CN206096422U - Bearing structure suitable for flexible installation formula optics current transformer - Google Patents
Bearing structure suitable for flexible installation formula optics current transformer Download PDFInfo
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- CN206096422U CN206096422U CN201621079960.2U CN201621079960U CN206096422U CN 206096422 U CN206096422 U CN 206096422U CN 201621079960 U CN201621079960 U CN 201621079960U CN 206096422 U CN206096422 U CN 206096422U
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- main casing
- mutual inductor
- current mutual
- flexible installing
- supporting construction
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Abstract
The utility model discloses a bearing structure suitable for flexible installation formula optics current transformer, a serial communication port, include the main casing body and the apron of block each other, the main casing body is provided with the toroidal cavity who is used for placing flexible installation formula optics current transformer's sensing fiber, the main casing body is two lamella structures, and one of them lamella is provided with buckle or fastening screw at the side, be provided with on another lamella with the sealed terminal of the communicating optic fibre of toroidal cavity, the apron and the outside of the common parcel of main casing body block at sensing fiber. To the effect that flexible installation formula OCT sensing fiber played the support, fixed and protect, can support to carry out sensing fiber's relapse dismouting not breaking off under original wiring condition of once managing female both ends, the mode of available winding multiturn wire enlarges equivalent test current, and under the less condition of standard current source follower, ampere -turn methods such as usefulness realize the test of electric current precision.
Description
Technical field
The utility model is related to a kind of supporting construction suitable for flexible installing formula optical current mutual inductor.
Background technology
Optical current mutual inductor（OCT）With insulation system is simple, small volume, the lightweight, linearity it is good, there is no magnetic and satisfy
And the advantages of with ferromagnetic resonance problem, traditional electromagnetic transformer can be replaced, have broad application prospects.As shown in figure 1,
OCT is made up of collecting unit 1 and the two parts of sensor fibre 2, and according to the mounting means of sensing fiber ring, OCT can be divided into fixed peace
Two kinds of dress formula and flexible installing formula.The sensor fibre for wherein fixedly mounting formula OCT is sealed in structural member after packaging, is possessed not
Can deformation support frame and contour structures, need to disconnect in installation site during in-site installation and primary current loop and add OCT, only
The routine application scenario such as newly-built GIS transformer stations, AIS transformer stations is can be suitably used for, for some specific application scenarios or demand,
Such as Transfomer Substation Reconstruction, to add measurement point, installing space temporarily narrow and small, it is impossible to meet demand well.
The support frame that the sensor fibre of flexible installing formula OCT is not fixed, majority makes optical cable form, can be flexibly curved
Song, can according to demand be coiled in the once pipe bus outside of arbitrary shape, and its mounting means flexible and convenient can support that scene twines
Around, take up room little, and can be installed or removed in the case where primary connection has been completed, without the need for entering to primary connection
Any change of row, meets well the application demand of Transfomer Substation Reconstruction and power plant etc..But flexibility OCT optical cables are exposed to outer,
The reasons such as Yi Yin shocks cause to damage, while after optical cable is wrapped in pipe mother above, if not providing it certain support and fixation, its
Position and form may change, and affect transformer characteristic, and certain applications field settings are severe（Such as generator in power plant
Position may the stronger oscillation phenomenon of long-term existence）, reliably fix and protect with greater need for considering to provide flexible OCT.
After flexible installing formula OCT field-winding its current precision may with there is certain difference when dispatching from the factory, it is therefore desirable to
Current precision test is re-started, may otherwise cause OCT to there is certain current error.Simultaneously operating OCT need to be carried out
Regular inspection, i.e., per needing to re-start accuracy test at regular intervals, to check, whether its precision meets operations specification and dress is protected in control
The demand put etc..When accuracy test is carried out to OCT, need to deviate from the conductor of its installation interval from primary system, and handle
The output for rising flow device is connected to the conductor two ends, can cause the increase of work on the spot amount and the prolongation of construction period.General feelings
Under condition, the accuracy test electric current of OCT should more than 10% rated current, and the OCT rated current change in different application occasion compared with
Greatly, as the rated current of part OCT in power plant may be up to tens thousand of amperes, test electric current needs kilo-ampere, what user provided for oneself
Rise flow device to be likely difficult to meet demand, and therefore and Precision Experiment cannot be carried out.
Utility model content
For the problems referred to above, the utility model provides a kind of support suitable for flexible installing formula optical current mutual inductor and ties
Structure, plays a part of to support, fix and protect to flexible installing formula OCT sensor fibre, can support do not turning off once pipe mother two
Under the conditions of original wiring at end, the repeated disassembled and assembled of sensor fibre is carried out；Further, can be expanded with the mode of winding multiturn wire
Equivalent test electric current, normalized current source output it is less under the conditions of, with etc. ampere-turn method realize current precision test.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the utility model is achieved through the following technical solutions：
A kind of supporting construction suitable for flexible installing formula optical current mutual inductor, it is characterised in that including can mutually block
The main casing and cover plate of conjunction, the main casing is provided with the sensor fibre for placing flexible installing formula optical current mutual inductor
Toroidal cavity, the main casing is in two valve structures, wherein a lobe is provided with buckle or trip bolt in side, is arranged on another lobe
There is the optical fiber seal terminal communicated with toroidal cavity, the cover plate engages the outside for being wrapped in sensor fibre jointly with main casing.
It is preferred that, two lobes of the main casing are symmetrical semi-annular shape, and cavity cross section takes the shape of the letter U.
It is preferred that, cover plate includes two full symmetric semi-circular shape structures, and the indentation, there of main casing is fastened on respectively；Or
Person, cover plate structure and is fastened on the indentation, there of main casing in a ring.
It is preferred that, the main casing outside is evenly arranged with several spiral grooves.
The beneficial effects of the utility model are：
The sensor fibre of the firstth, flexibility OCT can be placed in the toroidal cavity of main casing, it is to avoid directly exposed, cover plate
With main casing on the premise of keeping flexibility OCT that convenience and flexibility are installed, can provide for the sensor fibre of flexibility OCT and prop up
It is support, fixed and protect, can effective protection sensor fibre make that it is easily damaged, be not deformed or conjugate, be conducive to keeping OCT's
Long-time stability, improve its shock resistance, and the structure simple installation flexibly, connects without the need for disconnecting once pipe mother the original of both sides
Line, space hold is little, can support repeated disassembled and assembled.
Secondth, after using the structure, OCT can solve a difficult problem for live current precision test, live accuracy test or fixed
During inspection, without the need for using heavy current lifting device, being capable of achieving using general relay-protection tester, relay-protection tester can be defeated
Go out the electric current of 10A or so, after multiturn wire, the effect superposition that each circle electric current is produced, equivalent current value is equal to conductor turns
Number and the product of actual current on wire, so as to effectively raise test electric current, can carry out rated current for thousands of or even number
The accuracy test of the OCT of Wan An training.
3rd, spiral grooves are uniformly distributed on a main housing, can be prevented effectively from uneven without wire winding during spiral grooves
The additive error for causing.The method of testing is easy, accurate, only ampere wires need to be wound during whole accuracy test, during operation
Wire is removed, and wire along spiral grooves pass around when without the need for housing be disassembled from pipe mother, without female to once pipe
Etc. making any change, be particularly suited for the regular inspection to running transformer, reduce live accuracy test work difficulty and when
Between, can effectively shorten the construction period, reduce quantities.
Description of the drawings
Fig. 1 is the structural representation of the utility model flexible installing formula optical current mutual inductor；
Fig. 2 is a kind of front view of the supporting construction suitable for flexible installing formula optical current mutual inductor of the utility model；
Fig. 3 is a kind of left view of the supporting construction suitable for flexible installing formula optical current mutual inductor of the utility model；
Fig. 4 is a kind of rearview of the supporting construction suitable for flexible installing formula optical current mutual inductor of the utility model；
Fig. 5 is encapsulating housing external recessing schematic diagram；
Fig. 6 is the schematic diagram for waiting ampere-turn method to measure current precision；
The mark implication of accompanying drawing is as follows：
1：Collecting unit；2：Sensor fibre；3：Main casing；4：Cavity；5：Cover plate；6：Optical fiber seal terminal；7：Buckle or
Trip bolt；8：Line conductor；9：Spiral grooves；10：Through-flow wire；11：Relay-protection tester.
Specific embodiment
Below in conjunction with the accompanying drawings technical solutions of the utility model are described in further detail with specific embodiment, so that
Those skilled in the art can be better understood from the utility model and can be practiced, but illustrated embodiment is not as to this reality
With new restriction.
As shown in figure 1, flexibility OCT is made up of collecting unit 1 and the two parts of sensor fibre 2, wherein sensor fibre makes light
Cable form.A kind of supporting construction suitable for flexible installing formula optical current mutual inductor, as in Figure 2-4, including can mutually block
The main casing 3 and cover plate 5 of conjunction, the main casing 3 is provided with the sense light for placing flexible installing formula optical current mutual inductor
Fine toroidal cavity 4, the main casing 3 is in two valve structures, two valve structure up and down in such as Fig. 2 a, wherein lobe（Under in Fig. 2
Lobe）Side is provided with buckle or trip bolt 7, another lobe（Epivalve in Fig. 2）On be provided with the light communicated with toroidal cavity 4
Fine hermetic terminal 6, the cover plate 5 engages the outside for being wrapped in sensor fibre jointly with main casing 3.
3 points of main casing is two lobes, is symmetrical semi-annular shape, and the U-shaped profile of cavity 4, two compositions of cavity 4 one
Individual toroidal cavity, main casing 3 is tightened on a line conductor 8 by buckle or trip bolt 7, and sensor fibre 2 is positioned over
In the inner chamber 4 of housing, fiber is carried out by optical fiber seal terminal 6, covered tightly with cover plate 5.
Wherein, cover plate 5 can respectively be fastened on lacking for main casing 3 by two full symmetric semi-circular shape structure compositions
At mouthful.Or, cover plate 5 is in the loop configuration of one and is fastened on the indentation, there of main casing 3.Supporting construction is by cover plate and locking
Fiber outlet realize sealing.It should be noted that, cover plate 5 can be the loop configuration in plane or tie with cambered cambered surface
Structure, and main casing 3 sees that its two lobe, in semi-annular shape, is in fact a kind of stereochemical structure from Fig. 2 or Fig. 4.
Can be first two lobes respectively from a line conductor 8 by 3 points of main casing when optical current mutual inductor is installed（Once manage
It is female）Both sides are set to once on pipe mother, are fixed on once pipe by buckle or trip bolt 7 after the position of two lobe main casing 3 is calibrated female
On, complete the installation of main casing；Sensor fibre 2 is wound around once pipe mother, and the sensor fibre 2 being completely wound is placed into
In the inner chamber 4 of main casing, the fiber of sensor fibre 2 is drawn by optical fiber seal terminal 6, and cover plate 5 is covered tightly, and completes sensor fibre
2 field-winding, support and fixed；Sensor fibre 2 is connected with collecting unit 1, the field-mounted process of transformer is completed.
As shown in figure 5, the outside of main casing 3 is evenly arranged with several spiral grooves 9, about 20～200 circles, spiral grooves 9
Be evenly distributed on whole housing, after two lobe main casing position alignments, its spiral grooves 9 be it is coherent, can be for current precision
The winding of through-flow wire 10 during test is used.
As shown in Figure 6：It is when the current precision for carrying out OCT is tested, the through-flow wire 10 of test is pre- on housing
The winding multiturn of spiral grooves 9 for staying, the winding number of turn is determined that the two ends of through-flow wire 10 are drawn respectively simultaneously by the quantity of reserved groove
The output of relay-protection tester 11 is connected to, test electric current is generated by relay-protection tester 11, by comparing relay protection
The output of tester calculates actual error with the output of tested OCT.Assume that groove is 100 circles on main casing, relay protection is surveyed
Examination instrument 11 output current is 10A, then it is 1000A to be equivalent to test electric current, current precision under normal circumstances can be met completely and is surveyed
The demand of examination.
The beneficial effects of the utility model are：
The sensor fibre of the firstth, flexibility OCT can be placed in the toroidal cavity of main casing, it is to avoid directly exposed, cover plate
With main casing on the premise of keeping flexibility OCT that convenience and flexibility are installed, can provide for the sensor fibre of flexibility OCT and prop up
It is support, fixed and protect, can effective protection sensor fibre make that it is easily damaged, be not deformed or conjugate, be conducive to keeping OCT's
Long-time stability, improve its shock resistance, and the structure simple installation flexibly, connects without the need for disconnecting once pipe mother the original of both sides
Line, space hold is little, can support repeated disassembled and assembled.
Secondth, after using the structure, OCT can solve a difficult problem for live current precision test, live accuracy test or fixed
During inspection, without the need for using heavy current lifting device, being capable of achieving using general relay-protection tester, relay-protection tester can be defeated
Go out the electric current of 10A or so, after multiturn wire, the effect superposition that each circle electric current is produced, equivalent current value is equal to conductor turns
Number and the product of actual current on wire, so as to effectively raise test electric current, can carry out rated current for thousands of or even number
The accuracy test of the OCT of Wan An training.
3rd, spiral grooves are uniformly distributed on a main housing, can be prevented effectively from uneven without wire winding during spiral grooves
The additive error for causing.The method of testing is easy, accurate, only ampere wires need to be wound during whole accuracy test, during operation
Wire is removed, and wire along spiral grooves pass around when without the need for housing be disassembled from pipe mother, without female to once pipe
Etc. making any change, be particularly suited for the regular inspection to running transformer, reduce live accuracy test work difficulty and when
Between, can effectively shorten the construction period, reduce quantities.
Preferred embodiment of the present utility model is these are only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or directly or indirectly fortune
Used in other related technical fields, it is included in the same manner in scope of patent protection of the present utility model.
Claims (6)
1. a kind of supporting construction suitable for flexible installing formula optical current mutual inductor, it is characterised in that including can be mutually clamped
Main casing（3）And cover plate（5）, the main casing（3）It is provided with the biography for placing flexible installing formula optical current mutual inductor
Photosensitive fine toroidal cavity（4）, the main casing（3）In two valve structures, wherein a lobe is provided with buckle or fastening spiral shell in side
Nail（7）, it is provided with another lobe and toroidal cavity（4）The optical fiber seal terminal for communicating（6）, the cover plate（5）With main casing（3）
Engaging is wrapped in the outside of sensor fibre jointly.
2. a kind of supporting construction suitable for flexible installing formula optical current mutual inductor according to claim 1, its feature
It is, the main casing（3）Two lobes be symmetrical semi-annular shape, and cavity（4）U-shaped profile.
3. a kind of supporting construction suitable for flexible installing formula optical current mutual inductor according to claim 2, its feature
It is, cover plate（5）Including two full symmetric semi-circular shape structures, main casing is fastened on respectively（3）Indentation, there.
4. a kind of supporting construction suitable for flexible installing formula optical current mutual inductor according to claim 2, its feature
It is, cover plate（5）Structure and it is fastened on main casing in a ring（3）Indentation, there.
5. a kind of supporting construction suitable for flexible installing formula optical current mutual inductor according to claim 1, its feature
It is, the main casing（3）Outside is evenly arranged with several spiral grooves（9）.
6. a kind of supporting construction suitable for flexible installing formula optical current mutual inductor according to claim 5, its feature
It is, spiral grooves（9）Quantity be 20～200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079960.2U CN206096422U (en) | 2016-09-26 | 2016-09-26 | Bearing structure suitable for flexible installation formula optics current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079960.2U CN206096422U (en) | 2016-09-26 | 2016-09-26 | Bearing structure suitable for flexible installation formula optics current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096422U true CN206096422U (en) | 2017-04-12 |
Family
ID=58480477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079960.2U Active CN206096422U (en) | 2016-09-26 | 2016-09-26 | Bearing structure suitable for flexible installation formula optics current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206096422U (en) |
-
2016
- 2016-09-26 CN CN201621079960.2U patent/CN206096422U/en active Active
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