公开(公告)号：WO2013068010A1

公开(公告)日：2013-05-16

申请号：PCT/DK2012/000116

申请日：2012-10-23

Applicant: DANFOSS A/S

Inventor： HARVEST, Nils-Ole

IPC: G01R27/20 ,  G01R31/02

CPC classification number: G01R31/025 ,  G01R27/18 ,  G01R27/20 ,  G01R27/205

Abstract: A mechanism is described for determining whether or not a ground connection is properly earthed by determining whether or not a potential difference exists between a voltage measuring point and a ground connection. A first capacitor is connected between the ground connection and a first power line and a first duplicating capacitor (having the same capacitance as the first capacitor) is connected between the voltage measuring point and the first power line. If the determining step determines that the potential difference does not exist, then it is determined that the ground connection is not properly earthed.

Abstract translation: 描述了通过确定电压测量点和接地连接之间是否存在电位差来确定接地连接是否正确接地的机构。 第一电容器连接在电压测量点和第一电力线之间的第一电力线和第一复制电容器（具有与第一电容器相同的电容）之间。 如果确定步骤确定电位差不存在，则确定接地连接没有正确接地。

公开(公告)号：EP2786160B1

公开(公告)日：2016-05-25

申请号：EP12781026.5

申请日：2012-10-23

Applicant: Danfoss A/S

Inventor： HARVEST, Nils-Ole

IPC: G01R27/20 ,  G01R31/02

CPC classification number: G01R31/025 ,  G01R27/18 ,  G01R27/20 ,  G01R27/205

公开(公告)号：EP2786160A1

公开(公告)日：2014-10-08

申请号：EP12781026.5

申请日：2012-10-23

Applicant: Danfoss A/S

Inventor： HARVEST, Nils-Ole

IPC: G01R27/20 ,  G01R31/02

CPC classification number: G01R31/025 ,  G01R27/18 ,  G01R27/20 ,  G01R27/205

Abstract: A mechanism is described for determining whether or not a ground connection is properly earthed by determining whether or not a potential difference exists between a voltage measuring point and a ground connection. A first capacitor is connected between the ground connection and a first power line and a first duplicating capacitor (having the same capacitance as the first capacitor) is connected between the voltage measuring point and the first power line. If the determining step determines that the potential difference does not exist, then it is determined that the ground connection is not properly earthed.