CN103076102A - Main loop overheat automatic protection and fault diagnosis device for switch cabinet - Google Patents
Main loop overheat automatic protection and fault diagnosis device for switch cabinet Download PDFInfo
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- CN103076102A CN103076102A CN2013100027052A CN201310002705A CN103076102A CN 103076102 A CN103076102 A CN 103076102A CN 2013100027052 A CN2013100027052 A CN 2013100027052A CN 201310002705 A CN201310002705 A CN 201310002705A CN 103076102 A CN103076102 A CN 103076102A
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- automatic protection
- switch cabinet
- main loop
- major loop
- wireless module
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Abstract
The invention discloses a main loop overheat automatic protection and fault diagnosis device for a switch cabinet. The main loop overheat automatic protection and fault diagnosis device comprises a switch cabinet, wherein a temperature sensor in which a wireless module is embedded is arranged on a copper bar close to the static contact of a circuit breaker of each phase of main loop in the switch cabinet respectively; the switch cabinet is further provided with a main loop overheat automatic protection and fault diagnosis device consisting of a singlechip, a fan control circuit and a plurality of wireless modules; and the wireless modules on the singlechip are communicated with the wireless module embedded into each temperature sensor. According to the main loop overheat automatic protection and fault diagnosis device, over-temperature failures of the switch cabinet can be reflected rapidly, and the temperature of the switch cabinet is lowered effectively; and meanwhile, over-temperature failures in the switch cabinet can be diagnosed, so that great convenience is brought to maintenance work.
Description
Technical field
The present invention relates to the switch cubicle field, be specially the overheated automatic protection in a kind of switch cabinet main loop and device for discriminating failure.
Background technology
Switch cubicle is a kind of power equipment commonly used, is widely used in the power domain.There is the problem of each phase major loop excess Temperature in the cabinet in switch cubicle when using, generally be to realize lowering the temperature by the blower fan in the switch cubicle.Prior art switch cubicle function singleness only can be carried out temperature monitoring, and the cooling of control blower fan need be carried out in addition, and can't realize the differentiation to each phase major loop excess temperature fault in the switch cubicle.
Summary of the invention
The purpose of this invention is to provide the overheated automatic protection in a kind of switch cabinet main loop and device for discriminating failure, simple to solve prior art switch cubicle function, can't realize the problem to each phase major loop excess temperature fault distinguishing.
In order to achieve the above object, the technical solution adopted in the present invention is:
The overheated automatic protection in switch cabinet main loop and device for discriminating failure; include switch cubicle; be provided with the three-phase major loop in the switch cubicle; blower fan; it is characterized in that: in the interior three-phase major loop of switch cubicle; the copper bar place is provided with respectively the temperature sensor of built-in with wireless module near the circuit breaker static contact of every phase major loop; also be provided with the overheated automatic protection of major loop and device for discriminating failure on the switch cubicle; the overheated automatic protection of described major loop and device for discriminating failure are by single-chip microcomputer and the draught fan control circuit that accesses respectively single-chip microcomputer; a plurality of wireless modules consist of; described blower fan access draught fan control circuit, the built-in wireless module formation communication of wireless module and each temperature sensor is connected on the described single-chip microcomputer.
The overheated automatic protection in described switch cabinet main loop and device for discriminating failure is characterized in that: in the overheated automatic protection of described major loop and the device for discriminating failure, also have access to warning circuit on the single-chip microcomputer.
The overheated automatic protection in described switch cabinet main loop and device for discriminating failure; it is characterized in that: the cable splice place of three-phase major loop also is provided with the temperature sensor of built-in with wireless module in the described switch cubicle, is connected with on the described single-chip microcomputer with cable splice place temperature sensor and forms the wireless module that communication is connected.
Among the present invention, near the measured value of the temperature sensor at the copper bar place of three-phase major loop circuit breaker static contact is sent into respectively in the single-chip microcomputer and is obtained the three-phase current magnitude of voltage with the comprehensive protector communication and process.Single-chip Controlling draught fan control circuit driving blower fan is lowered the temperature when excess Temperature, and the control warning circuit is reported to the police.Simultaneously, single-chip microcomputer is differentiated: if the whole excess Temperatures of three-phase major loop, the three-phase electricity flow valuve is excessive, then the single-chip microcomputer differentiation is that load is excessive, if single-phase major loop is overheated, the three-phase electricity flow valuve is normal, and then to differentiate be that this phase major loop isolating switch dynamic/static contact, busbar lap-joint, cable splice place may go wrong to single-chip microcomputer, can highlyer according to the temperature sensor measurement value at close which place differentiate, corresponding discriminant information can be shown at single-chip microcomputer access display.
The present invention is integrated in one temperature monitoring and air-blower control, can react fast switch cubicle excess temperature fault, and effectively reduce switch cabinet temperature.Simultaneously the present invention also can differentiate excess temperature fault in the switch cubicle, greatly facilitates maintenance job.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is schematic block circuit diagram of the present invention.
