CN205748654U - Transformator real-time monitoring system based on infrared thermal imaging - Google Patents

Abstract

This utility model relates to a kind of transformator real-time monitoring system based on infrared thermal imaging, and this system includes infrared temperature sensor, signal acquisition and processing apparatus, remote signal transporter, electric supply installation, alarm device, equipment self-inspection device and remote terminal；Infrared temperature sensor distribution is arranged on around transformator at observation station, for detecting the variations in temperature of observation station；Signal acquisition and processing apparatus is for receiving the data of infrared temperature sensor, and processes data and judge；The judged result of signal acquisition and processing apparatus is sent to remote terminal by remote signal transporter；Equipment self-inspection device is for realizing the equipment self-inspection of whole system, and state judges that each equipment is the most properly functioning, and is sent to remote terminal by remote signal transporter by self-detection result.Native system simple in construction, easy for installation, the superheating phenomenon of transformator can be monitored in real time, and can be by monitoring result remote transmission to management personnel's hands, it is simple to management personnel understand equipment working condition whenever and wherever possible, and process in time.

Description

Transformer real-time monitoring system based on infrared thermal imaging

technical field

The utility model belongs to the technical field of electric equipment detection and relates to a transformer real-time monitoring system based on infrared thermal imaging.

Background technique

The power transformer occupies a large proportion in the transmission and substation network, and its importance is self-evident. Once the transformer fails suddenly and cannot be used, not only the economic loss is huge, but also the people's production and life caused by the shutdown and power outage The inconvenience will cause a social loss that cannot be underestimated. On the contrary, if the precursors of serious failures can be detected in advance and planned maintenance and repair measures are taken, the possible economic losses and social impacts can be well avoided.

Practice shows that the main fatal faults of transformers, such as partial discharge, overheating, etc., can be detected by different technical methods to varying degrees, but the current inspection methods have their own advantages and limitations.

There are many kinds of faults in electrical equipment, but most of them are accompanied by fever. From the perspective of infrared diagnosis, it is usually divided into external faults and internal faults. As we all know, in the operation of the power system, the current-carrying conductor will produce resistance loss due to the current effect, and there are a large number of connectors, joints or contacts on the entire circuit of power transmission. Ideally, the contact resistance of various connectors, joints or contacts in the power transmission circuit is lower than the resistance of the connected conductors, then the loss and heat generation of the connection parts will not be higher than that of the adjacent current-carrying conductors. However, once a certain Some connectors, joints or contacts are poorly connected, resulting in increased contact resistance, and there will be more resistance loss and higher temperature rise in this part, resulting in local overheating. These are usually external faults. The characteristics of external faults are: local temperature rises, which are easy to find with infrared thermal imaging cameras. If they cannot be dealt with in time, the situation will deteriorate rapidly, and it is easy to cause accidents and cause losses.

Infrared thermal imaging technology is currently widely used in all walks of life. Therefore, real-time online monitoring of transformers using infrared imaging technology has become a current research and development hotspot.

Utility model content

In view of this, the purpose of this utility model is to provide a transformer real-time monitoring system based on infrared thermal imaging, which can sense the instantaneous temperature change of the monitoring object and realize real-time monitoring of the transformer temperature.

In order to achieve the above object, the utility model provides the following technical solutions:

A transformer real-time monitoring system based on infrared thermal imaging, the system includes an infrared temperature sensor, a signal acquisition and processing device, a remote signal transmission device, a power supply device, an alarm device, an equipment self-inspection device and a remote terminal;

The infrared temperature sensors are distributed and arranged at observation points around the transformer to detect temperature changes at the observation points;

The signal acquisition and processing device is used to receive the data of the infrared temperature sensor, and process and judge the data, including a preamplifier connected in sequence, a sample holder, an A/D converter and a high-speed buffer memory, and the preamplifier The input terminal is electrically connected with the infrared temperature sensor;

The remote signal transmission device transmits the judgment result of the signal acquisition and processing device to the remote terminal;

The alarm device is used to give an alarm prompt when the transformer fails, and the power supply device is used to supply power to the entire system;

The equipment self-inspection device is used to realize the equipment self-inspection of the entire system, and judges whether each equipment is running normally by detecting the working status of the infrared temperature sensor, signal acquisition and processing device, remote signal transmission device, and alarm device in real time, and reports the self-inspection results Send to the remote terminal through the remote signal transmission device;

The infrared temperature sensor includes an optical lens and an infrared radiation signal processing circuit, wherein the optical lens collects the infrared radiation, and the infrared radiation signal processing circuit converts the received infrared radiation signal into an electrical signal for output.

Further, the signal remote sending device transmits data to the remote terminal by means of wireless communication.

Further, the alarm device adopts an audible and visual alarm.

Further, the power supply device adopts solar battery or lithium battery.

Further, the remote terminal adopts a smart phone or a personal computer with a wireless receiving function.

The beneficial effect of the utility model is that: the utility model realizes the real-time monitoring of the transformer fault through the infrared thermal imaging technology, the whole system structure is simple, the installation is convenient, the overheating phenomenon of the transformer can be monitored in real time, and the monitoring result can be remotely transmitted to the management In the hands of personnel, it is convenient for managers to understand the working status of equipment anytime and anywhere, and to deal with it in a timely manner.

Description of drawings

In order to make the purpose, technical solutions and beneficial effects of the utility model clearer, the utility model provides the following drawings for illustration:

Fig. 1 is a schematic diagram of the system structure of the present utility model.

detailed description

The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the system structure of the utility model, as shown in the figure, the system includes an infrared temperature sensor, a signal acquisition and processing device, a remote signal transmission device, a power supply device, an alarm device, an equipment self-checking device and a remote terminal;

The infrared temperature sensors are distributed and arranged at observation points around the transformer to detect temperature changes at the observation points;

The signal acquisition and processing device is used to receive the data of the infrared temperature sensor, and process and judge the data, including a preamplifier connected in sequence, a sample holder, an A/D converter and a high-speed buffer memory, and the preamplifier The input terminal is electrically connected with the infrared temperature sensor;

The remote signal transmission device transmits the judgment result of the signal acquisition and processing device to the remote terminal;

The alarm device is used to give an alarm prompt when the transformer fails, and the power supply device is used to supply power to the entire system;

The equipment self-inspection device is used to realize the equipment self-inspection of the entire system, and judges whether each equipment is running normally by detecting the working status of the infrared temperature sensor, signal acquisition and processing device, remote signal transmission device, and alarm device in real time, and reports the self-inspection results Send to the remote terminal through the remote signal transmission device;

The infrared temperature sensor includes an optical lens and an infrared radiation signal processing circuit, wherein the optical lens collects the infrared radiation, and the infrared radiation signal processing circuit converts the received infrared radiation signal into an electrical signal for output.

In this embodiment, the signal remote sending device uses wireless communication to transmit data to the remote terminal, the alarm device uses an audible and visual alarm, the power supply device uses a solar battery or a lithium battery, and the remote terminal uses an intelligent A mobile phone or a personal computer with wireless reception.

Finally, it is noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in the form Various changes can be made in the above and in the details without departing from the scope defined by the claims of the present invention.

Claims (5)

1. A transformer real-time monitoring system based on infrared thermal imaging, characterized in that: the system includes an infrared temperature sensor, a signal acquisition and processing device, a remote signal transmission device, a power supply device, an alarm device, an equipment self-check device and a remote terminal; The infrared temperature sensors are distributed and arranged at observation points around the transformer to detect temperature changes at the observation points; The signal acquisition and processing device is used to receive the data of the infrared temperature sensor, and process and judge the data, including a preamplifier connected in sequence, a sample holder, an A/D converter and a high-speed buffer memory, and the preamplifier The input terminal is electrically connected with the infrared temperature sensor; The remote signal transmission device transmits the judgment result of the signal acquisition and processing device to the remote terminal; The alarm device is used to give an alarm prompt when the transformer fails, and the power supply device is used to supply power to the entire system; The equipment self-inspection device is used to realize the equipment self-inspection of the entire system, and judges whether each equipment is running normally by detecting the working status of the infrared temperature sensor, signal acquisition and processing device, remote signal transmission device, and alarm device in real time, and reports the self-inspection results Send to the remote terminal through the remote signal transmission device; The infrared temperature sensor includes an optical lens and an infrared radiation signal processing circuit, wherein the optical lens collects the infrared radiation, and the infrared radiation signal processing circuit converts the received infrared radiation signal into an electrical signal for output. 2. A transformer real-time monitoring system based on infrared thermal imaging according to claim 1, characterized in that: the signal remote sending device transmits data to the remote terminal by means of wireless communication. 3. A transformer real-time monitoring system based on infrared thermal imaging according to claim 1, characterized in that: the alarm device adopts an audible and visual alarm. 4. A transformer real-time monitoring system based on infrared thermal imaging according to claim 1, characterized in that: said power supply device adopts solar cells or lithium batteries. 5. A transformer real-time monitoring system based on infrared thermal imaging according to claim 1, characterized in that: the remote terminal adopts a smart phone or a personal computer with a wireless receiving function.