dc interruption by spiral arc system with capacitor commutation

Journal Article · · Electr. Eng. Jpn. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1002/eej.4391010515· OSTI ID:6018000

Mizuno, T; Maganawa, H; Miyachi, I

In the spiral-arc system a magnetic field is applied in parallel with the axes of the electrodes in the SF/sub 6/ gas. By stretching the arc into a spiral shape the arc voltage is raised corresponding to the source voltage and the interruption of high-voltage dc current is performed. Therefore even in a single unit, it possesses a remarkable dc interrupting characteristic. In this paper, we study experimentally the case where the unit is further combined with capacitor commutation. For the measures of energy treatment produced during the interruption the merit of the spiral arc is revived and the total energy is consumed with proper distribution between the arc energy and the energy charged into the capacitor after commutation. In overvoltage suppression, because there is a limit in the increase of the capacity of the capacitor and the combined use of the arrester, a multi-stage commutation which considers the above-mentioned experimentally.

• OSTI ID: 6018000
• Journal Information: Electr. Eng. Jpn. (Engl. Transl.); (United States), Journal Name: Electr. Eng. Jpn. (Engl. Transl.); (United States) Vol. 101:5; ISSN EENJA
• Country of Publication: United States
• Language: English

Related Subjects

200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
CAPACITORS
CIRCUIT BREAKERS
DC SYSTEMS
DESIGN
ELECTRICAL EQUIPMENT
ENERGY LOSSES
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LOSSES
PERFORMANCE
POWER SYSTEMS
POWER TRANSMISSION
SULFUR COMPOUNDS
SULFUR FLUORIDES