公开(公告)号：WO2011131581A1

公开(公告)日：2011-10-27

申请号：PCT/EP2011/056011

申请日：2011-04-15

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne

IPC: G01R27/16 ,  G01R35/02

CPC classification number: G01R35/02 ,  G01R27/16

Abstract: A method and an arrangement for determining values of impedance parameters related to a transformer configuration comprising three single pole voltage transformers (11, 12, 13) each having at least a primary winding (21, 22, 23), a secondary winding (41, 42, 43) and a tertiary winding (31, 32, 33), wherein the primary windings are connected to phases (PA, PB, PC) of a three phase electric system, wherein the arrangement comprises means for conducting an earth fault in the three phase electric system; means for measuring a primary voltage from the faulted phase; means for measuring secondary voltages from the secondary windings (41, 42, 43); and means for determining values of one or more impedance parameters related to the transformer configuration on the basis of the measured primary voltage, the measured secondary voltages and an equation relating the primary voltage to the secondary voltages and the one or more impedance parameters.

Abstract translation: 一种用于确定与变压器配置相关的阻抗参数的值的方法和装置，包括三个单极电压互感器（11,12,13），每个具有至少一个初级绕组（21,22,23），次级绕组（41， 42,33）和三次绕组（31,32,33），其中所述初级绕组连接到三相电气系统的相（PA，PB，PC），其中所述装置包括用于在所述三相绕组 三相电气系统; 用于从故障相位测量初级电压的装置; 用于测量来自次级绕组（41,42,43）的次级电压的装置; 以及用于基于所测量的初级电压，所测量的次级电压以及将所述一次电压与所述次级电压和所述一个或多个阻抗参数相关联的方程来确定与所述变压器配置相关的一个或多个阻抗参数的值的装置。

公开(公告)号：WO2007147941A1

公开(公告)日：2007-12-27

申请号：PCT/FI2007/050365

申请日：2007-06-18

Applicant: ABB TECHNOLOGY AG ,  ALTONEN, Janne ,  WAHLROOS, Ari

Inventor： ALTONEN, Janne ,  WAHLROOS, Ari

IPC: G01R31/02 ,  H02H3/40

CPC classification number: G01R27/16

Abstract: A method and system for determining estimate values for phase-to- earth admittances of a three-phase electric line of an electric power system, the system being arranged to monitor voltage and current values of the sys- tern, determine a sum of phase-to-earth admittances of the electric line (F1, F2, F3) after a phase-to-earth fault has occurred in the electric power system outside the electric line, determine an unsymmetrical part and a symmetrical part of the sum of phase-to-earth admittances of the electric line (F1, F2, F3), and determine phase-to-earth admittances of the three-phase electric line (F1, F2, F3) on the basis of the symmetrical part and unsymmetrical part of the sum of phase admittances of the electric line.

Abstract translation: 一种用于确定电力系统的三相电线的相邻导体估计值的方法和系统，该系统被布置为监视系统的电压和电流值，确定相位 - 在电线以外的电力系统发生相对地故障后，电线（F1，F2，F3）的接地导纳，确定电线的不对称部分和对称部分 - 电线（F1，F2，F3）的地面导纳，基于对称部分和总和的对称部分确定三相电线（F1，F2，F3）的相对地导纳 的电路相位导纳。

公开(公告)号：WO2011128184A1

公开(公告)日：2011-10-20

申请号：PCT/EP2011/054304

申请日：2011-03-22

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne

IPC: H02H3/28 ,  H02H3/38

CPC classification number: H02H3/286 ,  G01R31/086 ,  G01R31/3275 ,  H02H3/385 ,  H02H7/045

Abstract: A method and an apparatus for differential protection of a three phase electric connection of an electric system, the apparatus comprising: means (10A, 10B) for determining a value of an operate quantity, which operate quantity is based on a difference between current quantities at a first point and a second point of the electric connection (20), and means (10A, 10B) for detecting a fault in the electric connection (20) between the first point and the second point if the value of the operate quantity exceeds a value of a predetermined threshold quantity, wherein the operate quantity is based on a difference of residual currents at the first point and the second point, or a quantity indicative thereof, and a coefficient indicative of an angle between a residual voltage of the electric connection (20) and the difference of residual currents at the first point and the second point.

