CN113922219A - Method for preventing adjacent high-voltage switch cabinets from mistakenly tripping - Google Patents
Method for preventing adjacent high-voltage switch cabinets from mistakenly tripping Download PDFInfo
- Publication number
- CN113922219A CN113922219A CN202111268622.9A CN202111268622A CN113922219A CN 113922219 A CN113922219 A CN 113922219A CN 202111268622 A CN202111268622 A CN 202111268622A CN 113922219 A CN113922219 A CN 113922219A
- Authority
- CN
- China
- Prior art keywords
- switch cabinet
- voltage switch
- copper bar
- grounding
- current
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
Abstract
The invention discloses a method for preventing adjacent high-voltage switch cabinets from mistakenly tripping, which comprises the following steps: arranging cable trench flat iron underground at the high-voltage switch cabinet; a flat grounding copper bar is arranged between the high-voltage switch cabinet and the cable trench flat iron, one end of the grounding copper bar is connected with a grounding terminal of the high-voltage switch cabinet, and the other end of the grounding copper bar is connected with the cable trench flat iron; the grounding copper bar is used for reducing the skin effect of current. The applicant finds that the instant of switching on the high-voltage switch cabinet can cause the adjacent switch cabinet to generate induction current, and the current cannot be quickly transmitted to the ground in a short time due to the skin effect of the current, so that the adjacent switch cabinet is tripped by mistake. The invention increases the surface area of the grounding wire by changing the cross section form of the grounding wire, thereby reducing the skin effect of the conducting wire, leading the induced current out in time and well solving the problem that the switching-on operation of the high-voltage switch cabinet causes the influence of false tripping on the adjacent switch cabinet.
Description
Technical Field
The invention relates to a method for preventing adjacent high-voltage switch cabinets from tripping by mistake, belonging to the technical field of circuit protection.
Background
At present, when the applicant uses a high-voltage switch cabinet, the following problems are found to exist: when the high-voltage switch cabinet is switched on, the adjacent switch cabinet can be tripped by mistake sometimes. How to reduce the influence of the high-voltage switch cabinet on the adjacent switch cabinet is a technical problem to be solved urgently.
Disclosure of Invention
The invention provides a method for preventing adjacent high-voltage switch cabinets from being tripped by mistake, which is used for solving the problem that the switching-on operation of the high-voltage switch cabinets causes the influence of the false tripping on the adjacent switch cabinets.
In order to solve the technical problems, the invention comprises the following technical scheme:
a method of preventing false tripping of an adjacent high voltage switchgear, comprising:
arranging cable trench flat iron underground at the high-voltage switch cabinet;
a flat grounding copper bar is arranged between the high-voltage switch cabinet and the cable trench flat iron, one end of the grounding copper bar is connected with a grounding terminal of the high-voltage switch cabinet, and the other end of the grounding copper bar is connected with the cable trench flat iron; the grounding copper bar is used for reducing the skin effect of current.
Further, the length-width ratio of the cross section of the grounding copper bar is greater than 5: 1.
The invention has the difficulties that the problems are discovered and the reasons for the problems are found, the existing high-voltage switch cabinet adopts a wire with a circular section between the grounding terminal and the cable trench flat iron, the applicant discovers that the instant of switching on the high-voltage switch cabinet can cause the adjacent switch cabinets to generate induction current, and the current cannot be quickly transmitted to the ground in a short time due to the skin effect of the current, thereby causing the false tripping of the adjacent switch cabinets. The invention increases the surface area of the grounding wire by changing the cross section form of the grounding wire, thereby reducing the skin effect of the conducting wire, leading out the induced current in time, and well solving the problem that the switching-on operation of the high-voltage switch cabinet causes the influence of false tripping on the adjacent switch cabinet by adopting a very simple technical means.
Drawings
Fig. 1 is a schematic diagram of the connection between the ground copper bar and the high-voltage switch cabinet in the present invention.
The numbers in the figures are as follows:
1-high voltage switch cabinet; 2-a grounding copper bar; 21-a first end; 22-second end.
Detailed Description
The method for preventing the adjacent high-voltage switch cabinet from being tripped by mistake is further described in detail by combining the attached drawings and the specific embodiment. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
The embodiment provides a method for preventing adjacent high-voltage switch cabinets from being tripped mistakenly, which comprises the following steps:
arranging cable trench flat iron underground at the high-voltage switch cabinet;
a flat grounding copper bar is arranged between the high-voltage switch cabinet and the cable trench flat iron, one end of the grounding copper bar is connected with a grounding terminal of the high-voltage switch cabinet, and the other end of the grounding copper bar is connected with the cable trench flat iron; the grounding copper bar is used for reducing the skin effect of current.
As shown in fig. 1, the ground copper bar 2 includes a first end 21 and a second end 22, the first end 21 is used for being connected with a ground terminal of the high-voltage switch cabinet 1, and the second end 22 is connected with a cable trench flat iron.
It should be noted that, at present, a conducting wire with a circular cross section is adopted between a grounding terminal of a high-voltage switch cabinet and a cable trench flat iron, and the applicant finds that at the moment of switching on the high-voltage switch cabinet, an induced current is generated in an adjacent switch cabinet, and the current cannot be rapidly transmitted to the ground in a short time due to the skin effect of the current, so that the adjacent switch cabinet is tripped by mistake. The invention increases the surface area of the grounding wire by changing the cross section form of the grounding wire, thereby reducing the skin effect of the conducting wire and leading the induced current out in time. The invention has the difficulty that the technical problem is found out and the reason for the problem is found, so that the technical problem is solved simply, but the problem that the switching-on operation of the high-voltage switch cabinet causes the influence of the false tripping on the adjacent switch cabinet is well solved.
