CN101908728B - Air-cooled automatic remote control device of transformer - Google Patents
Air-cooled automatic remote control device of transformer Download PDFInfo
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- CN101908728B CN101908728B CN 201010223420 CN201010223420A CN101908728B CN 101908728 B CN101908728 B CN 101908728B CN 201010223420 CN201010223420 CN 201010223420 CN 201010223420 A CN201010223420 A CN 201010223420A CN 101908728 B CN101908728 B CN 101908728B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000009977 dual effect Effects 0.000 claims abstract description 6
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The invention provides an air-cooled automatic remote control device of a transformer, comprising an air-cooled controller body and a remote computer manipulation circuit (8); the air-cooled controller body comprises a dual power supply switching circuit (1), an automatic manual switching circuit (2), a temperature and load starting circuit (3), a standby motor starting circuit (4), a power supply monitoring circuit (5), a motor protection circuit (6) and a fan operation protection circuit (7); the remote computer manipulation circuit (8) is connected with the automatic manual switching circuit (2), the temperature and load starting circuit (3), the standby motor starting circuit (4) and the power supply monitoring circuit (5), and at least comprises two intermediate relays, wherein one intermediate relay has two normally open contacts while the other intermediate relay has one normally open contact and one normally closed contact, thereby reducing the cost.
Description
One, technical field
The present invention relates to a kind of air-cooled automatic remote control device of transformer, especially a kind of air-cooled automatic remote control device of transformer that is applicable to original wind cooling controller transformation of old transformer.
Two, background technology
Transformer is in running, in order to guarantee the normal operation of transformer, all need transformer is cooled off, therefore the air cooling equipment of transformer is an important attached electric component, air-cooled automatic remote control device of transformer is the necessary part of transformer, and usually transformer air-cooled control has three kinds of modes: the one, automatically control cooling device by temperature, the 2nd, control cooling device by load current, the 3rd, control cooling device by manual handle; The electrical principle structure that realizes these three kinds of modes has traditional relay formula and intelligent object formula PLC; Traditional relay formula low price, easy to maintenance and maintenance cost is low, but performance is complete not as the intelligent object formula; The intelligent object formula is expensive, and it is high that maintenance cost is wanted, but Performance Ratio traditional relay formula is complete, and energy and computer are used.
Now, the automatic degree of power equipment is increasing day by day, requirement to the transformer air-cooled auto-control is also more and more higher, transformer station and most of transformer station on now new have all used microcomputer automatic control, can't be used with microcomputer automatic control for old traditional relay formula transformer air-cooled control system; How the control of traditional relay formula transformer air-cooled is controlled this technical problem that combines with microcomputer automatic, also do not solve now.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this invention is to provide a kind of air-cooled automatic remote control device of transformer, reduced cost.
For achieving the above object; the technical scheme that the present invention takes is to include air-cooled controller body and remote computer control circuit; the air-cooled controller body is set to include the air-cooled controller body and includes dual power supply switching circuit; the auto-manual commutation circuit; temperature and stating with load circuit; motor start circuit for subsequent use; power supply monitoring circuit; motor protective circuit and fan operation protective circuit; the remote computer control circuit is set to and the auto-manual commutation circuit; temperature and stating with load circuit; motor start circuit for subsequent use; power supply monitoring circuit connects; the remote computer control circuit is set to include at least two auxiliary relays; one of them auxiliary relay is set to two normally opened contacts, and another auxiliary relay is set to a normally opened contact and a normally-closed contact.
Remote control computer provides signal, when distant splice grafting point receives signal, the computer operating circuit provides signal, make contactor JC3 closed, thereby make this body running of air-cooled controller, make blower fan work, when distant tapping point received signal, the computer operating circuit provided signal, and contactor JC3 is disconnected, thereby make the conversion of air-cooled controller body signal, blower fan is quit work, owing to designed the computer operating circuit, the work of normally opened contact and normally-closed contact by auxiliary relay, realize distant closing and distant minute function, therefore reduced cost.
The present invention has designed, the remote computer control circuit includes auxiliary relay VZJ5 and auxiliary relay VIZJ6, the air-cooled controller body is provided with intermediate relay I ZJ1, intermediate relay I VZJ4 and contactor JC3, the normally opened contact of auxiliary relay VZJ5 is set to and is connected in series with contactor JC3 after the normally opened contact of intermediate relay I ZJ1 is in parallel, auxiliary relay VZJ5, distant splice grafting point I and III and auxiliary relay VIZJ6 are set to branch road I, the normally opened contact of auxiliary relay VZJ5 be set to be connected in series with the normally-closed contact of auxiliary relay VZJ5 and auxiliary relay VIZJ6 after distant splice grafting point I and II are in parallel, auxiliary relay VZJ5, distant tapping point III and IV and auxiliary relay VIZJ6 are set to branch road II, the normally opened contact of auxiliary relay VIZJ6 be set to be connected in series with the normally opened contact of auxiliary relay VIZJ6 and auxiliary relay VZJ5 after distant tapping point III and IV are in parallel, branch road I and branch road II are set to be connected in parallel with intermediate relay I VZJ4, distant splice grafting point I and II, distant tapping point III is connected with IV be connected with remote control computer.
