Transient recovery voltage considerations in the application of medium-voltage circuit breakers

被引:18
|
作者
Swindler, DL
Schwartz, P
Hamer, PS
Lambert, SR
机构
[1] FLUOR DANIEL INC,IRVINE,CA 92730
[2] CHEVRON RES & TECHNOL CO,RICHMOND,CA 94802
[3] POWER TECHNOL INC,SCHENECTADY,NY 12301
关键词
EMTP; medium voltage circuit breaker; transient recovery voltage;
D O I
10.1109/28.567999
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Medium-voltage circuit breakers can fail to interrupt three-phase fault currents when power systems have transient recovery voltage (TRV) characteristics which exceed the rating of the circuit breaker, This paper examines the application of 13.8-kV generation and load switchgear for an oil refinery in which circuit parameters as originally designed would have exceeded the 13.8-kV circuit breakers' TRV ratings had corrective measures not been taken, This paper illustrates this case and discusses the basis of TRV, how TRV is assessed, and alternative actions taken to bring circuits to within the 13.8-kV circuit breaker ratings.
引用
收藏
页码:383 / 388
页数:6
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