GAS INSULATED SWITCHGEAR

• Main Author: INOUE NAOAKI
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2022
• Subjects: BASIC ELECTRIC ELEMENTS; BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; GENERATION; RELAYS; SELECTORS

To provide a highly reliable hermetic drive portion in a gas insulated switchgear equipped with a switch that operates the opening and closing of a main circuit portion by rotational drive.SOLUTION: A gas insulated switchgear includes a switch: including a main circuit unit housed in an airtight container and having a first drive shaft; and an operation mechanism portion arranged outside the sealed container, having a second drive shaft, and operating opening and closing of the main circuit portion by rotational drive. The first drive shaft and the second drive shaft are made of a non-magnetic material, the first drive shaft and the second drive shaft are arranged coaxially and face each other through a non-magnetic material portion of the sealed container, and permanent magnets are provided on the surface sides of the first drive shaft and the second drive shaft facing each other.SELECTED DRAWING: Figure 2 【課題】主回路部の開閉を回転駆動により操作する開閉器を搭載したガス絶縁開閉装置において、信頼性の高い気密駆動部を提供することを目的とする。【解決手段】密閉容器に収納され第一の駆動軸を有する主回路部と、密閉容器の外に配置されるとともに第二の駆動軸を有し主回路部の開閉を回転駆動により操作する操作機構部と、を備えた開閉器を搭載したガス絶縁開閉装置であって、第一の駆動軸及び第二の駆動軸は非磁性材料からなり、第一の駆動軸と第二の駆動軸とは密閉容器の非磁性体部を介して対向するとともに同軸に配置され、第一の駆動軸及び第二の駆動軸の互いに対向する面側にそれぞれ永久磁石が設けられている。【選択図】図２