CN206931464U - A kind of high pressure winding of pre-buried fiber grating - Google Patents
A kind of high pressure winding of pre-buried fiber grating Download PDFInfo
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- CN206931464U CN206931464U CN201720774208.8U CN201720774208U CN206931464U CN 206931464 U CN206931464 U CN 206931464U CN 201720774208 U CN201720774208 U CN 201720774208U CN 206931464 U CN206931464 U CN 206931464U
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- fiber grating
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- high pressure
- coil
- pressure winding
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Abstract
The utility model embodiment discloses a kind of high pressure winding of pre-buried fiber grating, including：Wire and fiber grating；The cross section of the wire is shaped as round rectangle；The wire, which is wrapped on mould, forms coil；The turn-to-turn of the coil forms groove；The fiber grating is arranged in groove；The coil forms the high pressure winding.In the present embodiment, temperature multimetering is realized using fiber grating, reduces volume shared by temperature sensor.Also, the fiber grating insertion turn-to-turn of coil and it is integral, protect fiber grating not acted on by any power, measurement result is more accurately and reliably；Improved using the turn-to-turn entirety operability of fiber grating insertion coil, be advantageous to improve transformer entirety critical process；Simple in construction, technique is advanced, and reliable in quality is cost-effective.
Description
Technical field
It the utility model is related to power equipment winding field, more particularly to a kind of high pressure winding of pre-buried fiber grating.
Background technology
In the case where distribution transformer top-oil temperature is in normal level, the hot(test)-spot temperature of high pressure winding may occur
Hot-spot.High pressure winding overheat can cause the decomposition of oil at this and produce bubble, and overheat is repeated several times in addition can also cause this
Locate the cumulative aging of minor insulation, most cause insulation breakdown at last and damage transformer.Therefore the angle of slave unit safety is examined
Consider, the effectively monitoring of high pressure hot spot temperature of winding is significant.
Top-oil temperature in high pressure winding may be higher 15K than the mixing top-oil temperature in fuel tank, this size of the difference and cooling
Mode is relevant.The temperature difference more than 10K is being might have at the top of normal high pressure winding at diverse location, therefore, is being only inserted 1~3
Sensor may not detect real focus greatly very much, it is necessary to which largely insertion probe is to find optimum position, in each needs
Install sensor on the high pressure winding of direct measurement hot(test)-spot temperature.However, placed during existing high pressure winding detection hot(test)-spot temperature
Many sensors are difficult very big in distribution transforming high pressure winding, can influence the electric property of high pressure winding.
Utility model content
The utility model embodiment discloses a kind of high pressure winding of pre-buried fiber grating, solves detection high pressure winding heat
Place that many sensors are difficult very big in distribution transforming high pressure winding during point temperature, the electric property that can influence high pressure winding is asked
Topic.
The utility model embodiment provides a kind of high pressure winding of pre-buried fiber grating, including：Wire and fiber grating；
The cross section of the wire is shaped as round rectangle；
The wire, which is wrapped on mould, forms coil；
The turn-to-turn of the coil forms groove；
The fiber grating is arranged in groove；
The coil forms the high pressure winding.
Preferably, the coil is two layers.
Preferably, the groove is V-type groove.
As can be seen from the above technical solutions, the utility model embodiment provides a kind of high voltage winding of pre-buried fiber grating
Group, including：Wire and fiber grating；The cross section of the wire is shaped as round rectangle；The wire is wrapped on mould
Form coil；The turn-to-turn of the coil forms groove；The fiber grating is arranged in groove；The coil forms the high pressure
Winding.In the present embodiment, the multimetering of temperature is realized using fiber grating, volume shared by reduction temperature sensor, is avoided that
Electromagnetic interference and the influence to transformer insulated performance, measurement result is more accurately and reliably.It can be obtained in transformer whole
Profiling temperatures in transformer, so as to more accurately predict hotspot location and hot(test)-spot temperature, be advantageous to the peace of transformer
Row for the national games.Also, the fiber grating insertion turn-to-turn of coil and it is integral, protect fiber grating not acted on by any power；Adopt
Improved with the turn-to-turn entirety operability of fiber grating insertion coil, be advantageous to improve transformer entirety critical process；Structure letter
Single, technique is advanced, reliable in quality, cost-effective.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the wire shape signal in a kind of high pressure winding of pre-buried fiber grating in the utility model embodiment
Figure；
Fig. 2 is the fiber grating position signal in a kind of high pressure winding of pre-buried fiber grating of the utility model embodiment
Figure；
Fig. 3 is the winding schematic diagram in a kind of high pressure winding of pre-buried fiber grating of the utility model embodiment.
Illustrate, the groove of 1. wire, 2. fiber grating 3..
Embodiment
The utility model embodiment discloses a kind of high pressure winding of pre-buried fiber grating, solves detection high pressure winding heat
Place that many sensors are difficult very big in distribution transforming high pressure winding during point temperature, the electric property that can influence high pressure winding is asked
Topic.
Fig. 1~3 are referred to, the utility model embodiment provides a kind of high pressure winding of pre-buried fiber grating, including：Lead
Line 1 and fiber grating 2；
The cross section of wire 1 is shaped as round rectangle；
Wire 1, which is wrapped on mould, forms coil；
The turn-to-turn of coil forms groove 3；
Fiber grating 2 is arranged in groove 3；
Coil forms high pressure winding.
The present embodiment can measure the temperature at specific each position in winding, by between the temperature and temperature spot of difference
Situation of change, find out hot(test)-spot temperature particular location in winding, there is provided a kind of simple in construction, advanced fiber grating 2 of technique, energy
The coiling that enough followed by winding is arranged in diverse location.Temperature multimetering can be realized using fiber grating 2, reduces TEMP
Volume shared by device, and electromagnetic interference and the influence to transformer insulated performance are avoided that, measurement result is more accurately and reliably.Becoming
The profiling temperatures in whole transformer can be obtained in depressor, so as to more accurately predict hotspot location and focus temperature
Degree, is advantageous to the safe operation of transformer.And pressure and pulling force suffered by fiber grating 2 can be reduced, moreover it is possible to effectively profit
With the space of coil turn-to-turn.
A kind of above is one embodiment of the high pressure winding of the embedded fiber grating provided the utility model embodiment
Be described in detail, below by the utility model embodiment is provided one insertion fiber grating high pressure winding another
Embodiment is described in detail.
Refer to Fig. 2~3, a kind of high pressure winding for embedded fiber grating that the utility model embodiment provides another
Embodiment, including：Wire 1 and fiber grating 2；
The cross section of wire 1 is shaped as round rectangle；
Wire 1, which is wrapped on mould, forms coil；
The turn-to-turn of coil forms groove 3；
Fiber grating 2 is arranged in groove 3；
Coil forms high pressure winding.
Further, two layers of coil.
Groove 3 is V-type groove.
In the present embodiment, wire 1 is strip conductor, and the cross section of strip conductor is round rectangle, there is four fillets, winding around
When processed, wire 1, which is wrapped on mould, forms coil, and the turn-to-turn of coil forms V-type groove, and it is recessed that fiber grating 2 is wound on this V-type
In groove, it is in contact with wire 1, fiber grating 2 is closely wound on winding by the order of coiling, is arranged in the coiling of winding
Diverse location.
Wire 1, which is wrapped on mould, forms coil, and the turn-to-turn of coil forms V-type groove, and fiber grating 2 is wound on this V
In type groove, coil forms high pressure winding.Wire 1 is wound two layers, in two layers of all turn-to-turns all winding optical fiber gratings 2, optical fiber
The turn-to-turn of winding coil is embedded in grating 2, while around while place fiber grating 2, be staggeredly located, reach in coiling height on thickness not
Fiber grating 2 is set with position, main monitoring object is the intermediate layer difference temperature of high pressure winding.According to transformer temperature point
Cloth feature, fiber grating 2 are embedded in the radial diverse location in axial direction of winding, drawn by optical fiber interface plate, incoming fiber optic light
Grid sense analyzer；Communicated after optical fiber grating sensing analyzer demodulation temperature signal by serial ports with host computer, realize data
Collection.
The present embodiment can realize multimetering using fiber grating 2, and wire 1, which is wrapped on mould, forms coil, coil
Turn-to-turn forms V-type groove, and fiber grating 2 is wound in this V-type groove, is effectively utilized the space of coil, reduces temperature and passes
Volume shared by sensor, and electromagnetic interference and the influence to transformer insulated performance are avoided that, measurement result is more accurately and reliably.Light
Fine grating 2 is arranged in V-type groove, is evenly distributed, and can effectively measure each spot temperature distribution situation in winding.In transformer
In can obtain profiling temperatures in whole transformer, so as to more accurately prediction hotspot location and hot(test)-spot temperature, have
Beneficial to the safe operation of transformer.Using the coil turn-to-turn of the insertion wire coiling of fiber grating 2 into entirety, optical fiber light is protected
Grid 2 are not acted on by any power.Improved using the coil turn-to-turn entirety operability of the insertion wire coiling of fiber grating 2, favorably
In improving transformer entirety critical process, and simple in construction, technique is advanced, reliable in quality, cost-effective.
Fig. 3 is the winding schematic diagram of the utility model embodiment.Fiber grating very easily can be wound on coil, also
Fiber-optic grating sensor can be independently selected to realize multi-point monitoring gathered data in axis of winding, radial each pre-buried position,
Meet requirement of engineering well.
A kind of high pressure winding of pre-buried fiber grating provided by the utility model is described in detail above, for
Those of ordinary skill in the art, the thought of foundation the utility model embodiment, in specific embodiments and applications
It will change, in summary, this specification content should not be construed as to limitation of the present utility model.
Claims (3)
- A kind of 1. high pressure winding of pre-buried fiber grating, it is characterised in that including：Wire and fiber grating；The cross section of the wire is shaped as round rectangle；The wire, which is wrapped on mould, forms coil；The turn-to-turn of the coil forms groove；The fiber grating is arranged in groove；The coil forms the high pressure winding.
- 2. high pressure winding according to claim 1, it is characterised in that the coil is two layers.
- 3. high pressure winding according to claim 1, it is characterised in that the groove is V-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774208.8U CN206931464U (en) | 2017-06-29 | 2017-06-29 | A kind of high pressure winding of pre-buried fiber grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720774208.8U CN206931464U (en) | 2017-06-29 | 2017-06-29 | A kind of high pressure winding of pre-buried fiber grating |
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| Publication Number | Publication Date |
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| CN206931464U true CN206931464U (en) | 2018-01-26 |
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| CN201720774208.8U Active CN206931464U (en) | 2017-06-29 | 2017-06-29 | A kind of high pressure winding of pre-buried fiber grating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489960A (en) * | 2020-10-14 | 2021-03-12 | 特变电工股份有限公司 | Coil structure, manufacturing method thereof and transformer |
-
2017
- 2017-06-29 CN CN201720774208.8U patent/CN206931464U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112489960A (en) * | 2020-10-14 | 2021-03-12 | 特变电工股份有限公司 | Coil structure, manufacturing method thereof and transformer |
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