CN208903789U - A kind of transformer external current mutual inductor - Google Patents
A kind of transformer external current mutual inductor Download PDFInfo
- Publication number
- CN208903789U CN208903789U CN201821958040.7U CN201821958040U CN208903789U CN 208903789 U CN208903789 U CN 208903789U CN 201821958040 U CN201821958040 U CN 201821958040U CN 208903789 U CN208903789 U CN 208903789U
- Authority
- CN
- China
- Prior art keywords
- transformer
- epoxy resin
- mutual inductor
- wiring terminals
- box
- 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.)
- Withdrawn - After Issue
Links
- 239000003822 epoxy resin Substances 0.000 claims abstract description 41
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 41
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 33
- 238000004804 winding Methods 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to a kind of transformer external current mutual inductors, belong to transformer transformer technical field.Technical solution is: secondary winding (1), epoxy resin sheath (2), secondary wiring terminals box (5) and secondary wiring terminals (4) are integrally formed by poured with epoxy resin, constitute cyclic currents mutual inductor；The cyclic currents mutual inductor is set in the bottom of bushing shell for transformer (6), is fixed on power transformer enclosure (7) upper surface；The secondary winding (1) of cyclic currents mutual inductor is matched with the conducting rod in bushing shell for transformer (6), and the conducting rod in bushing shell for transformer (6) is as Primary Conductor.The utility model increases cyclic currents mutual inductor in the case where not disassembling power transformer enclosure, through outside to replace current transformer of problems in power transformer enclosure, and cyclic currents mutual inductor is external, oil-free structure, and intensity is big, good insulation preformance；It is easy for installation, performance is stable and non-maintaining.
Description
Technical field
The utility model relates to a kind of transformer external current mutual inductors, belong to transformer mutual inductor technology neck
Domain.
Background technique
Currently, transformer is assemblied in power transformer enclosure with bushing current transformer, soak in the oil, if increasing seat
There are problem, maintenance, replacements also very big difficulty for interior current transformer；After transformer station high-voltage side bus, if you need to increase in seat
Increase bushing current transformer, need to disassemble power transformer enclosure, operation difficulty is big, is difficult to realize.
Utility model content
The purpose of the utility model is to provide a kind of transformer external current mutual inductors, increase not disassembling transformer
In the case where seat, cyclic currents mutual inductor is increased to replace Current Mutual Inductance of problems in power transformer enclosure by outside
Device, and current transformer quantity can be increased according to actual needs, solve the above problem existing for background technique.
The technical solution of the utility model is:
A kind of transformer external current mutual inductor includes secondary winding, epoxy resin sheath, secondary wiring terminals box
And secondary wiring terminals；The secondary winding is generally cyclic annular, and outside is equipped with epoxy resin sheath；Secondary winding and secondary connection
Terminal connection, secondary wiring terminals are arranged in secondary wiring terminals box, and secondary wiring terminals box is epoxy resin box body, secondary
Winding, epoxy resin sheath, secondary wiring terminals box and secondary wiring terminals are integrally formed by poured with epoxy resin, constitute ring
Shape current transformer；The cyclic currents mutual inductor is set in the bottom of bushing shell for transformer, is fixed on power transformer enclosure upper end
On face；The secondary winding of cyclic currents mutual inductor is matched with the conducting rod in bushing shell for transformer, the conducting rod in bushing shell for transformer
As Primary Conductor.
The secondary winding quantity is more than one, and be arranged above and below arrangement, and secondary winding quantity can phase according to actual needs
It should increase and decrease.
Fixed installation inserts is equipped in the epoxy resin sheath, fixed installation inserts passes through with epoxy resin sheath
Poured with epoxy resin is integrally formed, and cyclic currents mutual inductor is fixed on power transformer enclosure by fixed installation with inserts.Example
Such as: fixed installation is screw rod with inserts, and power transformer enclosure is equipped with mounting hole, is fastened by nut by cyclic currents mutual inductor
It is fixed on power transformer enclosure.
The secondary wiring terminals box is located at epoxy resin sheath outer surface, inside sets secondary wiring terminals；Secondary connection end
The side wall of sub- box is equipped with entrance hole, the nameplate of the surface mount product of secondary wiring terminals box.
The epoxy resin sheath, the insulation thickness ceiling voltage transformer induced with cyclic currents match.
The entire cyclic currents mutual inductor integral type pouring molding of the utility model, secondary winding quantity can be according to actual needs
Corresponding increase and decrease；Inserts, which is fixedly mounted, accordingly to be adjusted according to actual installation size；Casting epoxy resin type can be according to using
Environment adjustment proportion and model.
The good effect of the utility model: in the case where not disassembling power transformer enclosure, cyclic annular electricity is increased by outside
Current transformer is to replace current transformer of problems in power transformer enclosure, and it is mutual to increase according to actual needs electric current
Sensor quantity, cyclic currents mutual inductor is external, oil-free structure；Epoxy resin integral type pouring molding, intensity is big, insulation performance
It is good；It is easy for installation, performance is stable and non-maintaining.
Detailed description of the invention
Fig. 1 is the utility model schematic cross-sectional view；
Fig. 2 is the utility model schematic view of the front view；
Fig. 3 is scheme of installation of the utility model in bushing shell for transformer position；
In figure: secondary winding 1, epoxy resin sheath 2 are fixedly mounted and use inserts 3, secondary wiring terminals 4, secondary connection end
Sub- box 5, power transformer enclosure 7, entrance hole 8, nameplate 9, increases seat ventilation union 10 at bushing shell for transformer 6.
Specific embodiment
Below in conjunction with attached drawing, by embodiment, the utility model is described in further detail.
A kind of transformer external current mutual inductor includes secondary winding 1, epoxy resin sheath 2, secondary wiring terminals
Box 5 and secondary wiring terminals 4；The secondary winding 1 is generally cyclic annular, and outside is equipped with epoxy resin sheath 2；Secondary winding 1 with
Secondary wiring terminals 4 connect, and secondary wiring terminals 4 are arranged in secondary wiring terminals box 5, and secondary wiring terminals box 5 is epoxy
Resin box body, secondary winding 1, epoxy resin sheath 2, secondary wiring terminals box 5 and secondary wiring terminals 4 are poured by epoxy resin
Note is integrally formed, and constitutes cyclic currents mutual inductor；The cyclic currents mutual inductor is set in the bottom of bushing shell for transformer 6, fixed
On 7 upper surface of power transformer enclosure；The secondary winding 1 of cyclic currents mutual inductor is matched with the conducting rod in bushing shell for transformer 6,
Conducting rod in bushing shell for transformer 6 is as Primary Conductor.
1 quantity of secondary winding is more than one, and be arranged above and below arrangement, and secondary winding quantity can phase according to actual needs
It should increase and decrease.
It is equipped with fixed installation inserts 3 in the epoxy resin sheath 2, is fixedly mounted with inserts 3 and epoxy resin sheath 2
It is integrally formed by poured with epoxy resin, cyclic currents mutual inductor is fixed on power transformer enclosure 7 by fixed installation inserts 3
On.Such as: being fixedly mounted with inserts 3 is screw rod, and power transformer enclosure 7 is equipped with mounting hole, is fastened by nut by cyclic annular electricity
Current transformer is fixed on power transformer enclosure 7.
The secondary wiring terminals box 5 is located at 2 outer surface of epoxy resin sheath, inside sets secondary wiring terminals 4；Secondary connection
The side wall of terminal board 5 is equipped with entrance hole 8, the nameplate 9 of the surface mount product of secondary wiring terminals box 5.
The epoxy resin sheath, the insulation thickness ceiling voltage transformer induced with cyclic currents match.
Secondary winding 1, fixed installation inserts 3 and secondary wiring terminals box 5 and secondary wiring terminals 4 are placed in mold
In, epoxy resin is poured into, forms cyclic currents mutual inductor after solidification；The secondary winding 1 is generally cyclic annular, and outside is asphalt mixtures modified by epoxy resin
Rouge sheath 2；Secondary wiring terminals box 5 is epoxy resin box body, and secondary winding 1 is fixedly mounted and uses inserts 3, secondary wiring terminals
Box 5 and secondary wiring terminals 4 are integrally formed by poured with epoxy resin；
Transformer in use, if there are problems for the current transformer in power transformer enclosure, needs replacing electricity
The cyclic currents mutual inductor is set in the bottom of bushing shell for transformer 6 by current transformer, fixed with inserts 3 by fixed installation
On 7 upper surface of power transformer enclosure；The secondary winding 1 of cyclic currents mutual inductor is matched with the conducting rod in bushing shell for transformer 6,
Conducting rod in bushing shell for transformer 6 is as Primary Conductor；
It is connect by the secondary wiring terminals 4 in secondary wiring terminals box 5 with current data line, guarantees that transformer is normally transported
Row does not need dismantling power transformer enclosure.
If needing to increase the quantity of current transformer in the operation of the transformer, secondary winding 1 is determined as needed
Quantity, be arranged above and below arrangement, is integrally formed by poured with epoxy resin.
The entire cyclic currents mutual inductor integral type pouring molding of the utility model, secondary winding quantity can be according to actual needs
Corresponding increase and decrease；Inserts, which is fixedly mounted, accordingly to be adjusted according to actual installation size；Casting epoxy resin type can be according to using
Environment adjustment proportion and model.
In embodiment, the quantity of secondary winding 1 is two.Be arranged above and below arrangement, is integrally formed by poured with epoxy resin.
The bottom of bushing shell for transformer 6 is arranged in cyclic currents mutual inductor, is fixed on power transformer enclosure 7 by fixed installation inserts 3
On upper surface, above the raising seat ventilation union 10 of power transformer enclosure 7.
Claims (4)
1. a kind of transformer external current mutual inductor, it is characterised in that: include secondary winding (1), epoxy resin sheath
(2), secondary wiring terminals box (5) and secondary wiring terminals (4)；The secondary winding (1) is generally cyclic annular, and outside is equipped with epoxy
Resin sheath (2)；Secondary winding (1) is connect with secondary wiring terminals (4), and secondary wiring terminals (4) are arranged at secondary connection end
In sub- box (5), secondary wiring terminals box (5) is epoxy resin box body, and secondary winding (1), secondary connects epoxy resin sheath (2)
Line terminals box (5) and secondary wiring terminals (4) are integrally formed by poured with epoxy resin, constitute cyclic currents mutual inductor；It is described
Cyclic currents mutual inductor is set in the bottom of bushing shell for transformer (6), is fixed on power transformer enclosure (7) upper surface；Cyclic annular electricity
The secondary winding (1) of current transformer is matched with the conducting rod in bushing shell for transformer (6), and the conducting rod in bushing shell for transformer (6) is made
For Primary Conductor.
2. a kind of transformer external current mutual inductor according to claim 1, it is characterised in that: the secondary winding
(1) quantity is more than one, and be arranged above and below arrangement.
3. according to claim 1 or a kind of transformer external current mutual inductor, it is characterised in that: the asphalt mixtures modified by epoxy resin
Fixed installation is equipped in rouge sheath (2) with inserts (3), fixed installation passes through asphalt mixtures modified by epoxy resin with inserts (3) and epoxy resin sheath (2)
Rouge casting is integrally formed, and cyclic currents mutual inductor is fixed on power transformer enclosure (7) by fixed installation with inserts (3).
4. a kind of transformer external current mutual inductor according to claim 1 or 2, it is characterised in that: described secondary
Connecting terminal box (5) is located at epoxy resin sheath (2) outer surface, inside sets secondary wiring terminals (4)；Secondary wiring terminals box (5)
Side wall be equipped with entrance hole (8), the nameplate (9) of the surface mount product of secondary wiring terminals box (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958040.7U CN208903789U (en) | 2018-11-27 | 2018-11-27 | A kind of transformer external current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958040.7U CN208903789U (en) | 2018-11-27 | 2018-11-27 | A kind of transformer external current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208903789U true CN208903789U (en) | 2019-05-24 |
Family
ID=66578252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821958040.7U Withdrawn - After Issue CN208903789U (en) | 2018-11-27 | 2018-11-27 | A kind of transformer external current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208903789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360712A (en) * | 2018-11-27 | 2019-02-19 | 保定天威互感器有限公司 | A kind of transformer external current mutual inductor and its application method |
-
2018
- 2018-11-27 CN CN201821958040.7U patent/CN208903789U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360712A (en) * | 2018-11-27 | 2019-02-19 | 保定天威互感器有限公司 | A kind of transformer external current mutual inductor and its application method |
| CN109360712B (en) * | 2018-11-27 | 2023-10-17 | 保定天威互感器有限公司 | External current transformer for transformer and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190524 Effective date of abandoning: 20231017 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190524 Effective date of abandoning: 20231017 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |