Explosion-proof switch control loop disconnection monitoring method

Abstract

The invention aims to provide an explosion-proof switch control loop disconnection monitoring method. An explosion-proof switch main switch, a control loop module and a single chip microcomputer system are included, and the explosion-proof switch main switch and the control loop module are connected through an intermediate relay and a vacuum contactor to form an explosion-proof structure; the control loop module is connected with the input end of the broken line state acquisition module, the output end of the broken line state acquisition module is connected with the input end of the single-chip microcomputer system, and the switch information acquisition module is arranged between the explosion-proof switch main switch and the single-chip microcomputer system, so that effective and timely monitoring and feedback processing can be carried out on fault reasons of the explosion-proof switch, the reasons can be found in the shortest time, production can be recovered, production loss can be effectively avoided, and production efficiency can be improved.

Description

technical field [0001] The invention relates to the field of production test monitoring of an explosion-proof switch, and mainly relates to a method for monitoring disconnection of a control circuit of an explosion-proof switch. Background technique [0002] With the rapid progress and development of the power industry, especially for the existing dust processing and mineral processing plants, a large number of explosion-proof switches are required to protect the power supply system and switchgear, and the explosion-proof switches used at this stage Basically, the control switch action is controlled by the control circuit such as the switch body and the leakage protection circuit to realize tripping, locking and other actions, and to realize power-on safety. Therefore, it is difficult to monitor the on-off state of the control circuit in actual use, especially in the control circuit. When a fault occurs, it will cause the explosion-proof switch to malfunction, causing the en...

AI Technical Summary

Problems solved by technology

[0002] With the rapid progress and development of the power industry, especially for the existing dust processing and mineral processing plants, a large number of explosion-proof switches are required to protect the power supply system and switchgear, and the explosion-proof switches used at this stage Basically, the control switch action is controlled by the control circuit such as the switch body and the leakage protection circuit to realize tripping, locking and other actions, and to realize power-on safety. Therefore, it is difficult to monitor the on-off state of the control circuit in actual use, especially in the control circuit. When a fault occurs, it will cause the explosion-proof switch to malfunction, causing the entire circuit to be paralyzed, causing huge production losses to a large extent, and the traditional manual fault monitoring method is complex in operation and takes a long time, and it is difficult to solve it in the shortest time. Find the reason and resume production within the scope, which greatly increases the failure cost of production, prolongs the production cycle, and causes great economic losses

Images