Switch cabinet contact temperature monitoring and alarming system

Abstract

A warning system for monitoring switch cabinet contact temperature is composed of a switch cabinet temperature detection circuit, a plurality of switch cabinet contact temperature detection circuit, a corresponding upper computer and a remote monitor center, wherein the switch cabinet contact temperature detection circuit is composed of a power supply unit, a temperature sensor, a signal detection microprocessor group and data transmission bluetooth module; the upper computer is composed of a data reception bluetooth module, a data microprocessor group, a data display warning unit, a data communication port and a power supply; the upper computer analyzes the received contact temperature data, switch cabinet air temperature data and switch cabinet environment temperature data, and transmits to the data display warning unit and data communication port after processing, and the remote monitor center by network. The invention which using the Bluetooth technology solves the high voltage isolation transmission problem of electrical switch equipment with wider monitoring range than the same class products, can be applied in contact temperature online monitoring of high voltage and ultrahigh voltage switch equipment.

Description

technical field [0001] The invention belongs to the field of safe operation monitoring of electric equipment, and in particular relates to a temperature monitoring and alarming system of a switch cabinet contact point. Background technique [0002] With the development of the power grid and the improvement of equipment technology, 10kv and 35kv system switchgears have been widely used in the power grid. The internal overheating of the switchgear has become a common problem in the use of the switchgear. Due to the airtightness of the switchgear body, in some areas with heavy loads, the temperature rise of the switchgear exceeds the standard. The temperature rise of the switchgear exceeds the standard, which directly affects the safe and stable operation of the equipment. Moreover, the problem of overheating is a continuous development process. If it is not controlled, the degree of overheating will continue to increase, and it will have a great impact on the performance of th...

AI Technical Summary

Problems solved by technology

The internal overheating of the switchgear has become a common problem in the use of the switchgear. Due to the airtightness of the switchgear, in some areas with heavy loads, the temperature rise of the switchgear exceeds the standard.

The temperature rise of the switchgear exceeds the standard, which directly affects the safe and stable operation of the equipment. Moreover, the problem of overheating is a continuous development process. If it is not controlled, the degree of overheating will continue to increase, and it will have a great impact on the performance of the insulating parts and the life of the equipment. influences

In this way, there are 21 places that need to be detected. If the temperature of any connection point is too high, it may become a hidden danger of equipment operation accidents. Since the installation of temperature measuring devices at all detection points is limited, the above-mentioned patent method fails to provide a comprehensive detection of all components in the switch cabinet. Solutions for electrical connection points

[0013] Furthermore, the current substations are basically unattended. Therefore, when there is a problem with the detection system itself, it is very important whether the remote monitoring center can detect it. The existing detection system lacks the necessary self-inspection function.

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