Electrical misoperation prevention device

Abstract

The invention discloses an electrical malfunction prevention device, and relates to the field of high-voltage power transmission and transformation equipment. The electrical malfunction prevention device comprises a limitation block, a first buffer mechanism and a second buffer mechanism, wherein a first opening hole and a second opening hole are formed in the limitation block, a first travel switch, a second travel switch, a first reverse protection switch and a second reverse protection switch are arranged on the limitation block, the first buffer mechanism comprises a first buffer sleeve, afirst touch rod, a first press plate, a first elastic piece, a second elastic piece and a second press plate, one end of the second elastic piece props against the first buffer sleeve, the other endof the second elastic piece props against an upper end of the first touch rod, the second press plate is arranged at a lower end of the first touch rod, the second press plate can press the first travel switch so that on / off of the first travel switch is controlled, the first travel switch and the first reverse protection switch are connected in series, and the second travel switch and the secondreverse protection switch are connected in series. By the electrical malfunction prevention device, the overshoot operation of an operating mechanism during breaking or closing in place can be effectively prevented, meanwhile, the electrical malfunction prevention device also has an electrical malfunction prevention function.

Description

technical field [0001] The invention relates to the field of high-voltage power transmission and transformation equipment, in particular to an electrical misoperation prevention device. Background technique [0002] In the high-voltage power transmission and transformation system, the high-voltage switch is one of the important equipment in the system. It has multiple functions of closing and cutting off the high-voltage line and protecting the safe operation of the line. The operating mechanism is the power source of the high-voltage switch and the heart of the high-voltage switch. The operating mechanism is used to control the opening and closing of the high-voltage switch. Reliable stop after the action is in place is the basic requirement for the operating mechanism. However, the current high-voltage switch and other devices cannot effectively and reliably stop the operating mechanism. The operating mechanism has a certain inertia. After the high-voltage switch is closed...

AI Technical Summary

Problems solved by technology

However, the current high-voltage switch and other devices cannot effectively and reliably stop the operating mechanism. The operating mechanism has a certain inertia. After the high-voltage switch is closed or disconnected, it cannot be effectively stopped without impact. The switch causes a certain impact, which may cause damage to the high-voltage switch

[0003] Secondly, when controlling the rotation of the operating mechanism, there will be a wrong reverse rotation due to electrical reasons, resulting in the inability to correctly close or cut off the high-voltage switch, and it will also cause non-demanding damage to the other side of the high-voltage switch. Closing or cutting, on the one hand, it will not meet the correct closing or cutting requirements, and on the other hand, it will cause misoperation on the other side of the high-voltage switch

This will bring a very large safety hazard to the entire line, and cannot fully guarantee the safety of equipment operation.

Images