会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 11. 发明申请
    • A SYSTEM FOR GROUND FAULT DETECTION IN A GENERATOR
    • 发电机接地故障检测系统
    • WO2010069739A1
    • 2010-06-24
    • PCT/EP2009/066027
    • 2009-11-30
    • ABB Research LtdROXENBORG, StefanTHORBURN, StefanBENGTSSON, TordGAJIC, ZoranJOHANSSON, Henrik
    • ROXENBORG, StefanTHORBURN, StefanBENGTSSON, TordGAJIC, ZoranJOHANSSON, Henrik
    • G01R27/18G01R31/02G01R31/06G01R31/34G05B9/03
    • G01R27/18G01R31/025G01R31/343G01R31/346H02H3/05H02H3/17H02H7/06
    • The present invention relates to a ground fault detection system for a generator (1 ) in a power system, wherein the generator comprises at least one electrical circuit (10, 10'). The ground fault detection system comprises a first signal injection unit (8) configured to inject a first test signal (t 1 ) at a first frequency (f 1 ) into the electrical circuit (10), a first measuring unit (7) configured to measure electrical quantities (U 1 , I 1 ) in the electrical circuit resulting from the first test signal, a first processing unit (9) configured to receive said measured electrical quantities resulting from the first test signal and calculate a first electrical parameter (Z 1 ) based on the measured electrical quantities in order to determine if there is a ground fault, a second signal injection unit (8') configured to inject a second test signal (t 2 ) at a second frequency (f 2 ) into the electrical circuit (10'), a second measuring unit (7') configured to measure electrical quantities (U 2 , I 2 ) in the electrical circuit resulting from the second test signal, and a second processing unit (9') configured to receive said measured electrical quantities resulting (U 2 , I 2 ) from the second test signal and calculate a second electrical parameter (Z 2 ) based on the measured electrical quantities in order to determine if there is a ground fault. The invention is characterized by the first processing unit further configured to send the first calculated electrical parameter to the second processing unit, the second processing unit configured, upon receiving the first calculated electrical parameter sent by the first processing unit, to compare the first calculated electrical parameter and the second calculated electrical parameter to determine if there is a ground fault, and if the deviation exceeds a selected criterion an alarm ( Alarm 1 ) may arise, equally, the second processing unit further configured to send the second calculated electrical parameter to the first processing unit, and the first processing unit configured, upon receiving the second calculated electrical parameter sent by the second processing unit, to compare the first calculated electrical parameter and the second calculated electrical parameter to determine whether there is a ground fault, and if the deviation exceeds a selected criterion an alarm ( Alarm 2 ) may arise.
    • 本发明涉及一种用于电力系统中的发电机(1)的接地故障检测系统,其中发电机包括至少一个电路(10,10')。 接地故障检测系统包括被配置为将第一频率(f1)的第一测试信号(t1)注入到电路(10)中的第一信号注入单元(8),被配置为测量电气 由第一测试信号产生的电路中的数量(U1,I1);第一处理单元(9),被配置为接收由第一测试信号产生的所测量的电量,并且基于测量的 电量以确定是否存在接地故障,第二信号注入单元(8')被配置为将第二频率(f2)的第二测试信号(t2)注入到电路(10')中,第二信号注入单元 测量单元(7'),其被配置为测量由所述第二测试信号产生的所述电路中的电量(U2,I2);以及第二处理单元(9'),被配置为接收从所述第二测试信号 第二测试信号,并且基于测量的电量计算第二电参数(Z2),以便确定是否存在接地故障。 本发明的特征在于,第一处理单元还被配置为将第一计算的电参数发送到第二处理单元,第二处理单元在接收到由第一处理单元发送的第一计算电参数时配置,以比较第一计算电 参数和第二计算电参数以确定是否存在接地故障,并且如果偏差超过所选择的标准,则可能出现报警(报警1),同样地,第二处理单元还被配置为将第二计算的电参数发送到 第一处理单元和第一处理单元,其被配置为在接收到由第二处理单元发送的第二计算电参数时,比较第一计算电参数和第二计算电参数以确定是否存在接地故障,并且如果 偏差超过所选标准报警(报警2) 可能会出现
    • 15. 发明申请
    • FRAME FOR A GYRATORY CRUSHER
    • 摇篮的框架
    • WO2013007440A1
    • 2013-01-17
    • PCT/EP2012/059962
    • 2012-05-29
    • SANDVIK INTELLECTUAL PROPERTY ABJOHANSSON, HenrikNILSSON, Martin
    • JOHANSSON, HenrikNILSSON, Martin
    • B02C2/04
    • B02C2/04B02C2/042
    • A gyratory crusher comprising a frame and a crushing head, which is arranged rotatably about a substantially vertical shaft, the frame comprising an upper frame portion, and a lower frame portion (42), which lower frame portion comprises a hub (43), which hub comprises a centralized arranged through hole (404) with a centre axis extending through said hole (404) and the hub, which hole is arranged to cooperate with the shaft being turnable arranged in said hole, which hub is connected by arms (44) to the lower frame portion (42) and comprises a drive ring pocket (64). The hub (43) further comprises a waist portion (402) with a thickness in a radial direction from the centre axis (80) being larger than the width of the drive ring pocket (64) of the hub.
    • 一种旋转式破碎机,包括框架和破碎头,所述框架和破碎头围绕基本垂直的轴可旋转地布置,所述框架包括上框架部分和下框架部分,所述下框架部分包括轮毂, 毂包括具有延伸穿过所述孔(404)和毂的中心轴线的集中布置的通孔(404),该孔被布置成与可转动地布置在所述孔中的轴配合,该毂通过臂(44)连接, 到下框架部分(42)并且包括驱动环口袋(64)。 轮毂(43)还包括从中心轴线(80)的径向方向上的厚度大于轮毂的驱动环口(64)的宽度的腰部(402)。
    • 20. 发明申请
    • DEMOUNTABLE FLOORING
    • 不可接受的地板
    • WO2010126446A1
    • 2010-11-04
    • PCT/SE2010/050475
    • 2010-04-29
    • MON.ZON DEVELOPMENT ABJOHANSSON, HenrikCARLBOM, Lars
    • JOHANSSON, HenrikCARLBOM, Lars
    • E04H3/24E04F15/024
    • E04H3/28E04G1/151E04H3/24
    • An edge profile (1) for connection of a decking member (2) to a supporting frame in a demountable flooring construction is provided. Said edge profile (1) has a top end, a bottom end and two side walls between the top end and the bottom end. A first projection unit (3) extends towards the bottom end of said edge profile (1) and is positioned at one of said side walls of said edge profile (1). Said edge profile (1) further comprises at least one second projection unit (4) extending towards the bottom end of said edge profile (1) and positioned at a distance from said first projection unit (3). The first and second projection units define a substantially U-shaped cavity (5) there between.
    • 提供了一种用于在可拆卸的地板结构中将甲板构件(2)连接到支撑框架的边缘轮廓(1)。 所述边缘轮廓(1)具有顶端,底端和在顶端和底端之间的两个侧壁。 第一投影单元(3)朝着所述边缘轮廓(1)的底端延伸并且被定位在所述边缘轮廓(1)的所述侧壁之一处。 所述边缘轮廓(1)还包括朝向所述边缘轮廓(1)的底端延伸并且定位在离所述第一投影单元(3)一定距离处的至少一个第二投影单元(4)。 第一和第二投影单元在其间限定基本上为U形的空腔(5)。