A small air switch protection device

Abstract

The invention discloses a small air switch protection device. The protection device is a C-shaped bending plate and comprises side plates which are symmetric and are positioned on two sides of the protection device, and a panel which is positioned in the middle of the protection device, wherein the side plates are clamped at the upper and lower ends of a small air switch; the panel is parallel to the outer surface of the small air switch; the two side plates are respectively inclined inwards and respectively provided with a first bending line, a second bending line and a third bending line; each side plate can be bent along a random bending line, and a part of each side plate between a bending part and an opening end is an end plate; the end plates are respectively parallel to the upper and lower ends of the small air switch; the distance between the two end plates is equal to the distance between the upper and lower ends of the small air switch; and the distance between the panel and the opening end of each side plate is greater than the thickness of the small air switch. The small air switch protection device provided by the invention is simple in structure and low in cost; errors in collision and pulling can be effectively prevented by field application; the safety of operation is improved; and by arranging a mark outside the protection device, a warning effect is achieved in daily operation.

Description

technical field [0001] The invention relates to a switch protection device, in particular to a small air switch protection device. Background technique [0002] In the daily work of relay protection, the secondary air switch is an important device for breaking current and voltage, and at the same time involves the correct action of protection, and its safe operation needs to be 100% guaranteed. However, in actual production work, the following shortcomings affect the safe operation of the air switch. [0003] (1) There are multiple small air switches in a protective cabinet or screen. According to the safety measures of the work ticket, the signs of "no closing, people working" or "no opening" are hung on the corresponding small switches in this protective cabinet or screen. When the card is used, it cannot clearly indicate the operable situation of the specific air switch, which is easy to confuse. [0004] (2) Due to the large number of small switches, the switches in so...

AI Technical Summary

Problems solved by technology

In actual production work, the following shortcomings affect the safe operation of the air switch

[0003] (1) There are multiple small air switches in a protective cabinet or screen. According to the safety measures of the work ticket, the corresponding small switches in the protective cabinet or screen are hung with signs of "no closing, someone is working" or "no opening" When the card is used, it cannot clearly indicate the situation where the specific air switch can be operated, which is easy to confuse

[0004] (2) Due to the large number of small switches, some switches in the switch cabinet are installed up and down, and the small switch distance may cause the small switch on the lower layer to be driven by mistake when the small switch on the upper layer is closed.

Images