CN203456262U - High-pressure roughly/finely-tuned on-load voltage-regulating power transformer - Google Patents
High-pressure roughly/finely-tuned on-load voltage-regulating power transformer Download PDFInfo
- Publication number
- CN203456262U CN203456262U CN201320585413.1U CN201320585413U CN203456262U CN 203456262 U CN203456262 U CN 203456262U CN 201320585413 U CN201320585413 U CN 201320585413U CN 203456262 U CN203456262 U CN 203456262U
- Authority
- CN
- China
- Prior art keywords
- winding
- cake
- voltage
- fine tuning
- coarse adjustment
- 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
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a high-pressure roughly/finely-tuned on-load voltage-regulating power transformer, which belongs to the technical field of transformers. The technical scheme of the utility model is as follows: each phase winding, from inside to outside, sequentially comprises a transformer core (18), a low-voltage winding (19), a high-voltage winding with a roughly-tuned voltage-regulating wire cake, and a multistage finely-tuned voltage-regulating winding; and the low-voltage winding is axially led out, the high-voltage winding with a roughly-tuned voltage-regulating wire cake is led out by using same six outlets of which the upper and lower parts are parallelly connected, and the multistage finely-tuned voltage-regulating winding is led out by using same multi-tapping outlets of which the upper and lower parts are parallelly connected. According to the utility model, the roughly/finely-tuned voltage-regulating change of the on-load voltage-regulating power transformer is realized through the high-voltage winding with a roughly-tuned voltage-regulating wire cake, the finely-tuned voltage-regulating winding (wire cake) and a roughly/finely-tuned on-load voltage-regulating tapping switch, so that a situation that the load losses at the maximum tapping, rated tapping and minimum tapping positions of the transformer are basically equal is realized, and the number of radiators of the transformer is reduced, thereby reducing the self cost of the transformer, and lowering the operating cost of the transformer.
Description
Technical field
The utility model relates to a kind of high pressure raw fine tuning loaded voltage-regulating electric transformer, belongs to transformer technology field.
Background technology
Along with the development of power technology and improving constantly power quality, loaded voltage-regulating electric transformer can bringing onto load pressure regulation with it advantage progressively replace non-excitation pressure adjustment power transformer, and the loaded voltage-regulating electric transformer of background technology generally all adopts the load tapchanging mode of positive and negative tune, the drawback of this voltage regulating mode is at transformer during in minimum voltage tap position, its electric current is transformer maximum operating currenbt, now the resistance loss of transformer comprises resistance loss two parts of transformer main coil and voltage regulation coil, thereby cause the more specified tap position of its load loss of transformer minimum voltage tap position to increase considerably.Therefore, in order to solve the heat dissipation problem of transformer, and increase radiator, thereby increased transformer cost.
Utility model content
The purpose of this utility model is to provide a kind of high pressure raw fine tuning loaded voltage-regulating electric transformer, realize thickness and adjust on-load voltage regulation, make its its load loss of each position in the maximum tap of transformer, specified tap and minimum tap substantially suitable, reduced the quantity of transformer external heat sink, reduce manufacturing cost and the operating cost of transformer, solve the problems referred to above that background technology exists.
The technical solution of the utility model is: a kind of high pressure raw fine tuning loaded voltage-regulating electric transformer, comprise transformer core, low pressure winding, the high pressure winding with coarse adjustment line pressure regulator cake, multistage fine tuning pressure regulation winding and thickness and adjust on-load tap changer, winding arrangement mode is: every phase winding is followed successively by transformer core, low pressure winding, the high pressure winding with coarse adjustment line pressure regulator cake, multistage fine tuning pressure regulation winding from inside to outside; Low pressure axis of winding is drawn, and with the high pressure winding of coarse adjustment line pressure regulator cake, is that identical two parts are up and down in parallel, lifts one's head for six and draws, and multistage fine tuning pressure regulation winding is that identical two parts are up and down in parallel, and many taps are lifted one's head and drawn; High pressure winding with coarse adjustment line pressure regulator cake adjusts on-load tap changer to be connected with thickness respectively with multistage fine tuning pressure regulation winding.
The utility model is also provided with middle pressure winding, if two winding transformer does not have middle pressure winding; Middle pressure winding is arranged between low pressure winding and the high pressure winding with coarse adjustment line pressure regulator cake.
High voltage winding component with coarse adjustment line pressure regulator cake is identical two parts, with the high pressure winding top of coarse adjustment line pressure regulator cake, divides and divides with the high pressure winding bottom of coarse adjustment line pressure regulator cake; Multistage fine tuning pressure regulation winding is divided into identical two parts, part under part and multistage fine tuning pressure regulation winding on multistage fine tuning pressure regulation winding; With the high pressure winding top of coarse adjustment line pressure regulator cake, divide and divide and adopt after head end parallel connection with the high pressure winding bottom of coarse adjustment line pressure regulator cake, A, B, C that three radial leading-out ends in middle part are connected to three-phase transformer go up mutually, the described high pressure winding with coarse adjustment line pressure regulator cake, its coarse adjustment line pressure regulator cake end is lifted one's head after two-way parallel connection, is connected to thickness and adjusts on the positive terminal of on-load tap changer; On multistage fine tuning pressure regulation winding, under part and multistage fine tuning pressure regulation winding, the many taps after the parallel connection of part two-way are lifted one's head and by lead-in wire, are connected on each tapping point of thickness tune on-load tap changer respectively.
Good effect of the present utility model: the utility model adjusts on-load tap changer to realize to loaded voltage-regulating electric transformer the pressure regulation variation that thickness is adjusted by the high pressure winding with coarse adjustment line pressure regulator cake, fine tuning pressure regulation winding (line cake) and thickness, thereby realize at its load loss of each position of the maximum tap of transformer, specified tap and minimum tap substantially suitable, reduce the quantity of transformer radiator, both reduce the cost of transformer self, reduced again the operating cost of transformer.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment mono-low pressure winding, the high pressure winding with coarse adjustment line pressure regulator cake, multistage fine tuning voltage-regulating winding structure schematic diagram;
Fig. 2 is the utility model embodiment bis-low pressure windings, middle pressure winding, the high pressure winding with coarse adjustment line pressure regulator cake, multistage fine tuning voltage-regulating winding structure schematic diagram;
Fig. 3 is the connection schematic diagram that the high pressure winding of the utility model band coarse adjustment line pressure regulator cake, multistage fine tuning pressure regulation winding and thickness are adjusted on-load tap changer;
In figure: tap position 1,2,3,4,5,6,7,8,9; Transformer core 18; Low pressure winding 19; Middle pressure winding 20; High pressure winding top with coarse adjustment line pressure regulator cake divides 21; Part 22 on multistage fine tuning pressure regulation winding; Part 23 under multistage fine tuning pressure regulation winding; High pressure winding bottom with coarse adjustment line pressure regulator cake divides 24; The radial leading-out end 25 in middle part; Thickness is adjusted on-load tap changer 26.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described further.
High voltage winding component with coarse adjustment line pressure regulator cake is identical two parts, with the high pressure winding top of coarse adjustment line pressure regulator cake, divides 21 and divide 24 with the high pressure winding bottom of coarse adjustment line pressure regulator cake; Multistage fine tuning pressure regulation winding is divided into identical two parts, part 23 under part 22 and multistage fine tuning pressure regulation winding on multistage fine tuning pressure regulation winding; With the high pressure winding top of coarse adjustment line pressure regulator cake, divide 21 and divide after 24 employing head end parallel connections with the high pressure winding bottom of coarse adjustment line pressure regulator cake, A, B, C that three radial leading-out ends 25 in middle part are connected to three-phase transformer go up mutually, the described high pressure winding with coarse adjustment line pressure regulator cake, its coarse adjustment line pressure regulator cake end is lifted one's head after two-way parallel connection, is connected to thickness and adjusts on the positive terminal of on-load tap changer; On multistage fine tuning pressure regulation winding, under part 22 and multistage fine tuning pressure regulation winding, the many taps after part 23 two-way parallel connections are lifted one's head respectively and by lead-in wire, to be connected to thickness and to adjust on each tapping point of on-load tap changer.
Embodiment bis-, with reference to accompanying drawing 2, are provided with middle pressure winding 20, and middle pressure winding is arranged between low pressure winding and the high pressure winding with coarse adjustment line pressure regulator cake.Other is identical with embodiment mono-.
The positive and negative tune voltage regulating mode of the utility model and background technology difference is: under transformer minus tapping state, transformer is by accounting for the 90% high pressure winding wire cake with coarse adjustment line pressure regulator cake and the multistage fine tuning pressure regulation of transformer winding (line cake) work that accounts for 10% rated voltage, rather than the transformer high-voltage winding of 100% rated voltage of positive and negative tune mode and the transformer fine tuning pressure regulation winding that the accounts for 10% rated voltage work of playing a reversed role, under minimum tap state, adopting thickness to adjust mode Transformer Winding working method is to account for the 90% high pressure winding wire cake with coarse adjustment line pressure regulator cake in work, and the transformer high-voltage winding that positive and negative tune mode is 100% rated voltage is worked with the transformer fine tuning pressure regulation winding that accounts for 10% rated voltage simultaneously, be equivalent to the corresponding number of turn of 110% rated voltage in operation, both contrasts, thickness is adjusted than the few 110%-90%=20% of positive and negative tune mode winding working turns, therefore its minimum tapping loss thickness is adjusted and is reduced 20% than positive and negative tune mode simultaneously, therefore, thickness adjusts the transformer of mode to reduce loss, reduced the quantity of radiator, thereby not only reduced the cost of transformer self, also reduced the operating cost of transformer.
Claims (3)
1. a high pressure raw fine tuning loaded voltage-regulating electric transformer, it is characterized in that: comprise transformer core (18), low pressure winding (19), the high pressure winding with coarse adjustment line pressure regulator cake, multistage fine tuning pressure regulation winding and thickness and adjust on-load tap changer (26), winding arrangement mode is: every phase winding is followed successively by transformer core, low pressure winding, the high pressure winding with coarse adjustment line pressure regulator cake, multistage fine tuning pressure regulation winding from inside to outside; Low pressure axis of winding is drawn, and with the high pressure winding of coarse adjustment line pressure regulator cake, is that identical two parts are up and down in parallel, lifts one's head for six and draws, and multistage fine tuning pressure regulation winding is that identical two parts are up and down in parallel, and many taps are lifted one's head and drawn; High pressure winding with coarse adjustment line pressure regulator cake adjusts on-load tap changer to be connected with thickness respectively with multistage fine tuning pressure regulation winding.
2. a kind of high pressure raw fine tuning loaded voltage-regulating electric transformer according to claim 1, is characterized in that: be also provided with middle pressure winding (20), middle pressure winding is arranged between low pressure winding and the high pressure winding with coarse adjustment line pressure regulator cake.
