CN213071818U - High tension switchgear with circuit protection function - Google Patents
High tension switchgear with circuit protection function Download PDFInfo
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- CN213071818U CN213071818U CN202022172008.XU CN202022172008U CN213071818U CN 213071818 U CN213071818 U CN 213071818U CN 202022172008 U CN202022172008 U CN 202022172008U CN 213071818 U CN213071818 U CN 213071818U
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Abstract
The utility model discloses a high-voltage switch cabinet with circuit protection function, which comprises a cabinet body; a vacuum circuit breaker is arranged in the cabinet body and connected with external equipment through a first wiring bar, a current transformer is arranged on the left side of the vacuum circuit breaker and connected with the vacuum circuit breaker through a second wiring bar; an isolating switch is arranged below the current transformer and connected with the current transformer through a third wiring row; an earthing switch is arranged below the isolating switch and is connected with the isolating switch through a fourth wiring row; a voltage transformer is arranged on the right side of the grounding switch and is connected with the isolating switch through a fourth wiring row; a lightning arrester connected with the fourth wiring bank is arranged on the right side of the voltage transformer; and an insulator used for connecting a fourth wiring bar is arranged below the vacuum circuit breaker, and the fourth wiring bar is used for connecting a high-voltage incoming cable. The utility model discloses a lightning arrester plays a guard action to the circuit, effectively avoids equipment to damage because of circuit trouble.
Description
Technical Field
The utility model relates to a cubical switchboard technical field especially relates to a high tension switchgear with circuit protection function.
Background
Along with the ever-increasing coverage area of the power transmission pipe network, in order to ensure the stability of power transmission, a certain number of switch cabinets must be arranged in the field to maintain the normal work of the power transmission pipe network. At present, a switch cabinet comprises a low-voltage switch cabinet and a high-voltage switch cabinet, and the high-voltage switch cabinet is easy to damage equipment due to circuit overload or short circuit in the working process, so that economic loss is caused, and therefore, a high-voltage switch cabinet with a circuit protection function is needed.
Based on this, the utility model discloses and research and development.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a high tension switchgear with circuit protection function.
The technical scheme of the utility model as follows:
a high tension switchgear with circuit protection function includes: the high-voltage cabinet comprises a high-voltage cabinet body, a vacuum circuit breaker arranged in the high-voltage cabinet body, a current transformer arranged in the high-voltage cabinet body on the left side of the vacuum circuit breaker, an isolating switch arranged in the high-voltage cabinet body below the current transformer, and a voltage transformer arranged in the high-voltage cabinet body below the isolating switch; the vacuum circuit breaker is provided with a first wiring row for connecting external equipment, and a second wiring row for connecting the current transformer is also arranged below the first wiring row; a third wiring row used for connecting the isolating switch is arranged below the current transformer; a fourth wiring bar used for connecting the voltage transformer is arranged below the isolating switch; an insulator is arranged below the vacuum circuit breaker of the high-voltage cabinet body, the fourth wiring bar is connected below the insulator, and the fourth wiring bar is also used for connecting a high-voltage incoming cable; a grounding switch is further arranged between the isolating switch and the voltage transformer of the high-voltage cabinet body; the grounding switch is electrically connected with the isolating switch through the fourth wiring bar and is used for realizing grounding operation; the high-voltage cabinet body in the voltage transformer right side still is equipped with the arrester, the arrester with fourth connection row electric connection plays a guard action to the circuit.
Furthermore, a high-voltage fuse is arranged on the voltage transformer; and one end of the high-voltage fuse is connected to the voltage transformer, and the other end of the high-voltage fuse is connected to the fourth wiring bar, so that the voltage transformer is subjected to overload and short-circuit protection.
Further, the first wiring bar is a copper bar.
Further, the second wiring row is a copper bar.
Further, the third wiring row is a copper bar.
Further, the fourth wiring bar is a copper bar.
By adopting the scheme, the utility model discloses following beneficial effect has:
1. the utility model realizes the on-off of the control circuit through the isolating switch, and plays a role of protecting the circuit through the lightning arrester, thereby effectively avoiding the equipment from being damaged due to circuit faults, having exquisite structure and being worth of social and vigorous popularization;
2. the application of the insulator in the optimized scheme effectively improves the creepage distance of the equipment;
3. the application of the high-voltage fuse in the optimized scheme can effectively protect the voltage transformer from overload and short circuit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Referring to fig. 1, the utility model provides a high-voltage switch cabinet with circuit protection function, including the high-voltage cabinet body 1, arrange in vacuum circuit breaker 2 in the high-voltage cabinet body 1, arrange in current transformer 3 in the high-voltage cabinet body 1 on the left of vacuum circuit breaker 2, arrange in isolator 4 in the high-voltage cabinet body 1 below current transformer 3, and arrange in voltage transformer 5 in the high-voltage cabinet body 1 below isolator 4; the vacuum circuit breaker 2 is provided with a first wiring row 6 for connecting external equipment, and the vacuum circuit breaker 2 is electrically connected with the external equipment through the first wiring row 6 during application; the vacuum circuit breaker 2 is further provided with a second wiring row 7 used for connecting the current transformer 3 below the first wiring row 6, and the vacuum circuit breaker 2 is electrically connected with the current transformer 3 through the second wiring row 7 during application; a third wiring bar 8 for connecting the isolating switch 4 is arranged below the current transformer 3, and the current transformer 3 is electrically connected with the isolating switch 4 through the third wiring bar 8 during application; a fourth wiring bar 9 for connecting the voltage transformer 5 is arranged below the isolating switch 4, and the isolating switch 4 is electrically connected with the voltage transformer 5 through the fourth wiring bar 9 during application; an insulator 10 is arranged below the vacuum circuit breaker 2 of the high-voltage cabinet body 1, the fourth wiring bar 9 is connected below the insulator 10, the fourth wiring bar 9 is used for increasing the creepage distance through the insulator 10, and the fourth wiring bar 9 is also used for connecting a high-voltage incoming cable;
the high-voltage cabinet body 1 is further provided with a grounding switch 11 between the isolating switch 4 and the voltage transformer 5; the grounding switch 11 is electrically connected with the isolating switch 4 through the fourth wiring bank 9, and the grounding switch 11 is used for realizing grounding operation;
the high-voltage cabinet body 1 in voltage transformer 5 right side still is equipped with arrester 12, arrester 12 with fourth connection row 9 electric connection plays a guard action to the circuit.
In this embodiment, a high-voltage fuse 13 is disposed on the voltage transformer 5; and one end of the high-voltage fuse 13 is connected to the voltage transformer 5, and the other end of the high-voltage fuse is connected to the fourth wiring bar 9, so that overload and short-circuit protection is realized on the voltage transformer 5.
In this embodiment, the first wiring block 6, the second wiring block 7, the third wiring block 8 and the fourth wiring block 9 are all copper bars.
The utility model discloses working process and principle as follows: after the power is switched on, the grounding switch 11 is firstly switched off, then the isolating switch 4 is switched on, at the moment, the vacuum circuit breaker 2 can execute the switching-on action, and therefore the high-voltage switch cabinet starts to work.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model realizes the on-off of the control circuit through the isolating switch, and plays a role of protecting the circuit through the lightning arrester, thereby effectively avoiding the equipment from being damaged due to circuit faults, having exquisite structure and being worth of social and vigorous popularization;
2. the application of the insulator in the optimized scheme effectively improves the creepage distance of the equipment;
3. the application of the high-voltage fuse in the optimized scheme can effectively protect the voltage transformer from overload and short circuit.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a high tension switchgear with circuit protection function which characterized in that includes: the high-voltage cabinet comprises a high-voltage cabinet body, a vacuum circuit breaker arranged in the high-voltage cabinet body, a current transformer arranged in the high-voltage cabinet body on the left side of the vacuum circuit breaker, an isolating switch arranged in the high-voltage cabinet body below the current transformer, and a voltage transformer arranged in the high-voltage cabinet body below the isolating switch; the vacuum circuit breaker is provided with a first wiring row for connecting external equipment, and a second wiring row for connecting the current transformer is also arranged below the first wiring row; a third wiring row used for connecting the isolating switch is arranged below the current transformer; a fourth wiring bar used for connecting the voltage transformer is arranged below the isolating switch; an insulator is arranged below the vacuum circuit breaker of the high-voltage cabinet body, the fourth wiring bar is connected below the insulator, and the fourth wiring bar is also used for connecting a high-voltage incoming cable; a grounding switch is further arranged between the isolating switch and the voltage transformer of the high-voltage cabinet body; the grounding switch is electrically connected with the isolating switch through the fourth wiring bar and is used for realizing grounding operation; the high-voltage cabinet body in the voltage transformer right side still is equipped with the arrester, the arrester with fourth connection row electric connection plays a guard action to the circuit.
2. The high-voltage switch cabinet with the circuit protection function according to claim 1, wherein a high-voltage fuse is arranged on the voltage transformer; and one end of the high-voltage fuse is connected to the voltage transformer, and the other end of the high-voltage fuse is connected to the fourth wiring bar, so that the voltage transformer is subjected to overload and short-circuit protection.
3. The high voltage switch cabinet with circuit protection function according to claim 1, wherein said first wiring row is a copper row.
4. The high voltage switch cabinet with circuit protection function according to claim 1, wherein said second wiring row is a copper row.
5. The high voltage switch cabinet with circuit protection function according to claim 1, wherein said third wiring row is a copper row.
6. The high voltage switch cabinet with circuit protection function according to claim 1, wherein said fourth row of wires is a copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022172008.XU CN213071818U (en) | 2020-09-28 | 2020-09-28 | High tension switchgear with circuit protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022172008.XU CN213071818U (en) | 2020-09-28 | 2020-09-28 | High tension switchgear with circuit protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213071818U true CN213071818U (en) | 2021-04-27 |
Family
ID=75560855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022172008.XU Active CN213071818U (en) | 2020-09-28 | 2020-09-28 | High tension switchgear with circuit protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213071818U (en) |
-
2020
- 2020-09-28 CN CN202022172008.XU patent/CN213071818U/en active Active
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