested in its Xiluodu-Zhejiang high-voltage direct-current (HVDC) transmission system. Special breaker properties are required for transferring such high currents from one current path to another, a process also known as commutation. The circuit-breaker was integrated in the direct-current switchgear of the Shuanlong converter station and allows the uninterrupted switchover from grounding electrode mode to metallic return transfer mode and vice versa with no need for the operator to reduce the transmission power of the system. Until now, this only functioned with rated DC currents below 5000 A. Siemens has now successfully exceeded this limit with its circuit-breaker, thereby improving the operation, stability and reliability of this high...

Full article: http://www.siemens.com/press/en/pressrelease/2015/energym...

Tweets

Siemens hands over the first DC offshore grid c...

siemens.com 30 Jan '15, 10am

"This is the first offshore grid connection worldwide to take up commercial operation with efficient direct-current techno...

Learn more about eBus solutions from Siemens

Learn more about eBus solutions from Siemens

siemens.com 29 Jan '15, 8am

Climate and environment-friendly urban mass transit is a vital component for improving the quality of air in cities and th...

[email protected] and Siemens cooperate regardin...

siemens.com 29 Jan '15, 8am

The two companies have been working together since 2012 within the field of electromobility, and have now strengthened the...

Toyota Hybrid Tested With SiC Power Semiconductors

Toyota Hybrid Tested With SiC Power Semiconductors

hybridcars.com 30 Jan '15, 5am

Toyota launched in Japan a program to test silicon carbide power semiconductors in hybrid vehicles. Using a Camry hybrid p...