CN107134342A - A kind of 110kV two-winding transformers pin configuration - Google Patents
A kind of 110kV two-winding transformers pin configuration Download PDFInfo
- Publication number
- CN107134342A CN107134342A CN201710320255.XA CN201710320255A CN107134342A CN 107134342 A CN107134342 A CN 107134342A CN 201710320255 A CN201710320255 A CN 201710320255A CN 107134342 A CN107134342 A CN 107134342A
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- phases
- pressure
- high pressure
- low
- pressure side
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Abstract
The present invention relates to 110kV two-winding transformer pin configurations, high-side lead structure is：High pressure phase line A, B, C and bushing are connected, the alternate space of alternate space and high-pressure side B phases and C phases leads to high-pressure side lower clamping piece unshakable in one's determination with B phases by high-pressure side A phases for high pressure B phases and C phases tap lead, and high pressure B phases, C phases tap lead connect line terminals along high pressure B phases and C of the high-pressure side lower clamping piece unshakable in one's determination after horizontally disposed corresponding to connection loaded switch；Low-pressure side pin configuration is：Low pressure phase line a, b, c, x, y, z are fixed by clamping wooden piece and are connected with low-tension bushing；High pressure A phase tap leads are arranged in low-pressure side, and the high pressure A connected by clamping wooden piece corresponding to loaded switch connects line terminals.The present invention can improve the space availability ratio of oil tank of transformer, reduction steel and transformer oil consumption, reduce cost, improve economic value；Lead wiring is more attractive neat, with good mechanical strength and reliable electric performance.
Description
Technical field
The invention belongs to transformer lead structure technical field, and in particular to a kind of lead of 110kV two-winding transformers
Structure.
Background technology
As Transformer product consumption increases increasingly, market competition is increasingly fierce, and each manufacturer is all exerting
Power improves the performance of product, reduces manufacturing cost, to obtain bigger profit margin.The power transformer body of conventional method design
Product is big, cost is high, waste of raw materials, has been not suitable with current development trend, and power transformer miniaturization is imperative.
Set it is well known that the miniaturization production of power transformer product is main in transformer master, longitudinal insulating structure by restricting
Meter.And rational insulating structure design will not only ensure the electric property and mechanical strength of product, at the same need to consider through
Ji factor.Therefore, the key technology of power transformer product miniaturization production is the arrangement of high and low pressure pin configuration, passes through
The distribution situation of transformer lead electric field around lead under the effect of various voltages is analyzed, seeks optimal pin configuration pattern.
At present, domestic and international manufacturing firm is for the pin configuration of 110 kilovolts of two-winding transformer products, and high-pressure side is generally adopted
With three-phase tap lead parallel to three-phase coil horizontal cable run mode, pin configuration is as shown in Figure 1.Though this structure has been obtained extensively
Using, technology maturation, still, in order to ensure lead and coil and the insulation distance of fuel tank, larger fuel tank volume can be taken empty
Between, a large amount of wastes of transformer oil and steel are caused, the miniaturization production design of power transformer product on the one hand can not be met
Demand, on the other hand can not reduce the production cost of transformer.
The content of the invention
To adapt to the demand of power transformer miniaturization production, present invention aims at design a kind of new 110kV double wraps
Group transformer lead structure, the characteristics of being arranged near line circle high pressure A phases for loaded switch, by the three-phase tap lead of high-pressure side
B, C two-phase tap lead be arranged in high-pressure side, another high pressure A phases be arranged in low-pressure side, make full use of power transformer product three
The alternate space of phase coil, drastically reduce the area existing pin configuration to ensure tap lead and coil and the insulation distance of fuel tank
And increased fuel tank volumetric spaces.The technical solution used in the present invention is as follows：
A kind of 110kV two-winding transformers pin configuration, including high-side lead structure and low-pressure side pin configuration, it is described
High-side lead structure be：High pressure phase line A, B, C and bushing are connected, and high pressure B phases tap lead is tapped with high pressure C phases to be drawn
Alternate space between alternate space and high-pressure side the B phases and C phases of line respectively between high-pressure side A phases and B phases leads to high pressure
Side iron core lower clamping piece, high pressure B phases, high pressure C phases tap lead connect loaded switch afterwards along high-pressure side lower clamping piece unshakable in one's determination is horizontally disposed
Corresponding high pressure B phases and the binding post of high pressure C phases；
Described low-pressure side pin configuration is：Low pressure phase line a, b, c, x, y, z are fixed by clamping wooden piece, finally and low pressure
Sleeve pipe connection；High pressure A phase tap leads are arranged in low-pressure side, by clamping the high pressure A phases corresponding to wooden piece connection loaded switch
Binding post.
Preferably, high pressure B phases tap lead and high pressure C phase tap leads side-by-side parallel arrangement.
Preferably, high pressure B phases tap lead and high pressure C phases tap lead pass through positioned at the part of high-pressure side lower clamping piece unshakable in one's determination
Clamp wooden piece and carry out the symmetrical level clamping in both sides.
Preferably, clamping wooden piece is long used in the low voltage three-phase of low-pressure side pin configuration first head a, b, c and low pressure tail head x
Degree shorten to 300mm.
High voltage side of transformer pin configuration after improvement, changes existing product and three-phase tap wire is uniformly placed in into high pressure
Side, and parallel to the mode that previous level is connected up, the alternate space of power transformer product three-phase coil can be made full use of, significantly
Existing pin configuration is reduced to ensure the insulation distance of tap lead and coil and fuel tank and increased fuel tank volumetric spaces, oil
The reduction of casing product further reduces the consumption of transformer oil, integrally reduces the consumption of steel and transformer oil.
Step down side pin configuration after improvement, changes the wiring that existing product low-pressure side only arranges low-voltage lead
Mode, meanwhile, on the premise of insulation distance and reliability service is met, unified low-voltage lead clamping wooden piece specification reduces low pressure
Lead clamps the size of wooden piece.This pin configuration greatly reduces the device body width of transformer to size, reduces existing product to ensure
The insulation distance and assembly space of lead and fuel tank and increased fuel tank volumetric spaces, reduce the consumption of transformer oil, it is to avoid former
The waste of material.
Beneficial effects of the present invention：1) on the premise of transformer safety stable operation is met, this pin configuration is fully sharp
With the alternate space of Three-Phase Transformer coil and high-pressure side lower clamping piece space unshakable in one's determination, reduce existing product to ensure lead and each part
Insulation distance and increased fuel tank volumetric spaces, improve the space availability ratio of oil tank of transformer, reduction steel and transformer oil
Consumption, reduce cost, significantly improve the economic value of 110 kilovolts of two-winding transformers；2) this pin configuration makes lead cloth
Line is more attractive neat, and with good mechanical strength and reliable electric property.
Brief description of the drawings
Fig. 1 is the wire bond composition of existing 110 kilovolts of two-winding transformer leads；
Fig. 2 is the high voltage side of transformer pin configuration schematic diagram of the present invention；
Fig. 3 is the step down side pin configuration schematic diagram of the present invention.
In figure：1. high-voltage connection clamps wooden piece, 2. high pressure B phases tap lead, 3. high pressure C phases tap lead, and 4. low pressure is drawn
Wire clamp holds wooden piece, 5. high pressure A phases tap lead.
Embodiment
Below in conjunction with the accompanying drawings, embodiments of the present invention are illustrated.
As shown in Fig. 2 being high voltage side of transformer pin configuration schematic diagram.Wooden piece 1 is clamped by high-voltage connection and fixes high pressure B
Phase tap lead 2 and high pressure C phases tap lead 3.The alternate space of high-pressure side three-phase coil is made full use of, is pressed from both sides by high-voltage connection
Hold the fixation high pressure B phases of wooden piece 1 tap lead 2 and high pressure C phases tap lead 3 be connected along lower clamping piece horizontal wiring unshakable in one's determination with switch,
And two-phase tap lead side-by-side parallel wire laying mode is used, high pressure B phases tap lead and high pressure C phases tap lead are located at high-pressure side
The part of lower clamping piece unshakable in one's determination carries out the symmetrical level clamping in both sides by clamping wooden piece.
As shown in figure 3, being step down side pin configuration schematic diagram.High pressure A phase tap leads are arranged in low-pressure side company
The binding post for the high pressure A phases being connected to corresponding to load switch.Low pressure phase line a, b, c, x, y, z are fixed by clamping wooden piece, finally
It is connected with low-tension bushing；Low voltage three-phase first head a, b, c and low pressure tail head x are used to the clamping wooden piece of same size, and it is unified low
Voltage lead wires clamp the size of wooden piece 4, and on the premise of ensureing low-voltage lead with each part insulation distance, existing product low pressure is drawn
The length that wire clamp holds wooden piece 4 is adjusted to 300mm by 405mm；The length of low pressure tail head y, z clamping wooden piece is not adjusted.
Claims (4)
1. a kind of 110kV two-winding transformers pin configuration, it is characterised in that：Including high-side lead structure and low-pressure side lead
Structure, the high-side lead structure is：High pressure phase line A, B, C and bushing are connected, high pressure B phases tap lead and high pressure C
Draw in alternate space between alternate space and high-pressure side the B phases and C phases of phase tap lead respectively between high-pressure side A phases and B phases
Go out to high-pressure side lower clamping piece unshakable in one's determination, high pressure B phases, high pressure C phases tap lead are connected afterwards along high-pressure side lower clamping piece unshakable in one's determination is horizontally disposed
The binding post of high pressure B phases and high pressure C phases corresponding to loaded switch；
The low-pressure side pin configuration is：Low pressure phase line a, b, c, x, y, z are fixed by clamping wooden piece, are connected with low-tension bushing；
High pressure A phase tap leads are arranged in low-pressure side, and the terminals of the high pressure A phases corresponding to loaded switch are connected by clamping wooden piece
Son.
2. a kind of 110kV two-winding transformers pin configuration according to claim 1, it is characterised in that：The high pressure B phases
Tap lead and high pressure C phase tap leads side-by-side parallel arrangement.
3. a kind of 110kV two-winding transformers pin configuration according to claim 2, it is characterised in that：The high pressure B phases
The part that tap lead and high pressure C phases tap lead are located at high-pressure side lower clamping piece unshakable in one's determination carries out the symmetrical water in both sides by clamping wooden piece
Flat clamping.
4. a kind of 110kV two-winding transformers pin configuration according to claim any one of 1-3, it is characterised in that：Institute
Clamping wooden piece length used in low voltage three-phase first head a, b, c and low pressure tail head x of low-pressure side pin configuration is stated to shorten to
300mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320255.XA CN107134342A (en) | 2017-05-09 | 2017-05-09 | A kind of 110kV two-winding transformers pin configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320255.XA CN107134342A (en) | 2017-05-09 | 2017-05-09 | A kind of 110kV two-winding transformers pin configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107134342A true CN107134342A (en) | 2017-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710320255.XA Pending CN107134342A (en) | 2017-05-09 | 2017-05-09 | A kind of 110kV two-winding transformers pin configuration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111768961A (en) * | 2019-04-02 | 2020-10-13 | 特变电工沈阳变压器集团有限公司 | Method for integrally assembling disassembled transformer switch and voltage regulation |
| CN111816428A (en) * | 2020-06-19 | 2020-10-23 | 山东电力设备有限公司 | 220KV three-winding medium-voltage dual-voltage transformer lead structure |
| CN112992499A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Three-phase integrated autotransformer low-voltage copper pipe lead structure and method |
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| US20070132534A1 (en) * | 2005-12-08 | 2007-06-14 | Osbun Kevin P | Transformer and method of assembly |
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| CN203242471U (en) * | 2013-03-14 | 2013-10-16 | 广州智光电气股份有限公司 | Valve side winding wire outgoing structure of convertor transformer |
| CN203631278U (en) * | 2013-12-31 | 2014-06-04 | 卧龙电气集团股份有限公司 | Resin-insulated dry traction rectifying transformer with transverse and longitudinal air channels |
| CN104143419A (en) * | 2014-07-17 | 2014-11-12 | 中电电气(江苏)股份有限公司 | Six-split shift-phase rectifier transformer |
| CN204067007U (en) * | 2014-05-09 | 2014-12-31 | 宁波天安（集团）股份有限公司 | A kind of photovoltaic power generation transformer |
| CN104269257A (en) * | 2014-10-17 | 2015-01-07 | 盐城华盛变压器制造有限公司 | Dry type transformer tapping arrangement structure |
| CN204596606U (en) * | 2014-11-17 | 2015-08-26 | 平高集团有限公司 | Loaded capacity regulating voltage regulating transformer and coil module thereof |
| CN206907596U (en) * | 2017-05-09 | 2018-01-19 | 山东电力设备有限公司 | A kind of 110kV two-winding transformers pin configuration |
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2017
- 2017-05-09 CN CN201710320255.XA patent/CN107134342A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070132534A1 (en) * | 2005-12-08 | 2007-06-14 | Osbun Kevin P | Transformer and method of assembly |
| CN201444438U (en) * | 2009-05-22 | 2010-04-28 | 山东达驰电气有限公司 | Arrangement structure of high-voltage tapping lead wires of transformer |
| CN201549347U (en) * | 2009-09-21 | 2010-08-11 | 保定天威集团有限公司 | Interphase barrier structure of dry-type transformer |
| CN201829319U (en) * | 2010-09-15 | 2011-05-11 | 特变电工沈阳变压器集团有限公司 | Low-voltage wire lead and outlet structure for transformer |
| CN203103085U (en) * | 2013-02-26 | 2013-07-31 | 山东达驰电气有限公司 | Arrangement structure for transformer low voltage y connection lead |
| CN203242471U (en) * | 2013-03-14 | 2013-10-16 | 广州智光电气股份有限公司 | Valve side winding wire outgoing structure of convertor transformer |
| CN203631278U (en) * | 2013-12-31 | 2014-06-04 | 卧龙电气集团股份有限公司 | Resin-insulated dry traction rectifying transformer with transverse and longitudinal air channels |
| CN204067007U (en) * | 2014-05-09 | 2014-12-31 | 宁波天安（集团）股份有限公司 | A kind of photovoltaic power generation transformer |
| CN104143419A (en) * | 2014-07-17 | 2014-11-12 | 中电电气(江苏)股份有限公司 | Six-split shift-phase rectifier transformer |
| CN104269257A (en) * | 2014-10-17 | 2015-01-07 | 盐城华盛变压器制造有限公司 | Dry type transformer tapping arrangement structure |
| CN204596606U (en) * | 2014-11-17 | 2015-08-26 | 平高集团有限公司 | Loaded capacity regulating voltage regulating transformer and coil module thereof |
| CN206907596U (en) * | 2017-05-09 | 2018-01-19 | 山东电力设备有限公司 | A kind of 110kV two-winding transformers pin configuration |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111768961A (en) * | 2019-04-02 | 2020-10-13 | 特变电工沈阳变压器集团有限公司 | Method for integrally assembling disassembled transformer switch and voltage regulation |
| CN111816428A (en) * | 2020-06-19 | 2020-10-23 | 山东电力设备有限公司 | 220KV three-winding medium-voltage dual-voltage transformer lead structure |
| CN112992499A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Three-phase integrated autotransformer low-voltage copper pipe lead structure and method |
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Application publication date: 20170905 |