CN203150372U - Voltage transformer with serial-parallel output function - Google Patents
Voltage transformer with serial-parallel output function Download PDFInfo
- Publication number
- CN203150372U CN203150372U CN 201320023094 CN201320023094U CN203150372U CN 203150372 U CN203150372 U CN 203150372U CN 201320023094 CN201320023094 CN 201320023094 CN 201320023094 U CN201320023094 U CN 201320023094U CN 203150372 U CN203150372 U CN 203150372U
- Authority
- CN
- China
- Prior art keywords
- voltage
- voltage transformer
- low pressure
- winding
- output function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Transformers For Measuring Instruments (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a voltage transformer with a serial-parallel output function. The voltage transformer mainly comprises a high-voltage winding, two low-voltage windings, a high-voltage insulating cylinder, a low-voltage insulating cylinder, an iron core and the like. The voltage transformer is applicable to special voltage transformers with secondary voltage in a double relation, and output of secondary voltage is achieved by changing connection manners of the two low-voltage windings. The voltage transformer is simple to design, easy to manufacture, low in cost, and convenient and fast to operate.
Description
Technical field
The utility model relates to a kind of voltage transformer, especially designs a kind of voltage transformer with the connection in series-parallel output function, belongs to the High-Voltage Electrical Appliances field.
Background technology
The general requirement of the voltage transformer that uses in the electric power system at present has multiple no-load voltage ratio, the comparatively special voltage transformer of a kind of no-load voltage ratio is wherein arranged, its secondary voltage becomes the twice relation, can use the frame mode of being formed by two independent winding to this voltage transformer, also can use the frame mode of being formed by single band tap winding.
For the frame mode of being made up of two independent winding, its parameter designing is simple, be easy to make, but the copper cash winding employed copper cash bigger than no-load voltage ratio that uses when the little winding of coiling no-load voltage ratio Duo one times, wastes raw material, increased manufacturing cost.
For the frame mode of being formed by single band tap winding, can realize the requirement of rated secondary voltage and rated capacity flexibly, and when the little winding of coiling no-load voltage ratio, can utilize the big winding of no-load voltage ratio to save copper cash, but the process of the design of winding parameter and winding technique more complicated all is not easy to realize like this.
Summary of the invention
Problem to be solved in the utility model is: the problem at prior art exists, a kind of voltage transformer with the connection in series-parallel output function is provided, and solve the deficiency that its prior art exists.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of voltage transformer with the connection in series-parallel output function mainly is made up of high pressure winding, low pressure winding, High-Voltage Insulation tube, low-voltage insulation tube and iron core etc., and described low pressure winding has two, and two low pressure windings can be connected in series, and also can be connected in parallel.
Described a kind of voltage transformer with the connection in series-parallel output function need satisfy voltage transformer technical parameter and performance requirement, comprises rated capacity, nominal operation frequency, rated primary voltage, rated secondary voltage, insulation level, overvoltage factor, class of accuracy combination etc.Simultaneously, need satisfy the requirement of secondary winding coil winding mode.
The parameter of described two low pressure windings is identical, comprises pricking number, line footpath, winding displacement density degree etc.
The parameter of described low pressure winding is benchmark with the one group of parameter that satisfies the maximum no-load voltage ratio of voltage transformer.
The beneficial effects of the utility model are: a kind of voltage transformer with the connection in series-parallel output function of the utility model connects the no-load voltage ratio requirement that realizes secondary voltage by the serial or parallel connection to two low pressure windings, simplicity of design, be easy to make, reduce cost, and convenient to operation.
Description of drawings
Fig. 1 is electrical schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model;
Structural representation when Fig. 3 is connected in parallel for the utility model;
Structural representation when Fig. 4 is connected in series for the utility model.
1-high pressure winding; 2-low pressure winding (a); 3-low pressure winding (b); 4-High-Voltage Insulation tube; 5-low-voltage insulation tube; The 6-iron core.
A, N are high pressure winding link, and A is one of the three-phase high-voltage line end that is connected, and N is connected ground connection with centerline; A1, a2, a3 and a4 are low pressure winding output.
Embodiment
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, a kind of voltage transformer with the connection in series-parallel output function mainly is made up of high pressure winding 1, low pressure winding (a) 2, low pressure winding (b) 3, High-Voltage Insulation tube 4, low-voltage insulation tube 5 and iron core 6 etc.Described low pressure winding comprises 3 two of low pressure winding (a) 2 and low pressure windings (b), and when a1 is connected with a3, when a2 was connected with a4, a1 and a2 were as the secondary output, and composition is connected in parallel; When a2 was connected with a3, a1 and a4 were as the secondary output, and composition is connected in series.Two low pressure windings (a) 2, (b) 3 place unshakable in one's determination 6 same stem respectively; isolate with low-voltage insulation tube 5 insulating material such as grade each other; the output of low pressure winding (a) 2, (b) 3 is connected to measuring instrument or protective relaying device through the secondary connection plate, by the connected mode of secondary connection plate control low pressure winding (a) 2, (b) 3.
