An optical fiber-based detection device for coal mine high-voltage power grid switch status

Abstract

The invention belongs to the field of power system monitoring, in particular to an optical fiber-based coal mine high-voltage power grid switch state detection device; including a switch base, a rotating insulator, a No. 1 insulator, a No. 2 insulator, a switch contact and an indicating unit; the rotating The insulator, the No. 1 insulator and the No. 2 insulator are respectively fixed on the switch base, and the rotating insulator is located between the No. 1 insulator and the No. 2 insulator; the end of the switch contact is hinged on the top of the No. 1 insulator; There is a cylindrical cavity; the hydraulic oil and the piston rod are arranged in the cylindrical cavity; one end of the piston rod protrudes from the top of the No. 2 insulator, and the other end of the piston rod is located in the cylindrical cavity The bottom space is sealed; the hydraulic oil is located in the sealed space between the piston rod and the cylindrical cavity; through the cooperation of the No. 1 insulator, the No. 2 insulator, the switch contact and the indicating unit, it is possible to judge whether the switch is closed through the indicating plate.

Description

technical field [0001] The invention belongs to the field of power system monitoring, in particular to an optical fiber-based detection device for a switch state of a coal mine high-voltage power grid. Background technique [0002] With the continuous development of coal mining enterprises, the demand for coal mining equipment is increasing, and the orderly operation of these coal mining equipment requires the power supply system to provide necessary power resources; The problem of power failure will affect the smooth progress of coal mine production and even bring certain safety hazards; reasons such as overvoltage, overcurrent and contact heating in high-voltage switches can easily cause the temperature of the power supply line to rise and cause danger. In order to avoid this To improve the reliability of power supply, it is necessary to detect the state of the high-voltage switch, so that the staff can observe the state of the high-voltage switch through the indicator pla...

AI Technical Summary

Problems solved by technology

[0003] In order to make up for the deficiencies of the existing technology and solve the problem that the staff need to observe the state of the high-voltage switch through the indicator plate without touching the switch; the present invention proposes a detection device for the state of the high-voltage power grid in coal mines based on optical fiber

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