-
1.发明公开
公开(公告)号：EP3929607A1
公开(公告)日：2021-12-29
申请号：EP21183309.0
申请日：2018-12-11
申请人： ABB SCHWEIZ AG
IPC分类号： G01R31/52
摘要： The present invention relates to a switchgear leakage current monitoring system (1) for a high voltage or medium voltage switchgear, comprising at least one sensor (14, 16, 17), and a leakage current monitoring unit (22). The at least one sensor comprises at least one conducting layer or electrode (14), wherein each sensor comprises a conducting layer or electrode. The at least one conducting layer or electrode is attached or integrated on at least one surface of at least one insulating component (11) of a high voltage or medium voltage switchgear. Each insulating component has a conducting layer or electrode attached or integrated on its surface. The at least one sensor is configured to acquire at least one leakage current signal. Each sensor is configured to acquire a leakage current signal on a surface of the insulating component to which its corresponding conducting layer or electrode is attached or integrated. The at least sensor has at least one data connection (24) to the leakage current monitoring unit. The leakage current monitoring unit is configured to be provided with at least one measurement data relating to the at least one leakage current signal via the at least one data connection.
-
2.发明公开
-
3.发明公开
-
公开(公告)号：EP3968349A1
公开(公告)日：2022-03-16
申请号：EP20196271.9
申请日：2020-09-15
申请人： ABB Schweiz AG
IPC分类号： H01H33/42 , H01H3/30 , H01H3/34 , H01H3/36 , H01H3/40 , H01H3/46 , H01H3/58 , H01H33/40 , H01H33/52 , H01H33/666
摘要： The present invention relates to a drive for a low, medium or high voltage switch, comprising a pushrod (10); a sun cogwheel (30); at least one planetary cogwheel (40); a carrier (50); a cogwheel ring (60); and an energy provider (70, 120, 150). An axis of the pushrod is coaxial with an axis of the sun cogwheel, and a rotation of the sun cogwheel is configured to move the pushrod along the axis of the pushrod. An axis of the carrier is coaxial with the axis of the sun cogwheel. An axis of the cogwheel ring is coaxial with the axis of the sun cogwheel. The at least one planetary cogwheel is located between the sun cogwheel and the cogwheel ring. Each planetary cogwheel of the at least one planetary cogwheel is connected to the carrier such that when the carrier rotates about the axis of the sun cogwheel a centre axis of each planetary cogwheel rotates with the carrier. Each planetary cogwheel is configured to rotate about its own centre axis. The energy provider is coupled to the carrier. In a first switching action energy release from the energy provider is configured to rotate the carrier in a first rotational direction about the axis of the sun cogwheel to rotate the sun cogwheel in the first rotational direction to move the pushrod along the axis of the pushrod in a first direction.
-
公开(公告)号：EP3965131A1
公开(公告)日：2022-03-09
申请号：EP20195067.2
申请日：2020-09-08
申请人： ABB Schweiz AG
IPC分类号： H01H3/40 , H01H33/666 , H01H3/30 , H01H31/28 , H01H31/32 , H01H33/40 , H01H33/42 , H01H3/36 , H01H3/46 , H01H33/02
摘要： The present invention relates to a low, medium or high voltage two or three position switch, comprising. a shaft (6); a sun cogwheel (5); at least one planetary cogwheel (4); and a cogwheel ring (7): The shaft is fixedly connected to the sun cogwheel such that an axis of the shaft is coaxial with an axis of the sun cogwheel and the shaft and sun cogwheel rotate together. The sun cogwheel comprises a plurality of outward facing teeth. An axis of the cogwheel ring is coaxial with the axis of the sun cogwheel. The cogwheel ring comprises a plurality of inward facing teeth. The at least one planetary cogwheel is located between the sun cogwheel and the cogwheel ring. The at least one planetary cogwheel comprises a plurality of outward facing teeth. Some teeth of the at least one planetary cogwheel are engaged with some teeth of the sun cogwheel and some other teeth of the at least one planetary cogwheel are engaged with some teeth of the cogwheel ring. In a first switching action, a rotation of the at least one planetary cogwheel about the axis of the sun cogwheel in a first rotational direction is configured to rotate the sun cogwheel in the first rotational direction; and the rotation of the shaft associated with the rotation of the sun cogwheel in the first rotational direction is configured to transition the switch from a first switch-state to a second switch-state.
-
6.发明公开
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.01 秒)