Abstract translation: 一种用于电气系统的三相电连接的差动保护的方法和装置，所述装置包括：用于确定操作量的值的装置（10A，10B），其操作量基于 电连接（20）的第一点和第二点;以及用于检测第一点和第二点之间的电连接（20）中的故障的装置（10A，10B），如果操作量的值超过 值，其中所述操作量基于所述第一点和所述第二点处的剩余电流的差或其指示的量，以及表示所述电连接的残留电压之间的角度的系数（ 20）和第一点和第二点处的残余电流差。

公开(公告)号：WO2010061055A1

公开(公告)日：2010-06-03

申请号：PCT/FI2009/050942

申请日：2009-11-20

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne

IPC: G01R31/08

CPC classification number: H02H3/165 ,  G01R31/025 ,  G01R31/086 ,  H02H5/105

Abstract: A method and an apparatus for detecting a phase-to-earth fault on a three-phase electric line (30) of an electric network, the apparatus comprising means for determining a neutral admittance, or a quantity indicative thereof, on the basis of a ratio between a difference between zero sequence currents on the three-phase electric line and a difference between zero sequence voltages in the electric network before an earth fault and during the earth fault; and means for comparing the determined neutral admittance, or the quantity indicative thereof, to a predetermined operation characteristic to detect a phase-to-earth fault on the three-phase electric line, wherein the predetermined operation characteristic, when presented on an admittance plane, defines a closed area such that the centre of the closed area is offset from the origin of the admittance plane towards a negative susceptance direction and/or towards a negative conductance direction.

Abstract translation: 一种用于检测电网的三相电线（30）上的相对地故障的方法和装置，所述装置包括用于基于电网确定中性导纳或指示量的装置 在接地故障之前和接地故障期间，三相电线上零序电流之间的差值与电网中零序电压之间的差值; 以及用于将确定的中性导纳或其指示的量与预定操作特性进行比较的装置，以检测三相电线上的相对地故障，其中当在导纳平面上呈现时，预定操作特性， 限定了封闭区域，使得闭合区域的中心从导纳平面的原点偏移到负的电纳方向和/或朝向负的电导方向。

公开(公告)号：WO2012110698A1

公开(公告)日：2012-08-23

申请号：PCT/FI2012/050138

申请日：2012-02-14

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne ,  HAKOLA, Tapio

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne ,  HAKOLA, Tapio

IPC: G01R31/02

CPC classification number: G01R31/025 ,  H02H3/40

Abstract: Method and apparatus for detecting an earth fault on a three-phase electric line of an electric network, the apparatus comprising means (70) for determining a value of a neutral admittance of the three-phase electric line (30) and means (70) for detecting the earth fault on the three-phase electric line (30) on the basis of the determined value of the neutral admittance and one or more predetermined parameter values, wherein the means (70) for detecting the fault on the three-phase electric line (30) comprise means for converting the determined value of the neutral admittance from a neutral admittance domain into a residual current domain, means for comparing in the residual current domain the converted value of the neutral admittance with the one or more predetermined parameter values and means for detecting the earth fault on the basis of the comparison.

Abstract translation: 一种用于检测电网三相电线路上的接地故障的方法和装置，该装置包括用于确定三相电线（30）的中性导纳值和装置（70）的装置（70） 用于基于所确定的中性导纳值和一个或多个预定参数值来检测三相电线（30）上的接地故障，其中用于检测三相电力线路上的故障的装置（70） 线路（30）包括用于将所确定的中性导纳值从中性导纳域转换为剩余电流域的装置，用于在剩余电流域中比较中性导纳的转换值与一个或多个预定参数值的装置，以及 在比较的基础上检测接地故障的手段。

公开(公告)号：WO2012000745A1

公开(公告)日：2012-01-05

申请号：PCT/EP2011/059442

申请日：2011-06-08

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne

IPC: G01R31/08 ,  H02H3/40

CPC classification number: G01R31/086 ,  G01R31/088

Abstract: Method and apparatus for determining a distance to a phase-to-earth fault on a three-phase electric line of an electric network, the apparatus comprising means (40) for determining,during a phase-to-earth fault (F)on the three-phase electric line (30), values of a residual voltage of the electric network and a zero-sequence current of the electric line at a measuring point (40) when a neutral to earth admittance of the electric network outside the electric line has a first value and when the neutral to earth admittance of the electric network outside the electric line has a second value different from the first value; and means (40) for determining the distance to the phase-to-earth fault (F) from the measuring point (40) on the basis of the determined residual voltage and zero-sequence current values.

