CN205229199U - General experimental binding post row of transformer - Google Patents
General experimental binding post row of transformer Download PDFInfo
- Publication number
- CN205229199U CN205229199U CN201521020940.3U CN201521020940U CN205229199U CN 205229199 U CN205229199 U CN 205229199U CN 201521020940 U CN201521020940 U CN 201521020940U CN 205229199 U CN205229199 U CN 205229199U
- Authority
- CN
- China
- Prior art keywords
- terminal
- voltage
- ground
- voltage terminal
- current
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 claims abstract description 61
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims description 12
- 239000012212 insulator Substances 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- 239000004020 conductor Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009666 routine test Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a can effectually improve work efficiency that general experimental binding post row of transformer can once only draw forth all experimental lines from the transformer, realizes that testing personnel can accomplish all pilot projects on ground. The utility model discloses binding post arranges including three low -voltage terminal groups of group, low -voltage terminal group includes a voltage terminal, the 2nd voltage terminal, a current terminal and the 2nd current terminal, a electrical connection wire for the voltage terminal to the 2nd voltage terminal, and a electrical connection wire for the current terminal to the 2nd current terminal is still including the short circuit piece that is used for the 2nd voltage terminal of short circuit and the 2nd current terminal, still include four group's high -pressure side subunits, high -pressure side subunit and low -voltage terminal group structure is the same, still includes a ground terminal and the 2nd ground terminal, and a ground terminal is electrically connected to the 2nd ground terminal, still include ground copper bars, ground copper bars is last to be provided with four high -pressure ground terminal.
Description
Technical field
The utility model relates to a kind of connecting terminal block, particularly relates to a kind of transformer universal test connecting terminal block.
Background technology
The routine test of transformer has the pilot projects such as winding D.C. resistance, insulation resistance, dielectric loss, electric capacity, low-voltage short-circuit impedance and no-load voltage ratio, the test apparatus that each pilot project has it corresponding and test connection, and each pilot project all needs to draw test connection from the pile crown on the pile crown high voltage side of transformer sleeve pipe, medium voltage side sleeve pipe or the pile crown on low-pressure side sleeve pipe, and then be connected to the test apparatus corresponding to projects.Therefore, completing all routine test projects of transformer needs repeatedly to change test apparatus and wiring, and each test connection of changing all needs to climb transformer, there is the defects such as labour intensity is large, inefficiency.
Utility model content
Technical problem to be solved in the utility model has been that all routine test projects of transformer need repeatedly to change test apparatus and wiring, and each test connection of changing all needs to climb transformer, there is the defects such as labour intensity is large, inefficiency.For above technical matters, provide that a kind of energy is disposable draws all test lines from transformer, realize testing crew can complete all pilot projects transformer universal test connecting terminal block on ground.
The technical solution adopted in the utility model is: a kind of transformer universal test connecting terminal block, comprises three groups of low pressure end subgroups; Described low pressure end subgroup comprises the first voltage terminal 1, second voltage terminal 3, first current terminal 2 and the second current terminal 4, first voltage terminal 1 wire is electrically connected to the second voltage terminal 3, first current terminal 2 wire is electrically connected to the second current terminal 4, also comprises the short-circuit piece 9 for short circuit second voltage terminal 3 and the second current terminal 4; Also comprise four groups of high-pressure side subgroups; Described high-pressure side subgroup is identical with low pressure end sub-group structure, also comprises the first ground terminal 5 and the second ground terminal 6, first ground terminal 5 wire is electrically connected to the second ground terminal 6; Also comprise grounding copper bar 10, grounding copper bar is provided with four high-voltage earthing terminals 7.
Such scheme is improved to described transformer universal test connecting terminal block further and also comprises shell 11; Described high-pressure side subgroup and low pressure end subgroup array from left to right and are arranged on the upper surface of shell 11, wherein the first voltage terminal 1, first current terminal 2 and the first ground terminal 5 arranged in parallel are in the side of upper surface of outer cover, and the second voltage terminal 3, second current terminal 4 and the second ground terminal 6 arranged in parallel are at the opposite side of upper surface of outer cover; Described short-circuit piece is fixed on shell 11 upper surface by insulation pivot link 8, between the second voltage terminal 3 and the second current terminal 4, and can short circuit second voltage terminal 3 and the second current terminal 4 after rotation.
Such scheme is improved to described transformer universal test connecting terminal block further and also comprises four groups of intermediate voltage terminal subgroups; The structure of described intermediate voltage terminal subgroup is identical with high-pressure side subgroup; Described grounding copper bar 10 is also provided with in four presses ground terminal 16.High-pressure side subgroup, intermediate voltage terminal subgroup, low pressure end subgroup array from left to right and are arranged on the upper surface of shell 11, wherein the first voltage terminal 1, first current terminal 2 and the first ground terminal 5 arranged in parallel are in the side of upper surface of outer cover, and the second voltage terminal 3, second current terminal 4 and the second ground terminal 6 arranged in parallel are at the opposite side of upper surface of outer cover; Described short-circuit piece is fixed on shell 11 upper surface by insulation pivot link 8, between the second voltage terminal 3 and the second current terminal 4, and can short circuit second voltage terminal 3 and the second current terminal 4 after rotation.
Such scheme is improved to further on all voltage terminals and current terminal and is all set with porcelain insulator 15 and wiring hold-down bolt 14.All ground terminals can adopt socket of pulling pin, and are convenient to change wiring.
Compared with prior art, the beneficial effects of the utility model are on the basis not changing original test apparatus, disposablely draw all tests from transformer and link to universal test connecting terminal block, this terminal block is placed in ground, be convenient to testing crew and can complete docking of terminal block and test apparatus on the ground according to pilot project demand, light replacing test connection, thus reach the object improving test efficiency, reduce ascend operation risk.
Accompanying drawing explanation
Fig. 1 transformer universal test connecting terminal block vertical view.
The stereographic map of Fig. 2 transformer universal test connecting terminal block.
The schematic diagram of Fig. 3 ground terminal.
The fundamental diagram of Fig. 4 copper short circuit sheet.
In figure: the first voltage terminal 1, first current terminal 2, second voltage terminal 3, second current terminal 4, first ground terminal 5, second ground terminal 6, high-voltage earthing terminal 7, insulation pivot link 8, short-circuit piece 9, grounding copper bar 10, shell 11, pin hole 12, turning axle 13, wiring hold-down bolt 14, porcelain insulator 15, middle pressure ground terminal 16.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Composition graphs 1 and Fig. 2 specifically describe the structure of connecting terminal block.
Connecting terminal block of the present utility model comprises three groups of low pressure end subgroups; Described low pressure end subgroup comprises the first voltage terminal 1, second voltage terminal 3, first current terminal 2 and the second current terminal 4, first voltage terminal 1 wire is electrically connected to the second voltage terminal 3, first current terminal 2 wire is electrically connected to the second current terminal 4, also comprises the short-circuit piece 9 for short circuit second voltage terminal 3 and the second current terminal 4; Also comprise four groups of high-pressure side subgroups; Described high-pressure side subgroup is identical with low pressure end sub-group structure, also comprises the first ground terminal 5 and the second ground terminal 6, first ground terminal 5 wire is electrically connected to the second ground terminal 6; Also comprise grounding copper bar 10, grounding copper bar 10 is provided with four high-voltage earthing terminals 7, for ground connection.Described high-pressure side subgroup and low pressure end subgroup array from left to right and are arranged on the upper surface of shell 11, wherein the first voltage terminal 1, first current terminal 2 and the first ground terminal 5 arranged in parallel are in the side of upper surface of outer cover, and the second voltage terminal 3, second current terminal 4 and the second ground terminal 6 arranged in parallel are at the opposite side of shell 11 upper surface; Described short-circuit piece 9 is fixed on shell 11 upper surface by insulation pivot link 8, between the second voltage terminal 3 and the second current terminal 4, and can short circuit second voltage terminal 3 and the second current terminal 4 after rotation.
