Monitoring system for incoming and outgoing line temperatures of 0.4KV transformer area

Abstract

The invention discloses a monitoring system for incoming and outgoing line temperatures of a 0.4KV transformer area. The monitoring system comprises a field management machine connected with a plurality of wireless temperature measurement terminals, wherein the field management machine is connected with a background data exchanger, and the background data exchanger is connected to a monitoring main station via Ethernet. The wireless temperature measurement terminals comprise temperature sensors connected with incoming and outgoing lines of the 0.4KV transformer area; the temperature sensors are connected to a signal processing and amplification circuit; the signal processing and amplification circuit is connected to a singlechip; the singlechip is connected with a wireless transmitting module; and the singlechip and the wireless transmitting module are connected with a power supply unit respectively. The system employs a mode integrating multiple communication modes such as wireless and the Ethernet; the wireless temperature measurement terminals employ a digital sensor technology; the equipment temperature can be monitored in real time; in addition, data can be transmitted into a database of a server for storage through a local area network; and other users can enquire the data through the local area network.

Description

technical field [0001] The invention relates to the field of temperature monitoring of transformer inlet and outlet lines, in particular to a temperature monitoring system for inlet and outlet wires of a 0.4KV transformer station area, aiming at protecting the normal operation of the transformer. Background technique [0002] There are many methods of temperature measurement. According to whether the measuring body is in contact with the measured medium, it can be divided into two categories: contact temperature measurement method and non-contact temperature measurement method. The characteristic of the contact temperature measurement method is that the temperature measuring element is in direct contact with the measured object, and there is sufficient heat exchange between the two, and finally heat balance is reached. At this time, the value of a certain physical parameter of the temperature sensing element represents the temperature of the measured object. The temperature ...

AI Technical Summary

Problems solved by technology

The disadvantages and deficiencies of these methods are: First, manual measurement is very dangerous, because the equipment and places to be tested are high-voltage, high-altitude, and difficult to access, which can easily cause harm to the measurement personnel

Secondly, although wired measurement avoids harm to the measuring personnel, because the method of wired measurement is to transmit measurement data through lines, the tedious and messy equipment lines make the installation quite cumbersome, the flexibility of measurement is greatly reduced, and it is difficult to change the lines once they are laid. , and the cost is relatively high

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