Development of gapless metal oxide surge arresters for 362 kV gas-insulated substations

Journal Article · Thu Jul 01 00:00:00 EDT 1982 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1982.317489· OSTI ID:5190238

Miller, D B; Novrai, A; Reuther, R W; Tahiliani, J

A 362 kV gapless metal oxide surge arrester for gas-insulated substations is described. The active stack consists of 3 parallel 250 cm-long columns, each column made up of ten modules of soldered MOV blocks. Satisfactory thermal performance is achieved by a thermal electric design model, confirmed by thermal mock-up tests and temperature recordings during final prototype tests. Ceramic capacitors are employed for uniform voltage grading. Dielectric design is used to keep electric stress below 4 kV (rms)/mm at maximum expected operating voltage. Laboratory testing of the prototype was performed up to 285 kV (rms). Insulation coordination studies show the advantages of using gapless gas-insulated arresters for improved performance.

• Research Organization: Brown Boveri Electric, Inc.
• OSTI ID: 5190238
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Vol. PAS-101:7
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CIRCUIT BREAKERS
DESIGN
EQUIPMENT PROTECTION DEVICES
GAS-INSULATED SUBSTATIONS
LIGHTNING ARRESTERS
CAPACITORS
ELECTRICAL INSULATION
KEV RANGE 100-1000
PERFORMANCE TESTING
SURGES
ELECTRICAL EQUIPMENT
ENERGY RANGE
EQUIPMENT
KEV RANGE
POWER SUBSTATIONS
TESTING
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)