CN112113675A - Contact temperature monitor in high tension switchgear - Google Patents

Contact temperature monitor in high tension switchgear Download PDF

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Publication number
CN112113675A
CN112113675A CN202010970663.1A CN202010970663A CN112113675A CN 112113675 A CN112113675 A CN 112113675A CN 202010970663 A CN202010970663 A CN 202010970663A CN 112113675 A CN112113675 A CN 112113675A
Authority
CN
China
Prior art keywords
temperature
module
temperature sensor
wireless transmission
switch cabinet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010970663.1A
Other languages
Chinese (zh)
Inventor
魏守耀
王思亮
张恒民
李晓蓉
刘宁宁
张秀群
张会敏
刘淑月
金臻
孙善博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202010970663.1A priority Critical patent/CN112113675A/en
Publication of CN112113675A publication Critical patent/CN112113675A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02Means for indicating or recording specially adapted for thermometers
    • G01K1/024Means for indicating or recording specially adapted for thermometers for remote indication

Abstract

The invention discloses a contact temperature monitor in a high-voltage switch cabinet, which comprises a temperature acquisition device, a data receiving device and an upper computer workstation, wherein the temperature acquisition device comprises a single chip microcomputer, a temperature sensor module, a wireless transmission module and a device power supply module, the temperature sensor module is arranged at a temperature point to be measured in the high-voltage switch cabinet, the single chip microcomputer is respectively connected with the temperature sensor module and the wireless transmission module, the device power supply module provides a working power supply for the single chip microcomputer and the wireless transmission module, and the data receiving device is respectively connected with the wireless transmission module and the upper computer workstation in a wireless communication mode. According to the invention, the temperature sensor is directly arranged at the contact point in the cabinet, the temperature data is uploaded to the upper computer through wireless transmission, so that the temperature change can be conveniently monitored remotely by personnel, and the operation and maintenance personnel can analyze possible defects of equipment according to the annual historical data, so as to early warn in advance and take corresponding measures to eliminate hidden dangers, thereby improving the operation and maintenance quality.

Description

Contact temperature monitor in high tension switchgear
Technical Field
The invention relates to a contact temperature monitor in a high-voltage switch cabinet.
Background
In an electric power system, a high-voltage switch cabinet plays roles in electric energy conversion, power circuit switching on and off, monitoring of power consumption change, electric power system circuit fault protection and the like. The totally-enclosed metal armored switch cabinet and the cable branch box are widely applied to a 10kV and 35kV voltage class system and serve as devices for receiving and distributing electric energy in a power supply system, the reliability of the performance of the totally-enclosed metal armored switch cabinet and the cable branch box is related to the safe operation of a power system, and abnormal or damaged equipment can be caused due to overhigh temperature, so that the temperature of parts such as a high-voltage switch cabinet breaker contact, a cable terminal head and the like can be monitored by adopting effective means, the equipment can be effectively maintained by alarming and prompting when the temperature exceeds a normal range, the equipment loss is reduced, and the safe operation of the high-voltage switch cabinet is guaranteed.
The existing scheme mainly adopts an infrared temperature measurement mode to measure temperature. There are the following problems: (1) because the glass window of the cabinet body of the high-voltage switch cabinet and the internal elements are shielded, a temperature measuring blind area exists, the temperature of a contact in the cabinet cannot be accurately obtained, and the safety and reliability of equipment cannot be effectively guaranteed. (2) When an infrared thermometer is used for measuring temperature, due to the non-contact characteristic, the measurement precision is limited by the distance and the measurement area. (3) When the operation and maintenance personnel use the infrared thermometer, the operation and maintenance personnel need to enter a transformer substation site for many times, the total station equipment is numerous, and a large amount of time and energy are consumed for completing measurement of all the equipment.
Because the existing infrared temperature measurement mode is blocked by an insulating medium or an equipment shell, the case that the electric equipment is burnt due to overhigh temperature caused by the fact that the temperature cannot be measured so as to cause more accidents exists, and therefore the temperature of a contact in the cabinet needs to be measured through a temperature monitor.
Disclosure of Invention
In order to solve the problems, the invention provides a contact temperature monitor in a high-voltage switch cabinet, which can early warn and adopt corresponding measures to eliminate hidden dangers and improve the operation and maintenance quality.
The technical scheme adopted for solving the technical problems is as follows:
the temperature monitoring device comprises a temperature acquisition device, a data receiving device and an upper computer workstation, wherein the temperature acquisition device comprises a single chip microcomputer, a temperature sensor module, a wireless transmission module and a device power supply module, the temperature sensor module is arranged at a temperature point to be measured in the high-voltage switch cabinet, the single chip microcomputer is respectively connected with the temperature sensor module and the wireless transmission module, the device power supply module provides a working power supply for the single chip microcomputer and the wireless transmission module, and the data receiving device is respectively connected with the wireless transmission module and the upper computer workstation in a wireless communication mode.
As a possible implementation manner of this embodiment, the temperature sensor module adopts a single bus type digital temperature sensor, the single bus type digital temperature sensor is installed on a retractable flame-retardant silica gel wrist strap, and the retractable flame-retardant silica gel wrist strap is bound at a point to be measured in the high-voltage switch cabinet.
As a possible implementation manner of this embodiment, the single bus type digital temperature sensor is internally provided with an industrial-grade lithium sub-battery.
As a possible implementation manner of this embodiment, the power supply module of the device employs a wide temperature lithium battery.
As a possible implementation manner of this embodiment, the data receiving apparatus employs a visual gateway, the visual gateway includes a processor, a touch screen, a 1GHz radio frequency chip and a GPRS module, the touch screen, the 1GHz radio frequency chip and the GPRS module are respectively connected with the processor, the 1GHz radio frequency chip is wirelessly connected with a wireless transmission module, and the GPRS module is wirelessly connected with an upper computer workstation.
As a possible implementation manner of this embodiment, the upper computer workstation includes a PC capable of connecting to the internet, and the PC collects temperature data collected by the temperature sensor module, performs data deepening application and analysis processing, centrally displays temperature changes of each temperature measurement point in a webpage, performs real-time online remote monitoring, and sets an over-temperature alarm function.
As a possible implementation manner of this embodiment, the upper computer workstation further includes an over-temperature alarm module.
The technical scheme of the embodiment of the invention has the following beneficial effects:
according to the invention, the temperature sensor is directly arranged at the contact point in the cabinet, the temperature data is uploaded to the upper computer through wireless transmission, so that the temperature change can be conveniently monitored remotely by personnel, and the operation and maintenance personnel can analyze possible defects of equipment according to the annual historical data, so as to early warn in advance and take corresponding measures to eliminate hidden dangers, thereby improving the operation and maintenance quality.
The temperature measuring device measures the temperature by directly contacting with a temperature measuring point, and solves the problem that the temperature cannot be measured due to the shielding of the window glass of the switch cabinet. The temperature acquisition device is mounted in a binding mode without wiring, is convenient and quick, uploads measured data to the upper computer, can perform early warning or protective action when the temperature of a contact exceeds a limit value according to a set temperature limit value, and can remotely monitor a plurality of temperature measurement point data and discover equipment hidden dangers through analysis data by operation and maintenance personnel, so that early warning measures are taken in time, serious accidents are avoided, and manpower, material resources and financial resources are greatly reduced.
Description of the drawings:
FIG. 1 is a block diagram illustrating a contact temperature monitor within a high voltage switchgear, in accordance with an exemplary embodiment;
FIG. 2 is a schematic diagram of an application of the present invention;
FIG. 3 is a block diagram illustrating a temperature acquisition device according to an exemplary embodiment.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
Because the existing infrared temperature measurement mode is blocked by an insulating medium or an equipment shell, the case that the electric equipment is burnt due to overhigh temperature caused by the fact that the temperature cannot be measured so as to cause more accidents exists, and therefore the temperature of a contact in the cabinet needs to be measured through a temperature monitor. Therefore, the invention provides a contact temperature monitor in a high-voltage switch cabinet, which is applied to temperature measuring equipment on structures such as a bus bar and a cable terminal in the high-voltage switch cabinet.
As shown in fig. 1 to 3, the contact temperature monitor in a high-voltage switch cabinet provided in an embodiment of the present invention includes a temperature acquisition device, a data receiving device, and an upper computer workstation, where the temperature acquisition device includes a single chip microcomputer, a temperature sensor module, a wireless transmission module, and a device power supply module, the temperature sensor module is disposed at a temperature point to be measured in the high-voltage switch cabinet, the single chip microcomputer is respectively connected with the temperature sensor module and the wireless transmission module, the device power supply module provides a working power supply for the single chip microcomputer and the wireless transmission module, and the data receiving device is respectively connected with the wireless transmission module and the upper computer workstation in a wireless communication manner.
As a possible implementation manner of this embodiment, the temperature sensor module adopts a single bus type digital temperature sensor, the single bus type digital temperature sensor is installed on a retractable flame-retardant silica gel wrist strap, and the retractable flame-retardant silica gel wrist strap is bound at a point to be measured in the high-voltage switch cabinet. The temperature sensor module adopts a single bus type digital temperature sensor DS18B02 produced by Dallas corporation in America, which has a unique single-wire interface mode, and only needs to occupy a 1-bit I/O port for converting a non-electric analog quantity temperature value into a digital signal. Each DS18B02 sensor has an independent single serial number, and supports a microprocessor to realize multipoint temperature measurement through a single signal wire, so that a distributed multipoint temperature measurement detection system is greatly simplified; when measuring the temperature, no external element is needed, and power can be directly supplied through a signal wire; in addition, the temperature measuring device has high temperature measuring precision and low power consumption. The sensor was 5.8 x wide by 4.5 x thick by 2.6 (cm). Adopt the mode of retractable wrist strap binding, the wrist strap is long 30cm, and weight 89g adopts high temperature resistant fire-retardant type silica gel, and yellow, green, red trichrome can be chooseed for use to conventional colour to distinguish mutually.
As a possible implementation manner of this embodiment, the single bus type digital temperature sensor is internally provided with an industrial-grade lithium sub-battery.
As a possible implementation manner of this embodiment, the power supply module of the device employs a wide temperature lithium battery. Choose for use wide temperature lithium cell to supply power, through the sampling frequency of extension sensor, reduce the consumption of sensor, the working life of battery can improve to about 5 years to can combine the power failure maintenance of spacer equipment to change the sensor battery.
As a possible implementation manner of this embodiment, the wireless transmission module employs a bluetooth technology with strong anti-interference performance, high transmission rate, and low power
As a possible implementation manner of this embodiment, the data receiving apparatus employs a visual gateway, the visual gateway includes a processor, a touch screen, a 1GHz radio frequency chip and a GPRS module, the touch screen, the 1GHz radio frequency chip and the GPRS module are respectively connected with the processor, the 1GHz radio frequency chip is wirelessly connected with a wireless transmission module, and the GPRS module is wirelessly connected with an upper computer workstation.
As a possible implementation manner of this embodiment, the upper computer workstation includes a PC capable of connecting to the internet, and the PC collects temperature data collected by the temperature sensor module, performs data deepening application and analysis processing, centrally displays temperature changes of each temperature measurement point in a webpage, performs real-time online remote monitoring, and sets an over-temperature alarm function.
As a possible implementation manner of this embodiment, the upper computer workstation further includes an over-temperature alarm module. The combination of sound signal and red warning light signal is used, the software is used to set the upper and lower limits of temperature in the part, when the temperature exceeds the set value, the speaker of sound part will send out the warning sound of 'tic … …', and the red warning light will flash.
The temperature measuring device measures the temperature by directly contacting with a temperature measuring point, and solves the problem that the temperature cannot be measured due to the shielding of the window glass of the switch cabinet. The temperature acquisition device is mounted in a binding mode without wiring, is convenient and quick, uploads measured data to the upper computer, can perform early warning or protective action when the temperature of a contact exceeds a limit value according to a set temperature limit value, and can remotely monitor a plurality of temperature measurement point data and discover equipment hidden dangers through analysis data by operation and maintenance personnel, so that early warning measures are taken in time, serious accidents are avoided, and manpower, material resources and financial resources are greatly reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (7)

