CN104078218A - Transformer test tapping method - Google Patents
Transformer test tapping method Download PDFInfo
- Publication number
- CN104078218A CN104078218A CN201410332691.5A CN201410332691A CN104078218A CN 104078218 A CN104078218 A CN 104078218A CN 201410332691 A CN201410332691 A CN 201410332691A CN 104078218 A CN104078218 A CN 104078218A
- Authority
- CN
- China
- Prior art keywords
- test
- lead
- transformer
- tapping
- sleeve pipe
- 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.)
- Granted
Links
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to the technical field of transformers, in particular to a transformer test tapping method. According to the transformer test tapping method, two tapping leads in voltage-regulating tapping leads are connected with a T-shaped tube and a lead in a pressed mode. A test output sleeve T and a test output sleeve T0 arranged on a transformer oil tank are further included. The lead connected with the two tapping leads in a pressed mode is connected with the test output sleeve T and the test output sleeve T0. On the basis of normal design and manufacturing of a transformer, a test is drafted, and tapping gears are selected through calculation of tapping voltage; on the basis of normal connection of the tapping leads, the tapping leads of the selected gear are connected with the T-shaped tube and the lead in a pressed mode, and accordingly a branch is additionally arranged on the original base. The test sleeves are additionally arranged on the oil tank, the additionally arranged leads are connected with the test sleeves, and an additional test tapping is arranged.
Description
Technical field
The present invention relates to transformer technology field, especially a kind of transformer test taps approach.
Background technology
In electric power system, we use various types of transformers to complete the transmission of electric energy between from power plant to user, and electric energy is in transmitting procedure, has line loss, causes line drop.Certain voltage can only be transmitted certain distance.For improving transmission distance, increase the conveying capacity of electric energy, need to improve transmission voltage.We have greatly developed high pressure, extra-high voltage transformer for this reason.On this basis, part does not need the transformer of direct on-load, for saving cost, has reduced the output of voltage type, can cause the each side voltage of transformer all higher, generally 110kV and more than.Be limited to the voltage of experiment power supply, transformer cannot directly be tested.Common way is to set up one or more intermediate transformer, by intermediate transformer by experiment power supply boost in voltage to the required voltage of transformer test, this way is suitable for shop test, but field test exist very large problem, searching intermediate transformer is wasted time and energy, and cost is higher.Another kind of traditional method is to increase testing coil, is equivalent to increase a kind of Voltage-output, and this way is because increased coil, the material cost of transformer will be increased greatly, because testing coil can take up space, make actuating coil toward external expansion simultaneously, greatly increased the loss of transformer.
To sum up: be 110kV and above transformer for low pressure, no matter be by intermediate transformer or set up voltage regulation coil and test, all can increase cost, cause the waste of material.
Summary of the invention
The technical problem to be solved in the present invention is: based on the problems referred to above, the invention provides a kind of transformer test taps approach, it does not need equipment investment, makes simple, with low cost, safe and reliable.
The technical solution adopted for the present invention to solve the technical problems is: a kind of transformer test taps approach is provided,
Comprise inner lead structure, described inner lead structure comprises the output of high pressure head end, the output of high pressure end, the output of low pressure head end, the output of low pressure end and pressure regulation tap lead, described high pressure head end output connects lead-out terminal, described high pressure end output connects pressure regulation tap lead, has crimping three-way pipe crimping lead-in wire on two grades of tap leads in described pressure regulation tap lead;
Also comprise the test output sleeve pipe T and the test output sleeve pipe T0 that are arranged on oil tank of transformer,
On above-mentioned two grades of tap leads, the lead-in wire of crimping is connected to described test output sleeve pipe T and test output sleeve pipe T0.
Further, described pressure regulation tap lead has 11 grades, is respectively equipped with 1 to 11 numbering, wherein numbers crimping three-way pipe crimping lead-in wire on 1 and 5 tap lead.Wherein number 1 and 5 tap lead selected by calculating, as the shunting tap of transformer.
Further, described test output sleeve pipe T and test output sleeve pipe T0 are provided with metal cap outward.For preventing that sleeve pipe is struck by lightning or is short-circuited, adopt metal cap to play the effect of shielding.
The invention has the beneficial effects as follows: the normal design, the making that the present invention is based on transformer, draft test, the voltage of tap is selected to shunting tap gear by calculating, on the normal basis connecting of tap lead, crimping three-way pipe crimping lead-in wire on the tap lead of selected gear, be equivalent to increases a shunt on former basis, and on fuel tank, set up test casing increase lead-in wire be connected to test casing, completed the test tap of setting up.
Brief description of the drawings
Below in conjunction with accompanying drawing embodiment, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is by the structural representation after detailedization of pressure regulation tap lead in Fig. 1.
In figure: 1. high pressure head end output, 2. high pressure end output, 3. low pressure head end output, 4. low pressure end output, 5. pressure regulation tap lead, 6. lead-out terminal, 7. three-way pipe, 8. lead-in wire, 9. test output sleeve pipe T, 10. test output sleeve pipe T0.
Embodiment
The invention will be further described in conjunction with specific embodiments now, and following examples are intended to illustrate the present invention instead of limitation of the invention further.
As shown in Fig. 1～2, a kind of transformer test taps approach, comprise inner lead structure, inner lead structure comprises high pressure head end output 1, high pressure end output 2, low pressure head end output 3, the output 4 of low pressure end and pressure regulation tap lead 5, high pressure head end output 1 connects lead-out terminal 6, high pressure end output 2 connects pressure regulation tap lead 5, has crimping three-way pipe 7 crimping lead-in wire 8 on two grades of tap leads in pressure regulation tap lead 5; Also comprise the test output sleeve pipe T9 and the test output sleeve pipe T010 that are arranged on oil tank of transformer, on above-mentioned two grades of tap leads, the lead-in wire 8 of crimping is connected to test output sleeve pipe T9 and test output sleeve pipe T010, and test output sleeve pipe T9 and test output sleeve pipe T010 are provided with metal cap outward.
Further, pressure regulation tap lead 5 has 11 grades, is respectively equipped with 1 to 11 numbering, wherein numbers crimping three-way pipe 7 crimping lead-in wire 8 on 1 and 5 tap lead.
220 ± 10 × 1.0%/110kV transformer is example, on the basis designing and producing routinely at transformer, on oil tank of transformer, increase test output sleeve pipe T9 and test output sleeve pipe T010, wiring during for transformer test, for preventing that test casing is struck by lightning or is short-circuited, adopt metal cap to be shielded.In the time that inner lead designs and produces, by calculating the tap lead of selected numbering 1 and 5 as the shunting tap of transformer, three-way pipe 7 of each crimping on the tap lead of numbering 1 and 5, make transformer regulating outlet divide two-way, one road connecting valve, another pass is to test output sleeve pipe T9 and test output sleeve pipe T010.In the time that transformer carries out induced over voltage withstand test, directly on test output sleeve pipe T9 and test output sleeve pipe T010, pressurize, make high pressure and low pressure reach the test voltage needing by induction.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (3)
1. a transformer test taps approach, is characterized in that:
Comprise inner lead structure, described inner lead structure comprises the output of high pressure head end, the output of high pressure end, the output of low pressure head end, the output of low pressure end and pressure regulation tap lead, described high pressure head end output connects lead-out terminal, described high pressure end output connects pressure regulation tap lead, has crimping three-way pipe crimping lead-in wire on two grades of tap leads in described pressure regulation tap lead;
Also comprise the test output sleeve pipe T and the test output sleeve pipe T0 that are arranged on oil tank of transformer,
On above-mentioned two grades of tap leads, the lead-in wire of crimping is connected to described test output sleeve pipe T and test output sleeve pipe T0.
2. a kind of transformer test taps approach according to claim 1, is characterized in that: described pressure regulation tap lead has 11 grades, is respectively equipped with 1 to 11 numbering, wherein numbers crimping three-way pipe crimping lead-in wire on 1 and 5 tap lead.
