CN202260397U - Distribution transformer neutral wire current overload remote monitoring and alarm device - Google Patents
Distribution transformer neutral wire current overload remote monitoring and alarm device Download PDFInfo
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- CN202260397U CN202260397U CN2011204228841U CN201120422884U CN202260397U CN 202260397 U CN202260397 U CN 202260397U CN 2011204228841 U CN2011204228841 U CN 2011204228841U CN 201120422884 U CN201120422884 U CN 201120422884U CN 202260397 U CN202260397 U CN 202260397U
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- control module
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- gsm control
- neutral line
- remote monitoring
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 24
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
本实用新型公开了一种配电变压器中性线电流过载远方监视报警装置，包括过电流信息采集动作装置、GSM控制模块，过电流信息采集动作装置串接在中性线上，过电流信息采集动作装置的信号输出端连接GSM控制模块的信号输入端，GSM控制模块放置在电表箱内，GSM控制模块的信号输出端与维护人员的手机进行通信。本实用新型能够自动监测中性线电流是否过载，过载时发出报警信号给维护人员，提醒维护人员及时到达现场，合理分配变压器三相负载，确保设备安全运行。
The utility model discloses a remote monitoring alarm device for overload current of neutral line of distribution transformer, comprising an overcurrent information collection action device and a GSM control module, wherein the overcurrent information collection action device is connected in series to the neutral line, the signal output end of the overcurrent information collection action device is connected to the signal input end of the GSM control module, the GSM control module is placed in the meter box, and the signal output end of the GSM control module communicates with the mobile phone of the maintenance personnel. The utility model can automatically monitor whether the neutral line current is overloaded, and send an alarm signal to the maintenance personnel when overloaded, so as to remind the maintenance personnel to arrive at the site in time, reasonably distribute the three-phase load of the transformer, and ensure the safe operation of the equipment.
Description
技术领域 technical field
本实用新型涉及配电变压器故障报警装置，尤其涉及一种配电变压器中性线电流过载远方监视报警装置。 The utility model relates to a fault alarm device for a distribution transformer, in particular to a remote monitoring and alarm device for a neutral line current overload of a distribution transformer.
背景技术 Background technique
目前, 我国目前低压供电系统采用三相四线制，居民生活电器用电接线最多的是相-地制，就是220V电压供电。在三相四线制供电系统中，中性线（零线）的作用就是当三相负载不对称时，消除中性点位移，使各相的电压维持在平衡状态，为居民提供质量合格的电能。由于三相四线制供电系统中的各相负荷往往很难绝对平衡，造成中性线中有电流通过，如果负载不平衡情况加剧，又加上中性线的截面积选择只有相线的二分之一，电流过大时将引起中性线断线。中性线断线的后果是有的相电压过高，可能烧毁电器，有的相电压过低，电器不能正常使用，给供电部门带来不必要的损失和纠纷，因此加强对配电变压器中性线过载的监测至关重要。 At present, my country's current low-voltage power supply system adopts a three-phase four-wire system, and the most electrical wiring for residential appliances is the phase-to-ground system, which is 220V voltage power supply. In the three-phase four-wire power supply system, the function of the neutral line (zero line) is to eliminate the neutral point displacement when the three-phase load is asymmetrical, so that the voltage of each phase is maintained in a balanced state, and to provide residents with qualified quality electricity. electrical energy. Because the loads of each phase in the three-phase four-wire power supply system are often difficult to be absolutely balanced, resulting in current passing through the neutral wire, if the load imbalance is aggravated, and the cross-sectional area of the neutral wire is only two When the current is too large, the neutral wire will be disconnected. The consequence of neutral line disconnection is that some phase voltages are too high, which may burn electrical appliances, and some phase voltages are too low, and electrical appliances cannot be used normally, which will bring unnecessary losses and disputes to the power supply department. The monitoring of the line overload is crucial. the
实用新型内容 Utility model content
本实用新型的目的是提供一种配电变压器中性线电流过载远方监视报警装置，能够在中性线承载电流过大时，向维护人员发告警信息。 The purpose of the utility model is to provide a remote monitoring and alarm device for neutral line current overload of distribution transformers, which can send alarm information to maintenance personnel when the neutral line carrying current is too large.
本实用新型采用下述技术方案：一种配电变压器中性线电流过载远方监视报警装置，包括过电流信息采集动作装置、GSM控制模块，过电流信息采集动作装置串接在中性线上，过电流信息采集动作装置的信号输出端连接GSM控制模块的信号输入端，GSM控制模块放置在电表箱内，GSM控制模块的信号输出端与维护人员的手机进行通信。 The utility model adopts the following technical scheme: a remote monitoring and alarm device for neutral line current overload of distribution transformers, including an over-current information collection action device and a GSM control module, and the over-current information collection action device is connected in series on the neutral line. The signal output end of the overcurrent information collection action device is connected to the signal input end of the GSM control module, which is placed in the meter box, and the signal output end of the GSM control module communicates with the mobile phone of the maintenance personnel.
所述的过电流信息采集动作装置为电流继电器，电流继电器的整定值为相线额定电流的四分之一，电流继电器的动合触点与GSM控制模块的信号输入端连接。 The action device for collecting overcurrent information is a current relay, the setting value of the current relay is 1/4 of the rated current of the phase line, and the moving contact of the current relay is connected with the signal input terminal of the GSM control module.
本实用新型配电变压器中性线电流过载远方监测报警装置，能够自动监测中性线电流是否过载，过载时发出报警信号给维护人员，提醒维护人员及时到达现场，合理分配变压器三相负载，确保设备安全运行。 The utility model has a remote monitoring and alarm device for neutral line current overload of distribution transformers, which can automatically monitor whether the neutral line current is overloaded, and send an alarm signal to maintenance personnel when overloaded, reminding maintenance personnel to arrive at the site in time, and reasonably distribute the three-phase load of the transformer to ensure The equipment operates safely.
附图说明 Description of drawings
图1为本实用新型的原理框图。 Fig. 1 is a functional block diagram of the utility model.
具体实施方式 Detailed ways
如图1所示，一种配电变压器中性线电流过载远方监视报警装置，包括电流继电器、GSM控制模块，电流继电器中的电流互感器LH串接在中性线N上，电流继电器的整定值为相线额定电流的四分之一，线圈LJ的动合触点与GSM控制模块的信号输入端连接，GSM控制模块放置在电表箱内，GSM控制模块的信号输出端与维护人员的手机进行通信。GSM短信控制模块是一种高端无线数传控制设备，采用SIEMENS工业级的GSM收发模块和高性能32 位处理器，通过GSM 网 SMS 服务功能实现无线的、长距离的（GSM 网络覆盖的地方） 数据传送控制。经在备用的配电变压器模拟试验，当人为接线导致负载严重不平衡，引起变压器中性线负载大于电流继电器整定值时，电流继电器的线圈LJ得电吸合，动合触点闭合启动GSM控制模块，GSM控制模块立即向预先置入的手机发送“XXX处配电变压器中性线过载，请处理”的告警信息，维护人员接到信息后及时进行处理。 As shown in Figure 1, a distribution transformer neutral wire current overload remote monitoring and alarm device includes a current relay and a GSM control module. The current transformer LH in the current relay is connected in series with the neutral wire N. The setting of the current relay The value is a quarter of the rated current of the phase line. The moving contact of the coil LJ is connected to the signal input terminal of the GSM control module. The GSM control module is placed in the meter box, and the signal output terminal of the GSM control module is connected to the mobile phone of the maintenance personnel. to communicate. GSM SMS control module is a high-end wireless data transmission control equipment, using SIEMENS industrial-grade GSM transceiver module and high-performance 32-bit processor, through the GSM network SMS service function to achieve wireless, long-distance (where GSM network coverage) Data transfer control. After the simulation test on the standby distribution transformer, when the artificial wiring causes the load to be seriously unbalanced, causing the neutral line load of the transformer to be greater than the setting value of the current relay, the coil LJ of the current relay is energized and closed, and the moving contact is closed to start the GSM control module, the GSM control module immediately sends an alarm message of "the neutral line of the distribution transformer at XXX is overloaded, please deal with it" to the pre-installed mobile phone, and the maintenance personnel will deal with it in time after receiving the message.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204228841U CN202260397U (en) | 2011-10-31 | 2011-10-31 | Distribution transformer neutral wire current overload remote monitoring and alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204228841U CN202260397U (en) | 2011-10-31 | 2011-10-31 | Distribution transformer neutral wire current overload remote monitoring and alarm device |
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| Publication Number | Publication Date |
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| CN202260397U true CN202260397U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204228841U Expired - Fee Related CN202260397U (en) | 2011-10-31 | 2011-10-31 | Distribution transformer neutral wire current overload remote monitoring and alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102995A (en) * | 2013-10-02 | 2015-11-25 | 韩国水力原子力株式会社 | Device for detecting phase breaks in connection lines of standby transformers in nuclear power plants by using Rogowski coils |
-
2011
- 2011-10-31 CN CN2011204228841U patent/CN202260397U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102995A (en) * | 2013-10-02 | 2015-11-25 | 韩国水力原子力株式会社 | Device for detecting phase breaks in connection lines of standby transformers in nuclear power plants by using Rogowski coils |
| US9714974B2 (en) | 2013-10-02 | 2017-07-25 | Korea Hydro & Nuclear Power Co., Ltd | Device for detecting open phase of connection line of standby transformer in nuclear power plant by using Rogowski coil |
| CN105102995B (en) * | 2013-10-02 | 2017-09-12 | 韩国水力原子力株式会社 | The equipment of the disconnected phase of connecting line for detecting the spare transformer in nuclear power station by using Rogowski coil |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20171031 |