CN108918002A - A kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension - Google Patents
A kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension Download PDFInfo
- Publication number
- CN108918002A CN108918002A CN201810498245.XA CN201810498245A CN108918002A CN 108918002 A CN108918002 A CN 108918002A CN 201810498245 A CN201810498245 A CN 201810498245A CN 108918002 A CN108918002 A CN 108918002A
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- China
- Prior art keywords
- winding
- iron core
- pressing force
- cartridge type
- coiling
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
Abstract
The invention discloses the calculation methods of a kind of pressing force of transformer cartridge type winding and drawing tension, and specific step is as follows：Iron core is rolled up using the semi-circular section of three identical rectangulars, it is combined into three phase transformer volume iron core, and what is wrapped up outside each transformer volume iron core is cartridge type winding, keeps tri-phase iron core magnetic circuit full symmetric, magnetic resistance greatly reduces, and excitation current, no-load loss significantly reduce；The pressure on the bearing area of transformer volume iron core is acted on, by cartridge type winding to determine the pressing force of each winding.Using the technical program, it is to obtain high-voltage winding pressing force, low pressure winding pressing force and high-voltage winding coiling drawing tension, low pressure winding coiling drawing tension based on based on pressure, its compression force value obtained and drawing tension value can be convenient for winding pressing force, coiling drawing tension to choose suitable force value respectively, so that cartridge type winding is reasonably fixed in transformer core, winding " displacement " is prevented.
Description
Technical field
The present invention relates to the calculation methods of a kind of pressing force of transformer cartridge type winding and drawing tension, are applied to transformer
Quality conformance technical field in the production process of cartridge type winding ensure that transformer in transport, installation, use process
Quality.
Background technique
Transformer is in transport and normal operation, inevitable that vibration, to prevent winding insulation " displacement " or making
At damage, need to compress to keep stable.In addition, since winding is compacted, axial short-circuit force is not when short circuit occurs for transformer
It causes in making winding cause excessive displacement deformation.
According to national standard, the axial short-circuit force of power transformer should be less than body weight G；The axial direction of auto-transformer is short
Road power should be less than 1.5 times of body weight G.And the pressing force of winding should be greater than dynamic axial short-circuit force, just can guarantee winding
Dynamic stability.The selection range of the pressing force of winding be it is biggish, moderately chosen in design work, pressing force should not be too
Greatly, serious waste of raw materials is avoided, pressure should stop before going too far, and based on compressing, avoid damage winding.For this purpose,
We design a kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension.
Summary of the invention
For the defect for solving prior art, the invention discloses the pressing forces and traction of a kind of transformer cartridge type winding
The calculation method of tension.
The invention discloses the calculation method of a kind of pressing force of transformer cartridge type winding and drawing tension, specific steps
It is as follows：
S1, iron core is rolled up using the semi-circular section of three identical rectangulars, is combined into three phase transformer volume iron core, and each change
What is wrapped up outside depressor volume iron core is cartridge type winding, keeps tri-phase iron core magnetic circuit full symmetric, magnetic resistance greatly reduces, excitation current, sky
Load-loss significantly reduces；
S2, acted on by cartridge type winding transformer volume iron core bearing area on pressure, to determine the pressing force of each winding,
Wherein for cartridge type winding in coiling, the pressure acted on iron core bearing area is p=180N/cm2, cartridge type winding coiling
After, combine winding with iron core by chock voussoir, the pressing force after combination assembly acts on iron core bearing area
Pressure is p >=240N/cm2；
The pressing force that cartridge type winding generates transformer volume iron core when S3, coiling is divided into high-voltage winding pressing force, low pressure winding pressure
Clamp force：
1）High-voltage winding pressing force is to pass through calculating formula（1）It obtains, formula（1）In, the cylinder real-time half when r is high-voltage winding coiling
Diameter, unit are that the number of turns that N is one layer of high-voltage winding, d is high-voltage winding sub-thread diameter, and unit is p：Pressure, unit N/
cm2；
2）Low pressure winding pressing force is to pass through calculating formula（2）It obtains,（2）The real-time radius of cylinder when middle r is low pressure winding coiling,
Unit is that the number of turns that N is one layer of low pressure winding, b is low pressure winding sub-thread width, and unit is that p is pressure, unit N/cm2；
The coiling drawing tension generated in S4, cartridge type winding process is divided into high-voltage winding coiling drawing tension, low pressure winding
Coiling drawing tension：
1）High-voltage winding coiling drawing tension is to pass through calculating formula（3）It obtains, formula（3）In, cylinder when r is high-voltage winding coiling
Real-time radius, unit are that d is high-voltage winding sub-thread diameter, and unit is that p is pressure, unit N/cm2；
2）Low pressure winding coiling drawing tension is to pass through calculating formula（4）It obtains, formula（4）In, cylinder when r is low pressure winding coiling
Real-time radius, unit are that b is low pressure winding sub-thread width, and unit is that p is pressure, unit N/cm2。
Preferably, the three phase transformer volume iron core made in the S1 be specifically by three identical iron core frames splicings and
At, and the face view of single iron core frame is rectangle, the truncation surface of single iron core frame is semi-circular shape, so that being by three identical squares
Iron core is rolled up in the semi-circular section of shape, is combined into three phase transformer volume iron core.
Beneficial effect is：The present invention is acted on the pressure on the bearing area of transformer volume iron core by cartridge type winding, is come true
The drawing tension when pressing force and coiling of fixed each winding is all based on based on pressure to obtain high-voltage winding and compress
Power, low pressure winding pressing force and high-voltage winding coiling drawing tension, low pressure winding coiling drawing tension, the pressing force obtained
Value can be convenient for winding pressing force, coiling drawing tension to choose suitable force value respectively with drawing tension value, so that cartridge type winding
It is reasonably fixed in transformer core, prevents winding " displacement ".
Detailed description of the invention
Fig. 1 is a kind of combination of the three phase transformer iron core of the polarity detection method of transformer cartridge type winding of the present invention
The top view of structure；
Fig. 2 is a kind of composite structure of the three phase transformer iron core of the polarity detection method of transformer cartridge type winding of the present invention
Main view；
Fig. 3 is a kind of composite structure of the three phase transformer iron core of the polarity detection method of transformer cartridge type winding of the present invention
Side view.
Specific embodiment
The invention discloses the calculation method of a kind of pressing force of transformer cartridge type winding and drawing tension, specific steps
It is as follows：
S1, it uses the semi-circular section of three identical rectangulars to roll up iron core 1 as shown in Figure 1, 2, 3, is combined into three phase transformer
Iron core is rolled up, and what is wrapped up outside each transformer volume iron core is cartridge type winding 2, keeps tri-phase iron core magnetic circuit full symmetric, magnetic resistance is significantly
It reducing, excitation current, no-load loss significantly reduce, so that three phase transformer volume iron core is in use, running noises
The more compact high-efficiency and energy-saving type transformer of smaller, structure, can promote and apply in distribution network, improve power distribution network economy fortune
Row is horizontal；
The three phase transformer volume iron core made in the S1 is specifically spliced by three identical iron core frames, and single iron
The face view of core frame is rectangle, and the truncation surface of single iron core frame is semi-circular shape, so that being cut by the semicircle of three identical rectangulars
Roll iron core is combined into three phase transformer volume iron core；
S2, acted on by cartridge type winding transformer volume iron core bearing area on pressure, to determine the pressing force of each winding,
Wherein for cartridge type winding in coiling, the pressure acted on iron core bearing area is p=180N/cm2, cartridge type winding coiling
After, combine winding with iron core by chock voussoir, the pressing force after combination assembly acts on iron core bearing area
Pressure is p >=240N/cm2；
The pressing force that cartridge type winding generates transformer volume iron core when S3, coiling is divided into high-voltage winding pressing force, low pressure winding pressure
Clamp force：
1）High-voltage winding pressing force is to pass through calculating formula（1）It obtains, formula（1）In, the cylinder real-time half when r is high-voltage winding coiling
Diameter, unit are that the number of turns that N is one layer of high-voltage winding, d is high-voltage winding sub-thread diameter, and unit is p：Pressure, unit N/
cm2；
2）Low pressure winding pressing force is to pass through calculating formula（2）It obtains,（2）The real-time radius of cylinder when middle r is low pressure winding coiling,
Unit is that the number of turns that N is one layer of low pressure winding, b is low pressure winding sub-thread width, and unit is that p is pressure, unit N/cm2；
The coiling drawing tension generated in S4, cartridge type winding process is divided into high-voltage winding coiling drawing tension, low pressure winding
Coiling drawing tension：
1）High-voltage winding coiling drawing tension is to pass through calculating formula（3）It obtains, formula（3）In, cylinder when r is high-voltage winding coiling
Real-time radius, unit are that d is high-voltage winding sub-thread diameter, and unit is that p is pressure, unit N/cm2；
2）Low pressure winding coiling drawing tension is to pass through calculating formula（4）It obtains, formula（4）In, cylinder when r is low pressure winding coiling
Real-time radius, unit are that b is low pressure winding sub-thread width, and unit is that p is pressure, unit N/cm2。
Finally it should be noted that：Above embodiments are only to illustrate the present invention and not limit technology described in the invention
Scheme；Therefore, although this specification is referring to above-mentioned each embodiment, the present invention has been described in detail, this
Field it is to be appreciated by one skilled in the art that still can modify to the present invention or equivalent replacement；And all do not depart from this
The technical solution and its improvement of the spirit and scope of invention, should all cover within the scope of the claims of the present invention.
Claims (2)
1. a kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension, it is characterised in that：Its specific steps is such as
Under：
S1, iron core is rolled up using the semi-circular section of three identical rectangulars, is combined into three phase transformer volume iron core, and each change
What is wrapped up outside depressor volume iron core is cartridge type winding, keeps tri-phase iron core magnetic circuit full symmetric, magnetic resistance greatly reduces, excitation current, sky
Load-loss significantly reduces；
S2, acted on by cartridge type winding transformer volume iron core bearing area on pressure, to determine the pressing force of each winding,
Wherein for cartridge type winding in coiling, the pressure acted on iron core bearing area is p=180N/cm2, cartridge type winding coiling
After, combine winding with iron core by chock voussoir, the pressing force after combination assembly acts on iron core bearing area
Pressure is p >=240N/cm2；
The pressing force that cartridge type winding generates transformer volume iron core when S3, coiling is divided into high-voltage winding pressing force, low pressure winding pressure
Clamp force：
1）High-voltage winding pressing force is to pass through calculating formula（1）It obtains, formula（1）In, the cylinder real-time half when r is high-voltage winding coiling
Diameter, unit are that the number of turns that N is one layer of high-voltage winding, d is high-voltage winding sub-thread diameter, and unit is p：Pressure, unit N/
cm2；
2）Low pressure winding pressing force is to pass through calculating formula（2）It obtains,（2）The real-time radius of cylinder when middle r is low pressure winding coiling,
Unit is that the number of turns that N is one layer of low pressure winding, b is low pressure winding sub-thread width, and unit is that p is pressure, unit N/cm2；
The coiling drawing tension generated in S4, cartridge type winding process is divided into high-voltage winding coiling drawing tension, low pressure winding
Coiling drawing tension：
1）High-voltage winding coiling drawing tension is to pass through calculating formula（3）It obtains, formula（3）In, cylinder when r is high-voltage winding coiling
Real-time radius, unit are that d is high-voltage winding sub-thread diameter, and unit is that p is pressure, unit N/cm2；
2）Low pressure winding coiling drawing tension is to pass through calculating formula（4）It obtains, formula（4）In, cylinder when r is low pressure winding coiling
Real-time radius, unit are that b is low pressure winding sub-thread width, and unit is that p is pressure, unit N/cm2。
2. a kind of pressing force of transformer cartridge type winding according to claim 1 and the calculation method of drawing tension, special
Sign is：The three phase transformer volume iron core made in the S1 is specifically spliced by three identical iron core frames, and single
The face view of a iron core frame is rectangle, and the truncation surface of single iron core frame is semi-circular shape, so that being by the half of three identical rectangulars
Round section roll-core is combined into three phase transformer volume iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810498245.XA CN108918002A (en) | 2018-05-23 | 2018-05-23 | A kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810498245.XA CN108918002A (en) | 2018-05-23 | 2018-05-23 | A kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108918002A true CN108918002A (en) | 2018-11-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810498245.XA Pending CN108918002A (en) | 2018-05-23 | 2018-05-23 | A kind of pressing force of transformer cartridge type winding and the calculation method of drawing tension |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113392481A (en) * | 2021-06-30 | 2021-09-14 | 保定天威集团特变电气有限公司 | Axial pressing force calculation method, device and terminal of single-layer type voltage regulating coil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226798Y (en) * | 1994-11-10 | 1996-05-08 | 顾梦柯 | Ring Triphase transformer |
| CN2465291Y (en) * | 2001-01-09 | 2001-12-12 | 何方城 | Combined coiled iron core three-phase transformer |
| CN2482730Y (en) * | 2001-05-25 | 2002-03-20 | 上海临空瑞华电器有限公司 | Three phase, tri-frame and tri-column rolling iron core voltage transformer |
| CN2487084Y (en) * | 2001-07-13 | 2002-04-17 | 周根喜 | Rolling iron core of three phase transformer |
-
2018
- 2018-05-23 CN CN201810498245.XA patent/CN108918002A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226798Y (en) * | 1994-11-10 | 1996-05-08 | 顾梦柯 | Ring Triphase transformer |
| CN2465291Y (en) * | 2001-01-09 | 2001-12-12 | 何方城 | Combined coiled iron core three-phase transformer |
| CN2482730Y (en) * | 2001-05-25 | 2002-03-20 | 上海临空瑞华电器有限公司 | Three phase, tri-frame and tri-column rolling iron core voltage transformer |
| CN2487084Y (en) * | 2001-07-13 | 2002-04-17 | 周根喜 | Rolling iron core of three phase transformer |
Non-Patent Citations (1)
| Title |
|---|
| 变压器制造技术丛书编审委员会: "《变压器绕组制造工艺》", 31 May 1998 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113392481A (en) * | 2021-06-30 | 2021-09-14 | 保定天威集团特变电气有限公司 | Axial pressing force calculation method, device and terminal of single-layer type voltage regulating coil |
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Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |