On-line monitoring system for fuse

Abstract

The invention provides an intelligent type on-line monitoring system for a fuse. The on-line monitoring system comprises a detection device installed on the fuse and a system master station in signal connection with the detection device. The detection device is provided with a transmitting end for sending information to the system master station, and the system master station is provided with a receiving end for receiving the information sent by a microprocessor. The detection device and the fuse are arranged in a detection box. The detection device comprises a current sensor, a detection terminal voltage sensor, a position sensor, a timer and a temperature and humidity sensor. A processor, a display and a memory are arranged in the system master station, and the system master station is provided with an inquiry device.

Description

technical field [0001] The invention relates to a fuse online monitoring system. Background technique [0002] At present, in my country's medium-voltage distribution lines, fuses have been widely used. The principle mainly depends on the selection of fuses with different rated currents to limit the line current. When a large current fault occurs, the current exceeds the rated current of the fuse. , The fuse is blown to cut off the fault and realize the protection of the distribution line. These fuses are mainly used for high-current fault protection of power distribution networks and do not have intelligent functions. During the working process of these fuses, the operating data and working status of the fuse cannot be collected in real time, so it is difficult to judge the performance and quality of the fuse itself, and it is also impossible to grasp the opening and closing status of the fuse and the power-off status of the load in time , At the same time, it is impossibl...

AI Technical Summary

Problems solved by technology

During the working process of these fuses, the operating data and working status of the fuse cannot be collected in real time, so it is difficult to judge the performance and quality of the fuse itself, and it is also impossible to grasp the opening and closing status of the fuse and the power-off status of the load in time , and at the same time, it is impossible to realize condition-based maintenance according to the operating parameters of the line where the fuse is located and the load it carries

In foreign distribution lines, due to the different grid structure and equipment installation in the distribution line, there is no device specially developed for the opening and closing state of the fuse and the fault location.

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