CN203432691U - A dry-type transformer temperature online monitoring system - Google Patents
A dry-type transformer temperature online monitoring system Download PDFInfo
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- CN203432691U CN203432691U CN201320548076.9U CN201320548076U CN203432691U CN 203432691 U CN203432691 U CN 203432691U CN 201320548076 U CN201320548076 U CN 201320548076U CN 203432691 U CN203432691 U CN 203432691U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000009529 body temperature measurement Methods 0.000 abstract description 17
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- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 241001391944 Commicarpus scandens Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及变压器，特别是涉及一种干式变压器温度在线监测系统。The utility model relates to a transformer, in particular to an on-line temperature monitoring system for a dry-type transformer.
背景技术Background technique
随着城市用电负荷不断增加，城网区域性变电所越来越深入城市中心区、居民小区、大中型厂矿等负荷中心，大容量的区域供电干式电力变压器获得广泛应用。随着国家对防火安全性、变压器运行寿命终结后废弃物质的降解处理等环保要求的提高，干式变压器以其在环保安全方面的优势，越来越受广大用户的欢迎。With the continuous increase of urban electricity load, the regional substations of the urban network are getting deeper and deeper into the load centers such as urban central areas, residential areas, large and medium-sized factories and mines, and large-capacity regional power supply dry-type power transformers have been widely used. With the improvement of the country's environmental protection requirements for fire safety and the degradation of waste materials after the end of the transformer's operating life, dry-type transformers are becoming more and more popular among users due to their advantages in environmental protection and safety.
干式变压器的安全运行和使用寿命，很大程度上取决于变压器绕组绝缘的安全可靠。绕组温度超过绝缘耐受温度使绝缘被破坏，是导致变压器不能正常工作的主要原因之一，因此对变压器运行温度的监测是十分重要的。The safe operation and service life of dry-type transformers depend largely on the safety and reliability of transformer winding insulation. If the winding temperature exceeds the insulation tolerance temperature and the insulation is damaged, it is one of the main reasons for the transformer not to work normally. Therefore, it is very important to monitor the operating temperature of the transformer.
目前，对干式变压器进行温度监测的方法有很多种，主要包括其自带的温度控制器、红外测温器、光纤测温器、有源无线测温器等。At present, there are many methods for temperature monitoring of dry-type transformers, mainly including their own temperature controllers, infrared temperature detectors, optical fiber temperature detectors, active wireless temperature detectors, etc.
温控器主要数字显示，不能直接观察变化，且安装在现场复杂的电磁环境中，操控复杂。The main digital display of the temperature controller cannot directly observe the changes, and it is installed in a complex electromagnetic environment on site, so the operation is complicated.
红外测温为非接触式测温，易受环境及周围的电磁场干扰，另外干式变压器的空间非常狭小，无法安装红外测温探头，要求被测量点能够在视野内并无遮掩，并且表面干净以确保准确性。Infrared temperature measurement is a non-contact temperature measurement, which is easily disturbed by the environment and the surrounding electromagnetic field. In addition, the space of the dry-type transformer is very small, and the infrared temperature measurement probe cannot be installed. to ensure accuracy.
1)光纤温度传感器采用光导纤维传输温度信号，光导纤维具有优异的绝缘性能，然而，光纤具有易折，易断、不耐高温等特性。积累灰尘后易导致光纤沿面放电从而使绝缘性降低。另外，光纤测温的成本也相对较高。1) The optical fiber temperature sensor uses optical fibers to transmit temperature signals. Optical fibers have excellent insulation properties. However, optical fibers are easy to break, easy to break, and not resistant to high temperatures. Accumulated dust will easily lead to discharge along the surface of the optical fiber and reduce the insulation. In addition, the cost of optical fiber temperature measurement is relatively high.
2)有源的无线温度传感器尺寸通常相对较大并且需经常更换电池，系统维护成本较高。同时，电池不适于在高温状态下工作，特别是高于150℃的工作环境。2) Active wireless temperature sensors are usually relatively large in size and require frequent battery replacement, resulting in high system maintenance costs. At the same time, the battery is not suitable for working in a high temperature state, especially in a working environment higher than 150°C.
发明内容Contents of the invention
本实用新型的目的在于克服现有技术中存在的不足，提供一种不仅可实现电气绝缘，而且可准确地显示现场的数据变化情况的干式变压器温度在线监测系统。The purpose of the utility model is to overcome the deficiencies in the prior art, and provide an online dry-type transformer temperature monitoring system that can not only realize electrical insulation, but also accurately display the data changes on site.
本实用新型设有干式变压器、温度采集器、测温主控终端、远程监控系统，所述干式变压器设有SAW温度传感器，所述SAW温度传感器设有接收和发射射频信号的天线；所述温度采集器也设有接收和发射射频信号的天线；所述远程监控系统通过通讯线缆与测温主控终端相连，所述测温主控终端通过带天线的无线接收模块与温度采集器相连。The utility model is provided with a dry-type transformer, a temperature collector, a main control terminal for temperature measurement, and a remote monitoring system. The dry-type transformer is provided with a SAW temperature sensor, and the SAW temperature sensor is provided with an antenna for receiving and emitting radio frequency signals; The temperature collector is also provided with an antenna for receiving and transmitting radio frequency signals; the remote monitoring system is connected to the temperature measurement main control terminal through a communication cable, and the temperature measurement main control terminal is connected to the temperature collector through a wireless receiving module with an antenna. connected.
