CN202453101U

CN202453101U - High voltage switch cabinet on-line monitoring device

Info

Publication number: CN202453101U
Application number: CN2012200313515U
Authority: CN
Inventors: 韩会涛; 刘庆文
Original assignee: LAIWU KETAI POWER-TECH CO LTD
Current assignee: LAIWU KETAI POWER-TECH CO LTD
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-09-26
Anticipated expiration: 2022-01-17

Abstract

The utility model discloses a high voltage switch cabinet on-line monitoring device, and relates to the technical field of electric power on-line monitoring. The high voltage switch cabinet on-line monitoring device comprises a temperature acquisition module, a singlechip, a signal conversion module, a memorizer, a communication module and a power supply module, wherein the temperature acquisition module, the signal conversion module, the memorizer and the communication module are respectively connected with the singlechip through a bus; the signal conversion module is connected with an output end of the temperature acquisition module; the power supply module is connected with the singlechip through a power supply unit; the temperature acquisition module is a temperature transducer PT100; the power supply module comprises an induction electrification unit, a control unit, a protection unit and the power supply unit; and an analog signal acquired by the temperature acquisition module is stored and transmitted in a digital signal manner after passing through the signal conversion module. The communication module is in communication connection with the outside through using an RS485 interface, an MODBUS interface and an RFID ( radio frequency identification) communication unit, the real-time on-time monitoring of the temperature of a high voltage switch cabinet can be realized, and the temperature rise at the connection part of a contact and a bus bar in operation can be accurately uploaded.

Description

The high-tension switch cabinet on-Line Monitor Device

Technical field

The utility model relates to the electric power online monitoring technical field, relates in particular to a kind of intelligent high-pressure switch cubicle on-Line Monitor Device.

Background technology

Positions such as the contact in the high-tension switch cabinet and bus row junction can be because of wearing out or contact resistance is excessive generates heat in the long-time running process; The too high normal use that can influence switch cubicle of temperature; Can produce dangerous simultaneously to safety in production; Usually the temperature of these heating positions can't be monitored, and finally causes accident to take place thus, causes fire and large-area power outage; Solving high-tension switch cabinet contact and bus row junction problems of excessive heat is to stop the key that this type of accident takes place; And realize that on-line temperature monitoring is the important means that guarantees the high-tension switch cabinet safe operation, existing on-line monitoring technique can not accurately be judged for the trend of high-tension switch cabinet temperature, is prone to produce erroneous judgement.

Summary of the invention

The purpose of the utility model is to provide a kind of prior art shortcoming that overcomes, and provides a kind of simple in structure, and measuring accuracy is high, and antijamming capability is strong, high-tension switch cabinet on-Line Monitor Device easy for installation.

The utility model is achieved in that said high-tension switch cabinet on-Line Monitor Device comprises temperature collect module, single-chip microcomputer, signal conversion module, storer, communication module and power module; Said temperature collect module, signal conversion module, storer, communication module link to each other with single-chip microcomputer respectively through bus; Signal conversion module links to each other with the output terminal of temperature collect module; Power module links to each other with single-chip microcomputer through power supply unit.

Said temperature collect module is temperature sensor PT100; Said communication module comprises RS485 interface, MODBUS interface, RFID communication unit; Also connect output module on the said bus, the output terminal of output module is connected with indicator light circuit, and indicator light circuit comprises power light, codan lamp, transmission pilot lamp, temperature collect module pilot lamp; Said power module comprises induction power taking unit, control module, protected location and power supply unit, and control module links to each other with power supply unit through induction power taking unit; Power supply unit links to each other with single-chip microcomputer, and power supply unit is capacitor or lithium battery, and induction power taking unit is a current transformer.

Said temperature collect module, single-chip microcomputer, signal conversion module, storer, communication module and power module all are positioned at same housing.

The advantage of the utility model is: temperature collect module adopts PT100, and the simulating signal that collects is stored and transmitted with digital signaling after signal conversion module, and temperature measurement accuracy can reach 0.2 ℃, and measuring accuracy is high, has improved antijamming capability; Through power light, codan lamp, transmission pilot lamp and temperature acquisition pilot lamp, can judge the duty of each module accurately, safe and reliable; Power module adopts the induction way to take power, and has increased protected location, can avoid owing to the influence of extraneous factors such as thunderbolt, excess current to the utility model, and is safe and reliable; The communication module of the utility model setting utilizes RS485 interface, MODBUS interface, RFID communication unit to be connected with external communication; Realized the high-tension switch cabinet temperature is carried out real time on-line monitoring, can upload the temperature rise of contact in service and bus row junction exactly.

Description of drawings

Accompanying drawing 1 is the utility model structural representation;

Among the figure: 1. communication module, 2. single-chip microcomputer, 3. storer, 4. bus, 5. output module; 6. indicator light circuit, 7. temperature collect module, 8. signal conversion module, 9. protected location; 10. control module, 11. induction power taking unit, 12. power supply units, 13. power modules.

Embodiment

The utility model is achieved in that said high-tension switch cabinet on-Line Monitor Device comprises temperature collect module (7), single-chip microcomputer (2), signal conversion module (8), storer (3), communication module (1) and power module (13); Said temperature collect module (7), storer (3), communication module (1), signal conversion module (8) link to each other with single-chip microcomputer (2) through bus (4); Signal conversion module (8) links to each other with the output terminal of temperature collect module (7); Power module (13) links to each other with single-chip microcomputer (2) through power supply unit (12).

Said temperature collect module (7) is temperature sensor PT100; Realization is to the collection and the monitoring of high-tension switch cabinet contact and bus row junction temperature; And the simulating signal that will monitor temperature is passed through signal conversion module (8) output temperature digital signal; Reduced the transmission of temperature analog signal and the error that external interference causes, made the measurement temperature reach 0.2 ℃, temperature collect module capable of using (7) is accurately judged the temperature rise trend of high-tension switch cabinet contact and bus row junction; Said signal conversion module (8) links to each other with single-chip microcomputer (2) through bus (4), and single-chip microcomputer (2) utilizes bus (4) transmission data and control signal.

Said temperature collect module (7), single-chip microcomputer (2), signal conversion module (8), storer (3), communication module (1), power module (13) all are positioned at same housing.Also connect output module (5) on the said bus (4); The output terminal of output module (5) is connected with indicator light circuit (6); Indicator light circuit (6) comprises power light, codan lamp, transmission pilot lamp, temperature collect module pilot lamp, and output module (5) receives the duty of respective modules, and shows corresponding state through indicator light circuit (6); The pilot lamp of indicator light circuit (6) is installed on the housing, and it is convenient to observe; Said single-chip microcomputer (2) interconnects through bus (4) and storer (3) and communication module (1); The temperature digital signal that single-chip microcomputer (2) receives and analytic signal modular converter (8) is exported; And with this signal storage (3) in storer; Be convenient to said digital signal is inquired about; Said communication module (1) comprises RS485 interface, MODBUS interface, RFID communication unit, and the communication module (1) that the utility model is provided with utilizes RS485 interface, MODBUS interface, RFID communication unit to be connected with external communication; Said single-chip microcomputer (2) is receiving after main frame reads signal; The temperature value of correspondence is read from storer (3); Transfer signals to main website through bus (4), communication module (1), single-chip microcomputer (2) can also be according to the connection to each module, to the corresponding status signal of output module (5) output; And through indicator light circuit (6) demonstration; Thereby realized the high-tension current temperature is carried out real time on-line monitoring, can report high-tension switch cabinet in service contact and bus row the temperature rise of junction exactly, for equipment safety operation provides reliable data foundation; When the measured point temperature surpasses preset value; To send alerting signal in time reminds the relevant personnel to take measures; The temperature monitoring operating software that is installed in city, district Surveillance center intuitively shows geographic distribution, contact temperature operational factor, warning information, history parameters etc. through forms such as figure, tables through man-machine interface; For decision-making level provides the most reliably data foundation, can remove a hidden danger, minimizing accident to greatest extent.

Said power module (13) adopts the induction way to take power, comprises induction power taking unit (11), control module (10), protected location (9) and power supply unit (12), and control module (10) links to each other with power supply unit (12) through induction power taking unit (11); Power supply unit (12) links to each other with single-chip microcomputer (2), and the purpose of control module (10) is that the electric current responded to of induction power taking unit (11) is controlled power supply unit (12), and power supply unit (12) is overcharged or overdischarge is protected; Power supply unit (12) is capacitor or lithium battery, and induction power taking unit (11) is a current transformer; Protected location (9) links to each other with power supply unit (12), and protected location (9) can be dash current holding circuit and surge voltage protection circuit.

Claims

1. high-tension switch cabinet on-Line Monitor Device, it is characterized in that: said high-tension switch cabinet on-Line Monitor Device comprises temperature collect module, single-chip microcomputer, signal conversion module, storer, communication module and power module; Said temperature collect module, signal conversion module, storer, communication module link to each other with single-chip microcomputer respectively through bus; Signal conversion module links to each other with the output terminal of temperature collect module; Power module links to each other with single-chip microcomputer through power supply unit.

2. high-tension switch cabinet on-Line Monitor Device according to claim 1 is characterized in that: said temperature collect module is temperature sensor PT100.

3. high-tension switch cabinet on-Line Monitor Device according to claim 1 is characterized in that: communication module comprises RS485 interface, MODBUS interface, RFID communication unit.

4. high-tension switch cabinet on-Line Monitor Device according to claim 1; It is characterized in that: also connect output module on the bus; The output terminal of output module is connected with indicator light circuit, and indicator light circuit comprises power light, codan lamp, transmission pilot lamp, temperature collect module pilot lamp.

5. high-tension switch cabinet on-Line Monitor Device according to claim 1 is characterized in that: power module comprises induction power taking unit, control module, protected location and power supply unit, and control module links to each other with power supply unit through induction power taking unit; Power supply unit links to each other with single-chip microcomputer, and power supply unit is capacitor or lithium battery, and induction power taking unit is a current transformer.

6. according to claim 1 or 2 or 3 or 4 or 5 described high-tension switch cabinet on-Line Monitor Device, it is characterized in that: temperature collect module, single-chip microcomputer, signal conversion module, storer, communication module and power module all are positioned at same housing.