METHOD AND SYSTEM FOR TRANSFORMER DISSOLVED GAS HARMONIC REGRESSION ANALYSIS

    公开(公告)号:EP2181320B1

    公开(公告)日:2018-12-12

    申请号:EP08828461.7

    申请日:2008-08-01

    IPC分类号: G01N21/00

    摘要: A transformer (26) is monitored by a dissolved gas monitoring device (28). A method (36) in the form of executable code instructs a processor (34) to analyze a condition of the transformer (26). The method includes receiving (90), from the monitoring device (28), data elements (60) in the form of values (70) of dissolved gases (72) associated with operation of transformer (26) during a period of time. Periodic characteristics responsive to the operation of the transformer (26) are identified (92) from the data elements (60). The periodic characteristics may include a daily, semi-annual, and/or annual fluctuation of gas generation in response to transformer loading. A gas generation rate trend (112) is distinguished from the periodic characteristics, the condition of the transformer (26) is determined and its future condition may be predicted in response to the trend (112). The condition is presented to a user (58).

    METHOD AND SYSTEM FOR ESTIMATING TRANSFORMER REMAINING LIFE
    2.
    发明公开
    METHOD AND SYSTEM FOR ESTIMATING TRANSFORMER REMAINING LIFE 有权
    方法和系统变压器的确定剩余寿命

    公开(公告)号:EP2735011A1

    公开(公告)日:2014-05-28

    申请号:EP12814599.2

    申请日:2012-07-16

    IPC分类号: H01H31/12

    CPC分类号: G05B23/0283 H01F27/402

    摘要: A transformer is monitored by a dissolved gas monitoring device. A method in the form of executable code instructs a processor to estimate a remaining life of the transformer. The method includes receiving, from the monitoring device data elements representing a current value of dissolved gases in the transformer that correlate with degradation of insulating material in the transformer. Adjustment values are determined for the gases in response to isolated events occurring at the transformer. The current value and the adjustment values are combined to obtain a total value, and a degree of polymerization value is estimated using the total value. The value is converted into a measure of remaining life of the transformer, and the measure of remaining life is presented to a user.

    METHOD AND SYSTEM FOR TRANSFORMER DISSOLVED GAS HARMONIC REGRESSION ANALYSIS
    4.
    发明公开
    METHOD AND SYSTEM FOR TRANSFORMER DISSOLVED GAS HARMONIC REGRESSION ANALYSIS 审中-公开
    方法和系统谐波回归分析由变压器溶解气体

    公开(公告)号:EP2181320A1

    公开(公告)日:2010-05-05

    申请号:EP08828461.7

    申请日:2008-08-01

    IPC分类号: G01N21/00

    摘要: A transformer (26) is monitored by a dissolved gas monitoring device (28). A method (36) in the form of executable code instructs a processor (34) to analyze a condition of the transformer (26). The method includes receiving (90), from the monitoring device (28), data elements (60) in the form of values (70) of dissolved gases (72) associated with operation of transformer (26) during a period of time. Periodic characteristics responsive to the operation of the transformer (26) are identified (92) from the data elements (60). The periodic characteristics may include a daily (136), semi-annual (138), and/or annual (140) fluctuation of gas generation in response to transformer loading. A gas generation rate trend (112) is distinguished from the periodic characteristics, the condition of the transformer (26) is determined and its future condition may be predicted in response to the trend (112). The condition is presented to a user (58).

    METHOD FOR EXCEPTION-BASED NOTIFICATION OF THE CONDITION OF AN APPARATUS

    公开(公告)号:EP2047395B1

    公开(公告)日:2018-09-05

    申请号:EP07812620.8

    申请日:2007-07-04

    CPC分类号: H02H5/08 H02H7/04

    摘要: A system (30) includes an analysis engine (34) and a notification engine (38) for selective notification of a condition (72) of an apparatus (26) monitored by a monitoring device (28). A method executed by the system (30) receives (116) data elements (58) from the monitoring device (28), processes (118) the data elements (58) to detect the condition (72) of the apparatus (26), and determines that the condition (72) defines an exception (74) to a normal condition (70) of the apparatus (26). A first notice (60) of the condition (72) is conveyed (146) to a responsible party (59) at a first instance of determination of the exception (74), and conveyance of a second notice (60) is prevented (140) at a second, subsequent, instance of determination of the exception (74). In addition, communication of the normal condition (70) of the apparatus (26) is prevented.

    METHOD FOR EXCEPTION-BASED NOTIFICATION OF THE CONDITION OF AN APPARATUS
    6.
    发明公开
    METHOD FOR EXCEPTION-BASED NOTIFICATION OF THE CONDITION OF AN APPARATUS 审中-公开
    薇薇兰ZURAUSNAHMEBASIERTEN MELDUNG DES ZUSTANDES EINESGERÄTS

    公开(公告)号:EP2047395A2

    公开(公告)日:2009-04-15

    申请号:EP07812620.8

    申请日:2007-07-04

    CPC分类号: H02H5/08 H02H7/04

    摘要: A system (30) includes an analysis engine (34) and a notification engine (38) for selective notification of a condition (72) of an apparatus (26) monitored by a monitoring device (28). A method executed by the system (30) receives (116) data elements (58) from the monitoring device (28), processes (118) the data elements (58) to detect the condition (72) of the apparatus (26), and determines that the condition (72) defines an exception (74) to a normal condition (70) of the apparatus (26). A first notice (60) of the condition (72) is conveyed (146) to a responsible party (59) at a first instance of determination of the exception (74), and conveyance of a second notice (60) is prevented (140) at a second, subsequent, instance of determination of the exception (74). In addition, communication of the normal condition (70) of the apparatus (26) is prevented.

    摘要翻译: 系统(30)包括分析引擎(34)和通知引擎(38),用于选择性地通知由监视设备(28)监控的设备(26)的状态(72)。 由系统(30)执行的方法从监视装置(28)接收(116)数据元素(58),处理(118)数据元素(58)以检测装置(26)的条件(72) 并且确定条件(72)将装置(26)的正常状态(70)定义为异常(74)。 条件(72)的第一通知(60)在第一次确定异常(74)的情况下被传达(146)到责任方(59),并且防止第二通知(60)的传送(140 )在第二个后续的例外确定例子(74)。 此外,防止了装置(26)的正常状态(70)的通信。