CN211045256U - Current transformer for large-current double protection of generator exciting transformer - Google Patents
Current transformer for large-current double protection of generator exciting transformer Download PDFInfo
- Publication number
- CN211045256U CN211045256U CN201922471259.5U CN201922471259U CN211045256U CN 211045256 U CN211045256 U CN 211045256U CN 201922471259 U CN201922471259 U CN 201922471259U CN 211045256 U CN211045256 U CN 211045256U
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- current transformer
- current
- transformer
- protection
- double
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Abstract
The utility model relates to the field of high-voltage electrical appliances in an electric power system, in particular to a current transformer for large-current double protection of a generator exciting transformer, which comprises a current transformer body, an installation base and a double protection structure; a wiring board for wiring is arranged at the bottom of the current transformer, and the mounting base is mounted on the outer side of the wiring board; two protection architecture are respectively around establishing in the current transformer body and the installation base outside, the utility model discloses a current transformer is used in two protections of generator exciting transformer heavy current through with two protection architecture around establishing in the current transformer body and the installation base outside, can carry out dual protection to the current transformer body and the installation base outside, can effectual extension current transformer's life, prevent that cracked problem from appearing in current transformer, avoid the emergence of potential safety hazard.
Description
Technical Field
The utility model relates to a high voltage apparatus field among the power system, more specifically relates to a current transformer is used in two protections of generator exciting transformer heavy current.
Background
At present, the current transformer for large current protection of the generator exciting transformer adopts an epoxy resin or unsaturated resin casting structure, because of the influence of a casting mold and the limitation of an installation space in a protection cabinet, a product is generally protected by a protection structure of one layer, if the generator exciting transformer needs double protection, two casting current transformers need to be provided, in addition, because the copper bar passing through the casting current transformers runs for a long time and the current reaches 6000A, the casting body of the current transformer is likely to crack due to higher temperature rise, and potential safety hazards of equipment exist.
Therefore, it is necessary to provide a current transformer for large current dual protection of a generator exciting transformer, which solves the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art at least one kind defect (not enough), provide a generator excitation transformer heavy current double protection that can play duplicate protection and use current transformer.
In order to solve the technical problem, the technical scheme of the utility model as follows: a current transformer for large-current double protection of a generator exciting transformer comprises a current transformer body, an installation base and a double protection structure;
a wiring board for wiring is arranged at the bottom of the current transformer, and the mounting base is mounted on the outer side of the wiring board;
the double-protection structure is respectively wound on the outer sides of the current transformer body and the installation base, and double protection can be performed on the outer sides of the current transformer body and the installation base by winding the double-protection structure on the outer sides of the current transformer body and the installation base, so that the service life of the current transformer can be effectively prolonged, the problem of cracking of the current transformer is prevented, and the potential safety hazard is avoided.
Further, the double protection structure comprises a heat-shrinkable bandage and a fixing buckle;
an insulating paint layer is wrapped outside the thermal contraction binding belt;
the thermal contraction ligature belt is fixed on the installation base through fixed knot after establishing overcurrent transformer body and installation base in proper order, through wrapping up the thermal contraction ligature belt in the outside of current transformer body and installation base to after wrapping up, soak the thermal contraction ligature belt full of insulating varnish and make its solidification, realize the effect of double-deck protection, ensure that current transformer can not appear the crack at the long-time operation in-process of heavy current, prolong current transformer's life.
Furthermore, be equipped with the installation bayonet socket on the installation base, fixed knot and installation bayonet socket size phase-match through the installation bayonet socket that sets up on the installation base for the fixed knot of thermal contraction ligature area can be better fixed, ensures better wrapping and fixing.
Furthermore, still include the connecting plate, the installation base passes through the connecting plate to be fixed on the wiring board, through the connecting plate for the setting that the installation base can be fixed is on the wiring board, plays the effect of protection to the wiring board.
Still further, the heat shrink ligature area is made by insulating material the utility model discloses in, the heat shrink ligature area is worked out by modified polyester fiber filament and forms, and in practical application, the heat shrink ligature area can also be made by other insulating material, and it is all within the protection scope of the utility model.
Furthermore, the wiring board is 1 at least, and in practical application, the wiring board of different quantity can be set up according to the needs that use, and it is all within the scope of protection of the utility model.
Furthermore, the wiring board is provided with a wiring terminal, and the wiring board can better fix the wiring through the arrangement of the wiring terminal, so that the reliable connection of a power supply is ensured.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses a two current transformer for protection of generator exciting transformer heavy current through with two protection architecture around establishing in the current transformer body and the installation base outside, can carry out dual protection to the current transformer body and the installation base outside, can effectual extension current transformer's life, prevents that cracked problem from appearing in the current transformer, avoids the emergence of potential safety hazard.
Drawings
Fig. 1 is a schematic structural diagram of the current transformer of the present invention with two wiring boards.
Fig. 2 is a schematic structural view of the thermal contraction binding band which is provided with the insulating paint soaked on the current transformer.
In the figure, 1 is a current transformer body, 2 is an installation base, 3 is a double-protection structure, 4 is a wiring board, 5 is a heat-shrinkable binding tape, 6 is a fixing buckle, 7 is an installation bayonet, 8 is a connecting board, and 9 is a wiring terminal.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, the current transformer for large-current double protection of the generator exciting transformer comprises a current transformer body 1, a mounting base 2 and a double protection structure 3; a wiring board 4 for wiring is arranged at the bottom of the current transformer 1, and the mounting base 2 is mounted on the outer side of the wiring board 4; two protective structure 3 are respectively around establishing in the current transformer body 1 and the installation base 2 outside, through with two protective structure around establishing in the current transformer body and the installation base outside, can carry out dual protection to the current transformer body and the installation base outside, can effectual extension current transformer's life, prevent that cracked problem from appearing in current transformer, avoid the emergence of potential safety hazard.
As shown in fig. 2, the double protection structure 3 comprises a heat-shrinkable bandage 5 and a fixing buckle 6; an insulating paint layer is wrapped outside the thermal contraction binding belt 5; thermal contraction ligature area 5 is fixed on installation base 2 through fixed knot 6 after establishing overcurrent transformer body 1 and installation base 2 in proper order, establish the outside at current transformer body 1 and installation base 2 through wrapping up thermal contraction ligature area 5, and after wrapping up, saturate full insulating varnish with thermal contraction ligature area 5 and make its solidification, realize the effect of double-deck protection, ensure current transformer at the long-time operation in-process of heavy current, the crack can not appear, prolong current transformer's life, wherein, be equipped with installation bayonet 7 on installation base 2, fixed knot 6 and installation bayonet 7 size phase-match, through the installation bayonet 7 that sets up on installation base 2, make the fixed knot 6 of thermal contraction ligature area 5 can be better fixed, ensure better wrapping and fixing.
Besides, the utility model also comprises a connecting plate 8, the installation base 2 is fixed on the wiring board 4 through the connecting plate 8, the installation base 2 can be fixedly arranged on the wiring board 4 through the connecting plate 4, and plays a role of protecting the wiring board 4, wherein, the thermal contraction binding band 5 is made of insulating material, in the utility model, the thermal contraction binding band 5 is woven by modified polyester fiber filament, in practical application, the thermal contraction binding band 5 can also be made of other insulating materials, which are all within the protection range of the utility model, in the utility model, the number of the wiring boards 4 is at least 1, in practical application, different numbers of wiring boards 4 can be arranged according to the use requirement, which are all within the protection range of the utility model, wherein, the wiring board 4 is provided with a wiring terminal 9, through the arrangement of the wiring terminal, the wiring board can better fix the wiring, ensuring a reliable connection of the power supply.
During the use, to soak the thermal contraction ligature area of insulated paint and fix on the installation base through fixed knot after establishing overcurrent transformer body and installation base in proper order, through the insulated paint of thermal contraction ligature area and solidification, carry out duplicate protection to current transformer body and installation base, can effectual extension current transformer's life, prevent that cracked problem from appearing in current transformer, avoid the emergence of potential safety hazard.
In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. A current transformer for large-current double protection of a generator exciting transformer comprises a current transformer body and an installation base, and is characterized by also comprising a double protection structure;
a wiring board for wiring is arranged at the bottom of the current transformer, and the mounting base is mounted on the outer side of the wiring board;
and the double protection structures are respectively wound on the outer sides of the current transformer body and the mounting base.
2. The large-current double-protection current transformer of the generator exciting transformer according to claim 1, wherein the double-protection structure comprises a heat-shrinkable bandage and a fixing buckle;
an insulating paint layer is wrapped outside the thermal contraction binding belt;
the thermal contraction binding belt is fixed on the installation base through the fixing buckle after sequentially winding the overcurrent transformer body and the installation base.
3. The large-current double-protection current transformer of the generator exciting transformer as claimed in claim 2, wherein the mounting base is provided with a mounting bayonet, and the fixing buckle is matched with the mounting bayonet in size.
4. A high-current double-protection current transformer for a generator exciting transformer according to claim 2, further comprising a connecting plate, wherein the mounting base is fixed on the wiring board through the connecting plate.
5. A high current double protection current transformer for a generator exciting transformer according to claim 2, characterized in that the heat shrink bandage is made of insulating material.
6. A generator exciter transformer high-current dual-protection current transformer according to claim 1, wherein the number of the terminal boards is at least 1.
7. A large-current double-protection current transformer for a generator exciting transformer according to claim 1, wherein a wiring terminal is provided on the wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922471259.5U CN211045256U (en) | 2019-12-31 | 2019-12-31 | Current transformer for large-current double protection of generator exciting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922471259.5U CN211045256U (en) | 2019-12-31 | 2019-12-31 | Current transformer for large-current double protection of generator exciting transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211045256U true CN211045256U (en) | 2020-07-17 |
Family
ID=71567534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922471259.5U Expired - Fee Related CN211045256U (en) | 2019-12-31 | 2019-12-31 | Current transformer for large-current double protection of generator exciting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211045256U (en) |
-
2019
- 2019-12-31 CN CN201922471259.5U patent/CN211045256U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20211231 |