Procedure for the optimization of sf<sub>6</sub> circuit‐breakers

Habedank, U.; Knobloch, H.

doi:10.1002/etep.4450020509

Cited by 4 publications

(1 citation statement)

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“…After the MV Busbar, each line is protected by a typical vacuum circuit breaker of the type employed in MV distribution systems. A functional model of the vacuum circuit breaker has been derived from the international literature [ 17 – 20 ]. The final model ( Figure 3 ) implements the following features: arc resistance when it is switched off; reignition of the arc when it is switched off; chopping of the current when it is switched off; asynchronous closing and opening of the three poles.…”

Section: A Model Of the Distribution Systemmentioning

confidence: 99%

An Analysis of Transient Overvoltages during the Energization of Electric Ship Propulsion Systems

Brenna

Foiadelli

Zaninelli

2015

The Scientific World Journal

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This paper addresses the resonance phenomena that can occur in an isolated distribution system during transient events such as repeated energizations or power converter switching. In particular, the aim of this study is to analyze the energization of an onboard radial distribution system installed on an electric ship and to determine how the various leakage parameters that can cause resonance problems such as high peak overvoltages when the circuit breaker is closed are relevant. The paper presents a detailed model of whole distribution system, which is validated using infield measurements that refer to a real case in which these events damaged the ships transformers, causing it to be removed from duty.

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