CN2453524Y - Horizontal flow, stepless regulation type air cooling device for dry type transformer - Google Patents
Horizontal flow, stepless regulation type air cooling device for dry type transformer Download PDFInfo
- Publication number
- CN2453524Y CN2453524Y CN 00260506 CN00260506U CN2453524Y CN 2453524 Y CN2453524 Y CN 2453524Y CN 00260506 CN00260506 CN 00260506 CN 00260506 U CN00260506 U CN 00260506U CN 2453524 Y CN2453524 Y CN 2453524Y
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- dry
- cross
- variable
- type transformer
- temperature
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Abstract
The utility model relates to a crossflow type stepless regulating air cooling device for a dry type transformer, which is composed of a temperature sensing component which is buried on a coil, a temperature control device, a frequency changing speed regulator, and a speed-adjustable crossflow blower, wherein, the temperature signal sensed by the temperature sensing component are input to the temperature control device, and the device transmits the control signals to the frequency changing speed regulator; power supplies with different frequencies are input into the speed-adjustable crossflow blower; six blowers are arranged on the bottom of a three-phase transformer; speed and wind are uniformly regulated by the frequency changing speed regulator. The utility model has the advantages of simple and reasonable 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 cross-flow type step-less adjustment air cooling equipment 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 cross-flow type step-less adjustment air cooling equipment 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 the most 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 cross-flow type step-less adjustment air cooling equipment 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 the variable-ratio cross-flow fan, between attemperating unit and variable-ratio cross-flow fan, be connected to variable-frequency governor, temperature-sensing element reaches attemperating unit by lead with temperature signal and handles, convert the input signal of variable-frequency governor to, control signal is imported the variable-ratio cross-flow fan by variable-frequency governor.Described variable-ratio 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 attemperating unit is contained on the dry-type transformer upper clamping piece.Described variable-frequency governor is contained under the transformer on the underframe.
Advantage of the present utility model is simple and reasonable, and control is convenient, provides the most rational cooling wind pressure and air quantity for reducing the too high temperature rise of dry-type transformer, thereby reaches the remarkable result of energy-saving and noise-reducing.Particular noise and the heavy current impact of simultaneously also having avoided the blower fan Fraquent start to cause have prolonged useful life of blower fan.
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.
Referring to Fig. 1, shown in Figure 2, the cross-flow type step-less adjustment air cooling equipment that embodiment dry-type transformer of the utility model is used is made up of temperature-sensing element 4, attemperating unit 2, variable-frequency governor 8, adjustable speed 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 attemperating unit 2 inputs on being fixed on transformer upper clamping piece 1 by lead 5, attemperating unit 2 output C1 output control signal is given variable-frequency governor 8 inputs, its output is connected with three adjustable speed cross-flow fans 6 of homonymy, and six typhoon machines 6 are separately fixed at and also list in three coil both sides under the dry-type transformer on the underframe 7 respectively.During blower fan work, cold wind is blown in the air gap of coil bottom, and hot blast blows out from coil top and takes away heat after the heat exchange, and winding coil has been carried out effective cooling.In addition, 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 present embodiment step-less adjustment air cooling equipment is as follows: when transformer coil 3 temperature rose to 80 ℃ ± 5 ℃ of the setting operating temperatures of temperature control equipment 2, attemperating unit made variable speed fan 6 startings and have lower rotating speed under a certain supply frequency by the variable-frequency governor 8 that is attached thereto.When coil temperature continued to raise, attemperating unit 2 and variable-frequency governor 8 increased supply frequency, and variable speed fan 6 rotating speeds increase, and enough air quantity are provided.An amount of cooling forces coil temperature to reduce.When coil temperature reduced, attemperating unit 2 and variable-frequency governor 8 also decreased supply frequency, and variable speed fan 6 rotating speeds reduce, and after coil temperature was lower than 70 ℃, blower fan quit work.
Claims (4)
1, the cross-flow type step-less adjustment air cooling equipment 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 the variable-ratio cross-flow fan, between attemperating unit and variable-ratio cross-flow fan, be connected to variable-frequency governor, temperature-sensing element reaches attemperating unit by lead with temperature signal and handles, convert the input signal of variable-frequency governor to, control signal is imported the variable-ratio cross-flow fan by variable-frequency governor.
2, the cross-flow type step-less adjustment air cooling equipment used of dry-type transformer according to claim 1 is characterized in that: described variable-ratio 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 cross-flow type step-less adjustment air cooling equipment used of dry-type transformer according to claim 1, it is characterized in that: described attemperating unit is contained on the dry-type transformer upper clamping piece.
4, the cross-flow type step-less adjustment air cooling equipment used of dry-type transformer according to claim 1 is characterized in that described variable-frequency governor is contained under the transformer on the underframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260506 CN2453524Y (en) | 2000-11-23 | 2000-11-23 | Horizontal flow, stepless regulation type air cooling device for dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00260506 CN2453524Y (en) | 2000-11-23 | 2000-11-23 | Horizontal flow, stepless regulation type air cooling device for dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453524Y true CN2453524Y (en) | 2001-10-10 |
Family
ID=33616289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00260506 Expired - Lifetime CN2453524Y (en) | 2000-11-23 | 2000-11-23 | Horizontal flow, stepless regulation type air cooling device for dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453524Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005284A (en) * | 2010-10-08 | 2011-04-06 | 南京苏特电气股份有限公司 | Triangular dry type transformer with overhead radiator |
| CN104200956A (en) * | 2014-09-04 | 2014-12-10 | 特变电工西安电气科技有限公司 | Regulating and controlling system and method for fan of three-phase transformer |
| CN104595225A (en) * | 2015-01-29 | 2015-05-06 | 国家电网公司 | Dry transformer cooling fan with intelligent frequency conversion function and operation method thereof |
| CN105428010A (en) * | 2015-11-30 | 2016-03-23 | 宁国市睿普磁电科技有限公司 | Novel environment-friendly and energy-saving transformer with high cooling performance |
| CN106920641A (en) * | 2017-04-21 | 2017-07-04 | 青海送变电工程公司 | A kind of method of use air-duct-type air-conditioner to dry-type transformer forced cooling |
-
2000
- 2000-11-23 CN CN 00260506 patent/CN2453524Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005284A (en) * | 2010-10-08 | 2011-04-06 | 南京苏特电气股份有限公司 | Triangular dry type transformer with overhead radiator |
| CN104200956A (en) * | 2014-09-04 | 2014-12-10 | 特变电工西安电气科技有限公司 | Regulating and controlling system and method for fan of three-phase transformer |
| CN104595225A (en) * | 2015-01-29 | 2015-05-06 | 国家电网公司 | Dry transformer cooling fan with intelligent frequency conversion function and operation method thereof |
| CN104595225B (en) * | 2015-01-29 | 2016-06-01 | 国家电网公司 | There is dry-type transformer cooling fan and the operation method thereof of intelligent frequency-conversion function |
| CN105428010A (en) * | 2015-11-30 | 2016-03-23 | 宁国市睿普磁电科技有限公司 | Novel environment-friendly and energy-saving transformer with high cooling performance |
| CN106920641A (en) * | 2017-04-21 | 2017-07-04 | 青海送变电工程公司 | A kind of method of use air-duct-type air-conditioner to dry-type transformer forced cooling |
| CN106920641B (en) * | 2017-04-21 | 2018-12-21 | 青海送变电工程公司 | A method of using air-duct-type air-conditioner to dry-type transformer forced cooling |
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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: 20011010 |