CN210865852U - Lead structure of single-phase on-load tap changer with self-coupling - Google Patents
Lead structure of single-phase on-load tap changer with self-coupling Download PDFInfo
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- CN210865852U CN210865852U CN201922335170.6U CN201922335170U CN210865852U CN 210865852 U CN210865852 U CN 210865852U CN 201922335170 U CN201922335170 U CN 201922335170U CN 210865852 U CN210865852 U CN 210865852U
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Abstract
The utility model relates to a single-phase self on-load tap changing transformer's lead structure belongs to transformer technical field. The technical scheme is as follows: the upper part of the wiring (1) of the single-phase on-load tap changer is horizontally arranged, the lower part of the wiring (2) is vertically arranged, the upper part of the wiring (1) and the lower part of the wiring (2) are converged to the on-load switch (5), and the upper part of the wiring (1) and the lower part of the wiring (2) are connected to the corresponding contact of the on-load switch after being subjected to cold pressure welding through the three-way connector (9). The utility model has the advantages that: the insulation distance between tapping lines is met, and the lead is simple in structure and convenient to wire. Meanwhile, the electric field intensity among all the tapping lines is reduced, and the electrical performance of the transformer is improved.
Description
Technical Field
The utility model relates to a single-phase self on-load tap changing transformer's lead structure belongs to transformer technical field.
Background
The voltage regulating coil of the single-phase autotransformer is generally of a multi-spiral structure, the number of tapping wires is large, and if the voltage regulating coil is led out, the upper lead and the lower lead are connected firstly and then led out to be connected to the corresponding contacts of the switch. The structure has high requirement on the internal space of the transformer, and leads to the increase of the volume and the weight of the transformer oil tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single-phase self on-load tap-changing transformer's lead structure had both satisfied the insulation distance between the tapping line, made the simple structure of lead wire again, and the wiring is convenient, has reduced the electric field strength between each tapping line simultaneously, and the trend of tapping lead-out wire keeps away from high field intensity region, has improved the electrical property of transformer, solves the above-mentioned technical problem that prior art exists.
The technical scheme of the utility model is that:
a lead structure of a single-phase on-load tap changer is characterized in that a carrier switch is arranged at a high-voltage side post position of the single-phase on-load tap changer, the single-phase on-load tap changer is provided with a tap coil, and a lead wire of the tap coil is axially led out from the upper part and the lower part of the high-voltage side of a body of the single-phase on-load tap changer; the upper tapping line of the single-phase on-load tap changing transformer is horizontally arranged, the lower tapping line is vertically arranged, the upper tapping line and the lower tapping line are converged to the on-load switch, and the upper tapping line and the lower tapping line are connected to the corresponding contact of the on-load switch after being in cold pressure connection through the three-way connector.
And meanwhile, a cushion block is added between the tapping leads to divide the electric field of the leads.
The upper part of the connecting wire is fixed on the body of the single-phase on-load tap changing autotransformer through an upper part tapping wire lead clamp; and the lower part of the wiring is fixed on the body of the single-phase on-load tap changer through a lower part of wiring wire clamp.
The body of the single-phase on-load tap-changing autotransformer is provided with a vertical bar which is vertically arranged, the upper part of the vertical bar is provided with a fixed upper part wiring down-leading wire clamp which is horizontally arranged, and an upper part tapping wire is fixed on the fixed upper part wiring down-leading wire clamp; the lower part of the vertical bar is provided with a fixed lower wiring lead clamp which is horizontally arranged, and the lower wiring lead clamp is fixed on the fixed lower wiring lead clamp.
The top of the vertical bar is provided with a horizontally arranged tapping line partition plate, and the upper tapping line is fixed on the tapping line partition plate through an upper tapping line conductor clamp. The tapping line partition board divides each tapping line by the partition board and divides the tapping line electric field of the leading-out line.
The voltage regulating coil of the single-phase on-load self-coupling voltage regulating transformer is of a single-layer ten-spiral structure, the voltage regulating coil is not arranged on the outermost layer of the transformer body, and outgoing lines of the voltage regulating coil are axially led out from the upper part and the lower part of the high-voltage side of the transformer body.
The utility model has the advantages that: the insulation distance between tapping lines is met, and the lead is simple in structure and convenient to wire. Meanwhile, a tapping line partition plate is additionally arranged between the tapping leads to divide an electric field of the outgoing line, so that the electric field intensity between the tapping lines is reduced, the direction of the tapping outgoing line is far away from a high field intensity area, and the electrical performance of the transformer is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic top view of the upper lead of the present invention;
FIG. 3 is a schematic top view of the lower lead of the present invention;
FIG. 4 is a schematic side view of the present invention;
FIG. 5 is a schematic view of the three-way joint of the present invention;
in the figure: the device comprises an upper part wiring 1, a lower part wiring 2, an upper part tapping line lead clamp 3, a lower part wiring lead clamp 4, a load switch 5, a vertical bar 6, a fixed upper part wiring lower lead clamp 7, a fixed lower part tapping line upper lead clamp 8, a three-way joint 9 and a tapping line partition plate 10.
