CN109859881B - Air gap insulating material for iron core reactor, air gap cushion block for iron core reactor and iron core reactor - Google Patents
Air gap insulating material for iron core reactor, air gap cushion block for iron core reactor and iron core reactor Download PDFInfo
- Publication number
- CN109859881B CN109859881B CN201711240087.XA CN201711240087A CN109859881B CN 109859881 B CN109859881 B CN 109859881B CN 201711240087 A CN201711240087 A CN 201711240087A CN 109859881 B CN109859881 B CN 109859881B
- Authority
- CN
- China
- Prior art keywords
- iron core
- air gap
- core reactor
- cushion block
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 239000011810 insulating material Substances 0.000 title claims abstract description 23
- 239000003999 initiator Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000012779 reinforcing material Substances 0.000 claims abstract description 11
- 239000002562 thickening agent Substances 0.000 claims abstract description 11
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 11
- 239000006082 mold release agent Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 10
- 229920002554 vinyl polymer Polymers 0.000 claims description 10
- -1 dicarbonate peroxide Chemical class 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 239000000230 xanthan gum Substances 0.000 claims description 6
- 229920001285 xanthan gum Polymers 0.000 claims description 5
- 229940082509 xanthan gum Drugs 0.000 claims description 5
- 235000010493 xanthan gum Nutrition 0.000 claims description 5
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000012933 diacyl peroxide Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 2
- 229910001679 gibbsite Inorganic materials 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 7
- 229920002379 silicone rubber Polymers 0.000 description 7
- 239000004593 Epoxy Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- ZFTFAPZRGNKQPU-UHFFFAOYSA-N dicarbonic acid Chemical group OC(=O)OC(O)=O ZFTFAPZRGNKQPU-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- RPBWMJBZQXCSFW-UHFFFAOYSA-N 2-methylpropanoyl 2-methylpropaneperoxoate Chemical compound CC(C)C(=O)OOC(=O)C(C)C RPBWMJBZQXCSFW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- BLCKNMAZFRMCJJ-UHFFFAOYSA-N cyclohexyl cyclohexyloxycarbonyloxy carbonate Chemical compound C1CCCCC1OC(=O)OOC(=O)OC1CCCCC1 BLCKNMAZFRMCJJ-UHFFFAOYSA-N 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical group CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
Images
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
The invention relates to an air gap insulating material for an iron core reactor, an air gap cushion block for the iron core reactor and the iron core reactor. The air gap insulating material for the iron core reactor is mainly prepared from the following raw materials in parts by weight: 30-35 parts of unsaturated polyester resin, 5-6 parts of initiator, 30-35 parts of filler, 10-11 parts of thickener, 5-6 parts of internal mold release agent and 17-20 parts of reinforcing material. The air gap cushion block for the iron core reactor is made of the material, and the dry-type iron core shunt reactor is made of the air gap cushion block. The iron core reactor adopts the air gap cushion block for the iron core reactor based on the SMC material, so that the noise and the vibration at an air gap can be well reduced, and the overall noise and the vibration of a product can be greatly reduced. The noise and vibration of the product during operation are very small, and the market competitiveness of the product in the field of power grids is improved.
Description
Technical Field
The invention relates to an air gap insulating material for an iron core reactor, an air gap cushion block for the iron core reactor and the iron core reactor.
Background
In a power system, an iron core reactor is used for compensating capacitive current of a line, inhibiting voltage rise of a line at the tail end of a long-distance power transmission line and the like, can effectively improve power transmission quality of a power grid, and belongs to important primary equipment in the power grid system.
