CN203573811U - Outdoor three-phase split type combined transformer - Google Patents
Outdoor three-phase split type combined transformer Download PDFInfo
- Publication number
- CN203573811U CN203573811U CN201320673575.0U CN201320673575U CN203573811U CN 203573811 U CN203573811 U CN 203573811U CN 201320673575 U CN201320673575 U CN 201320673575U CN 203573811 U CN203573811 U CN 203573811U
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- phase
- transformer
- outdoor
- split type
- mutual inductor
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Abstract
The utility model relates to electric system high voltage measuring devices, in particular to an outdoor three-phase split type combined transformer. The outdoor three-phase split type combined transformer comprises an A-phase current transformer, a C-phase current transformer, an A-phase voltage transformer and a C-phase voltage transformer, the A-phase current transformer, the C-phase current transformer, the A-phase voltage transformer and the C-phase voltage transformer are single-phase transformers, a secondary terminal of the A-phase current transformer, a secondary terminal of the C-phase current transformer, a secondary terminal of the A-phase voltage transformer and a secondary terminal of the C-phase voltage transformer are leaded to a secondary connecting box, and the four transformers and the secondary connecting box are arranged on a groove type base. The outdoor three-phase split type combined transformer has the advantages of being compact in structure, enabling wire connecting to be convenient, being resistant to ultraviolet wind erosion and long in maintenance period, preventing electricity larceny and being intensive.
Description
Technical field
The utility model relates to electric power system high-pressure measurement mechanism, specifically the split type combination transformer of a kind of outdoor three-phase.
Background technology
Outdoor combination transformer is the equipment of measuring electric current, voltage or electric energy metrical in electric power system.The present situation of the outdoor combination transformer of 35kV electric pressure that electric power system is at present used is: adopt 2 current transformers and 2 forms that voltage transformer is assembled in erecting bed, the secondary connection of instrument transformer is also to distinguish at the scene after outgoing cable, delivering to respectively in the devices such as secondary electric energy meter, there is the shortcomings such as onsite moving workload is large, installation is complicated, volume is large, wiring is cumbersome, maintenance maintenance workload is large in overall structure again.Related personnel once studied the outer combination transformer possible designs of integrated casting type 35kV three phase user's, in view of integrated casting type cannot meet in resin-cast technique, and resin material used is not suitable for the irregular power product that this volume is larger at present, therefore, the outdoor combination transformer of 35kV needs further design improvement.
Utility model content
In order to solve the outdoor combination transformer of existing electric power system 35kV, have the shortcomings such as installation is complicated, volume is large, wiring is complicated, maintenance maintenance workload is large, the utility model provides a kind of outdoor three-phase split type combination transformer.
Adopt 4 single-phase transformers to be installed on grooved base, secondary terminals causes jointly in secondary terminal box, has compact conformation, easy-to-connect, UV resistant wind erosion, long, the intensive split type combination transformer of outdoor three-phase of maintenance period.
The technical scheme that the utility model adopted is for achieving the above object: the split type combination transformer of a kind of outdoor three-phase, comprise A phase current mutual inductor, C phase current mutual inductor, A phase voltage instrument transformer and C phase voltage instrument transformer, described A phase current mutual inductor, C phase current mutual inductor, A phase voltage instrument transformer and C phase voltage instrument transformer are single-phase transformers, and its secondary terminals causes in secondary terminal box jointly; Described four instrument transformers are also installed on grooved base with secondary terminal box.
It is that epoxy resin outside is the insulation system of silicon rubber that described four instrument transformers are inner.
" order " font structure that described grooved base is assembled welding.
Described grooved base is provided with several installing holes.
Described A phase current mutual inductor and C phase current mutual inductor are arranged on the place ahead of grooved base, and A phase voltage instrument transformer and C phase voltage instrument transformer are arranged on the rear of grooved base, and secondary terminal box is arranged on the centre position, the place ahead of grooved base.
Between the A phase connection terminal of the leading-out terminal of described A phase current mutual inductor and A phase voltage instrument transformer, be bolted A phase primary connection plate.
Between the C phase connection terminal of the leading-out terminal of described C phase current mutual inductor and C phase voltage instrument transformer, be bolted C phase primary connection plate.
Between the B phase connection terminal of the B phase connection terminal of described A phase voltage instrument transformer and C phase voltage instrument transformer, be bolted B phase primary connection plate.
In the middle of described B phase primary connection plate, be provided with installing hole.
The utlity model has following advantage and beneficial effect:
1. compact conformation, easy-to-connect: batch production completes four univoltage instrument transformers are arranged on a base, guarantee on the basis of product insulation distance, structure is compacter, the integrated design of primary connection plate and secondary terminal box, wiring is installed at the scene of convenient power department, can be installed in power circuit and go flexibly, as electric current, voltage measurement and electric energy metrical, use.
2. UV resistant wind erosion, maintenance period are long: single-phase bulk voltage instrument transformer all adopts epoxy resin and silicon rubber composite insulation structure, product has enough surface insulation creepage distances, silicon rubber insulation material has good tracking resistance and electrical erosion resistance energy in addition, effectively prevent electric power system pollution flashover fault, the product maintenance cycle is long.
3. anti-electricity-theft, intensive: secondary connection is positioned at whole totally enclosed secondary terminal box, guarantee product can the short circuit because rainwater soaks, corrosion; And have with lead sealing function, avoid switching secondary line and cause stealing electricity phenomenon, single unit system intensive degree is higher.
Accompanying drawing explanation
Fig. 1 is the utility model external structure front view;
Fig. 2 is the utility model external structure left view;
Fig. 3 is the utility model external structure vertical view.
Wherein, 1, A phase current mutual inductor; 2, C phase current mutual inductor; 3, A phase voltage instrument transformer; 4, C phase voltage instrument transformer; 5, secondary terminal box; 6, A phase primary connection plate; 7, C phase primary connection plate; 8, B phase primary connection plate; 9, grooved base; 10, installing hole; 11, A phase current mutual inductor leading-out terminal; 12, A phase voltage instrument transformer A phase connection terminal; 13, C phase current mutual inductor leading-out terminal; 14, C phase voltage instrument transformer C phase connection terminal; 15, A phase voltage instrument transformer B phase connection terminal; 16, C phase voltage instrument transformer B phase connection terminal; 17, B phase terminal installing hole.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Figure 1-3, the utility model is installed and is combined through the grooved base 9 of assembled welding by A phase current mutual inductor 1, C phase current mutual inductor 2, A phase voltage instrument transformer 3, C phase voltage instrument transformer 4 and secondary terminal box 5.It is that epoxy resin outside is the insulation system form of silicon rubber that four single-phase transformers are inner, has good hydrophobicity and migration of hydrophobicity life-span, good uvioresistant wind erosion performance, does not need periodic maintenance.The grooved base 9 of assembled welding is " order " font structure, which is provided with several installing holes 10, for the fixing of four single-phase transformers, by dress, uses, and residue installing hole is as fixing use of installation of on-the-spot integrated device.A phase current mutual inductor 1 and C phase current mutual inductor 2 are installed in grooved base 9 the place aheads, A phase voltage instrument transformer 3 and C phase voltage instrument transformer 4 are installed in grooved base 9 rears, secondary terminal box 5 is installed in grooved base 9 centre positions, the place ahead, the secondary terminals of four instrument transformers causes jointly in secondary terminal box 5, effectively guarantee the sealing of secondary wiring terminals, can the short circuit because rainwater soaks, corrosion.Integral layout compact conformation, secondary connection batch production completes, intensive better effects if.A phase primary connection plate 6 employing bolts etc. are fixed on the leading-out terminal 11 of A phase current mutual inductor 1 and the A phase connection terminal 12 of A phase voltage instrument transformer 3; C phase primary connection plate 7 employing bolts etc. are fixed on the leading-out terminal 13 of C phase current mutual inductor 2 and the C phase connection terminal 14 of C phase voltage instrument transformer 4, facilitate the wiring of power department scene to the line of a high voltage bus.B phase primary connection plate 8 employing bolts etc. are fixed on the B phase connection terminal 15 of A phase voltage instrument transformer 3 and the B phase connection terminal 16 of C phase voltage instrument transformer 4, the installing hole 17 that centre is provided with, on it, with set bolt, confession field connection is connected with system B phase bus.
The utility model is completely according to a kind of new product of national standard design, current transformer iron core adopts ultramicro-crystal alloy material, the unshakable in one's determination employing of voltage transformer rolls iron core, utilize electromagnetic conversion principle, make secondary current and the voltage situation of change of reflected measurement primary current and voltage exactly, be transferred to secondary measurement and control device, make product directly be installed in power circuit and go, as electric current, voltage measurement and electric energy metrical, use.
Adopt four single-phase epoxy resin and silicon rubber composite insulation current-voltage transformer to combine, have compact conformation, easy-to-connect, UV resistant wind erosion, maintenance period long, intensive feature, can be widely used in the outdoor newly-increased circuit of electric power system or transformation circuit and go.
Claims (9)
1. the split type combination transformer of outdoor three-phase, comprise A phase current mutual inductor (1), C phase current mutual inductor (2), A phase voltage instrument transformer (3) and C phase voltage instrument transformer (4), it is characterized in that, described A phase current mutual inductor (1), C phase current mutual inductor (2), A phase voltage instrument transformer (3) and C phase voltage instrument transformer (4) are single-phase transformers, and its secondary terminals causes in secondary terminal box (5) jointly; Described four instrument transformers are also installed on grooved base (9) with secondary terminal box (5).
2. the split type combination transformer of outdoor three-phase according to claim 1, is characterized in that, it is that epoxy resin outside is the insulation system of silicon rubber that described four instrument transformers are inner.
3. the split type combination transformer of outdoor three-phase according to claim 1, is characterized in that, " order " font structure that described grooved base (9) is assembled welding.
4. the split type combination transformer of outdoor three-phase according to claim 3, is characterized in that, described grooved base (9) is provided with several installing holes (10).
5. the split type combination transformer of outdoor three-phase according to claim 1, it is characterized in that, described A phase current mutual inductor (1) and C phase current mutual inductor (2) are arranged on the place ahead of grooved base (9), A phase voltage instrument transformer (3) and C phase voltage instrument transformer (4) are arranged on the rear of grooved base (9), and secondary terminal box (5) is arranged on the centre position, the place ahead of grooved base (9).
6. the split type combination transformer of outdoor three-phase according to claim 1, it is characterized in that, between the leading-out terminal (11) of described A phase current mutual inductor (1) and the A phase connection terminal (12) of A phase voltage instrument transformer (3), be bolted A phase primary connection plate (6).
7. the split type combination transformer of outdoor three-phase according to claim 1, it is characterized in that, between the leading-out terminal (13) of described C phase current mutual inductor (2) and the C phase connection terminal (14) of C phase voltage instrument transformer (4), be bolted C phase primary connection plate (7).
8. the split type combination transformer of outdoor three-phase according to claim 1, it is characterized in that, between the B phase connection terminal (15) of described A phase voltage instrument transformer (3) and the B phase connection terminal (16) of C phase voltage instrument transformer (4), be bolted B phase primary connection plate (8).
9. the split type combination transformer of outdoor three-phase according to claim 8, is characterized in that, is provided with installing hole (17) in the middle of described B phase primary connection plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673575.0U CN203573811U (en) | 2013-10-28 | 2013-10-28 | Outdoor three-phase split type combined transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673575.0U CN203573811U (en) | 2013-10-28 | 2013-10-28 | Outdoor three-phase split type combined transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573811U true CN203573811U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673575.0U Expired - Fee Related CN203573811U (en) | 2013-10-28 | 2013-10-28 | Outdoor three-phase split type combined transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573811U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051147A (en) * | 2014-06-06 | 2014-09-17 | 中山市泰峰电气有限公司 | Outdoor dry combined transformer for electrified railway |
| CN108447667A (en) * | 2018-05-04 | 2018-08-24 | 卓维电力科技有限公司 | A kind of safe voltage transformer |
| CN109524226A (en) * | 2018-12-29 | 2019-03-26 | 重庆睿伊互感器研究院有限公司 | A kind of phase three-wire three type combination transformer for distribution network |
-
2013
- 2013-10-28 CN CN201320673575.0U patent/CN203573811U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051147A (en) * | 2014-06-06 | 2014-09-17 | 中山市泰峰电气有限公司 | Outdoor dry combined transformer for electrified railway |
| CN108447667A (en) * | 2018-05-04 | 2018-08-24 | 卓维电力科技有限公司 | A kind of safe voltage transformer |
| CN109524226A (en) * | 2018-12-29 | 2019-03-26 | 重庆睿伊互感器研究院有限公司 | A kind of phase three-wire three type combination transformer for distribution network |
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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: 20140430 Termination date: 20211028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |