CN106598117B - Oil-immersed type transformer air cooling system - Google Patents
Oil-immersed type transformer air cooling system Download PDFInfo
- Publication number
- CN106598117B CN106598117B CN201611093263.7A CN201611093263A CN106598117B CN 106598117 B CN106598117 B CN 106598117B CN 201611093263 A CN201611093263 A CN 201611093263A CN 106598117 B CN106598117 B CN 106598117B
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- Prior art keywords
- relay
- normal open
- open switch
- fuse
- phase
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- 238000001816 cooling Methods 0.000 title claims abstract description 24
- 230000009466 transformation Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000008034 disappearance Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009183 running Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transformer Cooling (AREA)
Abstract
The present invention provides oil-immersed type transformer air cooling systems, it is characterised in that：Including wind turbine M and three-phase power line, the three-phase power line is connected with chopper switch ZK and relay KM, the relay KM is equipped with three groups of normally opened contacts, the relay KM is connected with fuse FR, the fuse FR is connected with wind turbine M, the control loop of control wind turbine is connected between three-phase power line wherein two-phase, with the above mentioned technical proposal, the present invention by it is air-cooled operation or air-cooled disappearance of signal report to master control room backstage, enable operations staff in background monitoring to air-cooled state, monitors that air-cooled state provides a convenient for operations staff.
Description
Technical field
The present invention relates to transformer Temperature and Humidity Control apparatus fields, more particularly to a kind of air-cooled system of oil-immersed type transformer
System.
Background technology
Safe and reliable operation of the stable operation of power transformer concerning distribution, installation wind cooling controller are to reduce transformation
Effective behave of device temperature.Transformer temperature changes greatly, and changes frequent.For a long time, transformer air-cooling device is limited by back
Road is simple, cannot be satisfied the fining requirement of monitoring temperature, and most of work for using manual switching transformer air-cooling device
Amount is big, not only increases the labor intensity of personnel, can not switching transformer cooling system as requested in time, air cooling equipment is not
The needs of transformer station high-voltage side bus can be met.System often lags behind transformer temperature variation, causes the danger that winding temperature is excessively high.Cause
This, is improved Transformer Forced-Air Cooling System, and measure temperature control system is more flexible reliable, for the safe and stable operation of transformer
It has important practical significance.
Invention content
The technical problem to be solved by the present invention is to overcome drawbacks described above, provide that a kind of control is accurate, and easy to operate, effect is good
Oil-immersed type transformer air cooling system.
To solve the above problems, the technical solution adopted in the present invention is：
Oil-immersed type transformer air cooling system, it is characterised in that：Including wind turbine M and three-phase power line, the three-phase power line connects
It is connected to chopper switch KZ and relay KM, the relay KM is equipped with three groups of normally opened contacts, the relay KM is connected with fusing
Device FR, the fuse FR are connected with wind turbine M, and the control loop of control wind turbine is connected between three-phase power line wherein two-phase,
The control loop includes the first circuit, second servo loop, tertiary circuit, the 4th circuit, and first circuit includes change-over switch
SA, relay KM and fuse FR, the change-over switch SA include input contact P1, P2 and output contact P3, P4, the relay
Device KM is connect with contact P2, and the second servo loop includes third normal open switch KA3, the sides third normal open switch KA3 with touch
Point P4 connections, the other side and the first circuit mount position positioned at relay KM and contact P2 between, and the tertiary circuit includes the
One normal open switch KA1 and the 4th normal open switch KA4, the 4th circuit include the second normal open switch KA2 and relay coil KA,
The second normal open switch KA2 input sides are connect with contact P4, and the relay coil KA is located at the first circuit mounting position
Between relay KM and FR, the tertiary circuit is arranged in parallel with the second normal open switch KA2, and the relay coil KA includes the
The coil of three normal open switch KA3 and the 4th normal open switch KA4, the first normal open switch KA1 and the second normal open switch KA2 are to become
The temperature nodes of depressor temperature controller setting.
As an improvement：The mounting position of the control loop and three-phase power line is located at chopper switch KZ and relay
Between KM.
As an improvement：First circuit includes being additionally provided with the first single-phase single-phase fuses of fuse RD1 and second
RD2, the first single-phase fuse RD1 are set between three-phase power line and change-over switch SA, the second single-phase fuse
RD2 is set between three-phase power line and fuse FR.
As an improvement：Further include temperature humidity control device, the temperature humidity control device includes setting gradually
Air inlet, radiator, humidifier, heater and gas outlet, further include air pump, evacuation pipe and dehumidifier, the radiator with
Evacuation pipe is arranged in parallel, and the humidifier is arranged in parallel with dehumidifier, and the first flow direction is equipped between the air inlet and radiator
Controller, first flow direction controller include two output ends, and one of output end is connect with radiator input terminal, another
A output end is connect with evacuation pipe input terminal；The second flow direction controller, the second flow direction are equipped between the radiator and humidifier
Controller includes two output ends, and one of output end is connect with humidifier input terminal, another output end and dehumidifier are defeated
Enter end connection, the second flow direction controller input terminal is connect with radiator and evacuation pipe output end, and the wind turbine M is set to out
Gas port.
By adopting the above-described technical solution, the present invention by it is air-cooled operation or air-cooled disappearance of signal report to master control room backstage,
Enable operations staff in background monitoring to air-cooled state, monitors that air-cooled state provides a convenient for operations staff.
The invention will be further described with reference to the accompanying drawings and examples.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of oil-immersed type transformer air cooling system of the present invention；
Attached drawing 2 is the connection structure signal of humidifier in oil-immersed type transformer air cooling system of the present invention, dehumidifier, heater
Figure；
Attached drawing 3 is the structural schematic diagram of flow direction controller in oil-immersed type transformer air cooling system of the present invention；
Attached drawing 4 is the overlooking structure diagram of Fig. 3；
Attached drawing 5 is the structural schematic diagram of baffle in oil-immersed type transformer air cooling system of the present invention；
Attached drawing 6 is the structural schematic diagram of first rotating shaft in oil-immersed type transformer air cooling system of the present invention；
Attached drawing 7 is the use state diagram of first rotating shaft in oil-immersed type transformer air cooling system of the present invention；
Attached drawing 8 is the structural schematic diagram of part A-A in Fig. 7.
In figure：1- radiators；2- evacuation pipes；3- humidifiers；4- dehumidifiers；5- heaters；The first flow direction controllers of 6-；7-
Air pump；8- return ducts；9- air inlets；The gas outlets 10-；11- tube bodies；12- counterbores；13- electromagnet；14- first rotating shafts；15- is kept off
Plate；16- operating levers；The first output ends of 17-；18- second output terminals；19- casings；20- jacks；21- magnet；22- notches；23-
Interconnecting piece；The second shafts of 24-；25- circular holes；26- sliding slots；27- heads；28- partition boards；The second flow direction controllers of 29-；30- thirds
Flow direction controller.
Specific implementation mode
Embodiment：
As shown in Figure 1, 2, oil-immersed type transformer air cooling system, it is characterised in that：It is described including wind turbine M and three-phase power line
Three-phase power line is connected with chopper switch KZ and relay KM, the relay KM are equipped with three groups of normally opened contacts, the relay
KM is connected with fuse FR, and the fuse FR is connected with wind turbine M, control wind turbine is connected between three-phase power line wherein two-phase
Control loop, the control loop includes the first circuit, second servo loop, tertiary circuit, the 4th circuit, first circuit packet
Include change-over switch SA, relay KM and fuse FR, the change-over switch SA include input contact P1, P2 and output contact P3,
P4, the relay KM are connect with contact P2, and the second servo loop includes third normal open switch KA3, the third normal open switch
The sides KA3 are connect with contact P4, and the other side and the first circuit mount position between relay KM and contact P2, the third
Circuit include the first normal open switch KA1 and the 4th normal open switch KA4, the 4th circuit include the second normal open switch KA2 and after
Electric apparatus coil KA, the second normal open switch KA2 input sides are connect with contact P4, and the relay coil KA and the first circuit are hung
It connects position to be located between relay KM and FR, the tertiary circuit is arranged in parallel with the second normal open switch KA2, the relay line
Circle KA includes the coil of third normal open switch KA3 and the 4th normal open switch KA4, and the first normal open switch KA1 and second is normally opened
Switch KA2 is the temperature nodes of transformer temperature controller setting.
The mounting position of the control loop and three-phase power line is between chopper switch KZ and relay KM.
First circuit includes being additionally provided with the first single-phase single-phase fuse RD2 of fuse RD1 and second, and described first is single
Phase fuse RD1 is set between three-phase power line and change-over switch SA, and the second single-phase fuse RD2 is set to three-phase electricity
Between source line and fuse FR.
Further include temperature humidity control device, the temperature humidity control device includes the air inlet 9 set gradually, heat dissipation
Device 1, humidifier 3, heater 5 and gas outlet 10 further include air pump 7, avoid pipe 2 and dehumidifier 4, the radiator 1 and evacuation
Pipe 2 is arranged in parallel, and the humidifier 3 is arranged in parallel with dehumidifier 4, and the first flow direction is equipped between the air inlet 9 and radiator 1
Controller 6, first flow direction controller 6 include two output ends, and one of output end is connect with 1 input terminal of radiator,
Another output end is connect with evacuation 2 input terminal of pipe；The second flow direction controller 29 is equipped between the radiator 1 and humidifier 3,
Second flow direction controller 29 includes two output ends, and one of output end is connect with 3 input terminal of humidifier, another output end
It is connect with 4 input terminal of dehumidifier, 29 input terminal of the second flow direction controller is connect with radiator 1 and evacuation 2 output end of pipe, institute
It states wind turbine M and is set to gas outlet 10, the air pump 7 is connect with three-phase power line.
The radiator 1 is radiated using cooling fin, and the humidifier 3 uses ultrasonic atomizing humidifier, the heater 5 to make
With heating wire, the dehumidifier 4 uses hygroscopic agent.
The air inlet 9 and gas outlet 10 are equipped with filter screen.
The air pump 7 is set between air inlet 9 and the first flow direction controller 6, and 5 output end of the heater is equipped with third
Flow direction controller 30, the third flow direction controller 30 include two output ends, and one of output end is logical with 7 input terminal of air pump
The connection of return duct 8 is crossed, another output end is connect with gas outlet 10.If 5 output end gas humiture of heater cannot reach
It is required that then reentering air pump 7.
As shown in Figure 3,4, first flow direction controller, 6 or second flow direction controller 29 or third flow direction controller 30 wrap
Tube body 11 is included, partition board 28,28 end baffle 15 of the partition board are equipped in the tube body 11, the baffle 15 is connected with control baffle
15 driving device.
As shown in figure 5, the baffle 15 is equipped with magnet 21, the driving device includes several electromagnet 13, the electromagnetism
On 13 tube body 11 of iron.
The tube body 11 is round tube, and tube body 11 is separated into two cavitys by the partition board 28, and two cavitys are separately connected
It is semicircle to have the first output end 17 and second output terminal 18, the baffle 15, and the magnet 21 is set to 15 outer rim of baffle, institute
It states 11 end of tube body and is equipped with counterbore 12, several electromagnet 13 are set to 12 bottom surface of counterbore, the winding of 13 coil of adjacent electromagnet
Direction is opposite.
The tube body 11 is connected with casing 19 close to one end of baffle 15, and described sleeve pipe 19 is used as input terminal.
The driving device includes first rotating shaft 14, and the first rotating shaft 14 is fixedly connected with baffle 15, described first turn
14 end of axis is equipped with upper notch 22.
Notch 22 can be operated using screwdriver carry out control baffle 15.
As shown in Fig. 6,7 and 8, the first rotating shaft 14 is equipped with jack 20, and 20 side wall of the jack is equipped with sliding slot 26, described
26 upper end of sliding slot is equipped with circular hole 25, is rotated in the circular hole 25 and is provided with the second shaft 24,24 cross section of the second shaft is long
Degree is more than width, and 24 cross section of the second shaft can be ellipse or strip, and the strip edge is arc.
Second shaft 24 is connected with operating lever 16, and the jack 20 is connected to notch 22, the operating lever 16 and
One end of two shafts 24 connection is set in notch 22., 11 outside of the tube body is equipped with fixing groove.
When baffle 15 reach suitable position when, operating lever 16 inclination fell, fall into fixing groove, prevent first rotating shaft 14 after
Continuous rotation, the position of the fixing groove are corresponding with 15 operating position of baffle.
The operating lever 16 is equipped with head 27, and 27 outer diameter of the head is more than 20 internal diameter of jack.16 outer diameter of the operating lever
Less than 20 internal diameter of jack.
The operating lever 16 is cylinder, and the operating lever 16 is connected with interconnecting piece 23,23 width of the interconnecting piece with lack
Mouth 22 corresponds to.
Under identical environment temperature, its on-load of transformer Wen Shengyu is proportional, therefore can be according to transformer
Oil-temperature control air cooling system.The temperature nodes for selecting transformer temperature controller WJ settings, by taking 4545 DEG C and 55 DEG C of nodes as an example,
When temperature of oil in transformer reaches 55 DEG C (the first normal open switch KA1 is closed at 45 DEG C), the second normal open switch KA2 actions, relay
Device coil KA is closed, and relay coil KA self-sustainings, relay KM is connected and kept, the first loop start fan M.Fan M is opened
After dynamic, when oil temperature is less than 55 DEG C and when being higher than 45 DEG C, the first normal open switch KA1 is always maintained at fan operation.When oil temperature is less than
At 45 DEG C, the first normal open switch KA1 is disconnected, relay coil KA dead electricity, contactor KM coil losing electricities, and fan M stops.It replaces
Change-over switch can select automatic, manual, stopping.
The contact P1 and contact P2 of the change-over switch SA is manual switching mode, connecting terminal P1 and contact P2, relay
Device KM runnings, break contact P1 and contact P2, relay KM stop operating.
The contact P3 and contact P4 of the change-over switch SA is automatic switching mode, after connecting terminal P1 and contact P2, by
Transformer temperature controller control loop.
After improvement, automatic switching or manual switching, and simple system, reliable, reduction operations staff can be selected according to demand
Labor intensity reduces the harm to main transformer, it is ensured that safe and reliable power supply.When transformer institute on-load is larger, even if wind
Fan has turned on, and temperature may also persistently increase to over 65 DEG C, we are by selecting transformer temperature controller WJ to set at this time
Fixed temperature nodes K3 sends out alarm signal when temperature of oil in transformer has reached 65 DEG C, such operations staff can in time into
Row load down, or the spare main transformer that puts into operation, it is ensured that the safe operation of transformer.
This example is started by the improvement to air-cooled control loop, air-cooled control loop by its different thermal contacts
Or stop contactor, to turn on automatically or wind turbine M is disconnected, realizes automatic switching wind turbine M.After improvement, not only increase air-cooled
System circuit reliability of operation, the also perfect self-starting function of Transformer Forced-Air Cooling System, and also it is simple to improve principle, investment
It is small, monitor that air-cooled state provides a convenient for operations staff, it is ensured that the safe and stable operation of system.
One embodiment of the present invention has been described in detail above, but the content be only the present invention preferable implementation
Example should not be construed as limiting the practical range of the present invention.It is all according to all the changes and improvements made by the present patent application range
Deng should all fall within the scope of the patent of the present invention.
Claims (3)
1. oil-immersed type transformer air cooling system, it is characterised in that：Including wind turbine M and three-phase power line, the three-phase power line connection
There are chopper switch KZ and relay KM, the relay KM to be equipped with three groups of normally opened contacts, the relay KM is connected with fuse
FR, the fuse FR are connected with wind turbine M, and the control loop of control wind turbine, institute are connected between three-phase power line wherein two-phase
State control loop include the first circuit, second servo loop, tertiary circuit, the 4th circuit, first circuit include change-over switch SA,
Relay KM and fuse FR, the change-over switch SA include input contact P1, P2 and output contact P3, P4, the relay
KM is connect with contact P2, and the second servo loop includes third normal open switch KA3, the sides third normal open switch KA3 and contact
P4 connections, the other side and the first circuit mount position between relay KM and contact P2, and the tertiary circuit includes first
Normal open switch KA1 and the 4th normal open switch KA4, the 4th circuit include the second normal open switch KA2 and relay coil KA, institute
The second normal open switch KA2 input sides are stated to connect with contact P4, the relay coil KA and the first circuit mounting position be located at after
Between electric appliance KM and FR, the tertiary circuit is arranged in parallel with the second normal open switch KA2, and the relay coil KA includes third
The coil of normal open switch KA3 and the 4th normal open switch KA4, the first normal open switch KA1 and the second normal open switch KA2 are transformation
The temperature nodes of device temperature controller setting；
Further include temperature humidity control device, the temperature humidity control device includes air inlet (9), the radiator set gradually
(1), humidifier (3), heater (5) and gas outlet (10), further include air pump (7), evacuation pipe (2) and dehumidifier (4), described scattered
Hot device (1) is arranged in parallel with evacuation pipe (2), and the humidifier (3) is arranged in parallel with dehumidifier (4), the air inlet (9) with it is scattered
The first flow direction controller (6) is equipped between hot device (1), first flow direction controller (6) includes two output ends, one of them
Output end is connect with radiator (1) input terminal, another output end is connect with evacuation pipe (2) input terminal；The radiator (1) with
The second flow direction controller (29) is equipped between humidifier (3), the second flow direction controller (29) includes two output ends, one of them
Output end is connect with humidifier (3) input terminal, another output end is connect with dehumidifier (4) input terminal, the second flow direction control
Device (29) input terminal processed is connect with radiator (1) and evacuation pipe (2) output end, and the wind turbine M is set to gas outlet (10).
2. oil-immersed type transformer air cooling system according to claim 1, it is characterised in that：The control loop and three phase mains
The mounting position of line is between chopper switch KZ and relay KM.
3. oil-immersed type transformer air cooling system according to claim 1, it is characterised in that：First circuit includes being additionally provided with
The first single-phase single-phase fuse RD2 of fuse RD1 and second, the first single-phase fuse RD1 be set to three-phase power line with
Between change-over switch SA, the second single-phase fuse RD2 is set between three-phase power line and fuse FR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093263.7A CN106598117B (en) | 2016-11-30 | 2016-11-30 | Oil-immersed type transformer air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093263.7A CN106598117B (en) | 2016-11-30 | 2016-11-30 | Oil-immersed type transformer air cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106598117A CN106598117A (en) | 2017-04-26 |
| CN106598117B true CN106598117B (en) | 2018-10-16 |
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ID=58596172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611093263.7A Expired - Fee Related CN106598117B (en) | 2016-11-30 | 2016-11-30 | Oil-immersed type transformer air cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106598117B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109710004A (en) * | 2018-12-07 | 2019-05-03 | 天津津航计算技术研究所 | A kind of temperature-control circuit applied to airborne equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201256048Y (en) * | 2008-06-03 | 2009-06-10 | 中国西电电气股份有限公司 | Intelligent control device for transformer cooler |
| CN201298176Y (en) * | 2008-11-24 | 2009-08-26 | 山东中瑞电气有限公司 | Oil pump controlling cabinet of transformer cooling fan |
| CN103149956A (en) * | 2013-03-19 | 2013-06-12 | 国家电网公司 | Digital temperature control type air cooler control device for transformer |
| CN103389750B (en) * | 2013-08-08 | 2015-10-28 | 济钢集团有限公司 | A kind of transformer cooling fan control device |
| CN104795206A (en) * | 2015-04-23 | 2015-07-22 | 中冶南方工程技术有限公司 | Method for cooling large oil immersed type rectifier transformer under abnormal heated condition |
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2016
- 2016-11-30 CN CN201611093263.7A patent/CN106598117B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN106598117A (en) | 2017-04-26 |
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