CN201820606U - Low-voltage Y wiring of triangular transformer - Google Patents
Low-voltage Y wiring of triangular transformer Download PDFInfo
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- CN201820606U CN201820606U CN2010205517948U CN201020551794U CN201820606U CN 201820606 U CN201820606 U CN 201820606U CN 2010205517948 U CN2010205517948 U CN 2010205517948U CN 201020551794 U CN201020551794 U CN 201020551794U CN 201820606 U CN201820606 U CN 201820606U
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Abstract
The utility model discloses a low-voltage Y wiring of a triangular transformer, wherein the tail ends x, y, z of an A phase low-voltage coil, a B phase low-voltage coil and a C phase low-voltage coil adopt Y-shaped connections; a connecting point of the three coils is served as a lead-out point of a neutral wire O; the length of a connecting busbar between the tail end y of the B phase and the lead-out point of the neutral wire O is smaller than that of the tail end x of the A phase and the lead-out point of the neutral wire O, as well as the tail end z of the C phase and the lead-out point of the neutral wire O; connecting busbars at the tail ends of the low-voltage coils adopt a vertical laying manner; and a VCL (Vertical Center Line) of the A phase and the C phase is served as a benchmark of a lead wire at the head end of the B phase, one end of the lead wire connected with coil in the B phase is bent into an angle within 30 to 90 degrees towards the left or the right, and the other end of the lead wire is led out along the direction of the VCL of the A phase and the C phase. The low-voltage Y wiring of the triangular transformer has the advantages that the total length of the busbars at the head ends and the tail ends of the three phases is equivalent, no sectional area is added on the lead wire at the head end of the B phase, and the electric resistance among the three phases is balanced.
Description
Technical field:
The utility model relates to a kind of low pressure Y wiring of transformer, belongs to field of electrical equipment, particularly the low pressure Y connection of triangularity depressor.
Background technology:
The three-phase coil of triangularity depressor is triangularly arranged, its B phase low-voltage lead intractable, and therefore relevant producer has proposed many connection types.
A kind of form that proposes in the patent 200910115511.7 is: draw after B phase low-voltage lead is formed a semi-surrounding along the transformer side.
The another kind of form that proposes in the patent 200820189288.1 is: the low-voltage lead of B phase is crossed from the top of transformer drawn.
More than the common drawback of two kinds of schemes be: its B phase terminal is longer, for reducing its lead resistance, by increasing the lead-in wire sectional area, guarantees that three-phase low pressure goes out the balance of line resistance.
The utility model content:
The purpose of this utility model is: propose a kind of low pressure Y connection lead-in wire form of triangularity depressor, the B phase head end lead-in wire that can solve the triangularity depressor is longer than A mutually and the C head end unbalanced problem of three-phase lead resistance that goes between and cause mutually.
Implementation method of the present utility model: low-voltage coil lead-in wire all-in resistance is to be made of head end and end leads resistance, is guaranteeing under the constant situation of lead-in wire all-in resistance that B phase head end lead-in wire can remedy by the length that shortens the mutually terminal y lead-in wire of B than length; A is very short with C head end lead-in wire mutually mutually, and the terminal x and the z wire length that can increase them remedy; When the total length of the head end of each phase lead-in wire and end leads is all identical, just can realize the balance of three-phase lead resistance.
In the utility model: A phase, B adopt Y shape to be connected with terminal x, the y of C phase low-voltage coil with z mutually, and tie point is the leading point of zero line o.The mutually terminal y of B and connection busbar length between the zero line o leading point are shorter than the mutually terminal x of A respectively and are connected the busbar length between the zero line o leading point and the terminal z and the busbar length that is connected between the zero line o leading point of C phase; The connection busbar of low-voltage coil end is for vertically shelving mode.
In the utility model: A phase, B are that level is shelved mode with terminal x, the y of C phase low-voltage coil and the busbar that is connected of z mutually.
In the utility model: the connection busbar of B phase head end lead-in wire is that level is shelved, it is a benchmark with C vertical center line mutually with A mutually, an end that is connected with coil left or 30 ° of bendings to the right--90 ° angle, the other end is drawn with C vertical center line direction mutually mutually along A.
Advantage of the present utility model is: the three-phase head end is suitable with terminal wiring busbar total length, and the mutually terminal outlet of B does not need to increase advantages such as sectional area, three-phase resistance balance yet.