When the output a1 of low pressure winding (a) 2, (b) 3 is connected with a3, composition was connected in parallel when a2 was connected with a4, the rated capacity of voltage transformer is two low pressure winding rated capacity sums, and rated secondary voltage is the rated secondary voltage of single secondary winding output; Form when the output a2 of low pressure winding (a) 2, (b) 3 is connected with a3 and be connected in series, the rated capacity of voltage transformer is two low pressure winding rated capacity sums, and rated secondary voltage is the rated secondary voltage sum of two secondary winding outputs.
Claims (3)
1. voltage transformer with the connection in series-parallel output function, mainly by high pressure winding, low pressure winding, High-Voltage Insulation tube, low-voltage insulation tube and unshakable in one's determination the composition, it is characterized in that: described low pressure winding has two, and two low pressure windings perhaps are connected in parallel for being connected in series.
2. a kind of voltage transformer with the connection in series-parallel output function according to claim 1, it is characterized in that: the parameter of described two low pressure windings is identical.
3. a kind of voltage transformer with the connection in series-parallel output function according to claim 1 and 2 is characterized in that: the parameter of described low pressure winding is benchmark with the one group of parameter that satisfies the maximum no-load voltage ratio of voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023094 CN203150372U (en) | 2013-01-16 | 2013-01-16 | Voltage transformer with serial-parallel output function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023094 CN203150372U (en) | 2013-01-16 | 2013-01-16 | Voltage transformer with serial-parallel output function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203150372U true CN203150372U (en) | 2013-08-21 |
Family
ID=48977881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320023094 Expired - Fee Related CN203150372U (en) | 2013-01-16 | 2013-01-16 | Voltage transformer with serial-parallel output function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203150372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065343A (en) * | 2018-07-10 | 2018-12-21 | 中国电力科学研究院有限公司 | A kind of high-pressure double-stage voltage transformer |
-
2013
- 2013-01-16 CN CN 201320023094 patent/CN203150372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065343A (en) * | 2018-07-10 | 2018-12-21 | 中国电力科学研究院有限公司 | A kind of high-pressure double-stage voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103050260A (en) | 330kV-level three-phase three-winding high-impedance power auto-transformer with function of on-load voltage regulation | |
| CN202948822U (en) | Dry-type transformer | |
| CN203232785U (en) | Dry-type transformer | |
| CN202067649U (en) | On-load capacity-regulating power transformer | |
| CN202189670U (en) | Combined current converter | |
| CN203150372U (en) | Voltage transformer with serial-parallel output function | |
| CN202816595U (en) | High-insulation transformer | |
| CN102420043B (en) | Single-phase high-impedance auto-transformer | |
| CN201440371U (en) | 10KV to 20KV adjustable-type combinational box-type transformer | |
| CN204666700U (en) | A kind of straight-through current transformer | |
| CN203746639U (en) | Line-terminal on-load voltage regulating single-phase 220kV high-impedance transformer | |
| CN203444935U (en) | Direct distribution type distribution transformer | |
| CN203180458U (en) | Self-powered ice-melting electric reactor | |
| CN102360880A (en) | Ferroresonance-preventing self-power supply device of electronic voltage transformer | |
| CN201655514U (en) | Dry type distribution transformer capable of inputting 10kV voltage and 20kV voltage by means of transformation | |
| CN202084409U (en) | Inverse Scott dry type transformer | |
| CN101968994A (en) | Double-ring on-load tap changer with ultrahigh impedance of 110 kV | |
| CN204010996U (en) | Dry-type distribution transformer with split winding | |
| CN201638648U (en) | Microwave oven high-tension transformer and microwave oven comprising same | |
| CN203242489U (en) | Measuring current transformer with tap for ultra-high voltage power system | |
| CN204884810U (en) | Height overflows paper tinsel around dry -type transformer winding | |
| CN103050256A (en) | High-voltage strip coarse-fine voltage adjusting power transformer | |
| CN204230025U (en) | A kind of power power-supply current transformer of electrical malfunction | |
| CN203038770U (en) | 10 kV and 20 kV conversion distribution transformer | |
| CN202268239U (en) | Dry-type transformer for single-phase 10kV and 20kV mutual conversion |
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: 20130821 Termination date: 20200116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |