CN203552908U - Rectifier transformer with double-epitaxy-delta progressive-decrease voltage regulation function - Google Patents
Rectifier transformer with double-epitaxy-delta progressive-decrease voltage regulation function Download PDFInfo
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- CN203552908U CN203552908U CN201320674351.1U CN201320674351U CN203552908U CN 203552908 U CN203552908 U CN 203552908U CN 201320674351 U CN201320674351 U CN 201320674351U CN 203552908 U CN203552908 U CN 203552908U
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Abstract
The utility model relates to a rectifier transformer, in particular to a rectifier transformer with the double-epitaxy-delta progressive-decrease voltage regulation function. The rectifier transformer with the double-epitaxy-delta progressive-decrease voltage regulation function comprises a main transformer basic winding, a main transformer phase-shift winding, a voltage regulating transformer primary winding, a regulating transformer secondary coarse regulation winding, a regulating transformer secondary fine regulation winding and a multistage coarse and fine regulation on-load tap switch, wherein the main transformer basic winding and the main transformer phase-shift winding are arranged in a main transformer, the regulating transformer primary winding, the regulating transformer secondary coarse regulation winding and the regulating transformer secondary fine regulation winding are arranged in a voltage regulating transformer, the regulating transformer secondary coarse regulation winding comprises a first coarse regulation winding, a second coarse regulation winding, a third coarse regulation winding, a fourth coarse regulation winding and a fifth coarse regulation winding, the first coarse regulation winding, the second coarse regulation winding, the third coarse regulation winding, the fourth coarse regulation winding and the fifth coarse regulation winding are connected together in series, one or more of the first coarse regulation winding, the second coarse regulation winding, the third coarse regulation winding, the fourth coarse regulation winding and the fifth coarse regulation winding are connected to form angle joint wiring so that a double-epitaxy-delta wiring circuit can be formed, and the insulation level, over the ground, of the windings on the secondary side of the voltage regulating transformer, and the insulation level, over the ground, of the windings on the primary side of the main transformer are low; the insulation level of the switch is low, and the cost is low; the overall loss of the rectifier transformer is low, energy is saved, the environment is protected, and the requirement of an output voltage for wide-range rank difference voltage regulation is met.
Description
Technical field
The utility model relates to a kind of rectifier transformer, relates in particular to a kind of pair of extend-triangle voltage regulating rectifier transformer that falls progressively.
Background technology
Rectifier transformer has electrolytic rectifier transformer with regard to purposes, rectifier transformer, carborundum furnace transformer etc. for electric furnace.The distinguishing feature of rectifier transformer structure is many pulse wave power supplies and pressure regulation on a large scale.In order to meet load requirement to harmonic current etc. to the requirement of direct voltage glacing flatness and AC network side, rectifying device should adopt heterogeneous power supply and each circuit of conducting in turn mutually.And to realize pressure regulation on a large scale, must be at the front voltage regulating transformer with certain voltage regulating mode of setting up of rectifier transformer (being main transformer).
Tradition voltage regulating mode is the extend-triangle pressure regulation of falling progressively, and modulation secondary side is that extend-triangle multi-stage coarse and fine is adjusted continuous voltage regulating, and thickness is adjusted the common multistage continuous voltage regulating that forms.Take off one section, portion or the corner connection of two sections of coarse adjustment windings (the double compensation winding of doing).Under this connection, pressure regulation winding and main transformer first side winding line end insulation level are over the ground higher, and switch insulation grade is high, manufacture loaded down with trivial details, loss is large, cost is high.
Summary of the invention
The purpose of this utility model is to provide a kind of pair of extend-triangle variable voltage rectifier transformer that falls progressively, and holistic cost is low, compact conformation, floor space are little.
The utility model is achieved like this:
A kind of pair of extend-triangle voltage regulating rectifier transformer that falls progressively, it comprises the basic winding of main transformer in main transformer, main transformer phase shift winding, winding of modulation in voltage regulating transformer, modulation secondary coarse adjustment winding, modulation secondary fine tuning winding, multi-stage coarse and fine is adjusted on load tap changer, it comprises the first coarse adjustment winding being cascaded described modulation secondary coarse adjustment winding, the second coarse adjustment winding, the 3rd coarse adjustment winding, the 4th coarse adjustment winding, the 5th coarse adjustment winding, and by above-mentioned the first coarse adjustment winding, the second coarse adjustment winding, the 3rd coarse adjustment winding, the 4th coarse adjustment winding, one or more coarse adjustment winding in the 5th coarse adjustment winding is connected into corner connection wiring, form two extend-triangle wiring circuits, two extend-triangle wiring link testers are crossed multi-stage coarse and fine and are adjusted on load tap changer that modulation secondary fine tuning winding and modulation secondary coarse adjustment winding are coupled together.By multi-stage coarse and fine, adjust the switching of on load tap changer around coupling together, for main transformer, to provide rank difference Voltage-output in different output voltage ranges from the coarse adjustment of modulation secondary by modulation secondary fine tuning winding.
Corner connection in the middle of described voltage regulating transformer is partly drawn and is doubled as compensation.
Technique effect of the present utility model is:
1, each winding of modulation secondary side and main transformer first side winding insulation level are over the ground low;
2, switch insulation level is low, and cost is low;
3, rectifier transformer overall loss is little, energy-conserving and environment-protective;
4, realize output voltage rank difference pressure regulation on a large scale requirement;
5, between modulation net side and pressure regulation winding, two main transformers, there is not contacting of electricity, so system short-circuit is little to the harm of pressure regulation winding and rectifier transformer, good reliability;
6, low, the compact conformation of holistic cost, floor space are little.
Accompanying drawing explanation
Fig. 1 is connection principle schematic diagram of the present utility model.
Fig. 2 is traditional structure modulation secondary side voltage vector diagram.
Fig. 3 is the utility model secondary side voltage vector diagram.
Embodiment
Below in conjunction with 1,2,3 pairs of the utility model of accompanying drawing, be described in detail:
A kind of pair of extend-triangle voltage regulating rectifier transformer that falls progressively, it comprises the basic winding 9 of main transformer in main transformer, main transformer phase shift winding 10, winding 1 of modulation in voltage regulating transformer, modulation secondary coarse adjustment winding, modulation secondary fine tuning winding 3, multi-stage coarse and fine is adjusted on load tap changer 4, it comprises the first coarse adjustment winding 2 being cascaded described modulation secondary coarse adjustment winding, the second coarse adjustment winding 5, the 3rd coarse adjustment winding 6, the 4th coarse adjustment winding 7, the 5th coarse adjustment winding 8, and by above-mentioned the first coarse adjustment winding 2, the second coarse adjustment winding 5, the 3rd coarse adjustment winding 6, the 4th coarse adjustment winding 7, one or more coarse adjustment winding in the 5th coarse adjustment winding 8 is connected into corner connection wiring, form two extend-triangle wiring circuits, two extend-triangle wiring link testers are crossed multi-stage coarse and fine and are adjusted on load tap changer 4 that modulation secondary fine tuning winding 3 and modulation secondary coarse adjustment winding are coupled together.
Corner connection in the middle of described voltage regulating transformer is partly drawn and is doubled as compensation.
Fig. 2 is traditional structure, and Fig. 3 is the utility model, and relatively two voltage vector diagrams can be found out, Am in Fig. 3 view, and Bm, Cm voltage to earth is obviously much smaller.
Claims (2)
1. two extend-triangles voltage regulating rectifier transformer that falls progressively, it comprises the basic winding of main transformer (9) in main transformer, main transformer phase shift winding (10), the winding of modulation (1) in voltage regulating transformer, modulation secondary coarse adjustment winding, modulation secondary fine tuning winding (3), multi-stage coarse and fine is adjusted on load tap changer (4), it is characterized in that: it comprises the first coarse adjustment winding (2) being cascaded described modulation secondary coarse adjustment winding, the second coarse adjustment winding (5), the 3rd coarse adjustment winding (6), the 4th coarse adjustment winding (7), the 5th coarse adjustment winding (8), and by above-mentioned the first coarse adjustment winding (2), the second coarse adjustment winding (5), the 3rd coarse adjustment winding (6), the 4th coarse adjustment winding (7), one or more coarse adjustment winding in the 5th coarse adjustment winding (8) is connected into corner connection wiring, form two extend-triangle wiring circuits, two extend-triangle wiring link testers are crossed multi-stage coarse and fine and are adjusted on load tap changer (4) that modulation secondary fine tuning winding (3) and modulation secondary coarse adjustment winding are coupled together.
2. the according to claim 1 pair of extend-triangle voltage regulating rectifier transformer that falls progressively, is characterized in that: the corner connection in the middle of described voltage regulating transformer is partly drawn and doubled as compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674351.1U CN203552908U (en) | 2013-10-30 | 2013-10-30 | Rectifier transformer with double-epitaxy-delta progressive-decrease voltage regulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674351.1U CN203552908U (en) | 2013-10-30 | 2013-10-30 | Rectifier transformer with double-epitaxy-delta progressive-decrease voltage regulation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203552908U true CN203552908U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674351.1U Expired - Fee Related CN203552908U (en) | 2013-10-30 | 2013-10-30 | Rectifier transformer with double-epitaxy-delta progressive-decrease voltage regulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203552908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559990A (en) * | 2013-10-30 | 2014-02-05 | 江西变压器科技股份有限公司 | Double-extended-triangle descending voltage regulation rectifier transformer |
-
2013
- 2013-10-30 CN CN201320674351.1U patent/CN203552908U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559990A (en) * | 2013-10-30 | 2014-02-05 | 江西变压器科技股份有限公司 | Double-extended-triangle descending voltage regulation rectifier 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 |
Granted publication date: 20140416 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |