CN203217402U - Transformer cooling control electronic device - Google Patents
Transformer cooling control electronic device Download PDFInfo
- Publication number
- CN203217402U CN203217402U CN 201320214001 CN201320214001U CN203217402U CN 203217402 U CN203217402 U CN 203217402U CN 201320214001 CN201320214001 CN 201320214001 CN 201320214001 U CN201320214001 U CN 201320214001U CN 203217402 U CN203217402 U CN 203217402U
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- Prior art keywords
- transformer
- arm processor
- transformer cooling
- control electronic
- module
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- Expired - Lifetime
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Abstract
The utility model discloses a transformer cooling control electronic device which comprises a CPU board which comprises an ARM processor. The ARM processor is connected with station control level equipment through an Ethernet communication module. The ARM processor is respectively connected with a memory, an output quantity output module and a liquid crystal display module. The ARM processor is also connected with a locally digitizing measurement unit through an RS485 communication module. The output quantity output module is connected with a control cabinet through a conductive wire. The control cabinet is respectively connected with two coolers through conductive wires. Both the two coolers are connected with a transformer body. According to the transformer cooling control electronic device of the utility model, an ARM embedding system and communication means are used, the modular design is adopted to overcome the disadvantages that the traditional transformer cooling controller has complex wire connection and a fixed control strategy and the Ethernet communication based on an IEC61850 protocol with the station control level equipment can not be realized, and the transformer cooling control electronic device is especially suitable for the intelligent reconstruction of a power transformer cooling system.
Description
Technical field
The utility model belongs to transformer opertaing device technical field, relates to a kind of transformer cooling control electronic installation.
Background technology
Transformer is in operation and can produces a large amount of losses, and these losses finally all change into heat can make the transformer temperature raise, and too high temperature shortens its serviceable life with the safe operation of entail dangers to transformer.In order to guarantee that transformer safely and steadily runs, to refrigeratory and corresponding control device be installed to transformer usually.
The main transformer cooling system of tradition transformer station generally adopts the relay control device, and its control device logic function is low, nothing is communicated by letter and defencive function, and automatization level is low.In recent years, each manufacturer and relevant unit are all carrying out a large amount of research aspect the cold control plant automation degree of raising, and have obtained good effect.But still exist such as the data sharing scarce capacity, can't insert intelligent substation information integral platform and on-line monitoring system, cost problem of higher by the IEC61850 agreement.Therefore, be necessary very much the actual conditions at China's intelligent substation construction, function realization and the automaticity of cooling controller are improved accordingly.
IEC61850 is International Electrotechnical Commissio IEC(The International Electrotechnical Commission) issue up-to-date electric substation automation system standard, be intended to unified each all-in-one-piece substation communication system at present, the maintainability of raising system, opening and extendability promote power system networkization, informationalized development.What deserves to be mentioned is that IEC61850 not only is confined to simple communication protocol, but the standard of electric substation automation system, it has instructed the every field such as design, exploitation, engineering and maintenance of the automation of transformation substations.
The utility model content
The purpose of this utility model is to provide a kind of transformer cooling control electronic installation, can realize the online modification of cooling system control strategy, realize communicating by letter based on the IEC61850 agreement by Ethernet with station level equipment, when reliablely and stablely transformer cooler being controlled, simplify wiring, the intellectuality of implement device inserts.
The technical scheme that the utility model adopts is, transformer cooling control electronic installation, include CPU board and in-situ digitalization measuring unit, CPU board includes arm processor, arm processor is connected with station level equipment by the ethernet communication module, arm processor is connected with storer respectively by lead, the amount of leaving output module and LCD MODULE, arm processor also is connected with the in-situ digitalization measuring unit by the RS485 communication module, the amount of leaving output module is connected with switch board by lead, switch board is connected with two refrigeratorys by lead respectively, and two refrigeratorys all are connected with the transformer body.
Characteristics of the present utility model also are,
Arm processor adopts the S3C2440 chip.
The ethernet communication module adopts the Dual-Ethernet interface directly to be connected with station level equipment.
The beneficial effects of the utility model are:
(1) transformer of the present utility model cooling control electronic installation can be according to the gentle payload of oil, and in conjunction with the hot spot temperature of winding estimated value refrigeratory is controlled;
(2) but its relevant parameter definite value online modification of transformer of the present utility model cooling control electronic installation has automatic control, distant place control and manually controls three kinds of modes optional, control mode is more flexible;
(3) transformer of the present utility model cooling control electronic installation can equilibrium be respectively organized refrigeratory working time, takes full advantage of equipment;
(4) transformer cooling control electronic installation of the present utility model adopts the IEC61850 communication protocol, has avoided the problem of communication protocol conversion, and the intellectuality of implement device inserts.
Description of drawings
Fig. 1 is the hardware system structure synoptic diagram of transformer cooling control electronic installation of the present utility model.
Among the figure, 1.ARM processor, 2. ethernet communication module, 3. storer, 4.RS485 communication module, 5. in-situ digitalization measuring unit, the 6. amount of leaving output module, 7. LCD MODULE, 8.CPU plate, 9. switch board, 10. refrigeratory, 11. transformer bodies.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Transformer cooling control electronic installation of the present utility model, as shown in Figure 1, include CPU board 8 and in-situ digitalization measuring unit 5, CPU board 8 includes arm processor 1, arm processor 1 is connected with station level equipment by ethernet communication module 2, arm processor 1 is connected with storer 3 respectively by lead, the amount of leaving output module 6 and LCD MODULE 7, arm processor 1 also is connected with in-situ digitalization measuring unit 5 by RS485 communication module 4, the amount of leaving output module 6 is connected with switch board 9 by lead, switch board 9 is connected with 10, two refrigeratorys 10 of two refrigeratorys by lead respectively and all is connected with transformer body 11.
Transformer body 11 refers to the transformer in the electric system, and two refrigeratorys 10 are installed on the transformer body 11, controls by 9 pairs of refrigeratorys 10 of switch board.Oil temperature sensor is installed on the oil tank wall of transformer body 11, or the output terminal of Transformer Winding optical fiber temperature-measurement; Load signal is taken from the secondary side of bushing shell for transformer current transformer; The ambient temperature and humidity sensor is installed on in-situ digitalization measuring unit 5.
To come in temperature of oil in transformer, load and the information acquisition of transformer ambient temperature by in-situ digitalization measuring unit 5 earlier, carry out analyzing and processing by 1 pair of information that collects of arm processor then, and make corresponding judgement in conjunction with certain control strategy, switch board 9 to refrigeratory 10 sends suitable steering order, and generates corresponding warning information under the situation of or transformer overload too high in temperature; According to IEC354 standard or its improved model hot spot temperature of winding is estimated simultaneously.Again by arm processor 1 by Ethernet and station level devices communicating, information is uploaded, show the information of the gentle load of oil simultaneously by LCD MODULE 7.
In-situ digitalization measuring unit 5 in the transformer cooling control electronic installation of the present utility model is the devices that temperature of oil in transformer, load (AC signal) analog quantity information converted to digital quantity by sensor, the Pt100 platinum resistance signal of transformer body output can be changed into the direct current signal of 4mA～20mA, again by inner AD Acquisition Circuit with its digitizing; Obtain transformer body 11 import Current Transformer Secondary side output informations by straight-through current transformer, thereby obtain the transformer load situation; Obtain transformer body 11 ambient temperatures by the digital temperature sensor that is arranged in the in-situ digitalization measuring unit 5; Simultaneously the switching value state can be converted into digital information transmits.Wherein in-situ digitalization measuring unit 5 can convert the platinum resistance signal to the 4mA of two-way～20mA current signal at least, the inner usefulness of one road device, and a road direction is exported outward.
RS485 communication module 4 be responsible for and in-situ digitalization measuring unit 5 between communicate, its transformer operating mode of gathering up and refrigeratory work state information are passed to arm processor 1 handle.