The iron core has larger combined resistance capacity, and the common combined resistance capacity is 6000Kvar and 10000 Kvar. When the iron core reactor product is actually operated, the noise and vibration are large. The iron core column of the iron core reactor is formed by laminating a plurality of silicon steel iron core single bodies and air gap cushion blocks, generally, dozens of iron core single bodies exist, and the noise of the reactor is mainly caused by the influence of the magnetic field and the eddy current change on the laminated silicon steel iron core single bodies and the air gap cushion blocks. In actual design and production, the iron core and the air gap resistance adopt glass fiber cloth cushion blocks, and the shape of the cushion blocks is mostly square or round. Actual operation results show that the air gap cushion block in the prior art has low self strength and has a plurality of problems in product operation: in the electrified operation process of the product, the iron core column continuously vibrates for a long time, so that the glass fiber cloth plate cushion block deforms, the air gap height irregularly changes, and the noise of the product becomes large. The rated designed reactance value of the reactor is mainly determined by the height of the air gap, and the change of the height of the air gap influences the rated and designed reactance value of the product and is very unfavorable for the operation of the product. In addition, the traditional air gap cushion block is made of epoxy resin and the like, the contact surfaces of the air gap cushion block and the iron core column monomer are smooth planes, the elasticity is small, and the air gap cushion block is very easily influenced by the change of a magnetic field and eddy current during working.
Disclosure of Invention
The invention aims to provide an air gap insulating material for an iron core reactor, which aims to solve the problem of overlarge noise of the iron core reactor in the prior art.
The invention also provides an air gap cushion block for the iron core reactor using the air gap insulating material and the iron core reactor.
In order to achieve the purpose, the technical scheme of the air gap insulating material for the iron core reactor is as follows:
an air gap insulating material for an iron core reactor is mainly prepared from the following raw materials in parts by weight: 30-35 parts of unsaturated polyester resin, 5-6 parts of initiator, 30-35 parts of filler, 10-11 parts of thickener, 5-6 parts of internal mold release agent and 17-20 parts of reinforcing material.
The unsaturated polyester resin is one or more of vinyl resin and acrylic epoxy resin. The vinyl resin is bisphenol A epoxy vinyl resin.
The initiator is one or more of dicarbonate peroxide and diacyl peroxide. The initiator acts to fully react the resin and the filler. The dicarbonate peroxide is dicumyl peroxydicarbonate or dicyclohexyl peroxydicarbonate. The diacyl peroxide is a diisobutyryl peroxide.
The filler is CaCO3、Al(OH)3One or more of them.
The thickener is one or more of xanthan gum and natural rubber. The internal release agent is a silicon rubber internal release agent. The reinforcing material is a glass fiber mesh. The glass fiber grids are 0.8mm DMD glass fiber grids or 1.2mm DMD glass fiber grids.
The technical scheme of the air gap cushion block for the iron core reactor is as follows:
an air gap cushion block for an iron core reactor is mainly made of the air gap insulating material for the iron core reactor.
The air gap cushion block for the iron core reactor comprises a cushion block base body and an embedded cushion block embedded in the cushion block base body, wherein the embedded cushion block is made of the air gap insulating material for the iron core reactor.
The air gap cushion block for the iron core reactor adopts a larger cushion block base body, and the small embedded cushion block is embedded in the cushion block base body, and the embedded cushion block and the cushion block base body form a cushion block whole body, so that a magnetic field passing through an air gap is uniformly distributed, and the vibration and the noise of the iron core during the operation of a product are reduced.
The cushion block base body is provided with a through hole, and the embedded cushion block is arranged in the through hole. The height of the embedded cushion block is equal to the length of the through hole. Preferably, the cushion block base body and the embedded cushion block are circular, and compared with a traditional square cushion block, the whole peripheral area of the air gap cushion block is increased, the effective area of a magnetic field flowing through an air gap is increased, the magnetic resistance is reduced, the magnetic field is more uniform when a product runs, and the running vibration and noise of the product are smaller. Preferably, the through hole on the cushion block base body is also circular, and the inner diameter of the through hole is equal to the outer diameter of the embedded cushion block.
Preferably, the number of the embedded cushion blocks is multiple. The number of the embedded cushion blocks can be set according to the capacity of the product, and the larger the capacity of the product is, the larger the number of the embedded cushion blocks is.
An embedded cushion block can be arranged at the central position of the cushion block base body, and a plurality of circles of embedded cushion blocks are annularly arranged around the central embedded cushion block.