Detailed Description
The present invention will be further described with reference to the following examples in conjunction with the accompanying drawings.
A lead structure of a single-phase on-load tap changer (OLTC) is characterized in that a carrier switch 5 is arranged at a high-voltage side column position of the single-phase OLTC and is provided with a tap coil, and a lead wire of the tap coil is axially led out from the upper part and the lower part of the high-voltage side of a body of the single-phase OLTC; the upper tapping line 1 of the single-phase on-load tap changing transformer is horizontally arranged, the lower tapping line 2 is vertically arranged, the upper tapping line 1 and the lower tapping line 2 are converged to the on-load switch 5, and the upper tapping line 1 and the lower tapping line 2 are connected to the corresponding contact of the on-load switch after being subjected to cold pressure welding through the three-way connector 9.
And meanwhile, a cushion block is added between the tapping leads to divide the electric field of the leads.
The upper part wiring 1 is fixed on the body of the single-phase on-load tap changer through an upper part wiring lead clamp 3; the lower part of the wiring 2 is fixed on the body of the single-phase on-load tap changer through a lower part of the wiring conducting wire clamp 4.
The body of the single-phase on-load tap changer is provided with a vertical bar 6 which is vertically arranged, the upper part of the vertical bar 6 is provided with a fixed upper part wiring lower lead wire clamp 7 which is horizontally arranged, and an upper part wiring 1 is fixed on the fixed upper part wiring lower lead wire clamp 7; the lower part of the upright bar 6 is provided with a fixed lower wiring lower guide wire clamp 8 which is horizontally arranged, and the lower wiring 2 is fixed on the fixed lower wiring lower guide wire clamp 8.
The top of the upright bar 6 is provided with a horizontally arranged tapping line partition plate 10, and the upper part of the wiring 1 is fixed on the tapping line partition plate 10 through the upper part of the wiring lead clamp 3. The branch wiring partition plate 10 is used for separating each branch wiring by the partition plate and dividing a branch wiring electric field of the outgoing line.
The voltage regulating coil of the single-phase on-load self-coupling voltage regulating transformer is of a single-layer ten-spiral structure, the voltage regulating coil is not arranged on the outermost layer of the transformer body, and outgoing lines of the voltage regulating coil are axially led out from the upper part and the lower part of the high-voltage side of the transformer body.
Claims (2)
1. The utility model provides a lead structure of single-phase self coupling on-load tap-changing transformer which characterized in that: the on-load switch (5) is arranged at the high-voltage side post position of the single-phase on-load tap changer, the single-phase on-load tap changer is provided with a tap coil, and the outgoing line of the tap coil is axially led out from the upper part and the lower part of the high-voltage side of the body of the single-phase on-load tap changer; the upper part of the wiring (1) of the single-phase on-load tap changer is horizontally arranged, the lower part of the wiring (2) is vertically arranged, the upper part of the wiring (1) and the lower part of the wiring (2) are converged to a load switch (5), and the upper part of the wiring (1) and the lower part of the wiring (2) are connected to a corresponding contact of the load switch after being subjected to cold pressure connection through a tee joint (9).
2. The lead structure of a single phase on-load tap changer according to claim 1, wherein: the body of the single-phase on-load tap changer is provided with a vertical bar (6) which is vertically arranged, the upper part of the vertical bar (6) is provided with a fixed upper part wiring down-leading wire clamp (7) which is horizontally arranged, and the upper part wiring (1) is fixed on the fixed upper part wiring down-leading wire clamp (7); the lower part of the vertical bar (6) is provided with a fixed lower wiring lead clamp (8) which is horizontally arranged, and the lower wiring part (2) is fixed on the fixed lower wiring lead clamp (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335170.6U CN210865852U (en) | 2019-12-24 | 2019-12-24 | Lead structure of single-phase on-load tap changer with self-coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922335170.6U CN210865852U (en) | 2019-12-24 | 2019-12-24 | Lead structure of single-phase on-load tap changer with self-coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210865852U true CN210865852U (en) | 2020-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922335170.6U Active CN210865852U (en) | 2019-12-24 | 2019-12-24 | Lead structure of single-phase on-load tap changer with self-coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210865852U (en) |
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2019
- 2019-12-24 CN CN201922335170.6U patent/CN210865852U/en active Active
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