Abstract translation: 用于确定到电网三相电线上的相对地故障的距离的方法和装置，所述装置包括用于在相位对地故障（F） 三相电力线路（30），当电力线路的电气线路的中性线与地电线之间的电气线路的中性地线导纳时，电网的剩余电压值和测量点（40）处的电线的零序电流值 第一值，并且当所述电线以外的所述电网的中性线接地导纳的第二值与所述第一值不同时; 以及用于基于所确定的剩余电压和零序电流值从所述测量点（40）确定到所述相对地故障（F）的距离的装置（40）。

公开(公告)号：WO2011128333A1

公开(公告)日：2011-10-20

申请号：PCT/EP2011/055708

申请日：2011-04-12

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne ,  MÄHÖNEN, Pentti

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne ,  MÄHÖNEN, Pentti

IPC: G01R15/18

CPC classification number: G01R15/183 ,  G01R19/0084

Abstract: A method and an arrangement for voltage measurement with a transformer configuration comprising three single pole voltage transformers (11, 12, 13) having tertiary windings open-delta connected with each other, the arrangement comprising means arranged to apply a correction to measured secondary voltages on the basis of one or more parameters of the voltage transformers (11, 12, 13) and/or one or more quantities in a known relation to one or more parameters of the voltage transformers, one or more parameters of a circuit connected to the secondary windings (41, 42, 43) and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the secondary windings, and one or more parameters of a circuit connected to the tertiary windings (31, 32, 33) and/or one or more quantities in a known relation to one or more parameters of the circuit connected to the tertiary windings.

Abstract translation: 一种用于具有变压器配置的电压测量的方法和装置，包括具有彼此连接的三级绕组开放三角形的三极单相电压互感器（11,12,13），所述装置包括用于对所测量的二次电压施加校正的装置 电压互感器（11,12,13）的一个或多个参数的基础和/或与电压互感器的一个或多个参数有已知关系的一个或多个量，连接到次级电路的电路的一个或多个参数 绕组（41,42,43）和/或与已连接到次级绕组的电路的一个或多个参数已知关系的一个或多个量以及连接到第三绕组（31,32）的电路的一个或多个参数 ，33）和/或与已连接到第三绕组的电路的一个或多个参数已知关系的一个或多个量。

公开(公告)号：WO2008034936A1

公开(公告)日：2008-03-27

申请号：PCT/FI2006/050401

申请日：2006-09-19

Applicant: ABB TECHNOLOGY AG ,  WAHLROOS, Ari ,  ALTONEN, Janne

Inventor： WAHLROOS, Ari ,  ALTONEN, Janne

IPC: H02H3/38

CPC classification number: H02H3/402

Abstract: A method and a system for determining a circular characteristic for distance protection of a three-phase electric line (30), the system comprising means for detecting a fault (F) on the electric line (30), means for identifying a faulted phase or phases of the electric line, means for determining, at a measuring point, a first fault loop impedance by using voltage(s) of the faulted phase(s), a second fault loop impedance by using a polarization voltage and a third fault loop impedance by using predetermined line parameters, and means for determining a radius and midpoint of the circular characteristic.

Abstract translation: 一种用于确定三相电线（30）的距离保护的圆形特性的方法和系统，所述系统包括用于检测所述电线（30）上的故障（F）的装置， ，用于识别所述电线的故障相或相的装置，用于在测量点处通过使用所述故障相的（多个）电压来确定第一故障回路阻抗的装置，通过使用第二故障回路阻抗来确定第二故障回路阻抗的装置， 极化电压和第三故障回路阻抗，以及用于确定圆形特征的半径和中点的装置。