-
公开(公告)号：EP0917157A2
公开(公告)日：1999-05-19
申请号：EP98660120.1
申请日：1998-11-10
申请人： ABB Transmit Oy
IPC分类号： H01B17/00
CPC分类号： H01B17/005 , G01R15/16 , G01R15/181
摘要： The invention relates to an insulator, particularly a bushing insulator comprising a primary conductor (1), centrally led through the body (2) of the insulator, at least one of its ends having given external dimensions, a current measuring element (6) disposed about the primary conductor, and at least one voltage measuring element (7) based on voltage division and also disposed about the primary conductor. In accordance with the invention, the external dimensions of the primary conductor (1), at least by the voltage measuring element (7), define a substantially, e.g. at least 5%, smaller cross-sectional area than the cross-sectional area defined by the external dimensions of the primary conductor at said end thereof.
摘要翻译： 本发明涉及一种绝缘体，特别是包括主导体（1）的套管绝缘体，其中心地引导通过绝缘体的主体（2），其端部中的至少一个具有给定的外部尺寸，设置有电流测量元件（6） 围绕主导体和至少一个基于分压的电压测量元件（7），并且还围绕初级导体设置。 根据本发明，至少通过电压测量元件（7），主导体（1）的外部尺寸限定了基本上例如， 至少5％，比由在其末端处的主导体的外部尺寸限定的横截面积更小的横截面积。
-
2.发明公开
公开(公告)号：EP1018027A1
公开(公告)日：2000-07-12
申请号：EP98941445.3
申请日：1998-08-26
申请人： ABB Transmit Oy
发明人： LEHTONEN, Matti
CPC分类号： G01R31/086 , G01R31/025 , H02H1/0015 , H02H3/385 , Y04S10/522
摘要： The invention concerns a method for locating a high-resistance earth fault in a power distribution system on the basis of current measurements. In the method, variations of the zero sequence voltage U0 and the zero sequence current I0f of the line or line section with their phase angles are measured. The variations are calculated as compared to a more long-term average (e.g. covering a period of 10 minutes). The influence of current through the zero sequence impedance Z0f of the healthy state of the line is deducted from the measured variations in the zero sequence current. Among current measurements compensated in this manner, the one is selected as corresponding to the faulty line or line section which has the greatest absolute value of the current and which simultaneously exceeds a predetermined threshold.
-
3.发明公开METHOD OF DETECTING AND LOCATING A HIGH-RESISTANCE EARTH FAULT IN AN ELECTRIC POWER NETWORK 失效方法在电力供应网络检测和定位高阻抗接地故障
公开(公告)号：EP0876620A1
公开(公告)日：1998-11-11
申请号：EP97942985.0
申请日：1997-10-03
申请人： ABB Transmit Oy
发明人： LEHTONEN, Matti
CPC分类号： G01R31/086 , H02H3/165 , H02H3/402 , Y04S10/522
摘要： The invention relates to detecting and locating a high-resistance earth fault of an electric power network. In the method, the substation is measured at the neutral point voltage (Uo) in phasor format. According to the method, the phase leg voltages of the network are measured in phasor format, the zero-sequence voltage phasor representing the neutral point voltage (Uo) is formed as the phasor sum of the measured phase leg voltages, the zero-sequence impedance (Zo) is computed by means of a network model, whereafter the zero-sequence voltage (Uo) is compared in phasor format with the phasors of the network phase leg voltages (Uv) and the resultant zero-sequence impedance (Zo) of the network, and from these computed variables are derived the fault impedances (Zf) for each phase leg, whereafter the faulted leg is identified as the leg having the greatest value of the real part of the fault impedance (Zf).
-
公开(公告)号：EP0851442A2
公开(公告)日：1998-07-01
申请号：EP97660151.8
申请日：1997-12-19
申请人： ABB Transmit Oy
CPC分类号： G01R15/142 , G01R15/181 , H01F38/36
摘要： The invention relates to a lead-in insulator comprising a primary conductor (4) centrally led through the body (5) of the insulator, a current measuring element (3) arranged around the primary conductor, and a voltage measuring element (2), based on voltage division and arranged inside the current measuring element (3) concentrically therewith. In accordance with the invention the insulator further comprises a second voltage measuring element (1) for voltage detection, arranged substantially axially with respect to said voltage measuring element (2).