3. a kind of transformer test taps approach according to claim 1, is characterized in that: described test output sleeve pipe T and test output sleeve pipe T0 are provided with metal cap outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332691.5A CN104078218B (en) | 2014-07-11 | 2014-07-11 | Transformer test tapping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332691.5A CN104078218B (en) | 2014-07-11 | 2014-07-11 | Transformer test tapping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104078218A true CN104078218A (en) | 2014-10-01 |
| CN104078218B CN104078218B (en) | 2017-05-03 |
Family
ID=51599420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332691.5A Active CN104078218B (en) | 2014-07-11 | 2014-07-11 | Transformer test tapping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104078218B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325209A (en) * | 2020-12-02 | 2021-08-31 | 吴江变压器有限公司 | Design method of temporary sleeve outgoing line for transformer test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0786057A (en) * | 1993-09-13 | 1995-03-31 | Toshiba Corp | Transformer with tap winding |
| CN101510462A (en) * | 2008-02-13 | 2009-08-19 | 刘华友 | Superhigh tension power transformer |
| CN101794321A (en) * | 2009-06-25 | 2010-08-04 | 华北电力大学 | Single-phase three-winding autotransformer model taking account of nonlinear influences of excitation impedance |
| CN202939271U (en) * | 2012-12-04 | 2013-05-15 | 陕西省电力公司榆林市供电公司 | Voltage transformer induction withstand voltage experiment connecting circuit based on third harmonic generator |
| CN103500634A (en) * | 2013-10-28 | 2014-01-08 | 三变科技股份有限公司 | 220KV on-load voltage regulation single-phase testing transformer |
-
2014
- 2014-07-11 CN CN201410332691.5A patent/CN104078218B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0786057A (en) * | 1993-09-13 | 1995-03-31 | Toshiba Corp | Transformer with tap winding |
| CN101510462A (en) * | 2008-02-13 | 2009-08-19 | 刘华友 | Superhigh tension power transformer |
| CN101794321A (en) * | 2009-06-25 | 2010-08-04 | 华北电力大学 | Single-phase three-winding autotransformer model taking account of nonlinear influences of excitation impedance |
| CN202939271U (en) * | 2012-12-04 | 2013-05-15 | 陕西省电力公司榆林市供电公司 | Voltage transformer induction withstand voltage experiment connecting circuit based on third harmonic generator |
| CN103500634A (en) * | 2013-10-28 | 2014-01-08 | 三变科技股份有限公司 | 220KV on-load voltage regulation single-phase testing transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325209A (en) * | 2020-12-02 | 2021-08-31 | 吴江变压器有限公司 | Design method of temporary sleeve outgoing line for transformer test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104078218B (en) | 2017-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204269765U (en) | A kind of transformer for power frequency withstand test and test unit | |
| CN202076111U (en) | Single-phase traction transformer and traction power supply system for electric railway | |
| CN103680883A (en) | 500kV-level split on-load voltage regulation power transformer | |
| CN103730240A (en) | Variable-flux voltage regulating auto transformer for maintaining constant low voltage | |
| CN104078218A (en) | Transformer test tapping method | |
| CN206726938U (en) | Power transformer | |
| CN204011012U (en) | A kind of test tapped transformer | |
| CN104167715A (en) | YNd5 transformer longitudinal differential protection current phase compensation method | |
| CN204614642U (en) | A kind of novel shunting dry-type transformer | |
| CN209374260U (en) | A kind of charger control transformer that can meet different electrical power input voltage simultaneously | |
| CN104184121A (en) | YNd9 transformer longitudinal differential protection current phase compensation method | |
| CN102751079A (en) | Combined transformer for wind power generation | |
| CN101964246A (en) | Traction transformer series-connected in one box by two low voltage winding layers for AT (Auto-Transformer) power supply | |
| CN112133548B (en) | High-current dry type transformer with tapping voltage regulation function and voltage regulation method | |
| CN102420043A (en) | Single-phase high-impedance auto-transformer | |
| CN203733591U (en) | Novel low-pressure foil coil winding oil-immersed transformer | |
| CN203180458U (en) | Self-powered ice-melting electric reactor | |
| CN203444935U (en) | Direct distribution type distribution transformer | |
| CN204360910U (en) | A kind of instrument transformer | |
| CN206364511U (en) | The special voltage regulation of voltage regulation transformer in tunnel | |
| CN205039056U (en) | Improved generation metallic glass transformer | |
| CN206363858U (en) | Three-phase three winding is air-cooled load auto-transformer | |
| CN204242780U (en) | Multi winding transformer | |
| CN206059148U (en) | A kind of inflated type high pressure current lifting device | |
| CN204927007U (en) | Toroidal transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |