Protection adapter and system

A protection adapter for an overvoltage protection of an electrical operating device in a high-voltage line, the protection adapter comprising:

• a first adapter interface for electrically conductively coupling the protection adapter to an open-air interface of the high-voltage line;
• a second adapter interface for electrically conductively coupling the protection adapter to an operating-device interface of the electrical operating device;
• a connecting line for electrically conductively coupling said first adapter interface and said second adapter interface;
• and
• an electrically insulating insulation sheath surrounding at least said connecting line;
• said insulation sheath comprising a first insulation medium, at least in portions thereof, and a second insulation medium, at least in portions thereof, said first insulation medium being selected from the group consisting of a gas and a liquid, and said second insulation medium being a solid material;
• and
• the protection adapter having a surge impedance configured for reducing electrical surges from the high-voltage line.

A protection adapter for an overvoltage protection of an electrical operating device in a high-voltage line, the protection adapter comprising:

• a first adapter interface for electrically conductively coupling the protection adapter to an open-air interface of the high-voltage line;
• a second adapter interface for electrically conductively coupling the protection adapter to an operating-device interface of the electrical operating device;
• a connecting line for electrically conductively coupling said first adapter interface and said second adapter interface;
• and
• an electrically insulating insulation sheath surrounding at least said connecting line;
• and
• the protection adapter having a surge impedance configured for reducing electrical surges from the high-voltage line;
• and
• wherein the protection adapter has a line cross section with an increasing form from said first adapter interface or said second adapter interface to said connecting line and/or wherein said line cross section has an increasing or decreasing form over a main extent of said connecting line.