1. The utility model provides a contact temperature monitor in high tension switchgear, characterized by, includes temperature acquisition device, data receiver and host computer workstation, temperature acquisition device includes singlechip, temperature sensor module, wireless transmission module and device power module, the temperature sensor module sets up the temperature point department of awaiting measuring in high tension switchgear, the singlechip is connected with temperature sensor module and wireless transmission module respectively, device power module provides working power supply for singlechip and wireless transmission module, data receiver adopts wireless communication mode to be connected with wireless transmission module and host computer workstation respectively.
2. The contact temperature monitor in the high-voltage switch cabinet as claimed in claim 1, wherein the temperature sensor module is a single bus type digital temperature sensor, the single bus type digital temperature sensor is mounted on a retractable flame-retardant silica gel wrist strap, and the retractable flame-retardant silica gel wrist strap is bound at a point to be measured in the high-voltage switch cabinet.
3. The contact temperature monitor in a high voltage switch cabinet as claimed in claim 1, wherein the single bus digital temperature sensor incorporates a technical grade li-sub battery.
4. The contact temperature monitor in a high voltage switch cabinet according to claim 1, wherein the device power supply module employs a wide temperature lithium battery.
5. The contact temperature monitor in the high-voltage switch cabinet according to claim 1, wherein the data receiving device adopts a visual gateway, the visual gateway comprises a processor, a touch screen, a 1GHz radio frequency chip and a GPRS module, the touch screen, the 1GHz radio frequency chip and the GPRS module are respectively connected with the processor, the 1GHz radio frequency chip is wirelessly connected with the wireless transmission module, and the GPRS module is wirelessly connected with the upper computer workstation.
6. The contact temperature monitor in the high-voltage switch cabinet according to any one of claims 1 to 5, wherein the upper computer workstation comprises a PC which can be connected with the Internet, the PC collects temperature data collected by the temperature sensor module, carries out data deepening application and analysis processing, displays temperature change of each temperature measuring point in a webpage in a centralized manner, carries out real-time online remote monitoring, and sets an overtemperature alarm function.
7. The contact temperature monitor in a high voltage switch cabinet according to claim 6, wherein the upper computer workstation further comprises an over temperature alarm module.
CN202010970663.1A 2020-09-15 2020-09-15 Contact temperature monitor in high tension switchgear Pending CN112113675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010970663.1A CN112113675A (en) 2020-09-15 2020-09-15 Contact temperature monitor in high tension switchgear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010970663.1A CN112113675A (en) 2020-09-15 2020-09-15 Contact temperature monitor in high tension switchgear

Publications (1)

Publication Number Publication Date
CN112113675A true CN112113675A (en) 2020-12-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010970663.1A Pending CN112113675A (en) 2020-09-15 2020-09-15 Contact temperature monitor in high tension switchgear

Country Status (1)

Country Link
CN (1) CN112113675A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101055209A (en) * 2007-05-31 2007-10-17 淄博惠工仪器有限公司 Switch cabinet contact temperature monitoring and alarming system
CN104390711A (en) * 2014-11-18 2015-03-04 湖南工程学院 Contact thermometer of high-voltage switch cabinet
CN105758541A (en) * 2016-04-28 2016-07-13 厦门理工学院 Medium- and high-voltage switch cabinet temperature on-line monitoring device
CN209559365U (en) * 2019-01-09 2019-10-29 湖南长高思瑞自动化有限公司 A kind of wireless temperature measuring device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101055209A (en) * 2007-05-31 2007-10-17 淄博惠工仪器有限公司 Switch cabinet contact temperature monitoring and alarming system
CN104390711A (en) * 2014-11-18 2015-03-04 湖南工程学院 Contact thermometer of high-voltage switch cabinet
CN105758541A (en) * 2016-04-28 2016-07-13 厦门理工学院 Medium- and high-voltage switch cabinet temperature on-line monitoring device
CN209559365U (en) * 2019-01-09 2019-10-29 湖南长高思瑞自动化有限公司 A kind of wireless temperature measuring device

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