Description of drawings
The terminal wiring busbar of Fig. 1 low-voltage coil vertically shelve schematic diagram
The level of the terminal wiring busbar of Fig. 2 low-voltage coil is shelved schematic diagram
Among the figure: the 1st, zero line connects busbar; The 2nd, the connection busbar of the mutually terminal x of A; The 3rd, the connection busbar of the mutually terminal y of B; The 4th, the connection busbar of the mutually terminal z of C; The 5th, upper clamping piece; The 6th, unshakable in one's determination; The 7th, C phase head end c outlet busbar; The 8th, B phase head end b outlet busbar; The 9th, A phase head end a outlet busbar.
Embodiment
Accompanying drawing discloses basic structure of the present utility model without limitation, below in conjunction with legend the utility model is described further.
Among Fig. 1: the busbar 4 that is connected of the connection busbar 2 of zero line busbar 1, the mutually terminal x of A, the connection busbar 3 of the mutually terminal y of B and the mutually terminal z of C intersects at the o place, forms Y and connects; Schematically provide the be connected length of busbar 3 of B among the figure and be shorter than A be connected with the C length effect of busbar 4 of busbar 2 that is connected respectively; Connect busbar 1, connect busbar 2, connect busbar 3 and be connected busbar 4 for vertically shelving; 8 is B phase head end outlet busbar, an end of busbar connecting coil, to the left or bending to the right 30 ° of--90 ° of angles, the head end of B phase coil and end stagger 30 °--90 ° of angle outlets, just with B mutually head end outlet busbar connect; Also schematically provided among the figure C mutually and the line position that goes out of the head end of A phase coil and end staggered 30 °--90 ° angle, just with C mutually head end outlet busbar 7 be connected with A phase head end outlet busbar 9; The position of the terminal terminal of three-phase low-voltage coil is in vertex of a triangle that three-phase coil constituted.
Fig. 2 is the schematic diagram that terminal busbar level is shelved, and to be that level is overlapping shelve the outlet busbar of mutually terminal busbar of the A that provides among the figure and zero line, and its connected mode and low-voltage coil head end are identical with terminal processing and Fig. 1 that goes out line position.
Claims (4)
1. the low pressure Y wiring of a triangularity depressor, A phase, B adopt Y shape to be connected with terminal x, the y of C phase low-voltage coil with z mutually, tie point is the leading point of zero line o, it is characterized in that: the mutually terminal y of B and connection busbar length between the zero line o leading point are shorter than the mutually terminal x of A respectively and are connected the busbar length between the zero line o leading point and the terminal z and the busbar length that is connected between the zero line o leading point of C phase; The connection busbar of low-voltage coil end is for vertically shelving mode.
2. the low pressure Y wiring of a triangularity depressor as claimed in claim 1 is characterized in that: A phase, B are that level is shelved mode with terminal x, the y of C phase low-voltage coil and the busbar that is connected of z mutually.
3. low pressure Y wiring that requires 1 and 2 described triangularity depressors as power, it is characterized in that: the connection busbar of B phase head end lead-in wire is that level is shelved, it is a benchmark with C vertical center line mutually with A mutually, an end that is connected with coil left or 30 ° of bendings to the right--90 ° angle, the other end is drawn with C vertical center line direction mutually mutually along A.
4. the technical characterictic of three of a triangularity depressor low-voltage coils is: the head end of low-voltage coil and end have staggered 30 °--90 ° of angle outlets; The position of terminal terminal is in vertex of a triangle that three-phase coil constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205517948U CN201820606U (en) | 2010-10-08 | 2010-10-08 | Low-voltage Y wiring of triangular transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205517948U CN201820606U (en) | 2010-10-08 | 2010-10-08 | Low-voltage Y wiring of triangular transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820606U true CN201820606U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205517948U Expired - Fee Related CN201820606U (en) | 2010-10-08 | 2010-10-08 | Low-voltage Y wiring of triangular transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996747A (en) * | 2010-10-08 | 2011-03-30 | 南京苏特电气股份有限公司 | Low-voltage Y connecting wire of triangular transformer |
-
2010
- 2010-10-08 CN CN2010205517948U patent/CN201820606U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101996747A (en) * | 2010-10-08 | 2011-03-30 | 南京苏特电气股份有限公司 | Low-voltage Y connecting wire of triangular transformer |
| CN101996747B (en) * | 2010-10-08 | 2012-07-25 | 南京苏特电气股份有限公司 | Lead wire resistance balancing method of low-voltage Y connecting wire of triangular transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20181008 |