3. a kind of high pressure raw fine tuning loaded voltage-regulating electric transformer according to claim 1 and 2, it is characterized in that: the high voltage winding component with coarse adjustment line pressure regulator cake is identical two parts, with the high pressure winding top of coarse adjustment line pressure regulator cake, divide (21) and divide (24) with the high pressure winding bottom of coarse adjustment line pressure regulator cake; Multistage fine tuning pressure regulation winding is divided into identical two parts, part (23) under part (22) and multistage fine tuning pressure regulation winding on multistage fine tuning pressure regulation winding; With the high pressure winding top of coarse adjustment line pressure regulator cake, divide (21) and divide (24) to adopt after head end parallel connection with the high pressure winding bottom of coarse adjustment line pressure regulator cake, A, B, C that three radial leading-out ends in middle part (25) are connected to three-phase transformer go up mutually, the described high pressure winding with coarse adjustment line pressure regulator cake, its coarse adjustment line pressure regulator cake end is lifted one's head after two-way parallel connection, is connected to thickness and adjusts on the positive terminal of on-load tap changer; On multistage fine tuning pressure regulation winding, under part (22) and multistage fine tuning pressure regulation winding, the many taps after part (23) two-way parallel connection are lifted one's head and by lead-in wire, are connected on each tapping point of thickness tune on-load tap changer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585413.1U CN203456262U (en) | 2013-09-23 | 2013-09-23 | High-pressure roughly/finely-tuned on-load voltage-regulating power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585413.1U CN203456262U (en) | 2013-09-23 | 2013-09-23 | High-pressure roughly/finely-tuned on-load voltage-regulating power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203456262U true CN203456262U (en) | 2014-02-26 |
Family
ID=50136121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320585413.1U Expired - Fee Related CN203456262U (en) | 2013-09-23 | 2013-09-23 | High-pressure roughly/finely-tuned on-load voltage-regulating power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203456262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113421753A (en) * | 2021-06-30 | 2021-09-21 | 保定天威集团特变电气有限公司 | Transformer convenient to promote single capacity |
-
2013
- 2013-09-23 CN CN201320585413.1U patent/CN203456262U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113421753A (en) * | 2021-06-30 | 2021-09-21 | 保定天威集团特变电气有限公司 | Transformer convenient to promote single capacity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102446622A (en) | Loaded voltage-regulating electric transformer | |
| CN103515071B (en) | A kind of high pressure raw fine regulation on-load voltage regulation | |
| CN101651030A (en) | Autotransformer with low-voltage compensation | |
| CN103632820B (en) | On-load adjustable capacity transformer low-voltage outgoing line structure | |
| CN201698881U (en) | On-load voltage regulating structure of 110kV power transformer | |
| CN105336481A (en) | 36-level high-precision capacitance and voltage adjusting transformer for distributing line | |
| CN201508760U (en) | On-load tap changer of high voltage D connection | |
| CN102568788B (en) | Single-body transformer | |
| CN103606445A (en) | Method for effectively reducing current passing through on-load tap-changer of transformers | |
| CN203456262U (en) | High-pressure roughly/finely-tuned on-load voltage-regulating power transformer | |
| CN102647091B (en) | Voltage stabilizing device for low voltage side of alternating-current power transmission and transformation and voltage stabilizing control method thereof | |
| CN202434321U (en) | On-load voltage regulating power transformer | |
| CN204614642U (en) | A kind of novel shunting dry-type transformer | |
| CN203415390U (en) | Voltage-regulating transformer for realizing high-insulation and large-current on-load voltage regulation | |
| CN202602541U (en) | Power transmission energy-saving voltage regulation device | |
| CN103187145A (en) | Crossed iron core type controlled reactor | |
| CN104953909A (en) | Medium voltage regulation method of power autotransformer and power autotransformer | |
| CN205122371U (en) | 36 level high accuracy distribution lines transfers and holds powerstat | |
| CN102647092A (en) | Voltage regulating device for low voltage side of alternating-current power transmission and transformation | |
| CN210200527U (en) | On-load tap changing transformer | |
| CN208986612U (en) | A kind of three-phase alternating current automatic pressure regulating device | |
| CN202422974U (en) | On-load voltage regulation transformer | |
| CN202586763U (en) | New type dual-power on-load voltage regulating and rectifier transformer | |
| CN204992589U (en) | Three -phase AC intelligent control circuit | |
| CN201805356U (en) | Voltage regulation type rectifier transformer |
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: 20140226 Termination date: 20160923 |