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Thermal Recovery Characteristics of a CO2 Mixture Gas Circuit Breaker
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 Title & Authors
Thermal Recovery Characteristics of a CO2 Mixture Gas Circuit Breaker
Oh, Yeon-Ho; Song, Ki-Dong; Lee, Hae-June; Hahn, Sung-Chin;
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 Abstract
Interruption tests were conducted using the same circuit breaker for an initial pressure of SF6 0.5 MPa (gauge pressure) and CO2 mixture 1.0 MPa, 0.8 MPa, and 0.6 MPa. The pressure-rises in the compression and thermal expansion chambers were measured for verifying the computational results using a simplified synthetic test facility. Further, the possibility of the CO2 mixture substituting SF6 gas was confirmed. Moreover, in view of the thermal recovery capability, it has also been confirmed that the pressure of the CO2 mixture can be reduced almost to the same value as that of the SF6 gas by optimizing the design parameters of the interrupter.
 Keywords
Gas circuit breaker;CO2;SF6;Thermal recovery;Global warming potential;
 Language
English
 Cited by
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