As depicted in figs. 1 and 2, above-mentioned transformer universal test connecting terminal block also comprises four groups of intermediate voltage terminal subgroups; The structure of described intermediate voltage terminal subgroup is identical with high-pressure side subgroup; Described grounding copper bar 10 is also provided with in four presses ground terminal 16.High-pressure side subgroup, intermediate voltage terminal subgroup and low pressure end subgroup array from left to right and are arranged on the upper surface of shell, wherein the first voltage terminal 1, first current terminal 2 and the first ground terminal 5 arranged in parallel are in the side of shell 11 upper surface, and the second voltage terminal 3, second current terminal 4 and the second ground terminal 6 arranged in parallel are at the opposite side of shell 11 upper surface; Described short-circuit piece is fixed on shell 11 upper surface by insulation pivot link, between the second voltage terminal 3 and the second current terminal 4, and can short circuit second voltage terminal 3 and the second current terminal 4 after rotation.
All voltage terminals and current terminal are all set with porcelain insulator 15 and wiring hold-down bolt 14, conveniently crimp test lead; Described porcelain insulator 15 requires dielectric strength and the creepage distance that at least can meet 10kV voltage.As shown in Figure 3, all ground terminals can adopt socket of pulling pin, and this socket of pulling pin is convenient to change wiring with pin hole 12.First ground terminal 5 and the second ground terminal 6 are for bushing shell for transformer dielectric loss and electric capacity test.All ground terminals and ground connection flat copper 10 have good electrical connection, for ensureing end shield lead-in wire reliable ground.
Described wire all adopts the solid copper conductor of Φ 6mm, and be " U " type structure, the radius-of-curvature of bending part is 4mm.The intensity of solid copper conductor, ductility and electric conductivity are all better, by adopting solid copper conductor, can strengthen the physical strength of wire on the one hand, on the other hand can Loss reducing.In addition, copper conductor flexible, repeatedly bends not easy fracture, is beneficial to wiring.Traverse design is become " U " type structure, wire the end of a thread can be made to be connected with connection terminal be convinced, tight and solid and reliable, make the contact resistance of junction be reduced to minimum degree, be convenient for changing test connection.
Fig. 4 is the schematic diagram of short circuit sheet work.Short circuit sheet 9 can be rotated around turning axle 13 in spatial vertical face by insulation pivot link 8, is in working position or off-position to regulate short circuit sheet 9.During test, the second voltage terminal 3 and the second current terminal 4 can regard voltage pile crown and the electric current pile crown of transformer respectively as.Working position B is the position of voltage pile crown and electric current pile crown short circuit, and off-position A is the position that voltage pile crown and electric current pile crown disconnect.During Insulation Test, the second voltage terminal 3 and the reliable short circuit of the second current terminal 4, during attribute testing, the second voltage terminal 3 and the reliable disjunction of the second current terminal 4.
In concrete process of the test, the first voltage terminal 1 and the first current terminal 2 are electrically connected with bushing shell for transformer by twin-core shielding line.Namely the first voltage terminal 1 and the first current terminal 2 are electrically connected to pile crown on high voltage side of transformer sleeve pipe or the pile crown on medium voltage side sleeve pipe or the pile crown on low-pressure side sleeve pipe by twin-core shielding line.Second voltage terminal 3 and the second current terminal 4 can be electrically connected with each test apparatus according to pilot project demand, and other states not connecing test apparatus select short circuit, unsettled or ground connection as required.High-voltage earthing terminal 7 in terminal block, middle pressure ground terminal 16 and the first ground terminal 5 are all electrically connected with Transformer Bushing Tap by shielding line.Draw test connection to universal test connecting terminal block by disposable from the pile crown on the pile crown high voltage side of transformer sleeve pipe, medium voltage side sleeve pipe, the pile crown on low-pressure side sleeve pipe and high-pressure side bottom shielding of bushing and medium voltage side bottom shielding of bushing, this universal test connecting terminal block is equal to the pile crown on power transformer high pressure, middle pressure, low-tension bushing and high-pressure side bottom shielding of bushing and medium voltage side bottom shielding of bushing is transferred to ground.Specifically describe the method for attachment of several pilot project:
(1) when carrying out the electrical tests such as winding D.C. resistance, low-voltage short-circuit impedance, no-load voltage ratio, short circuit sheet 9 is in off-position A, voltage pile crown on universal test connecting terminal block and electric current pile crown are separately used alone, and connect pressure-wire and the current line of twin-core shielding line separately;
(2) when carrying out the flash test such as dielectric loss, insulation resistance project, short circuit sheet 9 is in working position B, voltage pile crown on universal test connecting terminal block and electric current pile crown merge use, the pressure-wire of double wired conductor and current line are all electrically connected with the pile crown on high voltage side of transformer sleeve pipe, use as high pressure heart yearn;
(3) measure power transformer high-pressure side, the dielectric loss of each phase sleeve pipe of medium voltage side and electric capacity time, the joint of end shield lead-in wire is plugged in the first ground terminal 5.When carrying out other tests (winding D.C. resistance, low-voltage short-circuit impedance, no-load voltage ratio, no-load test, dielectric loss, insulation resistance), end shield needs good ground connection, and now end shield pigtail splice is plugged in high-voltage earthing terminal 7 and middle pressure ground terminal 16.
In process of the test, only disposablely need draw all tests above transformer link to universal test connecting terminal block, this terminal block is placed in ground, therefore testing crew can complete docking of terminal block and test apparatus on the ground according to pilot project demand, easily changes test connection.Testing crew without the need to again climbing transformer to change test connection in process of the test, thus reaches the object improving test efficiency, reduce ascend operation risk.
Claims (6)
1. a transformer universal test connecting terminal block, is characterized in that, comprises three groups of low pressure end subgroups; Described low pressure end subgroup comprises the first voltage terminal, the second voltage terminal, the first current terminal and the second current terminal, first voltage terminal wire is electrically connected to the second voltage terminal, first current terminal wire is electrically connected to the second current terminal, also comprises the short-circuit piece for short circuit second voltage terminal and the second current terminal; Also comprise four groups of high-pressure side subgroups; Described high-pressure side subgroup is identical with low pressure end sub-group structure, and also comprise the first ground terminal and the second ground terminal, the first ground terminal is electrically connected to the second ground terminal; Also comprise grounding copper bar, grounding copper bar is provided with four high-voltage earthing terminals.
2. transformer universal test connecting terminal block according to claim 1, is characterized in that, also comprises four groups of intermediate voltage terminal subgroups; The structure of described intermediate voltage terminal subgroup is identical with high-pressure side subgroup; Described grounding copper bar is also provided with in four and presses ground terminal.
3. transformer universal test connecting terminal block according to claim 1 and 2, is characterized in that, all voltage terminals and current terminal are all set with porcelain insulator and wiring hold-down bolt.
4. transformer universal test connecting terminal block according to claim 1 and 2, is characterized in that, all ground terminals adopt socket of pulling pin.
5. transformer universal test connecting terminal block according to claim 1, is characterized in that, also comprise shell; Described high-pressure side subgroup and low pressure end subgroup array from left to right and are arranged on the upper surface of shell, wherein the first voltage terminal, the first current terminal and the first ground terminal arranged in parallel are in the side of upper surface of outer cover, and the second voltage terminal, the second current terminal and the second ground terminal arranged in parallel are at the opposite side of upper surface of outer cover; Described short-circuit piece is fixed on upper surface of outer cover by insulation pivot link, between the second voltage terminal and the second current terminal, and can short circuit second voltage terminal and the second current terminal after rotation.
