Novel double-grounding high-voltage disconnector

Abstract

A novel double-grounding high-voltage disconnector comprises a high-voltage disconnector operation mechanism box, operation connecting rods and a double-grounding disconnector body. The high-voltage disconnector operation mechanism box is provided with three output shafts which comprise the main knife output shaft, the left grounding knife output shaft and the right grounding knife output shaft, the main knife output shaft is connected with a first connecting shaft of the high-voltage disconnector body through the first operation connecting rod, and the first connecting shaft is connected with a main knife. The left grounding knife output shaft is connected with a second connecting shaft of the high-disconnector body through the second operation connecting rod, and the second connecting shaft is connected with a left grounding knife. The right grounding knife output shaft is connected with a third connecting shaft of the high-voltage disconnector body through the third operation connecting rod, and the third connecting shaft is connected with a right grounding knife. The novel double-grounding high-voltage disconnector is high in working reliability, easy to operate, low in investment cost and convenient to install and maintain on site.

Description

technical field [0001] The invention relates to a novel double-ground high-voltage isolating switch, which is widely used in open-type (AIS) intelligent substations. Background technique [0002] At present, the new high-voltage isolating switches at home and abroad all use traditional operating mechanism boxes, that is, the main knife and grounding knife are respectively equipped with their own traditional operating mechanism boxes. In the traditional operating mechanism box, only one output shaft is installed on the top of the box, and an operating motor, a reducer and an electrical control and protection system are installed in the box. For the new high-voltage isolating switch, a total of 3 traditional operating mechanism boxes need to be configured. [0003] When the double-ground high-voltage isolating switch is controlled by a traditional operating mechanism box, the main knife and the grounding knife need to be installed with independent operating mechanism boxes fo...

AI Technical Summary

Problems solved by technology

These mechanical interlocking and electrical interlocking devices with complex functions make the installation, commissioning, maintenance and repair of high-voltage isolating switches take a long time, the operation is inconvenient, and there may be misoperations caused by human factors, and the traditional operating mechanism box has no communication interface. With network communication and network operation functions, it cannot meet the operation and maintenance requirements of smart substations

Images