CN216699498U - Cable one-end lightning protection cabinet based on isolation transformer - Google Patents
Cable one-end lightning protection cabinet based on isolation transformer Download PDFInfo
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- CN216699498U CN216699498U CN202123035529.1U CN202123035529U CN216699498U CN 216699498 U CN216699498 U CN 216699498U CN 202123035529 U CN202123035529 U CN 202123035529U CN 216699498 U CN216699498 U CN 216699498U
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- 238000002955 isolation Methods 0.000 title claims abstract description 47
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 230000001012 protector Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a cable terminating lightning protection cabinet based on an isolation transformer, which comprises: the lightning protection modules are arranged at the upper part of the cabinet body, are fixed in the six-terminal base and are arranged in an array manner; each lightning protection module is provided with at least two isolation transformers, and the isolation transformers are connected with the lightning protection modules; the first grounding copper strip comprises a transverse grounding copper strip and a longitudinal grounding copper strip, the transverse grounding copper strip is arranged on the six-terminal base corresponding to each row of lightning protection modules and connected with all the six-terminal bases of one row of lightning protection modules, and the longitudinal grounding copper strip is arranged in the wire inlet groove on one side of each row of lightning protection modules; the collector is arranged below the lightning protection module and used for monitoring the overall operation condition of the lightning protection cabinet; the end forming chamber is arranged at the bottom of the cabinet body and is used for being connected with outdoor equipment. The lightning protection device can protect and shield the voltage or current generated by lightning, and the accuracy of signals collected by indoor electronic equipment is guaranteed.
Description
Technical Field
The utility model relates to a cable terminating lightning protection cabinet based on an isolation transformer, and belongs to the technical field of signal lightning protection.
Background
The thunderstorm can damage or even disable railway signal system equipment, influence the normal order of train operation, bring great direct or indirect economic loss simultaneously. Direct lightning strikes, i.e. direct lightning strikes, and lightning induction, i.e. induced lightning, which lead to lightning damage in railway signalling systems. The direct lightning strike is that thundercloud directly discharges through a ground object and generates an electric effect and a thermal effect, and is a main reason for the thunder damage of signal system equipment. Lightning induction is an electromagnetic induction pulse generated by the powerful electromagnetic field of a lightning discharge in an adjacent railway signaling system wire or system equipment. Although the voltage and overcurrent of the electromagnetic induction pulse are not too high, due to the large number of electronic devices included in the railway signal system, the electromagnetic induction pulse may affect the accuracy of the electronic devices and even cause damage thereto. Therefore, the cable of the railway signal is continuously subjected to lightning protection treatment.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a lightning protection cabinet for an end of a cable based on an isolation transformer, which can shield voltage or current generated by lightning, can better ensure accuracy of signal acquisition of indoor electronic equipment, makes track circuit equipment not easily damaged by the lightning, ensures reliability of the equipment, and has very important positive effects on ensuring normal operation of railways
In order to achieve the purpose, the utility model adopts the following technical scheme: a lightning protection cabinet for cable termination based on an isolation transformer comprises: the method comprises the following steps: the lightning protection device comprises a cabinet body, a lightning protection module, a first grounding copper strip, a collector, an end forming chamber and an isolation transformer; the cabinet body is used for placing the lightning protection module, the first grounding copper strip, the collector, the terminating chamber and the isolation transformer; the lightning protection modules are arranged at the upper part of the cabinet body, are fixed in the six-terminal base and are arranged in an array manner; each lightning protection module is provided with at least two isolation transformers, and the isolation transformers are connected with the lightning protection modules; the first grounding copper strip comprises a transverse grounding copper strip and a longitudinal grounding copper strip, the transverse grounding copper strip is arranged on the six-terminal base corresponding to each row of lightning protection modules and connected with all the six-terminal bases of one row of lightning protection modules, and the longitudinal grounding copper strip is arranged in the wire inlet groove on one side of each row of lightning protection modules; the collector is arranged below the lightning protection module and used for monitoring the overall operation condition of the lightning protection cabinet; the end forming chamber is arranged at the bottom of the cabinet body and is used for being connected with outdoor equipment.
Further, one of the two isolation transformers is placed transversely and the other is placed longitudinally.
Furthermore, the lightning protection module is a surge protector which can carry out longitudinal, transverse or longitudinal and transverse protection on the cable core wire for the cable core wire, the surge protector is connected to the cable core wire of the protected equipment through the lightning protection leading terminal of the six-terminal base, and the outgoing line branching terminal of the six-terminal base is connected with the indoor equipment.
Furthermore, the other side of each row of lightning protection modules is provided with a shielding grounding copper bar, and each shielding grounding copper bar is connected through a bus bar arranged at the bottom of the lightning protection module.
Further, the collector comprises a collector main board, a current transformer, a lightning current sensor, a disconnection card and a power supply, wherein the current transformer, the lightning current sensor and the disconnection card are respectively connected with the collector main board.
Further, the collection machine is connected with the display screen arranged on the cabinet body.
