CN108039272B - Assembly method of protective oil-immersed amorphous transformer core - Google Patents
Assembly method of protective oil-immersed amorphous transformer core Download PDFInfo
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- CN108039272B CN108039272B CN201711113037.5A CN201711113037A CN108039272B CN 108039272 B CN108039272 B CN 108039272B CN 201711113037 A CN201711113037 A CN 201711113037A CN 108039272 B CN108039272 B CN 108039272B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
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Abstract
The invention discloses an assembly method of a protective oil immersion type amorphous transformer iron core, which comprises the following steps of wrapping a contact part of a coil and the amorphous iron core by cable paper before the amorphous iron core is assembled, and wrapping a core column part of the amorphous iron core by noise reduction cable paper; sleeving an iron core, after the end part of the iron core lap joint is sealed, sucking amorphous fragments on the surface by using a dust collector, coating glass cement on the amorphous fragments, and sticking and covering the upper surface and the lower surface of the iron core by using noise reduction cable paper. Compared with the prior art, the method reduces the probability of generating iron core fragments during assembly, blocks channels through which the iron core fragments flow during the operation of the transformer, and reduces the probability of generating short circuit due to the flowing of the fragments, thereby ensuring the quality of the transformer and prolonging the service life of the transformer.
Description
Technical Field
The invention belongs to the technical field of power transformer manufacturing, and relates to an assembly method of a protective oil-immersed amorphous transformer core.
Background
The iron core surface can produce scattered piece when amorphous alloy transformer operation, and the piece removes on the winding along with circulating oil, and the piece on the winding discharges when the transformer operation, makes the winding short circuit, seriously influences amorphous transformer quality problem. The invention aims to solve the technical problem of how to effectively protect an oil immersed amorphous transformer core and reduce the probability of amorphous core fragments.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention aims to provide an assembling method of a protective oil-immersed amorphous transformer iron core, so that the generation of iron core fragments during assembling is reduced, and the probability of short circuit caused by fragment flowing is reduced, thereby ensuring the quality of a transformer and prolonging the service life of the transformer.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme:
before the amorphous iron core is assembled, the contact part of a coil and the amorphous iron core is wrapped by cable paper, and the core column part of the amorphous iron core is wrapped by noise reduction cable paper; sleeving an iron core, after the end part of the iron core lap joint is sealed, sucking amorphous fragments on the surface by using a dust collector, coating glass cement on the amorphous fragments, and sticking and covering the upper surface and the lower surface of the iron core by using noise reduction cable paper.
Aiming at the single-layer amorphous iron core, the assembling method comprises the following steps:
(1) respectively hoisting the coils on an assembly table according to the phase sequence;
(2) wrapping the contact part of the coil and the amorphous iron core by cable paper;
(3) hoisting the amorphous iron core to a flat car, and sucking amorphous fragments on the iron core by using a vacuum cleaner;
(4) wrapping the amorphous core column part with noise reduction cable paper;
(5) opening the amorphous iron core, cleaning broken amorphous fragments, and sleeving the iron core on the coil;
(6) reassembling the lapped joint of the sleeved amorphous iron core, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(7) and after glass cement is coated on the upper end part and the lower end part of the iron core lap joint, the upper surface and the lower surface of the iron core are tightly wrapped by noise reduction cable paper.
Further preferably, before the iron core is sleeved on the coil, the method further comprises the steps of placing upper and lower yoke cable paper of the integral iron core on an inner frame of the coil, and fixing the cable paper along a window of the coil by using an adhesive tape; the noise reduction cable paper is used for tightly wrapping the iron core and then is placed in the inner frame of the coil in a closed mode, and the iron core is tightly wrapped again.
Aiming at the single-layer amorphous iron core, the assembling method comprises the following steps:
(1) respectively hoisting the coils on an assembly table according to the phase sequence;
(2) wrapping the contact part of the coil and the amorphous iron core by cable paper;
(3) hoisting the lower amorphous iron core to a flat car, and sucking amorphous fragments on the iron core by using a vacuum cleaner;
(4) wrapping the amorphous core column part with noise reduction cable paper;
(5) opening the amorphous iron core, cleaning broken amorphous fragments, and sleeving the iron core on the coil;
(6) reassembling the lapped joint of the sleeved amorphous iron core, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(7) coating glass cement on the upper end and the lower end of the iron core lap joint, and tightly wrapping the upper surface and the lower surface of the iron core by noise reduction cable paper;
(8) and (4) assembling the upper amorphous iron core according to the sequence of the steps (3) to (7).
Preferably, before the lower amorphous core is sleeved on the coil, the method further comprises the steps of placing upper and lower yoke cable paper of the integral core on an inner frame of the coil, and fixing the cable paper along a coil window by using an adhesive tape; the noise reduction cable paper is used for tightly wrapping the upper amorphous iron core and then is placed in the inner frame of the coil in a closed mode, and the iron core is tightly wrapped again.