Embodiment
As shown in Figure 1 and Figure 2.The overheated automatic protection in switch cabinet main loop and device for discriminating failure; include switch cubicle 1; be provided with the three-phase major loop in the switch cubicle 1; blower fan; in the switch cubicle 1 interior three-phase major loop; the copper bar place is provided with respectively the temperature sensor 2 of built-in with wireless module near the circuit breaker static contact of every phase major loop; also be provided with the overheated automatic protection of major loop and device for discriminating failure 3 on the switch cubicle 1; the overheated automatic protection of major loop and device for discriminating failure 3 are by single-chip microcomputer and the draught fan control circuit that accesses respectively single-chip microcomputer; a plurality of wireless modules consist of; blower fan access draught fan control circuit, the 2 built-in wireless module formation communications of wireless module and each temperature sensor are connected on the single-chip microcomputer.
In the overheated automatic protection of major loop and the device for discriminating failure, also have access to warning circuit on the single-chip microcomputer.
The cable splice place of three-phase major loop also is provided with the temperature sensor 4 of built-in with wireless module in the switch cubicle, is connected with on the single-chip microcomputer with cable splice place temperature sensor 4 and forms the wireless module that communication is connected.
Claims (3)
1. the overheated automatic protection in switch cabinet main loop and device for discriminating failure; include switch cubicle; be provided with the three-phase major loop in the switch cubicle; blower fan; it is characterized in that: in the interior three-phase major loop of switch cubicle; the copper bar place is provided with respectively the temperature sensor of built-in with wireless module near the circuit breaker static contact of every phase major loop; also be provided with the overheated automatic protection of major loop and device for discriminating failure on the switch cubicle; the overheated automatic protection of described major loop and device for discriminating failure are by single-chip microcomputer and the draught fan control circuit that accesses respectively single-chip microcomputer; a plurality of wireless modules consist of; described blower fan access draught fan control circuit, the built-in wireless module formation communication of wireless module and each temperature sensor is connected on the described single-chip microcomputer.
2. the overheated automatic protection in switch cabinet main loop according to claim 1 and device for discriminating failure is characterized in that: in the overheated automatic protection of described major loop and the device for discriminating failure, also have access to warning circuit on the single-chip microcomputer.
3. the overheated automatic protection in switch cabinet main loop according to claim 1 and device for discriminating failure; it is characterized in that: the cable splice place of three-phase major loop also is provided with the temperature sensor of built-in with wireless module in the described switch cubicle, is connected with on the described single-chip microcomputer with cable splice place temperature sensor and forms the wireless module that communication is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100027052A CN103076102A (en) | 2013-01-05 | 2013-01-05 | Main loop overheat automatic protection and fault diagnosis device for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100027052A CN103076102A (en) | 2013-01-05 | 2013-01-05 | Main loop overheat automatic protection and fault diagnosis device for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103076102A true CN103076102A (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100027052A Pending CN103076102A (en) | 2013-01-05 | 2013-01-05 | Main loop overheat automatic protection and fault diagnosis device for switch cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN103076102A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019914A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Special temperature image alarming system for switch cabinet |
| CN105116257A (en) * | 2015-08-26 | 2015-12-02 | 芜湖市凯鑫避雷器有限责任公司 | Switch cabinet system used for fuse type isolation switch |
| CN113612148A (en) * | 2021-08-04 | 2021-11-05 | 句容市华容电器有限公司 | Contact box and high-voltage switch cabinet provided with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964130A (en) * | 2009-07-22 | 2011-02-02 | 顾海勇 | Temperature measuring type electrical fire monitoring system |
| CN202433785U (en) * | 2012-01-05 | 2012-09-12 | 青州中联水泥有限公司 | High-voltage switch contact temperature measuring device |
| CN203100909U (en) * | 2013-01-05 | 2013-07-31 | 淮北万里龙波电气有限公司 | Overheating automatic protection and fault discrimination apparatus for switch cabinet main loop |
-
2013
- 2013-01-05 CN CN2013100027052A patent/CN103076102A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964130A (en) * | 2009-07-22 | 2011-02-02 | 顾海勇 | Temperature measuring type electrical fire monitoring system |
| CN202433785U (en) * | 2012-01-05 | 2012-09-12 | 青州中联水泥有限公司 | High-voltage switch contact temperature measuring device |
| CN203100909U (en) * | 2013-01-05 | 2013-07-31 | 淮北万里龙波电气有限公司 | Overheating automatic protection and fault discrimination apparatus for switch cabinet main loop |
Non-Patent Citations (2)
| Title |
|---|
| 无线龙: "《现代无线传感网概论》", 31 August 2011, 冶金工业出版社 * |
| 艾茂珍: "变电站高压开关柜实时在线温度监测系统软件设计", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019914A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Special temperature image alarming system for switch cabinet |
| CN105116257A (en) * | 2015-08-26 | 2015-12-02 | 芜湖市凯鑫避雷器有限责任公司 | Switch cabinet system used for fuse type isolation switch |
| CN113612148A (en) * | 2021-08-04 | 2021-11-05 | 句容市华容电器有限公司 | Contact box and high-voltage switch cabinet provided with same |
| CN113612148B (en) * | 2021-08-04 | 2023-10-20 | 河北华能源电力设备有限公司 | Contact box and high-voltage switch cabinet provided with same |
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Application publication date: 20130501 |