所述温度采集器可设有至少1个，SAW温度传感器也可设有至少1个。There may be at least one temperature collector, and at least one SAW temperature sensor may also be provided.
所述SAW温度传感器实时采集干式变压器各相及铁心温度，经所述温度采集器处理后，由所述带天线的无线接收模块发送至所述测温主控终端。The SAW temperature sensor collects the temperature of each phase and iron core of the dry-type transformer in real time, and after being processed by the temperature collector, it is sent to the temperature measurement main control terminal by the wireless receiving module with antenna.
所述测温主控终端将干式变压器的温度信息通过RS485及标准的通信规约与所述远程监控系统接口。The temperature measurement main control terminal interfaces the temperature information of the dry-type transformer with the remote monitoring system through RS485 and standard communication protocols.
SAW传感器采用被动感应方式，无需电池驱动，减少了电池更换带来的维护成本，同时不会对生态环境造成影响。无线的温度采样方式无需在被测点或相关支撑结构上连线，传感器与接收设备之间无电气联系，从而实现了高压隔离，保障设备安全运行。无源无线温度传感器体积小且与采集器之间数据无线传输，安装方便灵活。SAW传感器的价格较其他传统测温方式较低，同时，无源无线的工作方式令本系统的安装、维护成本大大降低。The SAW sensor adopts a passive sensing method without battery drive, which reduces the maintenance cost caused by battery replacement and will not affect the ecological environment. The wireless temperature sampling method does not need to be connected to the measured point or the relevant supporting structure, and there is no electrical connection between the sensor and the receiving device, thereby realizing high-voltage isolation and ensuring the safe operation of the device. The passive wireless temperature sensor is small in size and wirelessly transmits data with the collector, which is convenient and flexible to install. The price of the SAW sensor is lower than other traditional temperature measurement methods. At the same time, the passive wireless working method greatly reduces the installation and maintenance costs of the system.
附图说明Description of drawings
图1为本实用新型实施例的结构组成示意图。Fig. 1 is a schematic diagram of the structure and composition of an embodiment of the utility model.
具体实施方式Detailed ways
参见图1，本实用新型实施例设有干式变压器、温度采集器1、测温主控终端6、远程监控系统8，所述干式变压器设有SAW温度传感器2，所述SAW温度传感器2设有接收和发射射频信号的天线3；所述温度采集器1也设有接收和发射射频信号的天线4；所述远程监控系统8通过通讯线缆7与测温主控终端6相连，所述测温主控终端6通过带天线的无线接收模块5与温度采集器1相连。Referring to Fig. 1, the utility model embodiment is provided with dry-type transformer, temperature collector 1, temperature measuring
所述温度采集器1设有3个，SAW温度传感器2也设有3个，相应接收和发射射频信号的天线3和接收和发射射频信号的天线4均设有3根。There are three temperature collectors 1, three
所述SAW温度传感器2实时采集干式变压器各相及铁心温度，经所述温度采集器处理后，由所述带天线的无线接收模块发送至所述测温主控终端。The
所述测温主控终端将干式变压器的温度信息通过RS485及标准的通信规约与所述远程监控系统接口。The temperature measurement main control terminal interfaces the temperature information of the dry-type transformer with the remote monitoring system through RS485 and standard communication protocols.
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| CN201320548076.9U CN203432691U (en) | 2013-09-04 | 2013-09-04 | A dry-type transformer temperature online monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296859A (en) * | 2014-10-15 | 2015-01-21 | 北京交大创新科技中心 | Monitoring device for vibration and temperature state of ultra-high voltage power transformer in operation |
| CN104965542A (en) * | 2015-07-08 | 2015-10-07 | 南京科睿博电气科技有限公司 | Manager-containing passive wireless temperature measuring device |
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN107909762A (en) * | 2017-11-30 | 2018-04-13 | 国网福建省电力有限公司 | 500kV transformer fire protection alarm systems based on wireless and passive temperature sensor |
| WO2019140643A1 (en) * | 2018-01-19 | 2019-07-25 | Abb Schweiz Ag | Apparatus, system and method for temperature measurement for dry-type transformer |
-
2013
- 2013-09-04 CN CN201320548076.9U patent/CN203432691U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296859A (en) * | 2014-10-15 | 2015-01-21 | 北京交大创新科技中心 | Monitoring device for vibration and temperature state of ultra-high voltage power transformer in operation |
| CN104965542A (en) * | 2015-07-08 | 2015-10-07 | 南京科睿博电气科技有限公司 | Manager-containing passive wireless temperature measuring device |
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN107909762A (en) * | 2017-11-30 | 2018-04-13 | 国网福建省电力有限公司 | 500kV transformer fire protection alarm systems based on wireless and passive temperature sensor |
| WO2019140643A1 (en) * | 2018-01-19 | 2019-07-25 | Abb Schweiz Ag | Apparatus, system and method for temperature measurement for dry-type transformer |
| CN111684501A (en) * | 2018-01-19 | 2020-09-18 | Abb电网瑞士股份公司 | Apparatus, system and method for temperature measurement of dry-type transformers |
| US11835392B2 (en) | 2018-01-19 | 2023-12-05 | Hitachi Energy Ltd | Apparatus, system and method for temperature measurement for dry-type transformer |
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Granted publication date: 20140212 Termination date: 20160904 |