Applications of Selective Stator Ground Fault Protection on Expanded Unit Connection

Electric Power Construction ›› 2011, Vol. 32 ›› Issue (12) : 57-60.

PDF(1183 KB)
Electric Power Construction
PDF(1183 KB)
Electric Power Construction ›› 2011, Vol. 32 ›› Issue (12) : 57-60.

Applications of Selective Stator Ground Fault Protection on Expanded Unit Connection

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对南瑞继保RCS 985/S型发电机定子接地保护原理进行了分析。南瑞继保RCS985/S型发电机定子接地保护采用发电机机端零序电流、接地变压器二次侧电流以及发电机零序电压构造零序方向元件，以基波零序电压作为动作判据，能够准确判断发电机区内、区外单相接地故障，分析了该保护在长洲水利枢纽工程应用中的可行性。介绍了该保护在长洲水利枢纽工程中的应用并提出了使用范围，为南瑞继保RCS985/S型发电机定子接地保护选型提供了依据。

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Applications of Selective Stator Ground Fault Protection on Expanded Unit Connection[J]. Electric Power Construction. 2011, 32(12): 57-60
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