Gas-insulated apparatus

A gas-insulated apparatus comprising:

• an airtight container in which insulating gas is enclosed;
• a heat generator disposed inside the airtight container and generates heat when principal current flows;
• and
• an electrical connector:
• disposed inside the airtight container;
• and
• is a portion of electrical connection between a rod-shaped conductor and a cylindrical conductor, wherein
• the rod-shaped conductor:
• forms a conduction path of the principal current;
• and
• inserted into the cylindrical conductor to form the conduction path of the principal current, wherein
• the electrical connector includes a plurality of ring-shaped conductors placed between the rod-shaped conductor and the cylindrical conductor,
• the plurality of ring-shaped conductors include:
• at least one first ring-shaped conductors and at least one second ring-shaped conductors, the second ring-shaped conductors being each disposed at a position more distant from the heat generator than the first ring-shaped conductors, and
• an insulating layer is formed on at least one of:
• a part of the cylindrical conductor being in contact with the first ring-shaped conductors;
• and
• a part of the rod-shaped conductor being in contact with the first ring-shaped conductors.

A gas-insulated apparatus comprising:

• an airtight container in which insulating gas is enclosed;
• a heat generator disposed inside the airtight container and generates heat when principal current flows;
• and
• an electrical connector:
• disposed inside the airtight container;
• and
• is a portion of electrical connection between a rod-shaped conductor and a cylindrical conductor, wherein
• the rod-shaped conductor:
• forms a conduction path of the principal current;
• and
• inserted into the cylindrical conductor to form the conduction path of the principal current, wherein
• the electrical connector includes a plurality of ring-shaped conductors placed between the rod-shaped conductor and the cylindrical conductor,
• the plurality of ring-shaped conductors include:
• at least one first ring-shaped conductors and at least one second ring-shaped conductors, the second ring-shaped conductors being each disposed at a position more distant from the heat generator than the first ring-shaped conductors, and
• an insulating layer is provided on a part of an inner peripheral surface of the cylindrical conductor, the part of the inner peripheral surface being located closer to the heat generator,
• the first ring-shaped conductors are disposed between the insulating layer and the rod-shaped conductor, and
• the second ring-shaped conductors are in contact with the rod-shaped conductor without via the insulating layer.

A gas-insulated apparatus comprising:

• an airtight container in which insulating gas is enclosed;
• a heat generator disposed inside the airtight container and generates heat when principal current flows;
• and
• an electrical connector:
• disposed inside the airtight container;
• and
• is a portion of electrical connection between a rod-shaped conductor and a cylindrical conductor, wherein
• the rod-shaped conductor:
• forms a conduction path of the principal current;
• and
• inserted into the cylindrical conductor to form the conduction path of the principal current, wherein
• the electrical connector includes a plurality of ring-shaped conductors placed between the rod-shaped conductor and the cylindrical conductor,
• the plurality of ring-shaped conductors include:
• at least one first ring-shaped conductors and at least one second ring-shaped conductors, the second ring-shaped conductors being each disposed at a position more distant from the heat generator than the first ring-shaped conductors, and
• the cylindrical conductor includes:
• a first cylindrical conductor;
• and
• a second cylindrical conductor having a cylindrical shape, the second cylindrical conductor being narrower and shorter than the first cylindrical conductor, and being placed in the first cylindrical conductor in such a way as to be closer to the heat generator, and
• an insulating layer is provided between the first cylindrical conductor and the second cylindrical conductor, wherein,
• the first ring-shaped conductors are disposed between the rod-shaped conductor and the second cylindrical conductor, and
• the second ring-shaped conductors are disposed between the rod-shaped conductor and the first cylindrical conductor.