The present invention has designed, and auxiliary relay VZJ5 is set to two normally opened contacts, and auxiliary relay VIZJ6 is set to a normally opened contact and a normally-closed contact.
Four, description of drawings
Accompanying drawing is schematic diagram of the present invention.
Five, embodiment
Accompanying drawing is one embodiment of the present of invention, specify by reference to the accompanying drawings present embodiment, include the air-cooled controller body, auxiliary relay VZJ5 and auxiliary relay VIZJ6, the air-cooled controller body is provided with intermediate relay I ZJ1, intermediate relay I VZJ4 and contactor JC3, the normally opened contact of auxiliary relay VZJ5 is set to and is connected in series with contactor JC3 after the normally opened contact of intermediate relay I ZJ1 is in parallel, auxiliary relay VZJ5, distant splice grafting point I and II and auxiliary relay VIZJ6 are set to branch road I, the normally opened contact of auxiliary relay VZJ5 be set to be connected in series with the normally-closed contact of auxiliary relay VZJ5 and auxiliary relay VIZJ6 after distant splice grafting point I and II are in parallel, auxiliary relay VZJ5, distant tapping point III and IV and auxiliary relay VIZJ6 are set to branch road II, the normally opened contact of auxiliary relay VIZJ6 be set to be connected in series with the normally opened contact of auxiliary relay VIZJ6 and auxiliary relay VZJ5 after distant tapping point III and IV are in parallel, branch road I and branch road II are set to be connected in parallel with intermediate relay I VZJ4, distant splice grafting point I and II, distant tapping point III is connected with IV be connected with remote control computer.
In the present embodiment, the model of auxiliary relay VZJ5 is CA2-DN22M5N.
In the present embodiment, the model of auxiliary relay VIZJ6 is CA2-DN22M5N.
In the present embodiment; the air-cooled controller body includes dual power supply switching circuit 1; auto-manual commutation circuit 2; temperature and stating with load circuit 3; motor start circuit 4 for subsequent use; power supply monitoring circuit 5; motor protective circuit 6 and fan operation protective circuit 7; dual power supply switching circuit 1 is set to include change over switch SA1; AC intermediate relay K1 and K2; A.C. contactor JC1 and JC2; time relay sj 1; intermediate relay ZJ 1; contactor JC3 and comprehensive protector of motor DPJ; auto-manual commutation circuit 2 is set to include change over switch SA2 and SA3; intermediate relay ZJ 1; comprehensive protector of motor DPJ and contactor JC3; temperature and stating with load circuit 3 are set to include intermediate relay ZJ 1 and ZJ2 and time relay sj 2; motor start circuit 4 for subsequent use is set to include thermal overload relay RJ1; thermal overload relay RJ2; thermal overload relay RJ3 and intermediate relay ZJ 3; power supply monitoring circuit 5 is set to include intermediate relay ZJ 4; motor protective circuit 6 is set to include intermediate relay ZJ 1; contactor JC3 and comprehensive protector of motor DPJ, fan operation protective circuit 7 is set to include A.C. contactor 1JC; A.C. contactor 2JC; A.C. contactor 3JC; A.C. contactor 4JC; thermal overload relay RJ1; thermal overload relay RJ2; thermal overload relay RJ3; thermal overload relay RJ4 and intermediate relay ZJ 3.
In the present embodiment, remote computer control circuit 8 includes auxiliary relay VZJ5 and ZJ6.
In the present embodiment, auxiliary relay VZJ5 is set to two normally opened contacts, and auxiliary relay VIZJ6 is set to a normally opened contact and a normally-closed contact.