摘要翻译： 本发明涉及一种引入绝缘体，其包括：中心地引导通过绝缘体的本体（5）的主导体（4），布置在主导体周围的电流测量元件（3）和电压测量元件（2） 基于分压，并与电流测量元件（3）同心配置。 根据本发明，绝缘体还包括用于电压检测的第二电压测量元件（1），其相对于所述电压测量元件（2）大致轴向设置。
-
5.发明公开
公开(公告)号：EP0958643A1
公开(公告)日：1999-11-24
申请号：EP98902019.0
申请日：1998-02-04
申请人： ABB Transmit Oy
发明人： VIRTANEN, Esa , TIITOLA, Tapani , VIRTANEN, Vesa
CPC分类号： H01H71/122 , H01F27/402 , H01F38/38 , H01H33/555 , H01H35/18 , H01H35/32 , H01H2085/0291
摘要： The invention relates to a circuit breaker, which is in a fault situation arranged to disconnect an electrical apparatus, such as a distribution transformer, from an average voltage network or a high voltage network at each terminal. At least one lik-spring mechanism (9 to 12) is arranged at a shaft (6) of the circuit breaker for holding contacts (1, 2) live in connected position and for pushing them apart to the extreme disconnected position when disconnected, while the shaft (6) is brought over the dead spot of its turning. For an initial release, the shaft (6) is at each phase provided with a lever arm (8), each lever arm at each phase being arranged to turn by means of a trip pin (19) of a striker (18) of a high voltage fuse (17) the shaft (6) of the circuit breaker and thus the moving contacts (1) of all phases from said connected position over the dead spot of turning said shaft.
-
公开(公告)号：EP0933639A2
公开(公告)日：1999-08-04
申请号：EP99660004.5
申请日：1999-01-14
申请人： ABB Transmit Oy
发明人： Viitasalo, Jukka
CPC分类号： G01R15/181 , H01F27/362 , H01F38/36
摘要： The invention relates to an insulating object comprising a lead-in primary conductor, an insulating body (2), a primary conductor (1) centrally lead through the body (2), and, arranged about the primary conductor, a Rogowski sensor constituting a current measuring element (3) encased in a screen structure (5) having at least one breakpoint. In accordance with the invention, the coil or coils of the Rogowski sensor are made to rest on an insulating casing (4, 4A, 48), and said screen structure (5) is arranged to encircle said insulating casing (4, 4A, 4B).
摘要翻译： 本发明涉及包括引入初级导体，绝缘体（2），居中引导穿过主体（2）的初级导体（1）以及围绕初级导体设置的罗氏线传感器的绝缘物体，罗科夫斯基传感器构成 包含在具有至少一个断点的屏幕结构（5）中的电流测量元件（3）。 根据本发明，罗戈夫斯基传感器的一个或多个线圈被放置在绝缘壳体（4,4A，48）上，并且所述屏幕结构（5）被布置成环绕所述绝缘壳体（4,4A，4B ）。
-
公开(公告)号：EP0807370A1
公开(公告)日：1997-11-19
申请号：EP96901361.0
申请日：1996-01-29
申请人： ABB Transmit Oy
发明人： KANGAS, Simo
摘要： The invention relates to an arrangement for attaching an electrical component (3) to a mounting base (1) and for connecting it galvanically to a terminal block (2) connected to the mounting base (1). According to the invention, the terminal block (2) comprises a first contact piece of a plug-in connector, and the component (3) comprises a second contact piece of the plug-in connector. In addition, the component and the mounting base comprise interlocking parts (8, 9) for attaching the component to the base, whereby when the component is locked to the base, the contact pieces of the plug-in connector provide a galvanic contact between the component (3) and the terminal block (2).
-
公开(公告)号：EP1032006A3
公开(公告)日：2001-11-21
申请号：EP00660029.0
申请日：2000-02-18
申请人： ABB Transmit Oy
发明人： Aronen, Alpo , Lintunen, Harri
CPC分类号： H01H9/282 , H01H9/22 , H01H31/003
摘要： The present invention relates to a control device (1) to be arranged to a three-position switching device including one axis wherein the switching motion is controlled from a common axis. The switching device is then controlled by turning the control shaft in the apparatus clockwise or counter-clockwise. The present invention provides a completely new solution that ensures a safe operation of the switching device and enables to carry out checking and servicing using simple means. The control device (1) of the invention comprises a housing (5) arranged at the switching device, and a control plate (7) arranged to move in the housing substantially along the surface of the apparatus receiving the switching device. Such a control plate comprises at least two crank openings (10) to be moved at the control shaft of the switching device. The use of the switching device can then be regulated by moving the crank openings or the necks (11, 12) on both sides thereof at the control shaft, thus preventing or allowing the manual controller controlling the switching device to be arranged to a tuning end (13) in the control shaft.
摘要翻译： 控制装置技术领域本发明涉及一种控制装置（1），该控制装置（1）被布置成包括一个轴的三位置切换装置，其中切换运动从公共轴被控制。 然后通过顺时针或逆时针转动装置中的控制轴来控制开关装置。 本发明提供了一种全新的解决方案，其确保开关装置的安全操作并且能够使用简单的手段来执行检查和维修。 本发明的控制装置（1）包括布置在开关装置处的壳体（5）和布置成基本沿着接收开关装置的设备的表面在壳体中移动的控制板（7）。 这种控制板包括至少两个待在开关装置的控制轴处移动的曲柄开口（10）。 然后可以通过在控制轴处移动其两侧上的曲柄开口或颈部（11,12）来调节开关装置的使用，从而防止或允许控制开关装置的手动控制器被布置到调谐端 （13）在控制轴中。
-
公开(公告)号：EP1020885A3
公开(公告)日：2001-05-02
申请号：EP00660005.0
申请日：2000-01-14
申请人： ABB Transmit Oy
发明人： Autio, Rauno
IPC分类号： H01H33/24
摘要： The invention relates to an electric field controller to be used with connections of energized parts in high and/or mid voltage apparatuses for controlling an electric field formed around the connections. The electric field controller comprises a curved body (1, 11) conducting electricity and is fixedly connected to the energized parts of the apparatus. The invention is based on the idea that by producing the electric field controller of an elastic material, whose electrical conductivity is preferably conductive or semi-conductive, an electric field controller is achieved which can be made into a preferable form as regards the control of the electric field and which is durable, light and flexible to install and easy to mount.
-
公开(公告)号：EP1082736A2
公开(公告)日：2001-03-14
申请号：EP99929359.0
申请日：1999-06-01
申请人： ABB Transmit Oy
发明人： BACKA, Johan , ENGMAN, Karl , HALDIN, Torvald , VIRTANEN, Esa
IPC分类号： H01F27/02
CPC分类号： H01F27/02
摘要： The invention relates to a transformer designed especially for underwater use, which transformer comprises a transformer core (1) and its winding located in a first container (2) filled with an insulating medium (3), the top surface of which container is provided with pressure-proof bushings (9, 10) for the connecting cables (12) of the transformer, a second container (4) filled with an insulating medium (5) and means (8) for equalising the pressure between the insulating medium (5) in the second container (4) and the transformer surroundings. According to the invention the second container (4) is arranged to completely encompass the first container (2) and the second container (4) is equipped with pressure-proof cable bushings (13) and associated connectors for external electrical connections of the transformer.
摘要翻译： 本发明涉及一种专为水下使用而设计的变压器，该变压器包括位于充满绝缘介质（3）的第一容器（2）中的变压器芯体（1）及其绕组，该绝缘介质（3）的顶部表面设有 用于变压器的连接电缆（12）的耐压衬套（9,10），填充有绝缘介质（5）的第二容器（4）和用于均衡绝缘介质（5）之间的压力的装置（8） 在第二容器（4）和变压器周围。 根据本发明，第二容器（4）布置成完全包围第一容器（2），并且第二容器（4）配备有用于变压器的外部电连接的耐压电缆套管（13）和相关联的连接器。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.009 秒)