Furthermore, the end forming chamber comprises a second grounding copper strip, an end forming box and an arc isolation box, wherein a grounding terminal of the end forming box is connected with the second grounding copper strip, and the arc isolation box is arranged outside the end forming box.
Furthermore, temperature control fire extinguishers are arranged in the cabinet body and the end forming chamber.
Further, the bottom of the cabinet body is provided with a safety ground copper bar.
Due to the adoption of the technical scheme, the utility model has the following advantages:
1. the system in this scheme can shield the voltage or the electric current that the thunder and lightning produced, the accuracy of the indoor electronic equipment acquisition signal of assurance that can be better.
2. This scheme can prevent because other cables of heavy current production spark arc injury, the airtight structure is set to cable one-tenth end room, is equipped with the control by temperature change fire extinguisher, can automatic fire extinguishing, further guarantees lightning protection cabinet safe and reliable.
Drawings
FIG. 1 is a front view of a cable termination lightning protection cabinet according to an embodiment of the utility model;
FIG. 2 is a schematic structural diagram of a lightning protection cabinet body according to an embodiment of the utility model
FIG. 3 is a left side view of a cable termination lightning protection cabinet according to an embodiment of the utility model;
FIG. 4 is a right side view of a cable termination lightning protection cabinet according to an embodiment of the utility model;
FIG. 5 is a bottom view of a cable termination lightning protection cabinet according to an embodiment of the utility model.
Description of the drawings:
1-a cabinet body; 2-lightning protection module; 21-a six terminal base; 22-an isolation transformer; 3-a harvester; 31-a current transformer; a 32-lightning current sensor; 33-a disconnection card; 34-a power supply; 4-an end forming chamber; 41-second grounded copper bars; 42-end forming box; 43-arc isolation box; 5-transverse grounding copper bar; 6-longitudinal grounding copper bar; 7-shielding a grounding copper bar; 8-a bus bar; 9-temperature control fire extinguisher; 10-safely grounding copper bars; 11-display screen.
Detailed Description
The present invention will be described in detail by way of specific examples in order to enable those skilled in the art to better understand the technical solutions of the present invention. It should be understood, however, that the detailed description is provided for a better understanding of the utility model only and that they should not be taken as limiting the utility model. In describing the present invention, it is to be understood that the terminology used is for the purpose of description only and is not intended to be interpreted as indicating or implying any relative importance.
The embodiment discloses a cable terminating lightning protection cabinet based on an isolation transformer, as shown in fig. 1, including: the lightning protection device comprises a cabinet body 1, a lightning protection module 2, a first grounding copper strip, a collector 3, an end forming chamber 4 and an isolation transformer 22;
the cabinet body 1 is used for placing the lightning protection module 2, the first grounding copper strip, the collecting machine 3, the terminating chamber 4 and the isolation transformer 22.
The lightning protection module 2 is arranged on the upper portion of the cabinet body 1 and fixed in the six-terminal base 21, the six-terminal base 21 is adopted for distribution lines, outdoor cable cores are connected to the incoming line wiring terminals of the six-terminal base 21, the outgoing line wiring terminals of the six-terminal base 21 are connected to the output end of the isolation transformer 22, and indoor cable cores are connected to the input end of the isolation transformer 22.
The lightning protection modules 2 are arranged in a plurality of arrays, and include a plurality of rows of lightning protection modules 2 and a plurality of columns of lightning protection modules 2. The lightning protection module 2 is fixed in the six-terminal base 21, and at least two isolation transformers 22 are arranged on the lightning protection module and used for shielding and isolating indoor and outdoor circuits. Two isolation transformers 22 are placed one laterally and the other longitudinally. The placement direction of the isolation transformer 22 is different for each lightning protection module 2, and the specific placement direction is determined according to specific situations and is not limited herein.
The first grounding copper strip comprises a transverse grounding copper strip 5 and a longitudinal grounding copper strip 6, the transverse grounding copper strip 5 is arranged on the six-terminal base corresponding to each row of lightning protection modules 2 and is connected with all the six-terminal bases of one row of lightning protection modules 2, and the longitudinal grounding copper strip 6 is arranged in the wire inlet groove on one side of each row of lightning protection modules; the other side of each row of lightning protection modules 2 is provided with a shielding grounding copper bar 7 for the core wire shielding grounding copper bar, and each shielding grounding copper bar 7 is connected through a bus bar 8 arranged at the bottom of the lightning protection module 2.
The collector 3 is arranged below the lightning protection module 2 and is used for monitoring the overall operation condition of the lightning protection cabinet; the collector 3 comprises a current transformer 31, a lightning current sensor 32, a disconnection card 33 and a power supply 34, wherein the current transformer 31, the lightning current sensor 32 and the disconnection card 33 are respectively connected with the power supply 34, and the short connection card is connected with the current transformer 31 and the lightning current sensor 32. Temperature in the lightning protection cabinet is set through the current transformer 31 and the lightning current sensor 32, and when the temperature exceeds a threshold value, an alarm is given out so that an operator can know the condition of the cable in time and find and check faults. The collector 3 is connected with a display screen 11 arranged on the cabinet body 1, as shown in fig. 2, the display screen 11 is a dot matrix screen, and can set, display and inquire technical parameters, alarm information and the like. The information that the harvester 3 will monitor the collection uploads through RS485 interface or RJ45 ethernet interface, makes things convenient for remote monitoring.
As shown in fig. 3, the end forming chamber 4 is a closed structure, and the end forming chamber 4 is arranged at the bottom of the cabinet body 1, below the collecting machine 3, and is used for being connected with outdoor equipment. The end chamber 4 comprises a second grounded copper bar 41, an end box 42 and an arc isolation box 43, the input end of the end box 42 is connected to the second grounded copper bar 41, and the output end of the end box 42 is connected to the arc isolation box 43. The second grounding copper strip 41 is used for shielding, grounding and collecting copper strips of a steel belt and an aluminum sheath after the cable is finished. The terminating box 42 is used for secondary terminating of the cable, and the arc isolation box 43 is used for preventing spark arcs generated by large current from damaging other cables. Temperature control fire extinguishers 9 are arranged in the cabinet body 1 and the end forming chamber 4 and used for automatically extinguishing fire, as shown in figures 3 and 4. The bottom of the cabinet body 1 is provided with a safety copper bar 10, as shown in fig. 5.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the utility model without departing from the spirit and scope of the utility model, which is to be covered by the claims. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a cable becomes end lightning protection cabinet based on isolation transformer which characterized in that includes: the lightning protection device comprises a cabinet body, a lightning protection module, a first grounding copper strip, a collector, an end forming chamber and an isolation transformer;
the cabinet body is used for placing the lightning protection module, the first grounding copper strip, the collector, the terminating chamber and the isolation transformer;
the lightning protection modules are arranged at the upper part of the cabinet body, the lightning protection modules are fixed in the six-terminal base, and the lightning protection modules are arranged in an array manner; each lightning protection module is provided with at least two isolation transformers, and the isolation transformers are connected with the lightning protection modules;
the first grounding copper strip comprises a transverse grounding copper strip and a longitudinal grounding copper strip, the transverse grounding copper strip is arranged on the six-terminal base corresponding to each row of lightning protection modules and connected with all the six-terminal bases of one row of lightning protection modules, and the longitudinal grounding copper strip is arranged in the wire inlet grooves on one side of each row of the lightning protection modules;
the collector is arranged below the lightning protection module and used for monitoring the overall operation condition of the lightning protection cabinet;
the end forming chamber is arranged at the bottom of the cabinet body and is used for being connected with outdoor equipment.
2. The isolation transformer based lightning protection cabinet for cable terminations according to claim 1, wherein one of the two isolation transformers is disposed laterally and the other is disposed longitudinally.
3. The isolation transformer based cable ending lightning protection cabinet according to claim 1, wherein the lightning protection module is a surge protector capable of performing lightning protection on a cable core and capable of performing longitudinal, transverse or longitudinal and transverse protection on the cable core, the surge protector is connected to the cable core of a protected device through the lightning protection leading terminal of the six-terminal base, and the outgoing line leading terminal of the six-terminal base is connected with an indoor device.
4. The insulation transformer-based cable termination lightning protection cabinet according to any one of claims 1 to 3, wherein the other side of each row of the lightning protection modules is provided with a shielding grounding copper bar, and each shielding grounding copper bar is connected through a bus bar arranged at the bottom of the lightning protection module.
5. The lightning protection cabinet for cable terminations based on isolation transformers according to any one of claims 1 to 3, wherein the collector comprises a collector main board, a current transformer, a lightning current sensor, a disconnection card and a power supply, and the current transformer, the lightning current sensor and the disconnection card are respectively connected with the collector main board.
6. The isolation transformer-based lightning protection cabinet for cable terminations according to claim 5, wherein the harvester is connected to a display screen disposed on the cabinet body.
7. The isolation transformer based cable ending lightning protection cabinet according to any one of claims 1 to 3, wherein the ending chamber comprises a second grounding copper strip, an ending box and an arc isolation box, a grounding terminal of the ending box is connected with the second grounding copper strip, and the arc isolation box is arranged outside the ending box.
8. The lightning protection cabinet for the cable terminations based on an isolation transformer as claimed in any one of claims 1-3, wherein a temperature controlled fire extinguisher is arranged in the cabinet body and in the termination chamber.
9. The isolation transformer based cable termination lightning protection cabinet according to any one of claims 1 to 3, wherein a safety ground copper bar is arranged at the bottom of the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123035529.1U CN216699498U (en) | 2021-12-06 | 2021-12-06 | Cable one-end lightning protection cabinet based on isolation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123035529.1U CN216699498U (en) | 2021-12-06 | 2021-12-06 | Cable one-end lightning protection cabinet based on isolation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216699498U true CN216699498U (en) | 2022-06-07 |
Family
ID=81837770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123035529.1U Active CN216699498U (en) | 2021-12-06 | 2021-12-06 | Cable one-end lightning protection cabinet based on isolation transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216699498U (en) |
-
2021
- 2021-12-06 CN CN202123035529.1U patent/CN216699498U/en active Active
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