Arm processor 1 adopts the S3C2440 of SAMSUNG company, and this chip has the fast and powerful advantage of processing speed.Transformer operating mode and refrigeratory work state information that arm processor 1 responsible calculating and analysis are come up by 5 collections of in-situ digitalization measuring unit, make corresponding judgement in conjunction with certain control strategy, send suitable steering order by the amount of leaving output module 6 to the refrigeratory switch board, show the IED running status on the spot by highlighted LED lamp, and the corresponding warning information of generation under the situation of or transformer overload too high in temperature, the processing of simultaneously data being packed, upload by ethernet communication module 2, IED can be communicated by the IEC61850 agreement with station level equipment, with transformer temperature and load condition information, the cooling running status is sent to station level equipment, and shows by operation interface.Host computer operated from a distance function is provided simultaneously, the monitor staff is by corresponding operation interface, can cool off the switching operation of power supply, cooling fan group, the modification of the oily startup temperature definite value of cooling fan group, load definite value, the modification of the rotational cycle of power supply switching cycle, cooling fan group.Show information such as oil temperature, load simultaneously on the spot by LCD MODULE 7.
Storer 3 is responsible for this class start-up parameter of the gentle load of oil that storage is set, refrigeratory running status zone bit etc.; Have both the function that data are temporary and expansion is upgraded simultaneously.
Arm processor 1 carries out corresponding on/off switch and blocked operation by 6 pairs of refrigeratorys of the amount of leaving output module, and the amount of leaving output module 6 default conditions under the device power-down conditions are the state that the fan group opens entirely.
Transformer cooling control electronic installation of the present utility model can send fault alarm signal with telecommunication on the spot, report to the police by operation interface and acousto-optic, and concrete abort situation, time of origin and transformer work information at that time can be provided, inquire about for the monitor staff.
Claims (3)
1. electronic installation is controlled in the transformer cooling, it is characterized in that, include CPU board (8) and in-situ digitalization measuring unit (5), described CPU board (8) includes arm processor (1), described arm processor (1) is connected with station level equipment by ethernet communication module (2), described arm processor (1) is connected with storer (3) respectively by lead, the amount of leaving output module (6) and LCD MODULE (7), described arm processor (1) also is connected with described in-situ digitalization measuring unit (5) by RS485 communication module (4), the described amount of leaving output module (6) is connected with switch board (9) by lead, described switch board (9) is connected with two refrigeratorys (10) by lead respectively, and described two refrigeratorys (10) all are connected with transformer body (11).
2. transformer cooling control electronic installation according to claim 1 is characterized in that described arm processor (1) adopts the S3C2440 chip.
3. transformer cooling control electronic installation according to claim 1 is characterized in that described ethernet communication module (2) adopts the Dual-Ethernet interface directly to be connected with station level equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214001 CN203217402U (en) | 2013-04-24 | 2013-04-24 | Transformer cooling control electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214001 CN203217402U (en) | 2013-04-24 | 2013-04-24 | Transformer cooling control electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203217402U true CN203217402U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214001 Expired - Lifetime CN203217402U (en) | 2013-04-24 | 2013-04-24 | Transformer cooling control electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203217402U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251749A (en) * | 2014-08-28 | 2014-12-31 | 广东狮能电气股份有限公司 | On-line monitoring system for oil temperature of transformer |
| CN105717809A (en) * | 2014-12-05 | 2016-06-29 | 四方特变电工智能电气有限公司 | Transformer intelligent type electronic controller |
| CN108152647A (en) * | 2017-12-14 | 2018-06-12 | 深圳供电局有限公司 | Wiring detection method of transformer cooling control cabinet and transformer cooling control cabinet |
-
2013
- 2013-04-24 CN CN 201320214001 patent/CN203217402U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251749A (en) * | 2014-08-28 | 2014-12-31 | 广东狮能电气股份有限公司 | On-line monitoring system for oil temperature of transformer |
| CN105717809A (en) * | 2014-12-05 | 2016-06-29 | 四方特变电工智能电气有限公司 | Transformer intelligent type electronic controller |
| CN108152647A (en) * | 2017-12-14 | 2018-06-12 | 深圳供电局有限公司 | Wiring detection method of transformer cooling control cabinet and transformer cooling control cabinet |
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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: XI'AN JINPOWER ELECTRICAL CO., LTD. Free format text: FORMER OWNER: XI'AN ENGINEERING UNIV. Effective date: 20140813 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710048 XI'AN, SHAANXI PROVINCE TO: 710075 XI'AN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140813 Address after: 710075 Shaanxi city of Xi'an province high tech Zone Fenghui Road No. 20 Huajing Business Plaza, block B No. 11301 Patentee after: XI'AN JIN POWER ELECTRICAL Co.,Ltd. Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 19 Patentee before: XI'AN POLYTECHNIC University |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |