公开(公告)号：US08838402B2

公开(公告)日：2014-09-16

申请号：US13647548

申请日：2012-10-09

Applicant: ABB Technology AG

Inventor： Ari Wahlroos ,  Janne Altonen ,  Pentti Mähönen

IPC: G01R19/00 ,  G06F11/30

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 having tertiary windings open-delta connected with each other. The arrangement is configured to apply a correction to measured secondary voltages on the basis of one or more parameters of the voltage transformers 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 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 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，包括具有相互连接的三级绕组开放三角形的三个单极电压互感器。 该布置被配置为基于电压互感器的一个或多个参数和/或与电压互感器的一个或多个参数已知关系的一个或多个量来对所测量的次级电压进行校正，一个或多个参数 连接到次级绕组的电路和/或以已知关系连接到次级绕组的电路的一个或多个参数的一个或多个量以及连接到第三绕组的电路的一个或多个参数和/或一个或多个 与已连接到三级绕组的电路的一个或多个参数有已知关系的更多量。