CN202083753U - Online monitoring and early warning device for real-time loss of transformers - Google Patents
Online monitoring and early warning device for real-time loss of transformers Download PDFInfo
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- CN202083753U CN202083753U CN2011201621275U CN201120162127U CN202083753U CN 202083753 U CN202083753 U CN 202083753U CN 2011201621275 U CN2011201621275 U CN 2011201621275U CN 201120162127 U CN201120162127 U CN 201120162127U CN 202083753 U CN202083753 U CN 202083753U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to an online monitoring and early warning device for real-time loss of transformers, which comprises a current sensor module, a signal processing module, a central information processor, a driving unit, a liquid crystal display, a GPRS (general packet radio service) wireless module, a power management circuit, a storage battery and a PC (personal computer). Fundamental current and harmonic current of output ends of the transformers are acquired by the aid of a current sensor and combined with tested parameters of the transformers in an offline state, current iron loss, copper loss and harmonic loss of the transformers are computed, accordingly total loss of the transformers is obtained, and the online monitoring and early warning device judges whether the transformers are in high loss or not according to measurement results. The central information processor controls the driving unit to display monitored data on the liquid crystal display, and when the loss of the transformers is higher, early warning signals are transmitted to management staff by the aid of the GPRS wireless module. The online monitoring and early warning device can realize online analyzing and monitoring and high-loss early warning effects for the real-time loss of the transformers, and is low in power loss, high in sensibility and simple in structure.
Description
Technical field
The utility model relates to transformer loss monitoring field, specially refers to real-time loss on-line monitoring of a kind of transformer and prior-warning device.
Background technology
Along with China's electrical network scale constantly enlarges, transformer is as equipment for power transmission and distribution usage quantity sustainable growth important in the electric system, its total losses account for the large percentage of gross generation, and therefore, the detection of the real-time loss of transformer is significant to the wastage reducing and energy saving of electrical network.Total losses of transformer is made of first-harmonic loss and harmonic loss, and wherein harmonic loss becomes an important energy consumption index owing to the attention that extensively progressively obtains people of nonlinear load application, and its size is relevant with transformer load.Therefore, the generally attention that the real-time monitoring means of corresponding online has caused domestic and international scientific worker is found out in the research transformer loss.
At present existing transformer loss measuring apparatus, because the harmonic loss can not effectively obtain the transformer operation time need be measured high pressure and low-pressure side voltage simultaneously, electric current obtains the real-time loss of transformer, the big cost height of metering outfit volume.The utility model mainly is by gathering transformer output terminal fundamental current and harmonic current, the transformer parameter that records in conjunction with off-line state, calculate current transformer iron loss, copper loss and harmonic loss, thereby acquisition total losses of transformer, reach purpose, and judge whether high damage of transformer loss according to measurement result to transformer loss monitoring.By central information processor acquired signal is handled, utilized liquid crystal display displays, and utilize the GPRS wireless network to be connected, realize on-line monitoring the real-time loss of transformer with main frame.
Summary of the invention
The purpose of this utility model provides real-time loss on-line monitoring of a kind of transformer and prior-warning device, and this device is suitable for monitoring the substation transformer total losses, i.e. copper loss, iron loss and harmonic loss.By to transformer real-time loss carry out on-line monitoring and high decrease early warning, reduce the variable-pressure operation cost, significant to improving in the power transmission and distribution process rate of energy.
For achieving the above object, the utility model adopts following technical scheme:
Real-time loss on-line monitoring of a kind of transformer and prior-warning device, it is characterized in that: this equipment comprises: current sensor module, signal processing module, central information processor, driver element, LCD, GPRS wireless module, electric power management circuit, accumulator and PC;
The input end of described signal processing module, output terminal connect the input end of current sensor module and the input end of central information processor respectively, the output terminal of described central information processor connects the input end of GPRS wireless module and driver element respectively, the output terminal of described driver element is connected with the input end of LCD, described accumulator connects central information processor, driver element, GPRS wireless module respectively by electric power management circuit, realizes function of supplying power;
Described GPRS wireless module is realized radio communication by wireless network and PC.
Described signal processing module is made of filtration module and signal amplification module, and filtration module adopts two-stage RC filtering circuit.
The utility model has the advantages that: simple in structure, low price, the reliability height, power attenuation is low, and is highly sensitive.
Description of drawings
The utility model can further specify by the indefiniteness embodiment that accompanying drawing provides;
Fig. 1 is a structure drawing of device of the present utility model;
Fig. 2 is an operational flowchart of the present utility model;
Among the figure: the 1-current sensor module; The 2-signal processing module; The 3-central information processor; The 4-driver element; The 5-LCD; 6-GPRS wireless module; The 7-electric power management circuit; The 8-accumulator; The 9-PC machine.
Embodiment
Below in conjunction with accompanying drawing invention is described further.
Referring to Fig. 1, real-time loss on-line monitoring of a kind of transformer and prior-warning device comprise: current sensor module 1, signal processing module 2, central information processor 3, driver element 4, LCD 5, GPRS wireless module 6, electric power management circuit 7, accumulator 8 and PC 9;
The input end of described signal processing module 2, output terminal connect the input end of current sensor module 1 and the input end of central information processor 3 respectively, the output terminal of described central information processor 3 connects the input end of GPRS wireless module 6 and driver element 4 respectively, the output terminal of described driver element 4 is connected with the input end of LCD 5, described accumulator 8 connects central information processor 3, driver element 4, GPRS wireless module 6 respectively by electric power management circuit 7, realizes function of supplying power;
Described GPRS wireless module 6 is realized radio communication by wireless network and PC 9.
Described current sensor module 1 adopts the TR0150-1B current transformer of Hubei Tianrui Electronic Co., Ltd., the fundamental current and the harmonic current signal of secondary side when gathering the transformer operation; Signal processing module 2 is made of filtration module and signal amplification module, and filtration module adopts two-stage RC filtering circuit, and the signal amplification module adopts the MHW1224 of MOTOROLA company; Central information processor 3 adopts the TMS320F2812 digital signal processor; LCD 5 adopts the graphic dot matrix Liquid Crystal Module 12864D1 of Beijing Hua Yihong space science and technology limited Company; PRS wireless module 6 adopts the mc37i GPRS module of Siemens Company; The storage battery power supply that accumulator 8 adopts the two dove company limiteds in Beijing to produce; Electric power management circuit 7 adopts the adjustable integrated regulator LM317 of three ends to constitute voltage-stabilized power supply circuit.
Referring to Fig. 2, current sensor is gathered current signal, then this signal is carried out filtering and processing and amplifying; Signal after the processing imports central information processor into, carry out Fast Fourier Transform (FFT), obtain Circuit Fault on Secondary Transformer fundamental current and each harmonic electric current, the transformer parameter that records in conjunction with off-line state, calculate current transformer iron loss, copper loss and harmonic loss, thereby obtain the real-time loss of transformer; Control drive unit is in the real-time loss of liquid crystal display displays transformer then; Judge whether high damage of loss, send early warning signal to PC, continue to gather current signal if not then returning if then control the GPRS wireless module.
Claims (2)
1. real-time loss on-line monitoring of transformer and prior-warning device is characterized in that:
This equipment comprises: current sensor module (1), signal processing module (2), central information processor (3), driver element (4), LCD (5), GPRS wireless module (6), electric power management circuit (7), accumulator (8) and PC (9);
The input end of described signal processing module (2), output terminal connects the input end of current sensor module (1) and the input end of central information processor (3) respectively, the output terminal of described central information processor (3) connects the input end of GPRS wireless module (6) and driver element (4) respectively, the output terminal of described driver element (4) is connected with the input end of LCD (5), described accumulator (8) connects central information processor (3) respectively by electric power management circuit (7), driver element (4), GPRS wireless module (6) is realized function of supplying power;
Described GPRS wireless module (6) is realized radio communication by wireless network and PC (9).
2. real-time loss on-line monitoring of a kind of transformer according to claim 1 and prior-warning device is characterized in that: described signal processing module (2) is made of filtration module and signal amplification module, and filtration module adopts two-stage RC filtering circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621275U CN202083753U (en) | 2011-05-20 | 2011-05-20 | Online monitoring and early warning device for real-time loss of transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621275U CN202083753U (en) | 2011-05-20 | 2011-05-20 | Online monitoring and early warning device for real-time loss of transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083753U true CN202083753U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201621275U Expired - Fee Related CN202083753U (en) | 2011-05-20 | 2011-05-20 | Online monitoring and early warning device for real-time loss of transformers |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901890A (en) * | 2012-11-28 | 2013-01-30 | 安徽省电力公司 | Transformer economic operation online judging method |
| CN104049133A (en) * | 2014-06-04 | 2014-09-17 | 上海申瑞继保电气有限公司 | Method for calculating harmonic current loss of distribution network three-phase four-wire system electric transmission line |
| CN104316762A (en) * | 2014-11-14 | 2015-01-28 | 国网重庆市电力公司江津供电分公司 | Dynamic load harmonic wave monitoring method and device for power distribution transformer |
| CN109802492A (en) * | 2019-03-19 | 2019-05-24 | 深圳供电局有限公司 | Prevention and control treatment system and circuit loss treatment method |
-
2011
- 2011-05-20 CN CN2011201621275U patent/CN202083753U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901890A (en) * | 2012-11-28 | 2013-01-30 | 安徽省电力公司 | Transformer economic operation online judging method |
| CN102901890B (en) * | 2012-11-28 | 2015-04-22 | 安徽省电力公司 | Transformer economic operation online judging method |
| CN104049133A (en) * | 2014-06-04 | 2014-09-17 | 上海申瑞继保电气有限公司 | Method for calculating harmonic current loss of distribution network three-phase four-wire system electric transmission line |
| CN104049133B (en) * | 2014-06-04 | 2016-09-07 | 上海申瑞继保电气有限公司 | Distribution three-phase four-wire system transmission line harmonic current loss computational methods |
| CN104316762A (en) * | 2014-11-14 | 2015-01-28 | 国网重庆市电力公司江津供电分公司 | Dynamic load harmonic wave monitoring method and device for power distribution transformer |
| CN109802492A (en) * | 2019-03-19 | 2019-05-24 | 深圳供电局有限公司 | Prevention and control treatment system and circuit loss treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121101 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121101 Address after: Chongqing city Binjiang District Jiangjin Jijiang Road West No. 366 Patentee after: Chongqing Electric Power Co.,Ltd. Jiangjin Power Supply Bureau Patentee after: State Grid Corporation of China Address before: 402260 Chongqing city Jiangjin Jijiang Binjiang Road West No. 366 Patentee before: Chongqing Electric Power Co.,Ltd. Jiangjin Power Supply Bureau |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20160520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |