公开(公告)号：EP2988580B1

公开(公告)日：2017-10-11

申请号：EP14181873.2

申请日：2014-08-22

Applicant: ABB Schweiz AG

Inventor： Herland, Oddvar ,  Bolgiani, Fabio ,  Gradinger, Thomas ,  Wagner, Thomas ,  Cagienard, Raphael ,  Zuckerberger, Adrian

IPC: H05K7/20 ,  E21B41/00

CPC classification number: H05K7/20927 ,  H05K7/20236

公开(公告)号：EP2900046B1

公开(公告)日：2019-08-14

申请号：EP14152849.7

申请日：2014-01-28

Applicant: ABB Schweiz AG

Inventor： Gradinger, Thomas ,  Laneryd, Tor ,  Wagner, Thomas

IPC: H05K7/20

公开(公告)号：EP3934043A1

公开(公告)日：2022-01-05

申请号：EP20183053.6

申请日：2020-06-30

Applicant: ABB Schweiz AG

Inventor： Lendenmann, Heinz ,  Missing, Kim ,  Virtanen, Esa ,  Wagner, Thomas

IPC: H02H9/06

Abstract: An arrangement (1) for an overvoltage protection of a subsea electrical apparatus and a method for operating it. The arrangement (1) comprises a tank (3) submersible below a water surface level, an electrical apparatus accommodated in the tank (3), and a surge arrester arrangement (6) accommodated in the tank (3) and coupled to a power supply of the electrical apparatus in the tank (3) for providing the overvoltage protection of the electrical apparatus. The arrangement (1) further comprises a controllable grounding switch (7) for connecting the surge arrester arrangement (6) to a ground point (GP) in response to a control of the grounding switch (7) to a closed state and for disconnecting the surge arrester arrangement (6) from the ground point (GP) in response to a control of the grounding switch (7) to an open state.