CN103308198A - Temperature-controlled switch cabinet wireless overheat alarm device - Google Patents
Temperature-controlled switch cabinet wireless overheat alarm device Download PDFInfo
- Publication number
- CN103308198A CN103308198A CN 201310241149 CN201310241149A CN103308198A CN 103308198 A CN103308198 A CN 103308198A CN 201310241149 CN201310241149 CN 201310241149 CN 201310241149 A CN201310241149 A CN 201310241149A CN 103308198 A CN103308198 A CN 103308198A
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- signal
- temperature
- alarm device
- equipment
- switch cabinet
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- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 210000002445 nipple Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 101150047356 dec-1 gene Proteins 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Thermally Actuated Switches (AREA)
Abstract
The invention relates to a temperature-controlled switch cabinet wireless overheat alarm device which is composed of a signal sending circuit and a signal receiving circuit. The signal sending circuit comprises a double-metal-piece switch, a power supply and a signal sending unit. Double metal pieces of the double-metal-piece switch directly contact with a to-be-tested object. The signal receiving circuit comprises a signal receiver, a loudspeaker and a power supply. The temperature-controlled switch cabinet wireless overheat alarm device is small in size and convenient to mount, the problem of incapability of real-time monitoring on contact portions of electric equipment is effectively solved, online monitoring on the electric equipment is realized, damages to the equipment caused by overheat of the equipment during change in load due to various reasons are avoided, reliability and safety of power grid operation are effectively improved, and improvement and development of online monitoring technology of a power system are facilitated.
Description
Technical field
The present invention relates to the wireless overtemperature alarm device of a kind of Temperature Control Type switch cubicle.
Background technology
In recent years, increase along with transformer station's load, the Frequent Accidents that causes because of switch cubicle nipple heating, the power equipment connecting portion, because the cold and hot variation of weather, equipment Foundations change, processing technology, equipment is subject to environmental pollution, serious overload operation, contact oxidation, fastening bolt is loosening, the problems such as contact and bus bar junction are aging cause crimping not tight, pressure is inadequate, contact partly changes, finally cause contact resistance to increase, when electric current passes through, temperature raises, thereby cause ageing equipment, insulation descends, and serious can also trigger arc short circuit, burns out equipment, enlarge the device damage scope, reduce service life of equipment, even easily cause primary equipment blast on fire, especially movable disconnecting link moving, the static contact part is more serious, failure rate is high, and these all at every moment threaten the safe operation of power equipment.According to incompletely statistics, present domestic numerous Utilities Electric Co.s, genco is such as Guangdong, Zhejiang, Hebei, Sichuan, Liaoning, Gansu, Jiangxi, switch cabinet of converting station has all appearred to some extent Deng provinces and cities, enclosed busbar, disconnector, the first-class equipment of cable causes temperature variation unusual owing to insulation ag(e)ing or loose contact, and then accidents caused phenomenon, the switch cubicle nipple of trend in Yangquan City Yu County 220kv transformer station in 2003 and the north suburb, Datong District 220kv transformer station in 2004 is owing to contacting bad long-term fever, in time do not find, finally cause aluminium row to burn the distortion arc short-circuit, cause major accident twice, cause large-area power-cuts, directly and indirectly economic loss all reaches up to ten million units.In the recent period my office also supervention give birth to the equipment forced outage maintenance (nipple generates heat in 3501 cabinets that the storehouse on line that Dec 1, the garden became and Dec 7, Ri Wanhong became) that the heating of two causes heating switch cubicle nipple causes, the switch cubicle nipple fever phenomenon of power equipment has caused the great attention of operation power department.
Because these equipment are high voltage alive equipments in the switch cubicle, whenever relatively and not all have very high voltage between the homophase, and structure is narrow and small, existing temp measuring method can't carry out the comprehensive thermometric of inside switch cabinet, finds so that heat generating spot inconvenience detects and is difficult to.
Summary of the invention
But the object of the invention is to propose the wireless overtemperature alarm device of Temperature Control Type switch cubicle of power equipment ruuning situation in a kind of Real-Time Monitoring switch cubicle.
The object of the present invention is achieved like this: the Temperature Control Type switch cubicle is wireless, and the overtemperature alarm device is comprised of signal sending circuit and signal receiving circuit, signal sending circuit comprises a bimetal plate temperature controling switch, and power supply and signal transmitting unit, the bimetallic strip of bimetal plate temperature controling switch directly contacts with testee, signal receiving circuit comprises a signal receiver, and loudspeaker and power supply.
Owing to implementing technique scheme, volume of the present invention is little, easy for installation, effectively solved the problem that the power equipment contact site can't Real-Time Monitoring, accomplish the on-line monitoring to power equipment, prevent because many reasons causes apparatus overheat, cause damage of equipment when load variations, it has improved reliability, the security of operation of power networks effectively, is conducive to improving and development of electric system on-line monitoring technique.
Description of drawings: concrete structure of the present invention is provided by following drawings and Examples:
Fig. 1 is the wireless overtemperature alarm device of Temperature Control Type switch cubicle circuit diagram.
Legend: 1, signal sending circuit, 2, bimetal plate temperature controling switch, 3, signal transmitting unit, 4, signal receiver, 5, signal receiving circuit.
Embodiment:
The present invention is not subjected to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
Embodiment
:As shown in Figure 1, the Temperature Control Type switch cubicle is wireless, and the overtemperature alarm device is comprised of signal sending circuit 1 and signal receiving circuit 5, signal sending circuit 1 comprises a bimetal plate temperature controling switch 2, and power supply and signal transmitting unit 3, the bimetallic strip of bimetal plate temperature controling switch 2 directly contacts with testee.Bimetallic strip is in off-state when normal in the switch cubicle.When the switch in-cabinet temperature is increased to the operating temperature value, bimetallic strip is heated and produces internal stress and the closing contact that moves rapidly, and the radio transmitter in the connection signal transmitting element 3 sends the overtemperature alarm signal, radio transmitter is prior art, at this its circuit is not described in detail.Signal receiving circuit 2 comprises a signal receiver 4 that sends the overtemperature alarm signal in order to receive signal transmitting unit 3, and loudspeaker and power supply.Wherein bimetal plate temperature controling switch also is prior art, and its circuit and mechanism are not described in detail.
Power acquisition lithium ion battery: for sensor provides power supply.Be in off-state owing to bimetallic strip as the temperature-sensing element contact in the normal temperature situation, probe power disconnects, and battery is not powered, not power consumption, (can oneself set 90 degree or 130 degree) when only having temperature to be increased to the operating temperature value, bimetallic element is heated and produces internal stress and rapidly action, and closing contact is connected radio transmitter, send the overtemperature alarm signal, therefore the miniature lithium ion battery is adopted in very power saving, can use continuously more than 5 years.I have also designed a fritter solar energy charging battery in addition, utilize the cabinet intraoral illumination just can charge online.Do not have a power failure and change battery or charging.
Signal receiver 4 adopts the wireless temperature alarm receiver: the wireless signal that is used for receiving the radio temperature sensor emission, can receive the alerting signal that 256 road radio temperature sensors send, the wireless receiving distance is 1 kilometer, has high reliability and security.The digital decoding technique guarantee reliability of wireless digital transmission.Can and telephone connection net, but automatic poking was made a phone call after temperature beyond limit was reported to the police, or sent the temperature beyond limit alarming short message, and the operations staff can be grasped exactly in time to the switch cubicle connector temperature is out-of-limit.Price only has ten parts of other producers, and cheap price more can make it can widely apply popularization.
Above technical characterictic has consisted of most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs inessential technical characterictic, satisfies the needs of different situations.
Claims (1)
1. wireless overtemperature alarm device of Temperature Control Type switch cubicle, it is characterized in that: it is comprised of signal sending circuit and signal receiving circuit, signal sending circuit comprises a bimetal plate temperature controling switch, and power supply and signal transmitting unit, the bimetallic strip of bimetal plate temperature controling switch directly contacts with testee, signal receiving circuit comprises a signal receiver, and loudspeaker and power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310241149 CN103308198A (en) | 2013-06-18 | 2013-06-18 | Temperature-controlled switch cabinet wireless overheat alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310241149 CN103308198A (en) | 2013-06-18 | 2013-06-18 | Temperature-controlled switch cabinet wireless overheat alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103308198A true CN103308198A (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310241149 Pending CN103308198A (en) | 2013-06-18 | 2013-06-18 | Temperature-controlled switch cabinet wireless overheat alarm device |
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| Country | Link |
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| CN (1) | CN103308198A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269030A (en) * | 2014-09-25 | 2015-01-07 | 杨柳青 | Fuel gas alarm device with overtemperature detecting function |
| CN105938019A (en) * | 2016-07-01 | 2016-09-14 | 河北箱变电器有限公司 | Power system temperature monitoring device |
| CN117516733A (en) * | 2024-01-08 | 2024-02-06 | 国网辽宁省电力有限公司抚顺供电公司 | Temperature monitoring alarm device and method for electric power cabinet |
-
2013
- 2013-06-18 CN CN 201310241149 patent/CN103308198A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269030A (en) * | 2014-09-25 | 2015-01-07 | 杨柳青 | Fuel gas alarm device with overtemperature detecting function |
| CN105938019A (en) * | 2016-07-01 | 2016-09-14 | 河北箱变电器有限公司 | Power system temperature monitoring device |
| CN117516733A (en) * | 2024-01-08 | 2024-02-06 | 国网辽宁省电力有限公司抚顺供电公司 | Temperature monitoring alarm device and method for electric power cabinet |
| CN117516733B (en) * | 2024-01-08 | 2024-03-08 | 国网辽宁省电力有限公司抚顺供电公司 | Temperature monitoring alarm device and method for electric power cabinet |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |