Switchgear temperature multi-terminal monitoring system

Abstract

The invention discloses a switchgear temperature multi-terminal monitoring system. The system is characterized in that the system comprises a microcontroller, a filter and a data acquisition module, the data acquisition module comprises a temperature sensor and a signal amplifier connected with the temperature sensor, the data acquisition module is connected to the microcontroller through the filter, the microcontroller is connected with a wireless signal emission device, the switchgear temperature multi-terminal monitoring system also comprises a remote data display terminal, and the remote data display terminal is connected to the microcontroller through wireless signals emitted by the wireless signal emission device. The system is advantageous in that more flexible remote monitoring of a mobile terminal is adopted, temperature-monitoring tasks are simultaneously distributed to multiple operation personnel, the monitoring time can cover the whole day, the condition that temperature abnormal change in a switchgear due to personnel temporary leave or work negligence cannot be discovered in time can be avoided, the possibility of accident occurrence is greatly reduced, and the reliability of safety production is improved.

Description

technical field [0001] The invention relates to a safety monitoring system for electrical equipment, more specifically, it relates to a multi-terminal monitoring system for the temperature of a switch cabinet. Background technique [0002] With the development of industry, all walks of life have increasingly higher requirements for the reliability and stability of power supply in the power system. As the core link of the power system, the substation is used to collect power, increase and decrease voltage, and distribute electric energy. High and low voltage conversion and power supply tasks. As an important equipment in the substation, the high-voltage switchgear plays the role of closing and breaking the power line, which is of great significance to the safe and reliable operation of the power system. Switchgear is a very important electrical equipment in the current power system. During the long-term operation of the switchgear, its contacts and busbar connections will ge...

AI Technical Summary

Problems solved by technology

Although this temperature monitoring device avoids the need for staff to manually open the box to measure the temperature, it still requires staff to be at the switch cabinet placement site. Firstly, it is still impossible to avoid manual monitoring operations. Injury to workers due to accidental hazards that may occur when the temperature rises rapidly

[0004] In order to avoid this situation, engineers and technicians have further envisaged a method for monitoring and regulating the temperature in the switchgear cabinet by directly setting the host computer. The Chinese patent No. CN103335715A discloses a method for monitoring high-voltage switchgear The temperature system includes a microcontroller, a host computer and a data acquisition module, wherein the microcontroller is connected to the host computer through a serial communication module, and the data acquisition module includes a temperature sensor, a filter, and a signal connected to the temperature sensor and filter The amplifier and the data acquisition module are connected to the micro-controller through the filter. By setting the upper computer to control the whole system for monitoring, the temperature in the switch cabinet can be monitored in an environment far away from the production area, which is safer and more accurate. The commonly used processing modules for high temperature alarms are also integrated into the host computer bus, which is convenient for staff to quickly respond to dangerous situations. However, if this system is used, as long as the switchgear does not shut down, staff must be on duty 24 hours a day , which greatly increases the labor cost, and at the same time, the judgment of night duty personnel will also decrease under the fatigue state, which may lead to misjudgment of dangerous situations and cause unnecessary losses

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