CN201993184U - Indirect measuring device of oil temperature of transformer - Google Patents
Indirect measuring device of oil temperature of transformer Download PDFInfo
- Publication number
- CN201993184U CN201993184U CN2010206896301U CN201020689630U CN201993184U CN 201993184 U CN201993184 U CN 201993184U CN 2010206896301 U CN2010206896301 U CN 2010206896301U CN 201020689630 U CN201020689630 U CN 201020689630U CN 201993184 U CN201993184 U CN 201993184U
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- transformer
- heat
- oil
- temperature
- measurement system
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Abstract
The utility model discloses a simple and reliable indirect measuring device of the oil temperature of a transformer, which comprises a fixing block and a sensing core. The fixing block comprises a body and a heat-conducting block, wherein the body comprises a magnetic material so that the main body can be attracted on the surface of the transformer through a bottom face; and the heat-conducting block is embedded in the body from the bottom face so that the heat on the surface of the transformer is transferred into the body. The sensing core is partially embedded in the body, and a heat sensor is arranged on the embedded part to measure the heat conducted by the heat-conducting block.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment, especially relates to the indirect measurement system of temperature of oil in transformer.
Background technology
The oily temperature problems of excessive heat of large-scale power transformer is that operation department extremely pays close attention to and one of the major issue that needs to be resolved hurrily.A cardinal rule of transformer execution in service is to realize as much as possible the user is powered continuously.This moment transformer oil hot(test)-spot temperature as surpassing allowable value, not only can influence transformer serviceable life, also will threaten to the transformer safe operation.
In order to guarantee the continuous safe operation of transformer, the transformer user is concerned about the real time data of temperature of oil in transformer under the different situations very much.Temperature of oil in transformer is subjected to the influence of factors such as transformer institute's on-load and environment temperature.Environment temperature is a random variation, and transformer institute on-load also changes.Therefore, must start or stop, to guarantee the requirement of the normal operation of transformer to the oil temperature by the cooling device of in good time control transformer.Past generally is to adopt regularly fixed point to seek indirect measurement means monitoring temperature of oil in transformer such as survey.These means waste time and energy, poor accuracy, and can't realize real-time monitoring.Therefore, simple and reliable, the method for accurately measuring the oil temperature in real time just seems very important.
The utility model content
In order to solve the problem that temperature of oil in transformer monitoring is in real time wasted time and energy, the utility model proposes a kind of indirect measurement system of simple and reliable temperature of oil in transformer.
The indirect measurement system of a kind of temperature of oil in transformer that the utility model proposed comprises fixed block and sensing core.Fixed block comprises body and heat-conducting block, and this body comprises magnetic material, can be adsorbed on the transformer surface by a bottom surface, and this heat-conducting block is inserted in this body from this bottom surface, conducts to this body interior with the heat with the transformer surface.Insert this body interior this sensing core segment, be provided with a thermal sensor in the part of inserting.
In the indirect measurement system of above-mentioned temperature of oil in transformer, comprise a plurality of these heat-conducting blocks.
In the indirect measurement system of above-mentioned temperature of oil in transformer, the material of this heat-conducting block is an aluminium.
In the indirect measurement system of above-mentioned temperature of oil in transformer, this fixed block has a screw, and this of this sensing core inserted part and be hollow screw, and this thermal sensor is located at the inner chamber of this hollow screw.
In the indirect measurement system of above-mentioned temperature of oil in transformer, this thermal sensor has data line, extends to part outside the body that this sensing core is positioned at fixed block by this hollow screw.
In the indirect measurement system of above-mentioned temperature of oil in transformer, this thermal sensor encapsulates by heat-conducting glue.
In the indirect measurement system of above-mentioned temperature of oil in transformer, the material of this hollow screw is an aluminium.
The indirect measurement system of the temperature of oil in transformer of the above technical scheme of the utility model, mounting means is simple, can be adsorbed in the transformer surface arbitrarily.Adopt the data-interface mode to carry out data read simultaneously for external unit, simple and reliable.
Description of drawings
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, wherein:
Fig. 1 is the synoptic diagram that the measurement device of oil tempera of the utility model one embodiment is installed on transformer.
Fig. 2 illustrates the exploded view of the measurement device of oil tempera of the utility model one embodiment.
Fig. 3 illustrates the fixed-block-architecture (FBA) of the measurement device of oil tempera of the utility model one embodiment.
Fig. 4 illustrates the sensing cored structure of the measurement device of oil tempera of the utility model one embodiment.
Embodiment
Fig. 1 is the synoptic diagram that the measurement device of oil tempera of the utility model one embodiment is installed on transformer.In Fig. 1, the local surfaces 100 of transformer is shown, measurement device of oil tempera 200 is arranged on the local surfaces 100 of transformer.
In conjunction with exploded view with reference to measurement device of oil tempera shown in Figure 3.Measurement device of oil tempera 200 comprises fixed block 210 and sensing core 220, and wherein sensing core 220 parts are inserted in the fixed block 210, to be assembled into an integral body.
Fixed block 210 can comprise magnetic material, and perhaps the part is made by magnetic material, so that magnetic adsorbability to be provided.Because the material on transformer surface 100 is generally metal, so fixed block 210 can rely on magnetic to be adsorbed on transformer surface 100.
Fig. 3 illustrates the fixed-block-architecture (FBA) of the measurement device of oil tempera of the utility model one embodiment.With reference to shown in Figure 3, fixed block 210 comprises body 212 and heat-conducting block 214.Body 212 on the make can the doped magnetic material, to have magnetic force.Perhaps, body 212 can be a magnet.Like this, body 212 can be adsorbed on transformer surface 100 by a bottom surface 212a.
Bottom surface 213 can have one or more groove 212b, inserts in the body from this bottom surface to make heat-conducting block 214.In embodiment of the present utility model, heat-conducting block 214 is selected the thermal conductivity good metal, aluminium for example, by with the applying on transformer surface 100, heat-conducting block 214 can conduct to body interior with the heat on transformer surface.The quantity of heat-conducting block 214 can be one or more (shown in figure 4), in the utility model, this is not limited.
In addition, body 212 has slotted hole 212c, inserts fixed block inside with what allow sensing core 220 parts, and sensing core 220 is provided with a thermal sensor in the part of inserting.Detect the heat that conducts to body 212 inside by heat-conducting block 214 by thermal sensor, learn the temperature on transformer surface thus, thereby learn the oil temperature of transformer indirectly.
Fig. 4 illustrates the sensing cored structure of the measurement device of oil tempera of the utility model one embodiment.With reference to shown in Figure 4, the major part of sensing core 220 is a hollow screw 222, and this part is inserted in the slotted hole 212c of fixed block body 212.Corresponding, slotted hole 212c is a screw, and screws togather between the screw rod 222.Aforesaid thermal sensor 224 is positioned at the top of chamber of aluminium screw rod, and fixing by heat-conducting glue 226 encapsulation.Be similar to aforesaid heat-conducting block 214, the material of hollow screw 222 is a metal, and aluminium for example is so that heat conducts to thermal sensor 224.
In addition, thermal sensor 224 has data line 225, extends to the sensing core by hollow screw 222 and is positioned at part 228 outside the fixed block.
Is digital signal output by thermal sensor with the temperature transition that records, and finally reads for the outside by data-interface (as 485 interfaces), with monitorings in real time such as realization on-line monitorings.
The indirect measurement system of temperature of oil in transformer of the present utility model, owing to can be adsorbed on the transformer arbitrarily, thereby can freely select the use location according to the monitoring needs.And, use the indirect measurement system of this temperature of oil in transformer, easy to operate, for example adopt the data-interface mode of 485 interfaces to carry out data read for the outside, simple and reliable.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (7)
1. the indirect measurement system of a temperature of oil in transformer is characterized in that comprising:
Fixed block comprises body and heat-conducting block, and this body comprises magnetic material, can be adsorbed on the transformer surface by a bottom surface, and this heat-conducting block is inserted in this body from this bottom surface, conducts to this body interior with the heat with the transformer surface; And
The sensing core is partly inserted this body interior, is provided with a thermal sensor in the part of inserting.
2. the indirect measurement system of temperature of oil in transformer as claimed in claim 1 is characterized in that, comprises a plurality of these heat-conducting blocks.
3. the indirect measurement system of temperature of oil in transformer as claimed in claim 1 is characterized in that, the material of this heat-conducting block is an aluminium.
4. the indirect measurement system of temperature of oil in transformer as claimed in claim 1 is characterized in that, this fixed block has a screw, and this of this sensing core inserted part and be hollow screw, and this thermal sensor is located at the inner chamber of this hollow screw.
5. the indirect measurement system of temperature of oil in transformer as claimed in claim 4 is characterized in that, this thermal sensor has data line, extends to part outside the body that this sensing core is positioned at fixed block by this hollow screw.
6. the indirect measurement system of temperature of oil in transformer as claimed in claim 4 is characterized in that, this thermal sensor encapsulates by heat-conducting glue.
7. the indirect measurement system of temperature of oil in transformer as claimed in claim 1 is characterized in that, the material of this hollow screw is an aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206896301U CN201993184U (en) | 2010-12-30 | 2010-12-30 | Indirect measuring device of oil temperature of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206896301U CN201993184U (en) | 2010-12-30 | 2010-12-30 | Indirect measuring device of oil temperature of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993184U true CN201993184U (en) | 2011-09-28 |
Family
ID=44669670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206896301U Expired - Fee Related CN201993184U (en) | 2010-12-30 | 2010-12-30 | Indirect measuring device of oil temperature of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674310A (en) * | 2012-09-26 | 2014-03-26 | 中国人民解放军第二炮兵工程大学 | Oil temperature measurement method based on oil tube surface temperature measurement |
| CN104280146A (en) * | 2014-10-23 | 2015-01-14 | 国家电网公司 | Contact type temperature alarm for transformer substation |
-
2010
- 2010-12-30 CN CN2010206896301U patent/CN201993184U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674310A (en) * | 2012-09-26 | 2014-03-26 | 中国人民解放军第二炮兵工程大学 | Oil temperature measurement method based on oil tube surface temperature measurement |
| CN103674310B (en) * | 2012-09-26 | 2016-01-20 | 中国人民解放军第二炮兵工程大学 | A kind of fuel temperature measurement method based on oil pipe surface temperature measurement |
| CN104280146A (en) * | 2014-10-23 | 2015-01-14 | 国家电网公司 | Contact type temperature alarm for transformer substation |
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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: 20110928 Termination date: 20181230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |