New hv and ehv air blast circuit breaker design. I. Ratings, construction, and testing

Journal Article · Sun Jan 01 04:00:00 EST 1967 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1967.291961· OSTI ID:6865454

Albani, O J; Lester, G N

In the electric power industry, much effort has been expended in the development of oilless circuit breakers, particularly for use in extra high voltage (ehv) systems. A new line of hv and ehv air blast circuit breakers having a 2 cycle interrupting time rating, and an operating pressure of 370 psi is described. The breakers utilize separate power interrupting and circuit isolation modules to permit maximum flexibility in building breakers with a variety of interrupting ratings at various voltage levels, from the hv classes to 550 and 765 kV and above. The application, as required, of resistors on the breakers is described, including high ohmic voltage grading resistors or medium ohmic circuit modifying resistors on the interrupting modules, and closing resistors on the isolator modules for closing surge control.

• OSTI ID: 6865454
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. 86; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CIRCUIT BREAKERS
DESIGN
EHV AC SYSTEMS
ELECTRICAL EQUIPMENT
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HVAC SYSTEMS
PERFORMANCE
POWER SYSTEMS
SULFUR COMPOUNDS
SULFUR FLUORIDES