The cushion block matrix is prepared from glass fibers and cured resin according to the mass ratio of 1: 5. When the cushion block matrix is prepared, glass fiber is firstly adopted to form glass fiber grids, then the cured resin and the glass fiber form a composite material, and the embedded cushion blocks are firmly combined together to form a cushion block whole. The cured resin is epoxy resin or phenolic resin.
The technical scheme of the iron core reactor is as follows:
an iron core reactor using the air gap cushion block.
The iron core reactor comprises an upper iron yoke, a lower iron yoke and an iron core column arranged between the upper iron yoke and the lower iron yoke, wherein the iron core column comprises iron core monomers and air gap cushion blocks which are sequentially staggered and stacked, and the air gap cushion blocks adopt the air gap cushion blocks for the iron core reactor.
The iron core reactor can greatly reduce noise and vibration. In the prior art, noise reduction is an important inspection index of iron core and anti-product design and production. Because the running noise of the iron core reactor is mainly generated by an air gap, the iron core reactor adopts the air gap cushion block for the iron core reactor based on the SMC material, the SMC composite material has good corrosion resistance, high temperature resistance and compression resistance, is not easy to deform, can well reduce the noise and vibration at the air gap, and further can greatly reduce the integral noise and vibration of the product. The noise and vibration of the product during operation are very small, and the market competitiveness of the product in the field of power grids is improved.
Drawings
Fig. 1 is a schematic structural view of an iron-core reactor in embodiment 1;
fig. 2 is a schematic structural view of an air gap block for the iron core reactor in embodiment 1;
fig. 3 is a side view of an air gap spacer for a core reactor in example 1.
Detailed Description
The following examples are provided to further illustrate the practice of the invention.
The iron core reactors in the following embodiments are all dry-type iron core shunt reactors, the air gap cushion blocks for the iron core reactors are also air gap cushion blocks for the dry-type iron core shunt reactors, and the air gap insulating materials for the iron core reactors are air gap insulating materials for the dry-type iron core shunt reactors.
Example 1
The air gap insulating material for the iron core reactor is prepared from the following raw materials in parts by weight: 30 parts of unsaturated polyester resin, 5 parts of initiator, 35 parts of filler, 10 parts of thickening agent, 5 parts of internal release agent and 17 parts of reinforcing material. Wherein the unsaturated polyester resin is bisphenol A epoxy vinyl resin; the initiator is diisopropyl peroxydicarbonate; the filler is CaCO3(ii) a The thickening agent is xanthan gum; the internal release agent is a silicon rubber internal release agent; the reinforcing material is a 0.8mm DMD glass fiber mesh.
The preparation method of the air gap insulating material for the iron core reactor comprises the following steps:
mixing CaCO3Adding xanthan gum, silicon rubber internal release agent and 0.8mm DMD glass wire grid into vinyl resin, uniformly mixing, then adding dicarbonate peroxide initiator,mixing, adding into a mold, reacting at 35 deg.C for 70min, and demolding.
As shown in fig. 2 and fig. 3, the air gap spacer for the iron core reactor of the present embodiment includes a spacer base 41 and an embedded spacer 42 embedded in the spacer base 41, and the embedded spacer 42 is made of the air gap insulating material for the iron core reactor. The plurality of embedded spacers 42 are uniformly distributed on the spacer base 41. The pad base 41 is cylindrical and each of the embedded pads 42 is also cylindrical. Specifically, the pad base 41 has a circular plate-like structure. The pad base 41 is provided with a circular through hole 43, and the axis of the circular through hole 43 extends in the thickness direction of the pad base, i.e., the axis of the circular through hole 43 is parallel to the axis of the circular pad base. The embedded cushion block 42 is arranged in the circular through hole 43, the axis of the embedded cushion block 42 is coincided with the axis of the circular through hole 43, the outer diameter of the embedded cushion block 42 is the same as the inner diameter of the circular through hole 43, and the height 42 of the embedded cushion block is also equal to the length of the circular through hole 43. That is, the upper and lower end surfaces of the embedded cushion block 42 are flush with the end surfaces of the corresponding cushion block base 41. The number of the circular through holes, namely the number of the embedded cushion blocks can be set as required, in the embodiment, the embedded cushion blocks are arranged at the centers of the cushion block matrixes, and two circles of the embedded cushion blocks are sequentially arranged around the embedded cushion blocks at the centers and the peripheries of the embedded cushion blocks. The number of the embedded cushion blocks in the circle close to the embedded cushion block in the center is 8, and the number of the embedded cushion blocks in the circle arranged on the periphery of the embedded cushion block in the circle is 13. A layer of binding tape 44 is wound on the outer peripheral surface of the cylindrical cushion block base body, and the binding tape comprises glass fibers. The cushion block matrix is prepared by mixing and curing glass fibers and curing resin according to the mass ratio of 1: 5.
The preparation method of the air gap cushion block for the iron core reactor comprises the following steps: and uniformly placing the embedded cushion blocks in a mould, placing glass fibers in gaps among the embedded cushion blocks, adding curing resin into the gaps among the embedded cushion blocks, and curing to obtain the composite material.
As shown in fig. 1, the iron core reactor of the present embodiment includes an upper iron yoke 1, a lower iron yoke, and an iron core limb 2 disposed between the upper and lower iron yokes, wherein the iron core limb includes iron core monomers 3 and air gap blocks 4 stacked in sequence in a staggered manner, and the air gap blocks 4 adopt the above-mentioned air gap blocks for the iron core reactor. Air gaps 5 are formed between two adjacent iron core single bodies 3, and an air gap cushion block 4 is arranged in each air gap.
Example 2
The air gap insulating material for the iron core reactor is prepared from the following raw materials in parts by weight: 35 parts of unsaturated polyester resin, 6 parts of initiator, 30 parts of filler, 11 parts of thickening agent, 5 parts of internal release agent and 20 parts of reinforcing material. Wherein the unsaturated polyester resin is bisphenol A epoxy vinyl resin; the initiator is dicarbonate peroxydicyclohexyl; the filler is Al (OH)3(ii) a The thickening agent is natural rubber; the internal release agent is a silicon rubber internal release agent; the reinforcing material is 1.2mm DMD glass fiber mesh.
The preparation method of the air gap insulating material for the iron core reactor comprises the following steps:
mixing Al (OH)3Adding natural rubber, silicon rubber internal mold release agent and 1.2mm DMD glass wire grids into bisphenol A epoxy vinyl resin, uniformly mixing, then adding a dicarbonate peroxide dicyclohexyl initiator, uniformly mixing, adding into a mold, reacting for 70min at 35 ℃, and demolding to obtain the product.
The structure of the air gap cushion block for the iron core reactor in the embodiment, the preparation method thereof and the iron core reactor are the same as those in embodiment 1.
Example 3
The air gap insulating material for the iron core reactor is prepared from the following raw materials in parts by weight: 33 parts of unsaturated polyester resin, 5 parts of initiator, 32 parts of filler, 10 parts of thickener, 6 parts of internal mold release agent and 18 parts of reinforcing material. Wherein the unsaturated polyester resin is bisphenol A epoxy vinyl resin; the initiator is dicarbonate peroxydicyclohexyl; the filler is CaCO3(ii) a The thickening agent is xanthan gum; the internal release agent is a silicon rubber internal release agent; the reinforcing material is a 0.8mm DMD glass fiber mesh.
The preparation method of the air gap insulating material for the iron core reactor comprises the following steps:
mixing CaCO3Xanthan gum, silicon rubber internal mold release agent and 0.8mm DMD glassAdding glass fiber meshes into bisphenol A epoxy vinyl resin, uniformly mixing, adding a dicarbonate peroxide dicyclohexyl initiator, uniformly mixing, adding into a mould, reacting at 35 ℃ for 70min, and demoulding to obtain the glass fiber mesh.
The structure of the air gap cushion block for the iron core reactor in the embodiment, the preparation method thereof and the iron core reactor are the same as those in embodiment 1.
Test examples
The iron core reactor obtained in example 1 was subjected to a noise test and a temperature rise test, and the test results are shown in table 1.
Table 1 performance test of iron core reactor prepared in example 1
| Product specification | Noise (F) | Temperature rise |
| BKSC-6000/10 | 55dB | 70K |
| BKSC-10000/10 | 57dB | 72K |
As can be seen from Table 1, the air gap cushion block of the iron core reactor, which is prepared by the invention, can enable the reactor to have the advantages of low noise, small vibration, corrosion resistance, ageing resistance and the like.
Claims (7)
1. An air gap insulating material for an iron core reactor is characterized by being prepared from the following raw materials in parts by weight: 30-35 parts of unsaturated polyester resin, 5-6 parts of initiator, 30-35 parts of filler, 10-11 parts of thickener, 5-6 parts of internal mold release agent and 17-20 parts of reinforcing material, wherein the initiator is one or two of dicarbonate peroxide and diacyl peroxide, the thickener is one or more of xanthan gum and natural rubber, and the reinforcing material is glass wire mesh.
2. The air gap insulation material for a core reactor as claimed in claim 1, wherein: the unsaturated polyester resin is one or more of vinyl resin and acrylic epoxy resin.
3. The air gap insulation material for a core reactor as claimed in claim 1, wherein: the filler is CaCO3、Al(OH)3One or more of them.
4. The utility model provides an air gap cushion for iron core reactor which characterized in that: an air gap insulating material for a core reactor, substantially as claimed in claim 1.
5. The air gap spacer for an iron core reactor of claim 4, wherein: the iron core reactor comprises a cushion block base body and an embedded cushion block embedded in the cushion block base body, wherein the embedded cushion block is made of the air gap insulating material for the iron core reactor according to claim 1.
6. The air gap spacer for an iron core reactor of claim 5, wherein: the cushion block matrix is prepared by mixing glass fiber and cured resin according to a mass ratio of 1: 5-8.
7. An iron core reactor using the air gap spacer of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240087.XA CN109859881B (en) | 2017-11-30 | 2017-11-30 | Air gap insulating material for iron core reactor, air gap cushion block for iron core reactor and iron core reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240087.XA CN109859881B (en) | 2017-11-30 | 2017-11-30 | Air gap insulating material for iron core reactor, air gap cushion block for iron core reactor and iron core reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109859881A CN109859881A (en) | 2019-06-07 |
| CN109859881B true CN109859881B (en) | 2021-02-19 |
Family
ID=66888332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711240087.XA Active CN109859881B (en) | 2017-11-30 | 2017-11-30 | Air gap insulating material for iron core reactor, air gap cushion block for iron core reactor and iron core reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109859881B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112435836A (en) * | 2020-10-12 | 2021-03-02 | 许继变压器有限公司 | Air gap partition plate of iron core reactor, manufacturing method of air gap partition plate and iron core of reactor |
| CN115579219B (en) * | 2022-11-10 | 2023-09-15 | 广东光达电气股份有限公司 | Variable inductance reactor and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6228918B1 (en) * | 1997-10-31 | 2001-05-08 | Gil Technologies | Low-temperature and low pressure unsaturated polyester resin composition |
| CN101058666A (en) * | 2007-05-29 | 2007-10-24 | 羊建军 | Unsaturated polyester sheet moulding material and preparation method thereof |
| CN101675109A (en) * | 2007-04-27 | 2010-03-17 | Abb技术有限公司 | Preparing composition for composite laminates |
| CN101831153A (en) * | 2010-04-28 | 2010-09-15 | 北京汽车玻璃钢有限公司 | Composition and flake moulding materials prepared by combination |
| CN103102635A (en) * | 2013-02-20 | 2013-05-15 | 合肥杰事杰新材料股份有限公司 | High efficiency halogen-free flame retardant unsaturated polyester molding material and preparation method thereof |
| CN103354158A (en) * | 2013-07-17 | 2013-10-16 | 北京电力设备总厂 | Open type air reactor with adjustable inductance |
| CN107118488A (en) * | 2017-04-10 | 2017-09-01 | 振石集团华美新材料有限公司 | Continuously-directional glass fiber strengthens high electrical property sheet molding compound and preparation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204029561U (en) * | 2014-08-29 | 2014-12-17 | 深圳市英大科特技术有限公司 | Explosion-proof type three-phase high-voltage SVG linked reactor |
-
2017
- 2017-11-30 CN CN201711240087.XA patent/CN109859881B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6228918B1 (en) * | 1997-10-31 | 2001-05-08 | Gil Technologies | Low-temperature and low pressure unsaturated polyester resin composition |
| CN101675109A (en) * | 2007-04-27 | 2010-03-17 | Abb技术有限公司 | Preparing composition for composite laminates |
| CN101058666A (en) * | 2007-05-29 | 2007-10-24 | 羊建军 | Unsaturated polyester sheet moulding material and preparation method thereof |
| CN101831153A (en) * | 2010-04-28 | 2010-09-15 | 北京汽车玻璃钢有限公司 | Composition and flake moulding materials prepared by combination |
| CN103102635A (en) * | 2013-02-20 | 2013-05-15 | 合肥杰事杰新材料股份有限公司 | High efficiency halogen-free flame retardant unsaturated polyester molding material and preparation method thereof |
| CN103354158A (en) * | 2013-07-17 | 2013-10-16 | 北京电力设备总厂 | Open type air reactor with adjustable inductance |
| CN107118488A (en) * | 2017-04-10 | 2017-09-01 | 振石集团华美新材料有限公司 | Continuously-directional glass fiber strengthens high electrical property sheet molding compound and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109859881A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109859881B (en) | Air gap insulating material for iron core reactor, air gap cushion block for iron core reactor and iron core reactor | |
| WO2020192732A1 (en) | Multi-strand composite material reinforcing core and manufacturing method therefor | |
| CN101906895A (en) | Composite electrical cross arm and design method of structure thereof | |
| TW201408086A (en) | Speaker damper and manufacturing method thereof | |
| CN108806968B (en) | Design and manufacturing method of electromagnetic self-piercing riveting flat coil | |
| CN113250517B (en) | Electric power tower composite structure and preparation method thereof | |
| CN206313377U (en) | A kind of power cable fixed clamping device | |
| CN102009481B (en) | Method for manufacturing carbon fiber arm support for concrete pump truck | |
| CN101982672B (en) | Traction transmission belt and preparation method thereof | |
| CN112318950A (en) | High-strength electromagnetic pulse protection structure material | |
| CN112435836A (en) | Air gap partition plate of iron core reactor, manufacturing method of air gap partition plate and iron core of reactor | |
| CN103337317A (en) | Manufacture method for insulator with combined-type core rod | |
| CN101637974B (en) | Sizing device of composite profile | |
| CN201444442U (en) | Resin casting dry type transformer with rectangular iron cores | |
| CN218525431U (en) | Winding body of high-voltage winding and high-voltage winding | |
| CN218525432U (en) | Dry-type transformer | |
| CN201142262Y (en) | Triangle disposition iron core shunt reactor | |
| CN110343367B (en) | High-toughness carbon fiber composite core for overhead conductor | |
| CN108314810A (en) | A kind of military rubber washer | |
| CN113843927A (en) | Forming die of unmanned aerial vehicle combined material spare part | |
| CN114300239A (en) | Dry-type transformer | |
| CN110549647B (en) | Dish-shaped carbon fiber composite material combined pressure spring structure and manufacturing method thereof | |
| CN206116168U (en) | Anti short circuit transformer is arranged to X type | |
| CN209785658U (en) | Composite disc insulator with new bonding structure | |
| CN101226816A (en) | Epoxy mould dry type vibration reduction denoise iron core shunt reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |