CN106341001A - Installation structure of mutual inductor of oil cooling AC generator - Google Patents
Installation structure of mutual inductor of oil cooling AC generator Download PDFInfo
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- CN106341001A CN106341001A CN201610964458.8A CN201610964458A CN106341001A CN 106341001 A CN106341001 A CN 106341001A CN 201610964458 A CN201610964458 A CN 201610964458A CN 106341001 A CN106341001 A CN 106341001A
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- copolar
- lug plate
- transformer
- stem
- hole
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- Synchronous Machinery (AREA)
Abstract
The invention relates to improvement of an installation structure of a mutual inductor of an oil cooling AC generator, and belongs to technology of structural design of the oil cooling AC generator. The installation structure is characterized in that the installation structure of a mutual inductor coil (3) comprises a copular lug (1), a copular lug insulating sheet (2), three main stator winding lugs (4), three mutual inductor stems (5) and three fixing screw assemblies (6). The improved installation structure of the invention improves the heat radiation condition of the end portion of a main motor greatly, and also improves the working reliability of the motor.
Description
Technical field
The invention belongs to oil cooling alternator construction designing technique, it is related to, to oil cooling alternating current generator transformer, knot is installed
The improvement of structure.
Background technology
Transformer is the part of three-level formula oil cooling alternating current generator, the function of large-scale three-level formula oil cooling alternating current generator
Part includes main generator, main exciter, pilot exciter；Three motor coaxle rotations, are integrated in a housing.Transformer component
Be the three-phase output current of main generator is reduced through a rated transformation ratio after, be supplied to engine controller, realize alternating current generator
Current detecting and defencive function critical component.
Transformer is arranged on the inside of three-level formula oil cooling alternating current generator.Current structure is: by the three-phase of main generator
Common port lead-out wire passes through respectively from 3 mutual inductor coils, and 3 mutual inductor coil colligations are in main generator threephase stator winding
End.Its shortcoming is: is unfavorable for radiating in mair motor end.Mutual inductor coil colligation, in stator winding end, affects cooling oil
Sufficiently contact winding overhang, the radiating of impact mair motor.Meanwhile, end space is limited, installs fixing inconvenience, and colligation is insecure
The reliability of impact motor work.
Content of the invention
The purpose of the present invention is: proposes a kind of mounting structure of transformer in improved oil cooling alternating current generator, to change
Philanthropist's motor end radiating condition, improves the reliability of motor work simultaneously.
The technical scheme is that a kind of mounting structure of oil cooling alternating current generator transformer, including 3 transformer lines
Circle 3 and generator public output 8, generator public output 8 is fixed on the public output fairlead on generator housing 7
On, the output end of mutual inductor coil 3 is connected with the electric connector socket being fixed on generator housing 7；It is characterized in that: mutual inductance
The mounting structure of device coil 3 includes copolar lug plate 1,2,3 main stator winding connection pieces of copolar lug plate insulating trip 4,3 mutually
Sensor stem stem 5 and 3 fixing screws assemblies 6；
A, transformer stem stem 5 are the nut with cylindrical outer shape of copper material manufacture, and mutual inductor coil 3 is enclosed within transformer
The outside of stem stem 5, the axial length of mutual inductor coil 3 is not more than the axial length of transformer stem stem 5, in transformer stem stem 5
There is a male half coupling lower end；
B, main stator winding connection piece 4 be shaped as angle shape, its material is identical with the material of transformer stem stem 5,
One welding hole, the male half coupling end insertion welding hole of transformer stem stem 5 lower end are had on the horizontal arm of main stator winding connection piece 4
Interior and be welded as entirety, wiring hole is had on the upright arm of main stator winding connection piece 4,3 main stator windings of generator
Common port and above-mentioned wiring hole are welded as entirety；
The fanning strip that c, copolar lug plate 1 manufacture for copper material, external diameter is consistent with the internal diameter of generator housing, connects in copolar
