Abstract: Provided are a gas insulated switchgear (GIS) internal video monitoring system and a GIS internal video monitoring method. The GIS internal video monitoring system includes a GIS video sensor installed on a GIS enclosure and configured to acquire an open/close state of a GIS internal conductor in a real time manner, an intelligent power source module, a video server, and a video monitoring background system configured to control the intelligent power source module to supply power to the video sensor, where the GIS video sensor is connected with the video monitoring background system through the video server.

Abstract: Provided are a gas insulated switchgear (GIS) internal video monitoring system and a GIS internal video monitoring method. The GIS internal video monitoring system includes a GIS video sensor installed on a GIS enclosure and configured to acquire an open/close state of a GIS internal conductor in a real time manner, an intelligent power source module, a video server, and a video monitoring background system configured to control the intelligent power source module to supply power to the video sensor, where the GIS video sensor is connected with the video monitoring background system through the video server.

Abstract: A clutch device of a gear transmission system of a circuit-breaker spring operating mechanism includes an energy storage shaft, a large gear, and a small gear. At an energy storage holding position of the large gear, a toothless and special teeth area is arranged corresponding to the small gear. A clutch cam is provided in a cavity in the large gear at the area and a backward extended part and may be reset by a resetting spring. In the area, the large gear includes a first special tooth, a second special tooth, and a space between the first and second special teeth. When energy storage is completed, the small gear pushes the first special tooth to push the large gear and energy storage shaft to the energy storage holding position that is away from a friction dead zone, and the small gear is automatically disengaged from the large gear.

Abstract: A clutch device of a gear transmission system of a circuit-breaker spring operating mechanism includes an energy storage shaft, a large gear, and a small gear. At an energy storage holding position of the large gear, a toothless and special teeth area is arranged corresponding to the small gear. A clutch cam is provided in a cavity in the large gear at the area and a backward extended part and may be reset by a resetting spring. In the area, the large gear includes a first special tooth, a second special tooth, and a space between the first and second special teeth. When energy storage is completed, the small gear pushes the first special tooth to push the large gear and energy storage shaft to the energy storage holding position that is away from a friction dead zone, and the small gear is automatically disengaged from the large gear.