6. transformer universal test connecting terminal block according to claim 2, is characterized in that, also comprise shell; Described high-pressure side subgroup, intermediate voltage terminal subgroup and low pressure end subgroup array from left to right and are arranged on the upper surface of shell, wherein the first voltage terminal, the first current terminal and the first ground terminal arranged in parallel are in the side of upper surface of outer cover, and the second voltage terminal, the second current terminal and the second ground terminal arranged in parallel are at the opposite side of upper surface of outer cover; Described short-circuit piece is fixed on upper surface of outer cover by insulation pivot link, between the second voltage terminal and the second current terminal, and can short circuit second voltage terminal and the second current terminal after rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020940.3U CN205229199U (en) | 2015-12-10 | 2015-12-10 | General experimental binding post row of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020940.3U CN205229199U (en) | 2015-12-10 | 2015-12-10 | General experimental binding post row of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229199U true CN205229199U (en) | 2016-05-11 |
Family
ID=55904256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020940.3U Active CN205229199U (en) | 2015-12-10 | 2015-12-10 | General experimental binding post row of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205229199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220826A (en) * | 2019-12-05 | 2020-06-02 | 国网河南省电力公司南阳供电公司 | Integrated transformer test device for electrical test of transformer |
| WO2022242698A1 (en) * | 2021-05-20 | 2022-11-24 | 中铁电气工业有限公司 | Discharge grounding protection device for dry-type transformer |
-
2015
- 2015-12-10 CN CN201521020940.3U patent/CN205229199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220826A (en) * | 2019-12-05 | 2020-06-02 | 国网河南省电力公司南阳供电公司 | Integrated transformer test device for electrical test of transformer |
| WO2022242698A1 (en) * | 2021-05-20 | 2022-11-24 | 中铁电气工业有限公司 | Discharge grounding protection device for dry-type transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205229199U (en) | General experimental binding post row of transformer | |
| CN202693622U (en) | Power transformer test connecting device | |
| CN108445265A (en) | A kind of termination of the electrical pressure test of insulating tool | |
| CN202817450U (en) | Short-circuit structure of contact piece of connector | |
| CN204142947U (en) | Secondary terminals shorting stub is used in mutual inductor test | |
| CN201897628U (en) | Tester for intermediate joints for cables with extruded insulation | |
| CN204464708U (en) | Power supply winding dish changeable type power input | |
| CN104466851A (en) | Tubular bus duct structure | |
| CN214124274U (en) | High-voltage test patch cord capable of preventing high-voltage leakage | |
| CN208999490U (en) | A kind of GIS loop resistance test device | |
| CN104931865B (en) | A kind of Voltage Cable Lines Construction pressure test insulating boot and test method | |
| CN102629512B (en) | A kind of for delta connection structure for secondary side of high-current pulse short-circuit dry type transformer | |
| CN203479920U (en) | Special high-voltage testing device for transformers | |
| CN203811635U (en) | Cable insulation test fixture | |
| CN203895261U (en) | Combined wire connector of secondary circuit short-circuiting wire of current/voltage transformer | |
| CN207424133U (en) | A kind of three-phase Y type heavy current testers | |
| CN203838324U (en) | Special test grounding device for secondary winding of high-voltage transformer | |
| CN105891558A (en) | Insulating rod batch test grounding electrode | |
| CN203895640U (en) | Grounding point switching device of voltage transformer secondary neutral grounding wire | |
| CN202816581U (en) | Transformer with earthing conducting layer | |
| CN206161735U (en) | Transformer oil paper insulation test device | |
| CN205039354U (en) | Exempt from discharger of ascending a height | |
| CN208568860U (en) | A kind of short-circuit line applied to Substation Electric Equipment mutual inductor secondary terminals | |
| CN209590139U (en) | A kind of magnetic assist method conversion equipment | |
| CN214673343U (en) | Switching device convenient to connect test wire and aviation connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |