CN203705053U - On-line monitoring system for temperature of electric power switch cabinet - Google Patents
On-line monitoring system for temperature of electric power switch cabinet Download PDFInfo
- Publication number
- CN203705053U CN203705053U CN201320648317.7U CN201320648317U CN203705053U CN 203705053 U CN203705053 U CN 203705053U CN 201320648317 U CN201320648317 U CN 201320648317U CN 203705053 U CN203705053 U CN 203705053U
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- temperature
- monitoring system
- switch cabinet
- power switch
- infrared probe
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Abstract
Provided is an on-line monitoring system for the temperature of an electric power switch cabinet. The on-line monitoring system comprises a temperature acquisition device connected with a data processing device, a temperature data display device and a power supply device, the temperature acquisition device is a non-contact infrared probe, the temperature measurement range of the infrared probe is from 0 DEG C to 350 DEG C, the data processing device comprises a processor, and the processor converts a temperature analog signal acquired by the infrared probe to a digital signal and transmits the digital signal to a digital display device to be displayed. According to the on-line monitoring system, the probe is employed to measure the temperature in a non-contact manner, harmful effects brought by the contact with high voltage are effectively prevented, and the reliability of the temperature monitoring is improved. The on-line monitoring system is applicable to the on-line monitoring of the operating temperature of various high voltage switch cabinets.
Description
Technical field
The utility model relates to a kind of on-line monitoring instrument, is specifically related to a kind of power switch cabinet temperature online monitoring system.
Technical background
Along with the modernization development of scientific-technical progress and industrial or agricultural, power consumption significantly rises, and mains supply security, reliability have been proposed to more and more higher requirement.Closed high-voltage switch cabinet, as important power equipment, plays vital effect to the normal electricity supply of enterprise.The failure rate of the heating aspect that large electric current cabinet a variety of causes in service causes is always high, high-current switch in operational process because inside contact loose contact hyperthermia and superheating causes that switch cubicle action is malfunctioning, burst power-off is even caught fire, and the accident of burning happens occasionally, and brings immeasurable economic loss to enterprise.For this reason, solve the bad problems of excessive heat causing of closed high-voltage switch cabinet contact, be the problem in the urgent need to address of the power equipment department of electric power enterprise and other enterprises always.Effective method is exactly that the temperature of high-tension switch cabinet contact is carried out to on-line monitoring.
Most on-line temperature monitoring is contact type temperature sensor, and is subject to the impact of high pressure larger as the sensor of core component, on-line monitoring poor reliability; Secondly, current on-line monitoring is used switch cubicle autonomous induction power supply, and this power supply prerequisite to be switch have larger working current, otherwise working power is bad, causes temperature measurement error larger.So current on-line monitoring instrument has very large defect in the time of practical application.
Summary of the invention
The purpose of this utility model is to provide a kind of power switch cabinet temperature online monitoring system, its solved in background technology cannot be effectively to high-tension switch cabinet working contact temperature carry out reliably, the technical matters of on-line monitoring accurately.
The technical solution of the utility model is:
A kind of power switch cabinet temperature online monitoring system, comprise the infrared probe that is arranged at inside switch cabinet, the data processing equipment being connected with infrared probe, the numeric display unit being connected with data processing equipment and supply unit, the temperature-measuring range of described infrared probe is 0 DEG C～200 DEG C; Described data processing equipment converts the temperature analog signal of infrared probe collection to digital signal, and is transferred to numeric display unit demonstration; Described data processing equipment also connects a warning device, in the time that dut temperature exceeds setting safe range, connects warning device and reports to the police.
Above-mentioned warning device comprises that one for arranging the key that arranges of safe range.
The mode that above-mentioned warning device is reported to the police is that buzzing warning is or/and pilot lamp warning.
Above-mentioned data processing equipment also comprises a communication interface, can be connected with pulpit computer by this communication interface, realizes remote monitoring.
Above-mentioned communication interface is RS-485 interface.
Above-mentioned infrared probe is answered near bus bar position detection range contact.
The utility model has the advantage of:
1, probe contactless temperature-measuring, effectively avoids contacting with high pressure the harmful effect bringing;
2, advanced circuit design, improves the reliability of temperature monitoring greatly.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Embodiment
Referring to Fig. 1, a kind of power switch cabinet temperature online monitoring system, comprises the temperature collecting device 2, numeric display unit 3 and the power supply 4 that are connected with data processing equipment 1, and temperature collecting device 2 is non-contact infrared probe, and its temperature-measuring range is 0 DEG C～200 DEG C; Data processing equipment 1 comprises a processor 11, and this processor 11 converts the temperature analog signal of infrared probe collection to digital signal, and is transferred to numeric display unit 3 and shows; Data processing equipment 1 also connects a warning device 5, and this device is also provided with power switch cabinet switchgear, in the time that warning device reports to the police that to exceed 30 seconds also unattended, automatically cuts off power switch cabinet switch.In the time that dut temperature exceeds the safe range of setting, warning device 5 is reported to the police; Infrared probe is six, detects respectively A, B, C three-phase turnover busbar and approach most the temperature of contact; It is to realize by being arranged at ADC chip in processor 11 that temperature analog signal converts digital signal to; Warning device 5 comprises that one arranges key 52 for what safe range was set; Processor 11 also comprises a communication interface 110, can be connected with pulpit computer by this communication interface 110, realizes remote monitoring, and communication interface 110 is RS-485 interface.
Infrared probe sensing point is the busbar that approaches contact position most.
When work, non-contact infrared probe detection A, B, C three-phase is near the temperature of contact place turnover busbar, obtain temperature analog signal, and be transferred on the processor 11 of data processing equipment 1, processor 11 is realized temperature analog signal and is converted digital signal to by being arranged at ADC chip in processor 11, and be transferred to numeric display unit 3 and show, in this process, processor 11 judges whether the value of dut temperature exceeds the preset value of warning device 5, if exceed preset value, command switch 51 closures, connecting warning device 5 reports to the police, send buzzing warning and pilot lamp flicker warning simultaneously.The utility model can also can be connected with pulpit computer by the RS-485 interface being arranged on processor 11, realizes remote monitoring.
installation of the present utility model is as follows:
Open the rectangle window of 160 ╳ 90 at the suitable vacant place of switch cubicle backplate, open according to mounting hole on products panel taper that four diameters are 5mm and install emptyly, product is installed on switch cabinet panel with flat head screw; Six probes are aimed at respectively to switch A, B, C three-phase turnover busbar to be installed on after switch cubicle line row on paranotum the most nearby apart from contact; the mounting means of each probe is to open at the corresponding mounting points of backboard place the hole that diameter is 12mm, after probe protection cylinder is penetrated, screws down.
Claims (6)
1. a power switch cabinet temperature online monitoring system, comprise the infrared probe that is arranged at inside switch cabinet, the data processing equipment being connected with infrared probe, the numeric display unit being connected with data processing equipment and supply unit, is characterized in that: the temperature-measuring range of described infrared probe is 0 DEG C～200 DEG C; Described data processing equipment converts the temperature analog signal of infrared probe collection to digital signal, and is transferred to numeric display unit demonstration; Described data processing equipment also connects a warning device.
2. power switch cabinet temperature online monitoring system according to claim 1, is characterized in that: described warning device comprises that one for arranging the key that arranges of safe range.
3. power switch cabinet temperature online monitoring system according to claim 2, is characterized in that: the mode that described warning device is reported to the police is buzzing warning or/and pilot lamp is reported to the police.
4. power switch cabinet temperature online monitoring system according to claim 3, is characterized in that: described data processing equipment also comprises a communication interface, can be connected with pulpit computer by this communication interface, realizes remote monitoring.
5. power switch cabinet temperature online monitoring system according to claim 4, is characterized in that: described communication interface is RS-485 interface.
6. power switch cabinet temperature online monitoring system according to claim 1, is characterized in that: described infrared probe is answered near bus bar position detection range contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648317.7U CN203705053U (en) | 2013-10-21 | 2013-10-21 | On-line monitoring system for temperature of electric power switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648317.7U CN203705053U (en) | 2013-10-21 | 2013-10-21 | On-line monitoring system for temperature of electric power switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705053U true CN203705053U (en) | 2014-07-09 |
Family
ID=51055476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320648317.7U Expired - Fee Related CN203705053U (en) | 2013-10-21 | 2013-10-21 | On-line monitoring system for temperature of electric power switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228713A (en) * | 2016-03-25 | 2017-10-03 | 郑州海威光电科技有限公司 | The fault monitoring device and monitoring method of a kind of generator carbon brush |
-
2013
- 2013-10-21 CN CN201320648317.7U patent/CN203705053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228713A (en) * | 2016-03-25 | 2017-10-03 | 郑州海威光电科技有限公司 | The fault monitoring device and monitoring method of a kind of generator carbon brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20181021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |