CN2452102Y - Transverse flow multistage regulating air cooling apparatus for dry type transformer - Google Patents
Transverse flow multistage regulating air cooling apparatus for dry type transformer Download PDFInfo
- Publication number
- CN2452102Y CN2452102Y CN 00260507 CN00260507U CN2452102Y CN 2452102 Y CN2452102 Y CN 2452102Y CN 00260507 CN00260507 CN 00260507 CN 00260507 U CN00260507 U CN 00260507U CN 2452102 Y CN2452102 Y CN 2452102Y
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- China
- Prior art keywords
- multistage
- cross
- dry
- type transformer
- air cooling
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Abstract
The utility model relates to a transverse flow type multistage regulating air cooling device for a dry-type transformer, which is composed of a temperature sensing component which is buried on a coil, a multi-stage temperature control device, and a multi-stage tap speed regulating transverse flow type blower, wherein, the temperature signals sensed by the temperature sensing component are input into the multi-stage temperature control device, and multiple control signals emitted by a group of relays are transmitted to a tap corresponding to a blower winding group after the signals are processed; six blowers are arranged on the bottom of a three-phase transformer; the front and the back of each winding group are respectively provided with a blower. The utility model has the advantages of simple structure and convenient control, and furthermore, the utility model can provide reasonable cooling air flow according to actual requirements, and thereby, the effect of energy saving and noise reducing can be achieved.
Description
The utility model relates to the cooling technology field of dry-type transformer, the multistage adjusting air cooling equipment of the cross-flow type that particularly a kind of dry-type transformer is used.
In order to make dry-type transformer, need take the effective high wind type of cooling to go to reduce the working temperature of transformer coil in electricity consumption peak phase 40% intermitten operation that overloads.The cross-flow type air cooling equipment that existing a kind of dry-type transformer is used is made up of temperature-sensing element, single-stage attemperating unit, cooling blower.Temperature-sensing element is measured Transformer Winding Temperature Rise and is converted the signal of telecommunication to and is sent in the single-stage temperature control equipment, and the signal of telecommunication is controlled the startup of cooling blower and stopped according to predefined some temperature values after attemperating unit is handled.These cross-flow type cooling blowers carry out forced air cooling to transformer coil.Because this blower fan has only a fixed rotating speed, temperature control also can only have a temperature controlling value output, thereby after the dry-type transformer coil winding temperature rise meets or exceeds preset temperature value, this blower fan is just with constant rotational speed work, in general be with rated speed work, when the low-temperature space of a little higher than preset temperature value is worked, will cause the waste of energy like this when transformer coil, and the higher NOISE ON ENVIRONMENT that continues has also caused pollution.
The multistage adjusting air cooling equipment of cross-flow type that provides a kind of dry-type transformer energy-conservation, low noise to use is provided the purpose of this utility model, and it can supply with rational cooling wind pressure and air quantity according to the actual temperature rise of transformer coil.
The purpose of this utility model is achieved in that the multistage adjusting air cooling equipment of cross-flow type that a kind of dry-type transformer is used, comprise cross-flow fan, attemperating unit and be embedded in temperature-sensing element on the dry-type transformer coil, described cross-flow fan is multistage tap speed governing cross-flow fan, described attemperating unit is multistage attemperating unit, temperature-sensing element reaches the input of multistage attemperating unit by lead with temperature signal, and attemperating unit is transported to a plurality of control signals in the corresponding tap of cross-flow fan winding from output.Described multistage tap speed governing cross-flow fan is contained under the dry-type transformer on the underframe, the coil on corresponding each the post core of its air outlet.Described multistage attemperating unit is contained on the dry-type transformer upper clamping piece.The motor windings of described multistage tap speed governing cross-flow fan is provided with 2-4 tap.Described multistage attemperating unit is respectively to 2-4 control signal of every typhoon machine output.
Advantage of the present utility model is simple and reasonable, and control is convenient, provides rational cooling air quantity for reducing the too high temperature rise of dry-type transformer, thereby reaches the effect of energy-saving and noise-reducing.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the utility model control principle figure.
By following embodiment the utility model is further elaborated.
Described referring to Fig. 1, Fig. 2, the multistage adjusting air cooling equipment of cross-flow type that embodiment dry-type transformer of the utility model is used is made up of temperature-sensing element 4, multistage attemperating unit 2, multistage tap speed governing cross-flow fan 6.Respectively be embedded with a temperature-sensing element 4 in the insulating barrier of three coils 3 of dry-type transformer, thermistor for example, this temperature-sensing element 4 is communicated with multistage attemperating unit 2 inputs on being fixed on transformer upper clamping piece 1 by lead 5, multistage attemperating unit 2 is exported 2-4 control signal respectively from output C1 after treatment and is separately fixed under the dry-type transformer on the underframe 7 for every multistage tap speed governing cross-flow fan 6, these blower fans 6 and is respectively in three coil both sides.The motor windings of multistage tap speed governing cross-flow fan 6 is provided with 2-4 tap, and present embodiment is established 3 taps, and 3 control signals with multistage attemperating unit 2 output C1 output are connected respectively.Multistage attemperating unit 2 output C2 output overtemperature trip signal, an output C3 export an overtemperature alarm signal, and the relevant actuator of control carries out overtemperature prote to dry-type transformer, and notifies the staff that power load is adjusted.
The concrete course of work of the multistage adjusting air cooling equipment of present embodiment is as follows: regulate air-cooled with three grades and be example, at first multistage temperature control equipment set three operating temperature value: T1=80 ℃ ± 5 ℃; T2=100 ℃ ± 5 ℃; T3=120 ℃ ± 5 ℃.Temperature-sensing element 4 is measured the Transformer Winding Current Temperatures and is converted the signal of telecommunication to and reaches multistage attemperating unit 2, thermostat in this device compares temperature signal of importing and the temperature value (T1=80 ℃ ± 5 ℃) that presets and amplifies, when reaching the start-up temperature of setting, 1. relay in the device moves, and blower fan 6 beginnings are with low cruise.As this moment air quantity still fail to satisfy transformer coil cooling requirement, coil temperature continues to raise, when reaching second set point T2=100 of thermostat ℃ ± 5 ℃, 2. relay moves, control blower fan 6 is with middling speed work.As still not satisfying coil cooling requirement, coil temperature continues to rise, and when reaching the 3rd set point T3=120 ℃ ± 5 ℃, 3. relay moves, and control blower fan 6 is with the 3rd speed work.When dry-type transformer lowers coil temperature rise because of load reduces gradually, if when reducing to below 70 ℃, blower fan 6 just quits work, thereby has realized reasonable air feed, and the noise reduction purpose of energy saving.Simultaneously also prevent the blower motor Fraquent start, prolonged the useful life of motor.
Claims (5)
1, the multistage adjusting air cooling equipment of cross-flow type used of a kind of dry-type transformer, comprise cross-flow fan, attemperating unit and be embedded in temperature-sensing element on the dry-type transformer coil, it is characterized in that: described cross-flow fan is multistage tap speed governing cross-flow fan, described attemperating unit is multistage attemperating unit, temperature-sensing element reaches the input of multistage attemperating unit by lead with temperature signal, and attemperating unit is transported to a plurality of control signals in the corresponding tap of cross-flow fan winding from output.
2, the multistage adjusting air cooling equipment of cross-flow type used of dry-type transformer according to claim 1 is characterized in that: described multistage tap speed governing cross-flow fan is contained under the dry-type transformer on the underframe, the coil on corresponding each the post core of its air outlet.
3, the multistage adjusting air cooling equipment of cross-flow type used of dry-type transformer according to claim 1, it is characterized in that: described multistage attemperating unit is contained on the dry-type transformer upper clamping piece.
4, the multistage adjusting air cooling equipment of cross-flow type used of dry-type transformer according to claim 1 is characterized in that the motor windings of described multistage tap speed governing cross-flow fan is provided with 2-4 tap.
5, the multistage adjusting air cooling equipment of cross-flow type used of dry-type transformer according to claim 1 is characterized in that, described multistage attemperating unit is respectively to 2-4 control signal of every typhoon machine output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260507 CN2452102Y (en) | 2000-11-23 | 2000-11-23 | Transverse flow multistage regulating air cooling apparatus for dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260507 CN2452102Y (en) | 2000-11-23 | 2000-11-23 | Transverse flow multistage regulating air cooling apparatus for dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2452102Y true CN2452102Y (en) | 2001-10-03 |
Family
ID=33616290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00260507 Expired - Lifetime CN2452102Y (en) | 2000-11-23 | 2000-11-23 | Transverse flow multistage regulating air cooling apparatus for dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2452102Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2304745A1 (en) * | 2008-06-05 | 2011-04-06 | Sakari Peltoniemi | Emc protection for a distribution transformer |
| CN102723168A (en) * | 2012-06-11 | 2012-10-10 | 常熟市常源变压器有限公司 | Dry type transformer |
| CN103591040A (en) * | 2013-11-18 | 2014-02-19 | 国家电网公司 | Draught fan starting and stopping control method of natural oil circulation air cooled transformer |
| CN103277871B (en) * | 2013-05-07 | 2015-12-02 | 珠海铨高机电设备有限公司 | Outdoor fan of air-conditioner speed-regulating control device |
| CN109346277A (en) * | 2018-10-31 | 2019-02-15 | 国网上海市电力公司 | A kind of pair of transformer room carries out automatic temperature-controlled method |
| EP3893255A1 (en) * | 2020-04-09 | 2021-10-13 | Tecsystem S.r.l. | Heat control system of a transformer |
-
2000
- 2000-11-23 CN CN 00260507 patent/CN2452102Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2304745A1 (en) * | 2008-06-05 | 2011-04-06 | Sakari Peltoniemi | Emc protection for a distribution transformer |
| EP2304745A4 (en) * | 2008-06-05 | 2014-04-09 | Rentratek Oy | Emc protection for a distribution transformer |
| CN102723168A (en) * | 2012-06-11 | 2012-10-10 | 常熟市常源变压器有限公司 | Dry type transformer |
| CN103277871B (en) * | 2013-05-07 | 2015-12-02 | 珠海铨高机电设备有限公司 | Outdoor fan of air-conditioner speed-regulating control device |
| CN103591040A (en) * | 2013-11-18 | 2014-02-19 | 国家电网公司 | Draught fan starting and stopping control method of natural oil circulation air cooled transformer |
| CN103591040B (en) * | 2013-11-18 | 2016-04-06 | 国家电网公司 | A kind of blower fan start-stop controlling method of Natural Oil Circulation Power air-cooled transformer |
| CN109346277A (en) * | 2018-10-31 | 2019-02-15 | 国网上海市电力公司 | A kind of pair of transformer room carries out automatic temperature-controlled method |
| EP3893255A1 (en) * | 2020-04-09 | 2021-10-13 | Tecsystem S.r.l. | Heat control system of a transformer |
| WO2021205375A1 (en) * | 2020-04-09 | 2021-10-14 | Tecsystem S.R.L. | Heat control system of a transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101123 Granted publication date: 20011003 |