Further, the length-width ratio of the cross section of the grounding copper bar 2 is larger than 5:1, so that the induction current can be more quickly transmitted to the ground, and the adjacent high-voltage cabinets are prevented from being tripped by mistake.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (2)
1. A method for preventing adjacent high-voltage switch cabinets from being tripped by mistake is characterized by comprising the following steps:
arranging cable trench flat iron underground at the high-voltage switch cabinet;
a flat grounding copper bar is arranged between the high-voltage switch cabinet and the cable trench flat iron, one end of the grounding copper bar is connected with a grounding terminal of the high-voltage switch cabinet, and the other end of the grounding copper bar is connected with the cable trench flat iron; the grounding copper bar is used for reducing the skin effect of current.
2. The method for preventing false tripping of an adjacent high-voltage switch cabinet according to claim 1, wherein the length-width ratio of the cross section of the grounding copper bar is greater than 5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111268622.9A CN113922219A (en) | 2021-10-29 | 2021-10-29 | Method for preventing adjacent high-voltage switch cabinets from mistakenly tripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111268622.9A CN113922219A (en) | 2021-10-29 | 2021-10-29 | Method for preventing adjacent high-voltage switch cabinets from mistakenly tripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113922219A true CN113922219A (en) | 2022-01-11 |
Family
ID=79243542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111268622.9A Pending CN113922219A (en) | 2021-10-29 | 2021-10-29 | Method for preventing adjacent high-voltage switch cabinets from mistakenly tripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113922219A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201719733U (en) * | 2010-07-27 | 2011-01-26 | 上海埃波托斯消防装备有限公司 | Signal starting device |
| CN203056567U (en) * | 2012-12-07 | 2013-07-10 | 广东明家科技股份有限公司 | SPD downlead ground line connection structure |
| CN203367797U (en) * | 2013-07-29 | 2013-12-25 | 江苏南瑞帕威尔电气有限公司 | Intelligent distribution automatic terminal box |
| CN104734022A (en) * | 2013-12-19 | 2015-06-24 | 陕西银河网电科技有限公司 | Low-voltage power distribution cabinet |
| CN104993387A (en) * | 2015-06-05 | 2015-10-21 | 国家电网公司 | Grounding method for power distribution devices in power distribution station |
| CN205385286U (en) * | 2015-12-31 | 2016-07-13 | 重庆旗能电铝有限公司 | Rectifier unit rectification cabinet is prevented mistake and is jumped protection device |
| CN205509047U (en) * | 2016-04-05 | 2016-08-24 | 国家电网公司 | Transition fastener of high pressure overhead line arrester |
| CN107170630A (en) * | 2016-03-08 | 2017-09-15 | 湖南长高高压开关有限公司 | Major loop is connected with arc-chutes with the extra-high-voltage earthing switch of opening and closing induction current |
| CN107765146A (en) * | 2017-10-02 | 2018-03-06 | 国网山西省电力公司电力科学研究院 | The insulating properties on-site detecting device and detection method of low-pressure side bus encapsulating material |
| CN212114035U (en) * | 2019-12-20 | 2020-12-08 | 中广核中科海维科技发展有限公司 | Electron accelerator earthing device |
-
2021
- 2021-10-29 CN CN202111268622.9A patent/CN113922219A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201719733U (en) * | 2010-07-27 | 2011-01-26 | 上海埃波托斯消防装备有限公司 | Signal starting device |
| CN203056567U (en) * | 2012-12-07 | 2013-07-10 | 广东明家科技股份有限公司 | SPD downlead ground line connection structure |
| CN203367797U (en) * | 2013-07-29 | 2013-12-25 | 江苏南瑞帕威尔电气有限公司 | Intelligent distribution automatic terminal box |
| CN104734022A (en) * | 2013-12-19 | 2015-06-24 | 陕西银河网电科技有限公司 | Low-voltage power distribution cabinet |
| CN104993387A (en) * | 2015-06-05 | 2015-10-21 | 国家电网公司 | Grounding method for power distribution devices in power distribution station |
| CN205385286U (en) * | 2015-12-31 | 2016-07-13 | 重庆旗能电铝有限公司 | Rectifier unit rectification cabinet is prevented mistake and is jumped protection device |
| CN107170630A (en) * | 2016-03-08 | 2017-09-15 | 湖南长高高压开关有限公司 | Major loop is connected with arc-chutes with the extra-high-voltage earthing switch of opening and closing induction current |
| CN205509047U (en) * | 2016-04-05 | 2016-08-24 | 国家电网公司 | Transition fastener of high pressure overhead line arrester |
| CN107765146A (en) * | 2017-10-02 | 2018-03-06 | 国网山西省电力公司电力科学研究院 | The insulating properties on-site detecting device and detection method of low-pressure side bus encapsulating material |
| CN212114035U (en) * | 2019-12-20 | 2020-12-08 | 中广核中科海维科技发展有限公司 | Electron accelerator earthing device |
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