公开(公告)号：EP2816728B1

公开(公告)日：2020-08-05

申请号：EP13172938.6

申请日：2013-06-20

Applicant: ABB Schweiz AG

Inventor： Lobsiger, Yanick ,  Kolar, Johann ,  Laitinen, Matti

IPC: H03K17/16

公开(公告)号：EP3041137B1

公开(公告)日：2020-02-12

申请号：EP14200391.2

申请日：2014-12-29

Applicant: ABB Schweiz AG

Inventor： Lizama, Ignacio ,  Bernet, Steffen ,  Laitinen, Matti

IPC: H03K17/0414 ,  H03K17/28 ,  H03K17/0812 ,  H02M1/08

公开(公告)号：EP2884661B1

公开(公告)日：2019-02-06

申请号：EP13196677.2

申请日：2013-12-11

Applicant: ABB Schweiz AG

Inventor： Lizama, Ignacio ,  Alvarez, Rodrigo ,  Bernet, Steffen ,  Laitinen, Matti

IPC: H03K17/082 ,  H03K17/12 ,  H03K17/567

公开(公告)号：EP4545941A1

公开(公告)日：2025-04-30

申请号：EP23205892.5

申请日：2023-10-25

Applicant: ABB Schweiz AG

Inventor： Wawrzola, Grzegorz Piotr ,  Wang, Daniel-Bo ,  Laitinen, Matti ,  Tiihonen, Vesa

IPC: G01N17/00 ,  G01N17/02 ,  G01N27/26

Abstract: The invention concerns a method of detecting atmospheric corrosion for electrical devices. It comprises monitoring of an electrical state of plurality of metal structures operating as sensing elements embedded in a corrosion sensor. All metal structures have equal dimensions and are made of the same material with the same chemical structure and are placed on non-conductive substrate and located in electrical device. Each metal structure works as single sensing element and its electrical state is monitored. What is more, monitoring of the electrical state of metal structures comprises an assessment of how many of the metal structures have been damaged due to corrosion. The progress of corrosion is assessed by comparison of number of damaged metal structures to threshold values.

公开(公告)号：EP4545940A1

公开(公告)日：2025-04-30

申请号：EP23205879.2

申请日：2023-10-25

Applicant: ABB Schweiz AG

Inventor： Wawrzola, Grzegorz Piotr ,  Pypec, Stefan ,  Laitinen, Matti

IPC: G01N17/00 ,  G01N17/02 ,  G01N27/26

Abstract: An atmospheric corrosion sensor (1) for detecting corrosion of electrical equipment comprising at least two atmospheric corrosion sensing structures (Rs1, Rs2, Rs3) placed on at least one insulated corrosion sensor substrate wherein said corrosion sensing structures (Rs1, Rs2, Rs3) are accessible to corrosion atmosphere. Said atmospheric corrosion sensing structures (Rs1, Rs2, Rs3) have the same spatial dimensions and each of said atmospheric corrosion sensing structures (Rs1, Rs2, Rs3) comprises different composition of corrodible material.