When 3ZK is closed, the control power supply is communicated with power supply, the contact 1 of hand switch SA2 and 2 is connected, when distant splice grafting point I and II connection, because the coil of auxiliary relay VIZJ6 is at power failure state, so the normally closed contact of auxiliary relay VIZJ6 is closed, therefore, the coil of auxiliary relay VZJ5 is charged, and is closed with the normal opened contact of distant splice grafting point I and II auxiliary relay VZJ5 arranged side by side, thereby finish the self-holding circuit of auxiliary relay VZJ5, first step during for distant closing; First step during by distant closing as can be known in the auto-manual switching part and the normal opened contact of intermediate relay ZJ 1 auxiliary relay VZJ5 arranged side by side closed; this moment the motor fault-free; the contact of motor comprehensive protection DPJ is closed; therefore; the coil of contactor JC3 is charged; thereby finished the charged process of motor main circuit, also just realized the charged work of blower fan.When distant tapping point III and IV connection, because the coil of auxiliary relay VZJ5 is at electriferous state, so the normal opened contact of auxiliary relay VZJ5 is closed, therefore, the coil of auxiliary relay VIZJ6 is charged, closed with the normal opened contact of distant tapping point III and IV auxiliary relay VIZJ6 arranged side by side, thus the self-holding circuit of auxiliary relay VIZJ6 finished, be first step of distant timesharing; First step by distant timesharing is known, disconnect at the distant normally closed contact that closes auxiliary relay VIZJ6 in the loop, thereby, the coil losing electricity of auxiliary relay VZJ5, in the auto-manual switching part and the normal opened contact of intermediate relay ZJ 1 auxiliary relay VZJ5 arranged side by side disconnect, therefore, the coil losing electricity of contactor JC3, motor loses power supply, and blower fan quits work.In the present embodiment, when the oil temperature of transformer reaches temperature controller K2, start three groups of blower fans, another group blower fan is for subsequent use.
In the Mount Taishan Transfomer Substation Reconstruction process that my company undertakes the construction of, the electric equipment that has used my group to produce, but a problem has been proposed, exactly former transformer is carried out upgrading, require to implement remote automation control, if install the PLC plate additional, need 30,000 yuan, cost is high, I technical staff of company organization has carried out the problem tackling key problem, in the laboratory, carried out the solution of the present invention test, carried out 10,000 5 thousand times distant closing and distant separating tests, technical problem does not appear, result of the test is felt quite pleased, and is installing two auxiliary relays additional, and cost is 600 yuan.
The present invention has lower characteristics:
1, owing to designed two auxiliary relays, realized distant closing and distant minute function, reduced cost.
2, technical characterstic of the present invention is: by increasing long-range distant splice grafting point, and in the loop, increase the self-sustaining contact, with this realize long-rangely distantly closing, long-range distant minute with long-range distant closing, logical auxiliary relay interlocking loop design realizes, by increasing auxiliary relay, realize that computer remote is distant to close distant minute cooling device.
3, the present invention is easy to install, and structural principle is simple, and is workable, and performance is reliable, is particularly suitable for the air-cooled controls of traditional relay such as old station transformation.
4, need to increase by two auxiliary relays in original transformer air-cooled control system, because the auxiliary relay small volume, can not cause large impact to the volume of transformer air-cooled control cubicle, not change original control structure, guarantee original control performance.
In the air-cooled automatic remote control device of transformer technical field; Every air-cooled controller body that includes is set to include the air-cooled controller body and includes dual power supply switching circuit 1; auto-manual commutation circuit 2; temperature and stating with load circuit 3; motor start circuit 4 for subsequent use; power supply monitoring circuit 5; motor protective circuit 6 and fan operation protective circuit 7; remote computer control circuit 8 is set to and auto-manual commutation circuit 2; temperature and stating with load circuit 3; motor start circuit 4 for subsequent use; power supply monitoring circuit 5 connects; remote computer control circuit 8 is set to include at least two auxiliary relays; one of them auxiliary relay is set to two normally opened contacts, and another auxiliary relay is set to the technology contents of a normally opened contact and a normally-closed contact all in protection scope of the present invention.