Has the advantages that: compared with the prior art, the method reduces the probability of generating iron core fragments during assembly, blocks channels through which the iron core fragments flow during the operation of the transformer, generates qualitative leap on the performance change of the amorphous transformer, and reduces the probability of generating short circuit due to the flowing of the fragments, thereby ensuring the quality of the transformer and prolonging the service life of the transformer.
Drawings
FIG. 1 is a flow chart of example 1 of the present invention.
Fig. 2 is a flowchart of embodiment 2 of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary and are not intended to limit the scope of the invention, as various equivalent modifications of the invention will occur to those skilled in the art upon reading the present disclosure and fall within the scope of the appended claims.
The embodiment of the invention discloses an assembly method of a protective oil-immersed amorphous transformer iron core, which mainly adopts the steps that before an amorphous iron core is assembled, the contact part of a coil and the amorphous iron core is wrapped by cable paper, and the core column part of the amorphous iron core is wrapped by noise reduction cable paper; the iron core is sleeved, after the end part of the iron core lap joint is sealed, amorphous fragments on the surface are sucked by a dust collector and coated with glass cement, the upper surface and the lower surface of the iron core are completely stuck and covered by noise reduction cable paper, no gap is left, and channels through which the iron core fragments flow when the transformer operates are blocked. The following is a detailed description of a specific assembling method of the single-layer amorphous core and the two-layer amorphous core.
Example 1
As shown in fig. 1, an assembly method of a protective oil-immersed amorphous transformer core disclosed in the embodiment of the present invention includes the following steps:
(1) respectively hoisting qualified coils on the roller way on a bracket of an assembly table according to the phase sequence;
(2) wrapping the contact part of the coil and the amorphous iron core by cable paper;
(3) placing upper and lower yoke cable paper of the integral iron core on the inner frame of the coil, and fixing the cable paper along the window of the coil by using an adhesive tape;
(4) the amorphous iron core is sequentially hung on a hydraulic flat car according to the assembly sequence by a special magnetic crane, and amorphous fragments on the iron core are completely sucked by a vacuum cleaner;
(5) wrapping the amorphous core column with noise-reducing cable paper (iron core adhesive paper produced by Nantong Nizhi);
(6) opening the amorphous iron core by using a special iron core cutter in a split-stacking manner, cleaning broken amorphous fragments, and sleeving the iron core on the coil according to the connection group marks;
(7) reassembling the lapped joint of the sleeved amorphous iron core, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(8) coating glass cement on the upper end and the lower end of the iron core lap joint, and tightly wrapping the upper surface and the lower surface of the iron core by noise reduction cable paper;
(9) and closing the iron core cable paper, and tightly wrapping the iron core again.
After the iron core is tightly wrapped, the procedures of installing the clamping piece, pressing the block and the like are consistent with those of the prior art, and the details are not repeated here.
Example 2
As shown in fig. 2, the method for assembling the protected oil-immersed amorphous transformer core disclosed in the embodiment of the present invention includes the following steps:
(1) respectively hoisting qualified coils on the roller way on a bracket of an assembly table according to the phase sequence;
(2) wrapping the contact part of the coil and the amorphous iron core by cable paper;
(3) placing upper and lower yoke cable paper of the integral iron core on the inner frame of the coil, and fixing the cable paper along the window of the coil by using an adhesive tape;
(4) sequentially hanging the lower amorphous iron core on a hydraulic flat car according to the assembly sequence by using a special magnetic crane, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(5) wrapping the amorphous core column part with noise reduction cable paper;
(6) opening the amorphous iron core by using a special iron core cutter in a split-stacking manner, cleaning broken amorphous fragments, and sleeving the iron core on the coil according to the connection group marks;
(7) reassembling the lapped joint of the sleeved amorphous iron core, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(8) coating glass cement on the upper end and the lower end of the iron core lap joint, and tightly wrapping the upper surface and the lower surface of the iron core by noise reduction cable paper;
(9) and (5) assembling the upper amorphous iron core according to the sequence of the steps (4) to (8).
(10) And closing the iron core cable paper, and tightly wrapping the iron core again.
After the iron core is tightly wrapped, the procedures of installing upper and lower layer insulation, clamping pieces, pressing blocks and the like are consistent with those of the prior art, and are not described again here.
The invention discloses an assembling method of a protective oil immersion type amorphous transformer iron core. The probability of iron core fragments generated during assembly is reduced, channels through which the iron core fragments flow during the operation of the transformer are blocked, the quality of the transformer is ensured, and the service life of the transformer is prolonged.
Claims (2)
1. An assembly method of a protective oil immersion type amorphous transformer iron core is characterized in that before the amorphous iron core is assembled, a contact part of a coil and the amorphous iron core is wrapped by cable paper, and a core column part of the amorphous iron core is wrapped by noise reduction cable paper; sleeving an iron core, after the end part of the iron core lap joint is sealed, sucking amorphous fragments on the surface by using a dust collector, coating glass cement on the surface, and sticking and covering the upper surface and the lower surface of the iron core by using noise reduction cable paper; the method comprises the following steps:
(1) respectively hoisting the coils on an assembly table according to the phase sequence;
(2) wrapping the contact part of the coil and the amorphous iron core by cable paper; placing upper and lower yoke cable paper of the integral iron core on the inner frame of the coil, and fixing the cable paper along the window of the coil by using an adhesive tape;
(3) hoisting the amorphous iron core to a flat car, and sucking amorphous fragments on the iron core by using a vacuum cleaner;
(4) wrapping the amorphous core column part with noise reduction cable paper;
(5) opening the amorphous iron core, cleaning broken amorphous fragments, and sleeving the iron core on the coil;
(6) reassembling the lapped joint of the sleeved amorphous iron core, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(7) coating glass cement on the upper end and the lower end of the iron core lap joint, and tightly wrapping the upper surface and the lower surface of the iron core by noise reduction cable paper; and closing the cable paper placed in the inner frame of the coil, and tightly wrapping the iron core again.
2. An assembly method of a protective oil immersion type amorphous transformer iron core is characterized in that before the amorphous iron core is assembled, a contact part of a coil and the amorphous iron core is wrapped by cable paper, and a core column part of the amorphous iron core is wrapped by noise reduction cable paper; sleeving an iron core, after the end part of the iron core lap joint is sealed, sucking amorphous fragments on the surface by using a dust collector, coating glass cement on the surface, and sticking and covering the upper surface and the lower surface of the iron core by using noise reduction cable paper; the method comprises the following steps:
(1) respectively hoisting the coils on an assembly table according to the phase sequence;
(2) wrapping the contact part of the coil and the amorphous iron core by cable paper; placing upper and lower yoke cable paper of the integral iron core on the inner frame of the coil, and fixing the cable paper along the window of the coil by using an adhesive tape;
(3) hoisting the lower amorphous iron core to a flat car, and sucking amorphous fragments on the iron core by using a vacuum cleaner;
(4) wrapping the amorphous core column part with noise reduction cable paper;
(5) opening the amorphous iron core, cleaning broken amorphous fragments, and sleeving the iron core on the coil;
(6) reassembling the lapped joint of the sleeved amorphous iron core, and completely sucking amorphous fragments on the iron core by using a vacuum cleaner;
(7) coating glass cement on the upper end and the lower end of the iron core lap joint, and tightly wrapping the upper surface and the lower surface of the iron core by noise reduction cable paper; the cable paper placed in the inner frame of the coil is closed, and the iron core is tightly wrapped;
(8) and (4) assembling the upper amorphous iron core according to the sequence of the steps (3) to (7).
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| CN201711113037.5A CN108039272B (en) | 2017-11-13 | 2017-11-13 | Assembly method of protective oil-immersed amorphous transformer core |
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| CN201711113037.5A CN108039272B (en) | 2017-11-13 | 2017-11-13 | Assembly method of protective oil-immersed amorphous transformer core |
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| CN108039272B true CN108039272B (en) | 2020-06-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203774068U (en) * | 2014-03-20 | 2014-08-13 | 上海置信电气非晶有限公司 | Short-circuit resistant and damping structure used between amorphous-alloy transformer iron core and winding |
| CN104465058A (en) * | 2014-11-27 | 2015-03-25 | 宁波奥克斯高科技有限公司 | Manufacturing method of transformer body of oil immersion type amorphous alloy transformer |
| CN204904986U (en) * | 2015-08-25 | 2015-12-23 | 上海置信电气非晶有限公司 | Oil -immersed transformer's amorphous structure unshakable in one's determination |
| CN106098351A (en) * | 2016-06-06 | 2016-11-09 | 柳州市海格电气有限公司 | The SH15 type amorphous alloy oil immersion type distribution transformer manufacture method of 10kV |
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- 2017-11-13 CN CN201711113037.5A patent/CN108039272B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203774068U (en) * | 2014-03-20 | 2014-08-13 | 上海置信电气非晶有限公司 | Short-circuit resistant and damping structure used between amorphous-alloy transformer iron core and winding |
| CN104465058A (en) * | 2014-11-27 | 2015-03-25 | 宁波奥克斯高科技有限公司 | Manufacturing method of transformer body of oil immersion type amorphous alloy transformer |
| CN204904986U (en) * | 2015-08-25 | 2015-12-23 | 上海置信电气非晶有限公司 | Oil -immersed transformer's amorphous structure unshakable in one's determination |
| CN106098351A (en) * | 2016-06-06 | 2016-11-09 | 柳州市海格电气有限公司 | The SH15 type amorphous alloy oil immersion type distribution transformer manufacture method of 10kV |
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