Current chopping phenomena in SF<sub>6</sub> selfblast circuit breakers

Voigt, G.

doi:10.1002/etep.4450030608

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1998

2011

Publication Types

Select...

Book2

Article1

Other1

Relationship

Self Cite0

Independent4

Authors

Journals

Cited by 4 publications

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Electrode‐fall voltages of SF₆ and air arcs between electrodes of Fe, W, Cu‐W, Cu and Ti in the current range from 10 A to 20 kA

Yokomizu

Matsumura

Henmi

et al. 1998

Int Trans Elec Energy Syst

View full text Add to dashboard Cite

Measurements were made of the sum of cathode-fall and anode-fall voltages, i .e. electrode-fall voltage Usa,, for SFg and air arcs at a presscire of 0. I MPa in a wide current range from 10 A to 20 kA. The arcs were burned between electrodes of iron, tungsten, copper-tungsten, copper and titanium. For each electrode, Ufall at a given current was estimated as the arc voltage at the zero gap length between the electrodes, which was extrapolated from arc voltages measured in short gaps with lengths below 3 mm. The electrode-fall voltage Ufoll of the sF6 arc proved to be 17.5 r! 13.8 17.5 I ( 17.5 V and 17.3 V for the Fe, W, Cu-W, Cu and Ti electrodes, respectively. The electrode-fall voltage Ufa1l was affected by the electrode material, while V,, of the air arc is almost the same as that of the sF6 arc. It was also found that Ufalt of each arc at a given electrode was independent of current in the above range.

show abstract