Claims (1)
1. air-cooled automatic remote control device of transformer; It is characterized in that: include air-cooled controller body and remote computer control circuit (8); the air-cooled controller body is set to include dual power supply switching circuit (1); auto-manual commutation circuit (2); temperature and stating with load circuit (3); motor start circuit for subsequent use (4); power supply monitoring circuit (5); motor protective circuit (6) and fan operation protective circuit (7); remote computer control circuit (8) is set to and auto-manual commutation circuit (2); temperature and stating with load circuit (3); motor start circuit for subsequent use (4); power supply monitoring circuit (5) connects; remote computer control circuit (8) includes the first auxiliary relay VZJ5 and the second auxiliary relay VIZJ6; the air-cooled controller body is provided with the 3rd intermediate relay I ZJ1; the 4th intermediate relay I VZJ4 and contactor JC3; the first normally opened contact of the first auxiliary relay VZJ5 is set to and is connected in series with contactor JC3 after the normally opened contact of the 3rd intermediate relay I ZJ1 is in parallel; the first auxiliary relay VZJ5 and the second normally opened contact thereof; the first distant splice grafting point I; the normally-closed contact of the second distant splice grafting point II and the second auxiliary relay VIZJ6 is set to the first branch road; the second normally opened contact of the first auxiliary relay VZJ5 and the first distant splice grafting point I that is connected in series; be set to after the second distant splice grafting point II parallel connection be connected in series with normally-closed contact and the first auxiliary relay VZJ5 of the second auxiliary relay VIZJ6; the second auxiliary relay VZJ6 and normally opened contact thereof; the first distant tapping point III; the 3rd normally opened contact of the second distant tap IV and the first auxiliary relay VIZJ5 is set to the second branch road; the normally opened contact of the second auxiliary relay VZJ6 and the first distant tapping point III that is connected in series; be set to after the second distant tapping point IV parallel connection be connected in series with the 3rd normally opened contact and the second auxiliary relay VIZJ6 of the first auxiliary relay VZJ5; the first branch road and the second branch road are set to be connected in parallel with the 4th intermediate relay I VZJ4, the first distant splice grafting point I and the second distant splice grafting point II; the first distant tapping point III be connected distant tapping point IV and be set to be connected with remote control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223420 CN101908728B (en) | 2010-07-05 | 2010-07-05 | Air-cooled automatic remote control device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223420 CN101908728B (en) | 2010-07-05 | 2010-07-05 | Air-cooled automatic remote control device of transformer |
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| Publication Number | Publication Date |
|---|---|
| CN101908728A CN101908728A (en) | 2010-12-08 |
| CN101908728B true CN101908728B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010223420 Expired - Fee Related CN101908728B (en) | 2010-07-05 | 2010-07-05 | Air-cooled automatic remote control device of transformer |
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| CN (1) | CN101908728B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246303A (en) * | 2013-04-11 | 2013-08-14 | 江苏省电力公司张家港市供电公司 | Control circuit of main transformer air-cooling system |
| CN104122790B (en) * | 2013-04-27 | 2016-08-17 | 杭州市电力局 | Cooling system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733542Y (en) * | 2004-07-09 | 2005-10-12 | 金坛苏源集团有限公司 | Control device for air-cooled system of power transformer |
| CN201402708Y (en) * | 2008-12-23 | 2010-02-10 | 中电电气集团有限公司 | Fan control device of air-cooling transformer |
| CN201556506U (en) * | 2009-12-17 | 2010-08-18 | 河南省电力公司漯河供电公司 | Natural circulation air-cooling control module for large transformer |
| CN201774159U (en) * | 2010-07-05 | 2011-03-23 | 山东泰开变压器有限公司 | Transformer air-cooling automated remote control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61208816A (en) * | 1985-03-14 | 1986-09-17 | Toshiba Corp | Cooling method for transformer |
-
2010
- 2010-07-05 CN CN 201010223420 patent/CN101908728B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733542Y (en) * | 2004-07-09 | 2005-10-12 | 金坛苏源集团有限公司 | Control device for air-cooled system of power transformer |
| CN201402708Y (en) * | 2008-12-23 | 2010-02-10 | 中电电气集团有限公司 | Fan control device of air-cooling transformer |
| CN201556506U (en) * | 2009-12-17 | 2010-08-18 | 河南省电力公司漯河供电公司 | Natural circulation air-cooling control module for large transformer |
| CN201774159U (en) * | 2010-07-05 | 2011-03-23 | 山东泰开变压器有限公司 | Transformer air-cooling automated remote control device |
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| CN101908728A (en) | 2010-12-08 |
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Owner name: JIANGSU ELECTRIC POWER COMPANY YANGZHOU POWER SUPP Effective date: 20141115 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Junhai Inventor after: Zhang Guodong Inventor after: Zhao Yuxiao Inventor after: Qi Shiwei Inventor after: Rui Yong Inventor before: Yang Junhai Inventor before: Zhang Guodong Inventor before: Zhao Yuxiao Inventor before: Qi Shiwei |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG JUNHAI ZHANG GUODONG ZHAO YUXIAO QI SHIWEI TO: YANG JUNHAI ZHANG GUODONG ZHAO YUXIAO QI SHIWEI RUI YONG |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141115 Address after: 271000 Tai'an high tech Development Zone, Shandong Patentee after: Shandong Taikai Transformer Co., Ltd. Patentee after: Jiangsu Electric Power Company Patentee after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Patentee after: Baoying County Power Supply Company of Jiangsu Electric Power Company Address before: 271000 Tai'an high tech Development Zone, Shandong Patentee before: Shandong Taikai Transformer Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20190705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |