CN204992568U - Low -voltage arc suppressing coil - Google Patents
Low -voltage arc suppressing coil Download PDFInfo
- Publication number
- CN204992568U CN204992568U CN201520532497.1U CN201520532497U CN204992568U CN 204992568 U CN204992568 U CN 204992568U CN 201520532497 U CN201520532497 U CN 201520532497U CN 204992568 U CN204992568 U CN 204992568U
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- China
- Prior art keywords
- stem
- yoke
- clamping piece
- low
- arc suppression
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Abstract
The utility model discloses a low -voltage arc suppressing coil, including the upper yoke, down indisputable yoke, stem stem, go up folder, folder and the coil of suit on the stem stem down, the upper yoke presss from both sides the fastening through last folder to be decided, lower indisputable yoke presss from both sides the fastening through folder down to be decided, the stem stem forms close structure for two and each stem stem clamp is located at least between upper yoke and the lower indisputable yoke, the stem stem is the whole column type structure of middle nos air gap, forms the air gap between stem stem both ends and corresponding upper yoke or time indisputable yoke, the utility model discloses a low -voltage arc suppressing coil, be applicable to the arc suppressing coil test bench on, demand inductive current's technical problem when solving the single -phase ground connection of arc suppressing coil test bench simulation, the test time that significantly reduces makes experimental more simple and efficiently, the assurance test platform detects arc suppressing coil controlling means's exactness.
Description
Technical field
The utility model relates to reactor technical field, particularly relates to a kind of low-voltage arc suppression coil.
Background technology
Power system transmission line is through grounding through arc, for the one of small current neutral grounding system, when single-phase there is short trouble time, the inductive current flowing through arc suppression coil and the capacitance current flow through add up to the electric current flowing through short circuit grounding point, on inductance capacitance, electric current phase 180 degree, compensates mutually.When the value of two electric currents is less than the minimum current that electric arc occurs, electric arc would not occur, and also there will not be resonance overvoltage phenomenon; Arc suppression coil, as reactor, is mainly ground compensation system, and existing nowadays system voltage is generally in 6-66kV power wiring systems.The low-voltage arc suppression coil of the existing domestic inductive current that is not also applicable to afford redress when testing stand carrying out analogue system single-phase earthing, not only length consuming time, and the correctness of Arc Suppression Coil Control device cannot be detected by guarantee test platform.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of low-voltage arc suppression coil, be applicable on arc suppression coil testing stand, the technical problem of demand inductive current during solution arc suppression coil testing stand simulation single-phase earthing, greatly reduce test duration, make test more simple and efficient, guarantee test platform detects the correctness of Arc Suppression Coil Control device.
Low-voltage arc suppression coil of the present utility model, the coil comprising upper yoke, lower yoke, stem stem, upper clamping piece, lower clamping piece and be set on stem stem, upper yoke is fixedly clamped by upper clamping piece, lower yoke is fixedly clamped by lower clamping piece, and stem stem is at least two and each stem stem is located between upper yoke and lower yoke and forms closing structure; Described stem stem is the whole pole structure of middle air-gap-free, forms air gap between stem stem two ends and corresponding upper yoke or lower yoke.
Further, described upper yoke and lower yoke are flat yoke formula structure.
Further, described upper clamping piece and lower clamping piece comprise two channel-section steels that notch is arranged dorsad respectively; Upper yoke and lower yoke are fixedly clamped between corresponding two channel-section steels by corresponding other screw rod; By drawing tie-rod to fix between upper clamping piece and lower clamping piece.
Further, described upper yoke is concordant with the upper and lower surface of lower clamping piece with corresponding upper clamping piece with the upper and lower surface of lower yoke.
Further, described coil is impregnated coil.
Further, described low-voltage arc suppression coil also comprises winning in succession of two the channel-section steel end faces being fixed on upper clamping piece; Describedly to win in succession as the end of multiple and corresponding stem stem is arranged.
Further, described low-voltage arc suppression coil also comprises the translot steel of two the channel-section steel bottom surfaces being fixed on lower clamping piece.
The beneficial effects of the utility model are: low-voltage arc suppression coil of the present utility model, be applicable on arc suppression coil testing stand, the technical problem of demand inductive current during solution arc suppression coil testing stand simulation single-phase earthing, greatly reduce test duration, make test more simple and efficient, guarantee test platform detects the correctness of Arc Suppression Coil Control device.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is the left view of Fig. 1, Fig. 3 is the vertical view of Fig. 1, as shown in the figure: the low-voltage arc suppression coil of the present embodiment, the coil comprising upper yoke 1, lower yoke 2, stem stem 3, upper clamping piece 4, lower clamping piece 5 and be set on stem stem 3, upper yoke 1 is fixedly clamped by upper clamping piece 4, lower yoke 2 is fixedly clamped by lower clamping piece 5, and stem stem 3 is at least two and each stem stem 3 is located between upper yoke 1 and lower yoke 2 and forms closing structure, described stem stem 3 is the whole pole structure of middle air-gap-free, forms air gap between stem stem 3 two ends and corresponding upper yoke 1 or lower yoke 2, the capacity of low-voltage arc suppression coil is 7kVA, system voltage is 380V, terminal voltage is 220V, Current adjustment scope 34-10A, gear number is 9 grades, level spill current is 3A, reactance scope 6.5-21.9 Ω, coil is made up of A coil and x-ray circle, stem stem 3 is set to two, single-column 2 air gaps, each air gap 1.5mm, total air gap 6mm, stem stem is arranged between Double layer iron yoke, the cushion block that stem stem both ends of the surface and being provided with between corresponding upper yoke and lower yoke are formed by stacking by the F pole epoxy resin bonded fiber that 3 pieces of 0.5mm are thick and then make stem stem and form the air gap of 1.5mm between upper yoke and lower yoke respectively, stem stem 3 adopts whole pillar, air gap is not established in centre, to adopt discus formula to be superposed to stem stem 3 different from conventional arc suppression coil stem stem 3, decrease flap-type, add the efficiency of sheet clipping machine, the time of artificial lamination is greatly reduced, save cost.
In the present embodiment, described upper yoke 1 and lower yoke 2 are flat yoke formula structure, different from conventional iron yoke strap two pillars, and flap-type is reduced to 1 by 3 of routine, and not only structure is easier, and production efficiency also improves greatly.
In the present embodiment, described upper clamping piece 4 and lower clamping piece 5 comprise two channel-section steels that notch is arranged dorsad respectively; Upper yoke 1 and lower yoke 2 are fixedly clamped between corresponding two channel-section steels by corresponding other screw rod 6; By drawing screw rod 7 to be strained and fixed between upper clamping piece 4 and lower clamping piece 5; Channel-section steel is by web and be fixed on wide two wing plates to both sides of web and form, other screw rod 6 runs through the web of two channel-section steels and corresponding upper yoke 1 or lower yoke 2, then be fixedly clamped at other screw rod 6 two ends mounting nuts, structural stability is good, is convenient to manufacture and assembling.
In the present embodiment, described upper yoke 1 is concordant with the upper and lower surface of lower clamping piece 5 with corresponding upper clamping piece 4 with the upper and lower surface of lower yoke 2, compared with not concordant with routine, structure is more optimized.
In the present embodiment, described coil is impregnated coil, different from the resin-cast of routine, and impregnated coil decreases the molding time of coil, good heat dissipation effect.
In the present embodiment, what described low-voltage arc suppression coil also comprised two the channel-section steel end faces being fixed on upper clamping piece 4 wins 8 in succession; Described winning in succession 8 is arranged for the multiple and end of corresponding stem stem 3, can improve upper clamping piece 4 structural stability.
In the present embodiment, described low-voltage arc suppression coil also comprises the translot steel 9 of two the channel-section steel bottom surfaces being fixed on lower clamping piece 5, lower clamping piece 5 structural stability can be improved, simultaneously translot steel 9 can be used as feet low-voltage arc suppression coil is put stably by translot steel 9, be fixed together by connecting bolt and nut between translot steel 9 and lower clamping piece 5, the notch of translot steel 9 down, the web of translot steel 9 is also provided with Height Adjustment screw, the bottom-up web through translot steel 9 of described Height Adjustment screw also withstands on the bottom surface of lower clamping piece 5, threaded engagement is passed through between the web of Height Adjustment screw and translot steel 9, therefore can adjust the gap between translot steel 9 with lower clamping piece 5 by adjustment connecting bolt and Height Adjustment screw and make to keep between translot steel 9 with lower clamping piece 5 being fixedly connected with, realize the continuous setup of the height of low-voltage arc suppression coil, practical.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. a low-voltage arc suppression coil, it is characterized in that: the coil comprising upper yoke, lower yoke, stem stem, upper clamping piece, lower clamping piece and be set on stem stem, upper yoke is fixedly clamped by upper clamping piece, lower yoke is fixedly clamped by lower clamping piece, and stem stem is at least two and each stem stem is located between upper yoke and lower yoke and forms closing structure; Described stem stem is the whole pole structure of middle air-gap-free, forms air gap between stem stem two ends and corresponding upper yoke or lower yoke.
2. low-voltage arc suppression coil according to claim 1, is characterized in that: described upper yoke and lower yoke are flat yoke formula structure.
3. low-voltage arc suppression coil according to claim 1, is characterized in that: described upper clamping piece and lower clamping piece comprise two channel-section steels that notch is arranged dorsad respectively; Upper yoke and lower yoke are fixedly clamped between corresponding two channel-section steels by corresponding other screw rod; By drawing tie-rod to fix between upper clamping piece and lower clamping piece.
4. low-voltage arc suppression coil according to claim 1, is characterized in that: described upper yoke is concordant with the upper and lower surface of lower clamping piece with corresponding upper clamping piece with the upper and lower surface of lower yoke.
5. low-voltage arc suppression coil according to claim 1, is characterized in that: described coil is impregnated coil.
6. low-voltage arc suppression coil according to claim 3, is characterized in that: described low-voltage arc suppression coil also comprises winning in succession of two the channel-section steel end faces being fixed on upper clamping piece; Describedly to win in succession as the end of multiple and corresponding stem stem is arranged.
7. low-voltage arc suppression coil according to claim 3, is characterized in that: described low-voltage arc suppression coil also comprises the translot steel of two the channel-section steel bottom surfaces being fixed on lower clamping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520532497.1U CN204992568U (en) | 2015-07-21 | 2015-07-21 | Low -voltage arc suppressing coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520532497.1U CN204992568U (en) | 2015-07-21 | 2015-07-21 | Low -voltage arc suppressing coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992568U true CN204992568U (en) | 2016-01-20 |
Family
ID=55126896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520532497.1U Expired - Fee Related CN204992568U (en) | 2015-07-21 | 2015-07-21 | Low -voltage arc suppressing coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782992A (en) * | 2017-02-28 | 2017-05-31 | 中车株洲电机有限公司 | A kind of locomotive transformer and its air gap iron-core |
-
2015
- 2015-07-21 CN CN201520532497.1U patent/CN204992568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782992A (en) * | 2017-02-28 | 2017-05-31 | 中车株洲电机有限公司 | A kind of locomotive transformer and its air gap iron-core |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190721 |