3 copolar lug plate installing holes are along the circumferential direction had on line piece 1, the upper end of 3 transformer stem stems 5 respectively with copolar lug plate
1 is welded as entirety, and the screwed hole of 3 transformer stem stems 5 is aligned with 3 copolar lug plate installing holes, respectively in copolar lug plate 1
Left end have a public output pass through hole；
D, copolar lug plate insulating trip 2 shape and size identical with copolar lug plate 1, copolar lug plate insulating trip 2 covers
Cover on the upper surface of copolar lug plate 1；
E, 3 transformer installation step holes are had on generator housing 7, the axis in 3 transformer installation step holes with
The axis co-planar of copolar lug plate installing hole, the position in 3 transformer installation step holes respectively with 3 copolar lug plate installing holes
Position align, on transformer installation step hole the internal diameter of sector hole be more than lower sector hole internal diameter, copolar lug plate insulating trip 2 left end
Public output pass through the public output of hole and copolar lug plate 1 left end to pass through borehole jack outside generator public output 8
Face, public output passes through hole and generator public output 8 to be welded as entirety；
F, described fixing screws assembly 6 are by screw 6a, the 1st insulating washer 6b, the 2nd insulating washer 6c, the 1st sealing ring
6d, the 2nd sealing ring 6e, insulation sleeve 6f composition；2nd sealing ring 6e is located at the bottom of sector hole on transformer installation step hole, insulation
Packing ring 6c is located above the 2nd sealing ring 6e, and the 1st sealing ring 6d is located above insulating washer 6c, and the 1st insulating washer 6b is located at
The outside of the 2nd insulating washer 6c, the transformer installing hole that screw 6a is each passed through on generator housing 7, copolar lug plate insulate
It is screwed in the internal thread of transformer stem stem after piece installing hole and copolar lug plate installing hole, by copolar lug plate 1, copolar lug plate
Insulating trip 2, mutual inductor coil 3, main stator winding connection piece 4 and transformer stem stem 5 are fixed on the inner surface of generator housing 7
On.
The invention has the advantage that proposing a kind of mounting structure of transformer in improved oil cooling alternating current generator, significantly
Improve mair motor end radiating condition, improve the reliability of motor work simultaneously.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the k-k sectional view of Fig. 1.
Fig. 3 is the m of Fig. 1 to partial view.
Specific embodiment
Below the present invention is described in further details.Referring to Fig. 1 to Fig. 3, a kind of oil cooling alternating current generator transformer
Mounting structure, including 3 mutual inductor coils 3 and generator public output 8, generator public output 8 is fixed on generator
On public output fairlead on housing 7, the output end of mutual inductor coil 3 and the electrical connection being fixed on generator housing 7
Device socket connects；It is characterized in that: the mounting structure of mutual inductor coil 3 include copolar lug plate 1, copolar lug plate insulating trip 2,
4,3 transformer stem stems 5 of 3 main stator winding connection pieces and 3 fixing screws assemblies 6；
A, transformer stem stem 5 are the nut with cylindrical outer shape of copper material manufacture, and mutual inductor coil 3 is enclosed within transformer
The outside of stem stem 5, the axial length of mutual inductor coil 3 is not more than the axial length of transformer stem stem 5, in transformer stem stem 5
There is a male half coupling lower end；
B, main stator winding connection piece 4 be shaped as angle shape, its material is identical with the material of transformer stem stem 5,
One welding hole, the male half coupling end insertion welding hole of transformer stem stem 5 lower end are had on the horizontal arm of main stator winding connection piece 4
Interior and be welded as entirety, wiring hole is had on the upright arm of main stator winding connection piece 4,3 main stator windings of generator
Common port and above-mentioned wiring hole are welded as entirety；
The fanning strip that c, copolar lug plate 1 manufacture for copper material, external diameter is consistent with the internal diameter of generator housing, connects in copolar
3 copolar lug plate installing holes are along the circumferential direction had on line piece 1, the upper end of 3 transformer stem stems 5 respectively with copolar lug plate
1 is welded as entirety, and the screwed hole of 3 transformer stem stems 5 is aligned with 3 copolar lug plate installing holes, respectively in copolar lug plate 1
Left end have a public output pass through hole；
D, copolar lug plate insulating trip 2 shape and size identical with copolar lug plate 1, copolar lug plate insulating trip 2 covers
Cover on the upper surface of copolar lug plate 1；
E, 3 transformer installation step holes are had on generator housing 7, the axis in 3 transformer installation step holes with
The axis co-planar of copolar lug plate installing hole, the position in 3 transformer installation step holes respectively with 3 copolar lug plate installing holes
Position align, on transformer installation step hole the internal diameter of sector hole be more than lower sector hole internal diameter, copolar lug plate insulating trip 2 left end
Public output pass through the public output of hole and copolar lug plate 1 left end to pass through borehole jack outside generator public output 8
Face, public output passes through hole and generator public output 8 to be welded as entirety；
F, described fixing screws assembly 6 are by screw 6a, the 1st insulating washer 6b, the 2nd insulating washer 6c, the 1st sealing ring
6d, the 2nd sealing ring 6e, insulation sleeve 6f composition；2nd sealing ring 6e is located at the bottom of sector hole on transformer installation step hole, insulation
Packing ring 6c is located above the 2nd sealing ring 6e, and the 1st sealing ring 6d is located above insulating washer 6c, and the 1st insulating washer 6b is located at
The outside of the 2nd insulating washer 6c, the transformer installing hole that screw 6a is each passed through on generator housing 7, copolar lug plate insulate
It is screwed in the internal thread of transformer stem stem after piece installing hole and copolar lug plate installing hole, by copolar lug plate 1, copolar lug plate
Insulating trip 2, mutual inductor coil 3, main stator winding connection piece 4 and transformer stem stem 5 are fixed on the inner surface of generator housing 7
On.
The operation principle of the present invention is: the three-phase common port lead-out wire of the main stator winding of oil cooling alternating current generator is fixed with main
Sub- winding connection piece 4 welds together, and main stator winding connection piece 4 and transformer stem stem 5 weld together, transformer stem stem 5
Weld together with copolar lug plate 1, form current path.The electric current of alternating current generator passes through main stator winding connection piece 4, mutually
Sensor stem stem 5 and copolar lug plate 1 form path, after a rated transformation ratio scaling of mutual inductor coil, provide through electric connector
To controller rectification, realize current detecting and defencive function.Meanwhile, main stator winding connection piece 4, transformer stem stem 5 and copolar
Lug plate 1 also forms the mounting bracket of mutual inductor coil 3, and mutual inductor coil 3 is fixing.This structure had both achieved transformer knot
The reliability of structure is installed, and is simultaneously achieved mutual inductance detection function.
Embodiment, the motor of a 30kva, oil cooling alternative electric generation is achieved using mutual inductor coil mounting structure of the present invention
The current detecting of machine and defencive function.
Claims (1)
1. a kind of mounting structure of oil cooling alternating current generator transformer, including 3 mutual inductor coils (3) and the public output of generator
End (8), generator public output (8) is fixed on the public output fairlead on generator housing (7), mutual inductor coil
(3) output end is connected with the electric connector socket being fixed on generator housing (7)；It is characterized in that: mutual inductor coil (3)
Mounting structure include copolar lug plate (1), copolar lug plate insulating trip (2), 3 main stators winding connection piece (4), 3 mutually
Sensor stem stem (5) and 3 fixing screws assemblies (6)；
A, transformer stem stem (5) are the nut with cylindrical outer shape of copper material manufacture, and mutual inductor coil (3) is enclosed within transformer
The outside of stem stem (5), the axial length of mutual inductor coil (3) is not more than the axial length of transformer stem stem (5), in transformer core
There is a male half coupling lower end of post (5)；
B, main stator winding connection piece (4) be shaped as angle shape, its material is identical with the material of transformer stem stem (5),
One welding hole, the male half coupling end insertion weldering of transformer stem stem (5) lower end are had on the horizontal arm of main stator winding connection piece (4)
Connect in the hole and be welded as entirety, wiring hole, 3 main stators of generator are had on the upright arm of main stator winding connection piece (4)
The common port of winding and above-mentioned wiring hole are welded as entirety；
The fanning strip that c, copolar lug plate (1) manufacture for copper material, external diameter is consistent with the internal diameter of generator housing, in copolar wiring
3 copolar lug plate installing holes are along the circumferential direction had on piece (1), the upper end of 3 transformer stem stems (5) respectively with copolar wiring
Piece (1) is welded as entirety, and the screwed hole of 3 transformer stem stems (5) is aligned with 3 copolar lug plate installing holes, respectively in copolar
The left end of lug plate (1) has a public output to pass through hole；
D, the shape and size of copolar lug plate insulating trip (2) are identical with copolar lug plate (1), copolar lug plate insulating trip (2)
Cover on the upper surface of copolar lug plate (1)；
E, 3 transformer installation step holes are had on generator housing (7), the axis in 3 transformer installation step holes is together
The axis co-planar of pole lug plate installing hole, the position in 3 transformer installation step holes respectively with 3 copolar lug plate installing holes
Position aligns, and on transformer installation step hole, the internal diameter of sector hole is more than the internal diameter of lower sector hole, copolar lug plate insulating trip (2) left end
Public output pass through the public output of hole and copolar lug plate (1) left end to pass through borehole jack in generator public output
(8), outside, public output passes through hole and generator public output (8) to be welded as entirety；
F, described fixing screws assembly (6) are by screw 6 (a), the 1st insulating washer 6 (b), the 2nd insulating washer 6 (c), the 1st sealing
Circle 6 (d), the 2nd sealing ring 6 (e), insulation sleeve 6 (f) composition；2nd sealing ring 6 (e) is located at sector hole on transformer installation step hole
Bottom, insulating washer 6 (c) is located above the 2nd sealing ring 6 (e), and the 1st sealing ring 6 (d) is located above insulating washer 6 (c),
1st insulating washer 6 (b) is located at the outside of the 2nd insulating washer 6 (c), and screw 6 (a) is each passed through mutual on generator housing (7)
It is screwed into the internal thread of transformer stem stem after sensor installing hole, copolar lug plate insulating trip installing hole and copolar lug plate installing hole
In, by copolar lug plate (1), copolar lug plate insulating trip (2), mutual inductor coil (3), main stator winding connection piece (4) and mutually
Sensor stem stem (5) is fixed on the inner surface of generator housing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964458.8A CN106341001B (en) | 2016-11-04 | 2016-11-04 | A kind of mounting structure of the cold alternating current generator mutual inductor of oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964458.8A CN106341001B (en) | 2016-11-04 | 2016-11-04 | A kind of mounting structure of the cold alternating current generator mutual inductor of oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106341001A true CN106341001A (en) | 2017-01-18 |
| CN106341001B CN106341001B (en) | 2018-12-11 |
Family
ID=57841013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610964458.8A Active CN106341001B (en) | 2016-11-04 | 2016-11-04 | A kind of mounting structure of the cold alternating current generator mutual inductor of oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106341001B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008210935A (en) * | 2007-02-26 | 2008-09-11 | Daihen Corp | Installation structure of large-sized electric apparatus |
| KR101121661B1 (en) * | 2010-08-30 | 2012-03-09 | (주)우강산업전기 | Connecting structure of bushing for a transformer |
| JP2015192140A (en) * | 2014-03-31 | 2015-11-02 | 株式会社ダイヘン | Transformer |
| CN204927016U (en) * | 2015-06-19 | 2015-12-30 | 河南森源电气股份有限公司 | Current transformer ware body fixing device |
-
2016
- 2016-11-04 CN CN201610964458.8A patent/CN106341001B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008210935A (en) * | 2007-02-26 | 2008-09-11 | Daihen Corp | Installation structure of large-sized electric apparatus |
| KR101121661B1 (en) * | 2010-08-30 | 2012-03-09 | (주)우강산업전기 | Connecting structure of bushing for a transformer |
| JP2015192140A (en) * | 2014-03-31 | 2015-11-02 | 株式会社ダイヘン | Transformer |
| CN204927016U (en) * | 2015-06-19 | 2015-12-30 | 河南森源电气股份有限公司 | Current transformer ware body fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106341001B (en) | 2018-12-11 |
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