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1.发明公开Improved ground fault handling in power distribution systems with mixed underground and aerial power lines 审中-公开改进Erdfehlerhandhabung与混合埋藏和架空电力线路配电系统
公开(公告)号：EP2530804A1
公开(公告)日：2012-12-05
申请号：EP11168340.5
申请日：2011-06-01
申请人： ABB Research Ltd.
发明人： Reza, Muhamad , Hultqvist, Lars , Rivas, Richard , Silversten, Bo
摘要： The present invention relates to a a power transmission and/or distribution system (10) comprising a power grid (G), a first power transmission section (12) and a ground fault handling device (GHR) for connecting the grid to the first section, where the first section (12) is of a first type including at least one underground power line. The ground fault handling device comprises a first isolating transformer (IT1) having a first set of windings and a second set of windings, where the first set is coupled to the gird, the second set is coupled to the first section and the windings of the second set are solidly or resistively (R1, R3, R4, R5) grounded. There is also at least one grounding transformer (GT1, GT2, GT3) shunt connected between an isolating transformer of a ground fault handling device and a power transmission section.
摘要翻译： 本发明涉及一种包括一个电力网（G）AA功率传输和/或分配系统（10），第一动力传递部（12）和用于在网格连接到所述第一部分中的接地故障处理设备（GHR）， 其中，所述第一部分（12）是第一类型的，包括至少一个地下电力线的。 接地故障处理设备包括：具有第一组绕组和一第二组绕组，其中，所述第一组耦合到所述网格的一个第一隔离变压器（IT1），所述第二组联接到所述第一部分和的绕组 第二组是牢固地或通过电阻（R1，R3，R4，R5）接地。 因此，存在的至少一个接地变压器（GT1，GT2，GT3）在分离的接地故障处理设备和动力传递部的连接变压器之间分流。
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2.发明公开Ground fault handling in power distribution systems with mixed underground and aerial power lines 有权Stromverteilung系统中的Erdfehlerhandhabung不锈钢Stromleitungen
公开(公告)号：EP2330709A1
公开(公告)日：2011-06-08
申请号：EP09177758.1
申请日：2009-12-02
申请人： ABB Research Ltd.
发明人： Hultqvist, Lars , Reza, Muhamad , Rivas, Richard
摘要： The present invention relates to a ground fault handling device (GHR) that provides an interface between two power transmission sections of a power transmission and/or distribution system as well as to such a power transmission and/or distribution system (10). The system comprises a first and a second power transmission section (G, 12) and the ground fault handling device (GHR) for connecting the first section to the second section, where the second section (12) is of a first type including at least one underground power line and the first section (G) is of another type lacking underground power lines. The ground fault handling device comprises a first isolating transformer (IT1) having a first set of windings and a second set of windings, where the first set is coupled to the first section, the second set is coupled to the second section and the windings of the second set are solidly or resistively (R1, R3, R4, R5) grounded.
摘要翻译： 本发明涉及一种在动力传输和/或分配系统的两个电力传输部分之间以及这种电力传输和/或分配系统（10）之间提供接口的接地故障处理装置（GHR）。 该系统包括用于将第一部分连接到第二部分的第一和第二动力传递部分（G，12）和接地故障处理装置（GHR），其中第二部分（12）至少包括 一条地下电力线和第一段（G）是另一种缺乏地下电力线的类型。 接地故障处理装置包括具有第一组绕组和第二组绕组的第一隔离变压器（IT1），其中第一组耦合到第一部分，第二组联接到第二部分，并且绕组 第二组固定或电阻（R1，R3，R4，R5）接地。
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3.发明授权
公开(公告)号：EP2330709B1
公开(公告)日：2019-07-31
申请号：EP09177758.1
申请日：2009-12-02
申请人： ABB Research Ltd.
发明人： Hultqvist, Lars , Reza, Muhamad , Rivas, Richard
摘要： The present invention relates to a ground fault handling device (GHR) that provides an interface between two power transmission sections of a power transmission and/or distribution system as well as to such a power transmission and/or distribution system (10). The system comprises a first and a second power transmission section (G, 12) and the ground fault handling device (GHR) for connecting the first section to the second section, where the second section (12) is of a first type including at least one underground power line and the first section (G) is of another type lacking underground power lines. The ground fault handling device comprises a first isolating transformer (IT1) having a first set of windings and a second set of windings, where the first set is coupled to the first section, the second set is coupled to the second section and the windings of the second set are solidly or resistively (R1, R3, R4, R5) grounded.
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