Gas-insulated electric power apparatus

A gas-insulated electric apparatus comprising:

• a vertically-arranged gas insulation main tank which incorporates a vertically-arranged gas insulation breaker therein;
• a first gas insulation branch pipe which is connected with one side of an upper portion of the gas insulation main tank while making a substantially right angle with the extending direction of the gas insulation main tank and pulls out a feeder from a movable side of the gas insulation breaker;
• a second gas insulation branch pipe which is connected with one side of a lower portion of the gas insulation main tank while making a substantially right angle with the extending direction of the gas insulation main tank and connects a fixed side of the gas insulation breaker to a gas insulation bus line;
• a breaker manipulator which is arranged on an upper side in the extending direction of the gas insulation main tank;
• a feeder-side current transformer which is incorporated in the first gas insulation branch pipe;
• a voltage transformer which is arranged on the first gas insulation branch pipe in a state that the voltage transformer is positioned above the first gas insulation branch pipe and uses the feeder as a primary conductor;
• and
• an arrestor which is arranged on the first gas insulation branch pipe in a state that the arrestor is positioned above the first gas insulation branch pipe and is connected with the feeder,
• wherein the second gas insulation branch pipe and the gas insulation bus line are arranged inside of a space surrounded by the gas insulation main tank and the first gas insulation branch pipe;
• and
• the height of the gas-insulated electric apparatus at the upper end of each of the breaker manipulator, the voltage transformer and the arrestor is substantially the same.