CPC H01F 27/343 (2013.01) [H01F 27/34 (2013.01); H02B 11/26 (2013.01); H02H 9/005 (2013.01); H02H 9/08 (2013.01)] | 17 Claims |
1. An arrangement for an overvoltage protection of a subsea electrical apparatus, the arrangement comprising:
a tank submersible below a water surface level,
an electrical apparatus accommodated in the tank,
a surge arrester arrangement accommodated in the tank and coupled to a power supply of the electrical apparatus in the tank for providing the overvoltage protection of the electrical apparatus, and
a controllable grounding switch for connecting the surge arrester arrangement to a ground point in response to a control of the grounding switch to a closed state and for disconnecting the surge arrester arrangement from the ground point in response to a control of the grounding switch to an open state,
wherein the arrangement comprises a control unit external to the tank and configured to control the state of the grounding switch remotely.
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