CN201829302U - Energy-saving type transformer cooling system - Google Patents
Energy-saving type transformer cooling system Download PDFInfo
- Publication number
- CN201829302U CN201829302U CN2010205786056U CN201020578605U CN201829302U CN 201829302 U CN201829302 U CN 201829302U CN 2010205786056 U CN2010205786056 U CN 2010205786056U CN 201020578605 U CN201020578605 U CN 201020578605U CN 201829302 U CN201829302 U CN 201829302U
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- cooling system
- transformer
- blower fan
- air
- energy
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Abstract
The utility model discloses an energy-saving type transformer cooling system. The energy-saving type transformer cooling system comprises a transformer main body, frequency converting and speed adjusting fans, finned radiators, a PLC (programmable logic control) air cooling control cabinet and a control cable. Through collecting the control signals of a transformer, such as the top oil temperature, the winding temperature, the load current, and the like, the air quantity required by the actual cooling operation of the system is analyzed, the rotating speeds of the frequency converting and speed adjusting fans are adjusted in real time, the amount of air produced by the fans is maintained to be identical to the air quantity required by the actual cooling operation of the cooling system, and the temperature rise of the transformer cannot exceed the limit value. Compared with the conventional cooling system, the energy-saving type transformer cooling system has the advantages that the energy consumed by the cooling system is reduced, the impact to a power grid caused by the sudden start and the sudden stop of the fans is reduced, and the heat dissipating uniformity of the cooling system is improved.
Description
Technical field
The utility model belongs to field transformer, specifically a kind of Natural Oil Circulation Power transformer cooling system that uses the frequency control blower fan.
Technical background
In the transformer running, produce a large amount of heats, thereby cause that the transformer heating causes temperature to raise owing to there is loss in inside.Under the long term high temperature effect, insulating material will speed up aging, loses its electric strength gradually, thereby influences the normal operation of transformer and the useful life of shortening transformer.Therefore, long-term, reliable, the efficient operation of transformer cooling system is the necessary condition that guarantees the normal operation of transformer.
Under same environmental condition, the transformer temperature rise raises along with the increase of transformer load.In the air-cooled transformer design process, consider the variety of issue of long-time running, usually the foundation of the maximum quantity of wind of system as the selection blower fan.When transformer load changed, for saving the cooling system energy consumption, the fan delivery of cooling system also needed to make corresponding adjustment.Can be by changing blower fan platform number or changing the cooling capacity that separate unit fan delivery dual mode changes cooling system.
The adjustment of conventional air-cooled transformer fan delivery is by realizing by the platform switching fan.The model of blower fan is limited, just needs to select the blower fan model than the big air quantity of requirements when choosing less than suitable blower fan model.In blower fan switching process, surpass limit value for avoiding temperature rise, air quantity also can only to the actual demand value than general orientation on choose, actual required airflow is A
1The time, what blower fan can provide is A near air quantity
2, A then
2＞A
1In addition, blower fan is when design, and its air output will increase a coefficient of safety, that is to say the air quantity of the air quantity of blower fan actual motion much larger than actual demand, and the power consumption of blower fan increases with the increase of air output, so the input power of blower fan increases, and has caused very big energy dissipation.
When transformer load reduces, need the cut-out blower fan, the gilled radiator of cut blower fan institute counterpart, owing to lacked the blowing effect of blower fan, and become from cold state the radiating effect variation.Moreover, because the starting current of blower fan is much larger than rated current, thus its suddenly start and stop can cause certain impact to electrical network.
If control the size of fan delivery by the rotating speed that changes blower motor, the air quantity of blower fan is changed with the variation of loading, make the air output of blower fan equal actual required airflow, just can avoid wasting of electric energy, also reduced of the impact of blower fan frequent start-stop, also can improve the heat radiation uniformity of cooling system simultaneously electrical network.
At present, converter technique is ripe and obtained using widely.If cooling system adopts the blower fan that has the frequency control function, size according to actual required airflow is adjusted supply frequency, changes motor speed, makes the blower fan air output equal actual required airflow, be implemented in the speed governing under the various load change situations, just can reach purpose of energy saving.
Summary of the invention
The purpose of this utility model provide a kind of energy consumption low, the heat radiation uniform a kind of energy saving transformer cooling system.
The technical scheme that the utility model adopted is: a kind of energy saving transformer cooling system, comprise transformer body, frequency control blower fan, gilled radiator, the air-cooled control cubicle of PLC and control cable, gilled radiator is installed on the oil tank wall of transformer body, the frequency control blower fan hangs on the gilled radiator bottom, and frequency control blower fan of the corresponding configuration of per two groups of gilled radiators, the frequency control blower fan is connected with the air-cooled control cubicle of PLC by control cable.
The air-cooled control cubicle of described PLC links to each other with bushing current transformer on the fuel tank top cover that is installed in transformer body by the pasta temperature controller on control cable and the fuel tank top cover that is loaded on transformer body, the winding fiber-optic monitoring system that is installed on the fuel tank top cover of transformer body.
Actual effect of the present utility model is:
1, reduced the energy consumption of cooling system;
2, avoid the frequent starting of motor, reduced the impact of blower fan start and stop electrical network;
3, improved the heat radiation uniformity of cooling system.
Description of drawings
Fig. 1 is a kind of energy saving transformer cooling system schematic diagram.
Fig. 2 is a kind of energy saving transformer cooling system flow chart;
Among the figure: item 1 is the frequency control blower fan; Item 2 is a gilled radiator; Item 3 is the air-cooled control cubicle of PLC; Item 4 is a control cable; Item 5 is a transformer oil surface temperature controller; Item 6 is a bushing current transformer; Item 7 is a Transformer Winding fiber-optic monitoring system.
Embodiment
As shown in Figure 1, a kind of energy saving transformer cooling system comprises transformer body 8, frequency control blower fan 1, gilled radiator 2, the air-cooled control cubicle 3 of PLC and control cable 4; Gilled radiator 2 is installed on the oil tank wall of transformer body, frequency control blower fan 1 hangs on gilled radiator 2 bottoms, and frequency control blower fan 1 of per two groups of gilled radiators, 2 corresponding configurations, frequency control blower fan 1 is connected with the air-cooled control cubicle 3 of PLC by control cable 4, and its rotating speed is controlled by the output signal of the air-cooled control cubicle 3 of PLC.
As shown in Figure 1, 2, the air-cooled control cubicle 3 of described PLC links to each other with bushing current transformer 6 on the fuel tank top cover that is installed in transformer body by the pasta temperature controller 5 on control cable 4 and the fuel tank top cover that is loaded on transformer body, the winding fiber-optic monitoring system 7 that is installed on the fuel tank top cover of transformer body.
The input signal of the air-cooled control cubicle 3 of PLC comprises oily top layer temperature signal, winding temperature signal and load current signal in the utility model; Oil top layer temperature signal inserts the air-cooled control cubicle 3 of PLC by control cable 4 after being exported by the pasta temperature controller on the fuel tank top cover that is installed on transformer body 5; The winding temperature signal inserts the air-cooled control cubicle 3 of PLC by by after 7 outputs of the winding fiber-optic monitoring system on the fuel tank top cover that is installed on transformer body by control cable 4; Load current signal inserts the air-cooled control cubicle 3 of PLC by control cable 4 after being exported by the bushing current transformer on the fuel tank top cover that is installed on transformer body 6.
The default value of the air-cooled control cubicle 3 of PLC is B
1, B
2, and B
1＜B
2, set point is by owner or the decision of transformer producer.As control signal B＜B
1The time, blower fan 1 is out of service, and then transformer is in from cold state; As control signal B
1≤ B≤B
2The time, the blower fan 1 omnidistance speed governing operation of carrying out; As control signal B＞B
2The time, blower fan 1 full speed running.
Claims (2)
1. energy saving transformer cooling system, comprise transformer body (8), frequency control blower fan (1), gilled radiator (2), the air-cooled control cubicle of PLC (3) and control cable (4), it is characterized in that: gilled radiator (2) is installed on the oil tank wall of transformer body, frequency control blower fan (1) hangs on gilled radiator (2) bottom, and the corresponding configuration of per two groups of gilled radiators (a 2) frequency control blower fan (1), frequency control blower fan (1) is connected with the air-cooled control cubicle of PLC (3) by control cable (4).
2. transformer cooling system as claimed in claim 1 is characterized in that: the air-cooled control cubicle of described PLC (3) links to each other with bushing current transformer (6) on the fuel tank top cover that is installed in transformer body by the pasta temperature controller (5) on control cable (4) and the fuel tank top cover that is loaded on transformer body, the winding fiber-optic monitoring system (7) that is installed on the fuel tank top cover of transformer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786056U CN201829302U (en) | 2010-10-22 | 2010-10-22 | Energy-saving type transformer cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205786056U CN201829302U (en) | 2010-10-22 | 2010-10-22 | Energy-saving type transformer cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829302U true CN201829302U (en) | 2011-05-11 |
Family
ID=43967823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205786056U Expired - Fee Related CN201829302U (en) | 2010-10-22 | 2010-10-22 | Energy-saving type transformer cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829302U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671189A (en) * | 2013-09-07 | 2014-03-26 | 国家电网公司 | Main transformer radiator draught fan with intelligent frequency converter |
| CN103808361A (en) * | 2013-10-13 | 2014-05-21 | 国家电网公司 | Multiple-monitoring-sensor-fusion-based transformer air cooling control system |
| CN109074940A (en) * | 2016-04-29 | 2018-12-21 | 西门子股份公司 | Transformer with suspension type refrigerating module |
-
2010
- 2010-10-22 CN CN2010205786056U patent/CN201829302U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671189A (en) * | 2013-09-07 | 2014-03-26 | 国家电网公司 | Main transformer radiator draught fan with intelligent frequency converter |
| CN103808361A (en) * | 2013-10-13 | 2014-05-21 | 国家电网公司 | Multiple-monitoring-sensor-fusion-based transformer air cooling control system |
| CN103808361B (en) * | 2013-10-13 | 2016-08-31 | 国家电网公司 | A kind of transformer air-cooled control system merged based on many monitoring sensors |
| CN109074940A (en) * | 2016-04-29 | 2018-12-21 | 西门子股份公司 | Transformer with suspension type refrigerating module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20171022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |