CN213579838U

CN213579838U - Power supply protection device with line temperature remote real-time monitoring function

Info

Publication number: CN213579838U
Application number: CN202022988817.8U
Authority: CN
Inventors: 袁家良
Original assignee: Guangdong Pangsheng Technology Co ltd
Current assignee: Guangdong Pangsheng Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-06-29
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a take long-range real-time supervision's of line temperature power protection device, including single chip microcomputer control module, voltage acquisition module, current acquisition module, cable temperature acquisition module, early warning/alarm module, thing networking communication system and server platform, single chip microcomputer control module's input is connected voltage acquisition module, current acquisition module and cable temperature acquisition module's output, and early warning/alarm module's input is connected to cable temperature acquisition module's output simultaneously, and thing networking communication system's input, thing networking communication system's output connection server platform are connected to early warning/alarm module's output. This take remote real-time supervision's of line temperature power protection device, managers that can help the maintenance find the reason that the cable temperature risees faster, more conveniently to when automatic mode, when the cable temperature surpassed the warning, can automatic cutout load, maintain power supply distribution system's safety.

Description

Power supply protection device with line temperature remote real-time monitoring function

Technical Field

The utility model relates to a power protection monitoring facilities technical field specifically is a take long-range real-time supervision's of line temperature power protection device.

Background

The transmission line is an important component of the power system and is also the weakest link of the power grid, and the probability of the transmission line breaking down is much higher than that of other electrical equipment. Wherein the cable temperature has a serious impact on the safe operation of the power supply system.

The temperature of the cable of the power supply system rises, and the resistance also increases with the rise, causing the loss of power. The insulating materials of the power equipment contain water and impurities dissolved in the water to different degrees, under the action of an electric field, the impurities generate conductive current of the insulating materials, the temperature is increased, the internal differentiation of a medium and the movement of ions are accelerated, the water and the impurities extend along the two polar directions of the electric field to increase the conductivity, and therefore, the temperature is increased, and the insulation resistance is obviously reduced according to indexes.

Overheating of the cable can cause the power protection device to trip and in severe cases can also cause a fire. Cable aging causes the temperature of the cable to rise, and the cable aging has serious threat to the safety of an electric system, so monitoring the temperature of the cable is also concerned about the cable aging. The protection of the common power supply protection device to the power supply is not comprehensive enough, and the attention to the cable temperature detection is often neglected, or the remote real-time monitoring can not be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take long-range real-time supervision's of line temperature power protection device, the managers that can help to maintain find the reason that the cable temperature risees faster, more conveniently to when automatic mode of operation, when the cable temperature surpassed the warning, can the automatic cutout load, maintain power supply distribution system's safety, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a power supply protection device with a function of remote real-time monitoring of line temperature comprises a single-chip microcomputer control module, a voltage acquisition module, a current acquisition module, a cable temperature acquisition module, an early warning/alarm module, an Internet of things communication system and a server platform, wherein the input end of the single-chip microcomputer control module is connected with the output ends of the voltage acquisition module, the current acquisition module and the cable temperature acquisition module, the output end of the cable temperature acquisition module is connected with the input end of the early warning/alarm module, the output end of the early warning/alarm module is connected with the input end of the Internet of things communication system, and the output end of the Internet of things communication system;

the voltage acquisition module and the current acquisition module are composed of a chip U8, a voltage transformer TV1 and a current transformer TA1, wherein a pin 1 and a pin 2 of the voltage transformer TV1 are respectively connected with an alternating current live wire AC _ L and an alternating current zero wire AC _ N, a pin 3 and a pin 4 of the voltage transformer TV1 are respectively connected with a parallel resistor R52 and a capacitor C42, a pin 3 of the voltage transformer TV1 is connected with a resistor R50, a pin 4 of the voltage transformer TV1 is connected with a resistor R54, a resistor R50 and a resistor R54 are respectively connected with a pin 9 and a pin 10 of the chip U8, a pin 1 and a pin 2 of the current transformer TA1 are respectively connected with a parallel resistor R56 and a capacitor C45, a pin 1 of the current transformer TA1 is connected with a resistor R55, a pin 2 of the current transformer TA 9 is connected with a resistor R57, and a resistor R55 and a resistor R57 are respectively connected with a.

Preferably, the cable temperature acquisition module adopts a temperature sensor U18 of a DS18B20 model to acquire temperature data.

Preferably, the internet of things communication system consists of a wired TCP, WIFI, NB _ Iot and a 4G network.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this take long-range real-time supervision's of line temperature power protection device, constantly acquire real-time data through voltage acquisition module and current acquisition module, cable temperature acquisition module constantly acquires the temperature data of cable simultaneously, when discovering the cable temperature rise, send the warning via early warning/alarm module, singlechip control module carries out the analysis processes back, report for the server platform through thing networking communication system, utilize the server platform to big data automatic analysis handles, perhaps combine data analysis processes by maintainer, make if because the excessive pressure, overcurrent, the cable temperature rise that the short circuit arouses, can cut off the power of load end. If the temperature of the cable is not increased due to the reasons, other reasonable processing can be carried out by combining the data to find out the reason of the temperature increase of the cable, and the load power supply is immediately cut off so as to ensure the safety of the whole power utilization system.

Drawings

Fig. 1 is a flow chart of cable protection monitoring according to the present invention;

FIG. 2 is a circuit diagram of the voltage and current acquisition circuit of the present invention;

fig. 3 is a circuit diagram of the cable temperature acquisition of the present invention.

In the figure: 1. a single chip microcomputer control module; 2. a voltage acquisition module; 3. a current collection module; 4. a cable temperature acquisition module; 5. an early warning/alarm module; 6. an Internet of things communication system; 7. a server platform.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, a power protection device with line temperature remote real-time monitoring, including single-chip microcomputer control module 1, voltage acquisition module 2, current acquisition module 3, cable temperature acquisition module 4, early warning/alarm module 5, internet of things communication system 6 and server platform 7, voltage acquisition module 2 is connected to the input of single-chip microcomputer control module 1, current acquisition module 3 and the output of cable temperature acquisition module 4, the input of early warning/alarm module 5 is connected to the output of cable temperature acquisition module 4 simultaneously, the input of internet of things communication system 6 is connected to the output of early warning/alarm module 5, the output of internet of things communication system 6 is connected to server platform 7.

In the aforesaid, constantly acquire real-time data through voltage acquisition module 2 and current acquisition module 3, cable temperature acquisition module 4 constantly acquires the temperature data of cable simultaneously, when discovering the cable temperature rise, send out the warning via early warning/alarm module 5, singlechip control module 1 carries out the analysis processes back, report to server platform 7 through thing networking communication system 6, utilize server platform 7 to big data automatic analysis and processing, perhaps combine data analysis and processing by maintainer, make if because the excessive pressure, overcurrent, the cable temperature rise that the short circuit arouses, can cut off the power of load end.

Referring to fig. 2-3, the voltage acquisition module 2 and the current acquisition module 3 are composed of a chip U8, a voltage transformer TV1 and a current transformer TA1, wherein

pins

1 and 2 of the voltage transformer TV1 are respectively connected with an AC live wire AC _ L and an AC zero wire AC _ N, pins 3 and 4 of the voltage transformer TV1 are connected with a parallel resistor R52 and a capacitor C42, pin 3 of the voltage transformer TV1 is connected with a resistor R50, pin 4 of the voltage transformer TV1 is connected with a resistor R54, a resistor R50 and a resistor R54 are respectively connected with

pins

9 and 10 of the chip U8, pin 1 and pin 2 of the current transformer TA1 are connected with a parallel resistor R56 and a capacitor C45, pin 1 of the current transformer TA1 is connected with a resistor R55, pin 2 of the current transformer TA 9 is connected with a resistor R57, and a resistor R55 and a resistor R57 are respectively connected with

pins

15 and 16 of the chip U8.

In the above, the current and the voltage pass through the corresponding voltage transformer TV1 and current transformer TA1, the acquired analog signals of the current preliminarily processed mains voltage and the current at the load end are sent to a professional chip U8 for analysis and processing, and finally the chip U8 converts the analog quantity into a digital quantity and sends the digital quantity to the single chip microcomputer control module 1; if the voltage is normal and the current is too large, the temperature of the cable is judged to be increased due to overcurrent; if the current is normal and the voltage is too high, the temperature of the cable is judged to be increased due to overvoltage; if the reasons cannot be analyzed from the voltage and the current, the power is switched to find out the reason of the temperature rise of the cable; if the temperature of the cable rises rapidly, the short circuit can be judged to be caused initially, and the power supply protection device can be immediately cut off.

Because the cable temperature acquisition module 4 adopts the temperature sensor U18 of DS18B20 model to acquire temperature data, when the temperature of the cable is found to be increased, a warning can be sent out through the early warning/alarming module 5, and the cable temperature is analyzed and processed through the single chip microcomputer control module 1.

Because thing networking communication system 6 comprises wired TCP, WIFI, NB _ Iot and 4G network, consequently, not only can the long-range real-time supervision cable the temperature, voltage, the electric current data that combine this power protection device to gather moreover can help the group to maintain and managers more fast and more conveniently find the reason that the cable temperature rose, be convenient for maintain power supply system's safe operation.

This take long-range real-time supervision's of line temperature power protection device, constantly acquire real-time data through voltage acquisition module 2 and current acquisition module 3, cable temperature acquisition module 4 constantly acquires the temperature data of cable simultaneously, when discovering the cable temperature rise, send out the warning via early warning/alarm module 5, singlechip control module 1 carries out the analysis and processing back, report for server platform 7 through thing networking communication system 6, utilize server platform 7 to big data automatic analysis and processing, perhaps combine data analysis and processing by maintainer, make if because the excessive pressure, overcurrent, the cable temperature rise that the short circuit arouses, can cut off the power of load end. If the temperature of the cable is not increased due to the reasons, other reasonable processing can be carried out by combining the data to find out the reason of the temperature increase of the cable, and the load power supply is immediately cut off so as to ensure the safety of the whole power utilization system.

In summary, the following steps: this take long-range real-time supervision's of line temperature power protection device, managers that can help the maintenance find the reason that the cable temperature risees faster, more conveniently to when automatic mode, when the cable temperature surpassed the warning, can the automatic cutout load, maintain power supply distribution system's safety, so can effectively solve prior art problem.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take long-range real-time supervision's of line temperature power protection device, includes single chip microcomputer control module (1), voltage acquisition module (2), current acquisition module (3), cable temperature acquisition module (4), early warning/alarm module (5), thing networking communication system (6) and server platform (7), its characterized in that: the input end of the single-chip microcomputer control module (1) is connected with the output ends of the voltage acquisition module (2), the current acquisition module (3) and the cable temperature acquisition module (4), meanwhile, the output end of the cable temperature acquisition module (4) is connected with the input end of the early warning/alarming module (5), the output end of the early warning/alarming module (5) is connected with the input end of the Internet of things communication system (6), and the output end of the Internet of things communication system (6) is connected with the server platform (7);

the voltage acquisition module (2) and the current acquisition module (3) are composed of a chip U8, a voltage transformer TV1 and a current transformer TA1, wherein a pin 1 and a pin 2 of the voltage transformer TV1 are respectively connected with an alternating current live wire AC _ L and an alternating current zero line AC _ N, a pin 3 and a pin 4 of the voltage transformer TV1 are respectively connected with a parallel resistor R52 and a capacitor C42, a pin 3 of the voltage transformer TV1 is connected with a resistor R50, a pin 4 of the voltage transformer TV1 is connected with a resistor R54, a resistor R50 and a resistor R54 are respectively connected with a pin 9 and a pin 10 of the chip U8, a pin 1 and a pin 2 of the current transformer TA1 are respectively connected with a parallel resistor R56 and a capacitor C45, a pin 1 of the current transformer TA1 is connected with a resistor R55, a pin 2 of the current transformer TA 9 is connected with a resistor R57, and a resistor R55 and a resistor R57 are respectively connected with a.

2. The power supply protection device with the function of line temperature remote real-time monitoring as claimed in claim 1, characterized in that: the cable temperature acquisition module (4) adopts a temperature sensor U18 of a DS18B20 model to acquire temperature data.

3. The power supply protection device with the function of line temperature remote real-time monitoring as claimed in claim 1, characterized in that: the Internet of things communication system (6) is composed of a wired TCP, WIFI, NB _ Iot and a 4G network.