CN110707578A - Wire spring type pressing plate for marking color on covered area of base - Google Patents
Wire spring type pressing plate for marking color on covered area of base Download PDFInfo
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- CN110707578A CN110707578A CN201911118534.3A CN201911118534A CN110707578A CN 110707578 A CN110707578 A CN 110707578A CN 201911118534 A CN201911118534 A CN 201911118534A CN 110707578 A CN110707578 A CN 110707578A
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- pressing plate
- state
- wire spring
- spring type
- base
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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
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention provides a wire spring type pressing plate for marking colors on a covered area of a base, which is characterized in that the area covered by the pressing plate when the wire spring type pressing plate is in the default switching state on the base is marked with different colors, so that whether the wire spring type pressing plate is in the default switching state or not is judged to be converted into the state that whether the pressing plate area of a secondary screen cabinet is checked to be different colors or not, the working strength of the station operation and maintenance personnel of a power enterprise for checking the pressing plate state on the secondary screen cabinet is greatly reduced, and the possibility of power grid, equipment and personal injury accidents caused by the incorrect switching state of the secondary pressing plate is reduced.
Description
Technical Field
The invention belongs to the technical field of station operation and maintenance of power systems, and particularly relates to a wire spring type pressing plate with colors marked in a covered area of a pressing plate base and a using method thereof.
Background
A large number of secondary equipment screen cabinets for measuring and controlling primary equipment and providing relay protection exist in an electric power system, and the switching of a pressing plate (known as a connecting sheet) on the secondary equipment screen cabinet is generally ordered by a power grid dispatcher to a plant station operation and maintenance personnel, and then the plant station operation and maintenance personnel perform actual switching operation. Although a strict and strict electrical operation system is specified in section 7.3 of the current national standard safety regulation (GB 26860-2011 electric power safety work regulation power plant and substation part), correct operation is guaranteed, in reality, because operators are careful, patience or lack of responsibility, the situation of mistaken switching-in and switching-out of the pressure plate still happens occasionally, secondary equipment is mistakenly operated or refused to operate, even malignant accidents occur, the safe, economical and stable operation of a power grid is endangered, and therefore the fact that the switching-in and switching-out of the pressure plate is guaranteed is the problem to be solved urgently in the field of electric power operation.
The pressing plates are enabled to be put on or off correctly, and the condition is equivalent to the condition that each pressing plate is in, namely the condition required by the dispatching order issued last time by the power grid dispatcher. In reality, a pressure plate of a secondary equipment screen cabinet of a power system station has a default switching state, and the default state is determined by operation and maintenance personnel of each station according to a secondary equipment fixed value list issued by a power grid dispatching unit. The pressing plate which is in the default throwing and withdrawing state and is thrown is called a normally thrown pressing plate, and the pressing plate which is in the default throwing and withdrawing state and is withdrawn is called a normally withdrawn pressing plate. In reality, most of the pressing plates are in the default on-off state most of the time, and few of the pressing plates are in the non-default on-off state less of the time. Generally, operation and maintenance personnel are required to check the state of the pressing plate regularly by power enterprises, for example, the article 6.5.5 in the enterprise management system document "operating management standard Q/CSG211021-2011 of 110kV and above transformer substations" of southern Power grid Limited liability company in China, and other power generation enterprises and power grid enterprises have similar regulations. Because most of the time of the above-mentioned most of the pressing plates is in the default on-off state, and less of the time of the less of the pressing plates is in the non-default on-off state, when checking the state of the pressing plates, the operation and maintenance personnel convert the problem into checking whether the pressing plates are in the default on-off state, and adopt some technical schemes to help simplify and judge whether the pressing plates are in the default on-off state.
The electric secondary pressure plate is structurally divided into three categories:
1. wire spring type (mostly, the standard documents of the power grid company are called wire spring type, and some manufacturers call plug-in type)
2. Discrete type
Other patterns (rare)
For wire spring type pressing plates, on the large premise of not adding additional monitoring device equipment, the existing scheme for helping to judge whether the pressing plates are in the default switching state mainly comprises the following two steps:
in the prior art, in the technical scheme 1, colored label paper is embedded in the pressing plate or the pressing plate is directly pasted with the colored label paper, and the default throwing and withdrawing state of the pressing plate is identified by the color of the embedded or pasted label paper. For example, the scheme is adopted by a power supply company which belongs to the south-west province of Hubei province of the national grid company, and the company provides that a pressure plate is usually marked by red label paper and a pressure plate is usually marked by green label paper. When the operation and maintenance personnel check the state of the pressing plate, the flow for checking the pressing plate of the secondary equipment adopting the scheme is shown in figure 1.
In the prior art, in the scheme 2, a piece of heterochromatic label paper with a size smaller than that of the pressing plate body is pasted on the pressing plate to mark the pressing plate as a normal-projection pressing plate. Some power grid enterprises stipulate the color of the label paper embedded in the wire spring type pressing plate, for example, the 5.3.4.6 and 5.3.4.7 article of the south power grid limited responsibility company enterprise standard document south power grid relay protection general technical specification Q/CSG 110010 plus 2011 stipulate that the color of the label paper embedded in the wire spring type pressing plate is red and yellow (5.3.4.6 article of original text: red and yellow respectively recommend red and yellow R02 vermilion and Y08 deep yellow in the national standard GSB05-1426 plus 2001), and the definition of the different color label is the color except the color of the label paper embedded in the pressing plate stipulated by the enterprises. For example, the scheme is adopted by a certain power supply bureau in south of the autonomous region of the Guangxi Zhuang nationality under the limited responsibility company of the power grid in the south of China, and the scheme adopted by the bureau is that a small piece of circular blue label paper is stuck on the pressing plate bodies of all the normally-thrown pressing plates. The checking flow of the pressing plate of the secondary equipment adopting the scheme is shown in figure 2.
Both of the above solutions have simplified the platen check work. Although the above prior art schemes have simplified the work, since the number of stations of the whole power system is large, and the number of the pressure plates required to periodically check the state is huge, a more optimized and concise scheme is required to further reduce the complexity of the checking work.
Disclosure of Invention
In order to further reduce the complexity of the pressing plate state checking process compared with the prior art, the invention provides the wire spring type pressing plate for marking the color on the covered area of the pressing plate base and the use method thereof.
The judgment basis of the beneficial effects is as follows: the flow chart illustrating the use of the solution of the present invention has the number of square process modules and diamond decision modules in fig. 3 much smaller than the number of square process modules and diamond decision modules in fig. 1 and 2 of the flow chart comparing the prior art solution, and the decision modules in the solution of the present invention have much lower difficulty in performing the decision than the corresponding parts comparing the prior art solution.
The technical scheme adopted by the invention for solving the technical problems is as follows:
1. the covered area A is defined in such a way that when the linear spring type pressing plate is in the correct position of the default throwing and withdrawing state, the pressing plate (connecting piece) covers or hides the area on the front surface of the pressing plate base. The covered area a is divided into a covered area a1 when the platen is in the default throw-in state and a covered area a2 when the platen is in the default throw-out state. The specific locations of A1 and A2 are shown in FIG. 4 and the description of the figures.
2. Marking the covered area A1 of the wire spring type pressure plate base as a different color, and then applying the different color to a normal projection pressure plate in a secondary screen cabinet; marking the covered area A2 of the wire spring type pressure plate base as a different color, and then applying the different color to a constant-retreat pressure plate in a secondary screen cabinet; the definition of heterochromatic is a color that is visually significantly different from the color of the paint used for the cabinet, the color of the base of the press plate, and the color of the label paper used for the press plate.
3. The using method comprises the following steps: in the single secondary equipment screen cabinet adopting the wire spring type pressing plate, whether the pressing plate area of the screen cabinet has visible heterochrosis is judged and identified, and if the pressing plate area has visible heterochrosis, the pressing plate is judged to be in a non-default switching state; if not, the pressing plates are judged to be all in the default throwing and retreating state. The platen verification process of the inventive arrangements is shown in figure 3.
The invention has the beneficial effects that:
comparing fig. 3 with fig. 1 and fig. 2, compared with the prior art, the technical scheme of the invention remarkably simplifies the flow of judging whether the pressing plate is in the default on-off state, obviously reduces the operation intensity of corresponding work and improves the operation efficiency.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a flowchart of the platen collation work when the prior art scheme 1 described in the background art is employed.
Fig. 2 is a flowchart of the platen collation work when the prior art solution 2 described in the background art is employed.
Fig. 3 is a flow chart of platen verification operation when the technical solution of the present invention is employed.
Fig. 4 is a front view of a wire spring platen base.
In the context of figure 4, it is shown,
1 is a circular area drawn by a solid line, which is a hole into which a pin at the upper end of the pressure plate is inserted when the pressure plate is in a withdrawing state;
2 is a difference set between an area which is enclosed by a semicircle drawn by a dotted line and a rectangle without a long edge drawn by the dotted line and the area 1, and the area 2 is covered by the upper half part of the pressing plate when the pressing plate is in a withdrawing state;
3 is a circular area drawn by a solid line, which is a hole into which a contact pin at the lower end of the pressure plate is inserted when the pressure plate is in a withdrawing state;
4 is a difference set of a region and a region 3 which are jointly surrounded by a semicircle drawn by a dotted line and a rectangle without a long edge drawn by the dotted line, and the region 4 is covered by the lower half part of the pressing plate when the pressing plate is in a withdrawing state;
5 is a circular area drawn by a solid line, which is a hole into which a pin at the upper end of the pressing plate is inserted when the pressing plate is in the input state;
6 is a difference set between a trapezoidal area drawn by a dotted line and the area 5, and the area 6 is covered by the upper half part of the pressing plate when the pressing plate is in a throwing state;
7 is a circular area drawn by a solid line, which is a hole into which a pin at the lower end of the pressing plate is inserted when the pressing plate is in the input state;
and 8 is a difference between a trapezoidal area drawn by a dotted line and the area 7, and the area 8 is covered by the lower half part of the pressing plate when the pressing plate is in the input state.
The covered area a in the present embodiment includes the areas 2, 4, 6, and 8 in fig. 4.
The covered area a1 in the present embodiment includes areas 6 and 8 in fig. 4; the covered area a2 in the present embodiment includes the areas 2 and 4 in fig. 4.
Detailed Description
Selecting different colors according to the power grid enterprise standard and the actual situation of an implementation field, wherein generally, the paint color used by the screen cabinet is ice gray or similar color; the color of the pressure plate base is light camel color or similar color; the label paper used on the pressing plate is generally red and yellow; the chosen shade should differ significantly from the aforementioned ice gray, light camel, yellow, red, and preferably, the shade may be selected to be blue.
The front surface of the wire spring type pressing plate base shown in fig. 4 is marked with different colors on part or all of the area 6 and the area 8 of the pressing plate base, the marking process can be adopted, including but not limited to sticker, painting, embedding and the like, and the pressing plate processed by the method is applied to a normally projected pressing plate on a secondary screen cabinet.
The front surface of the wire spring type pressing plate base shown in fig. 4 is marked with different colors on part or all of the area 2 and the area 4 of the pressing plate base, the marking process can be adopted, including but not limited to sticker, painting, embedding and the like, and the pressing plate processed by the method is applied to a constant-return pressing plate on a secondary screen cabinet.
The process of checking the pressing plate of the secondary screen cabinet adopting the pressing plate implementing the technical scheme of the invention is shown in figure 3.
It is within the scope of the appended claims to indicate that all or a portion of the a1 region in the drawing description or the a2 region in the drawing description is labeled with different colors as long as the technical effect produced by the color difference in use is the same as the technical effect of the invention.
Claims (3)
1. A wire spring type pressing plate is characterized in that except for the normal structure and the functions which can be completed of the conventional wire spring type pressing plate: when the device is in the default on-off state, the area A covered by the pressing plate on the pressing plate base is marked with different colors.
2. A heterochromatic light as claimed in claim 1, wherein: the different color is defined as the color which is obviously different from the secondary screen cabinet paint color, the pressing plate base color and the pressing plate label color determined according to the national, industrial and enterprise standard or the actual situation on site in the subjective vision and objective hue value.
3. The covered area a of claim 1, wherein: zone a is divided into zone a1 on the platen base that is covered by the platen when the normal-throw platen is in its default-throw state and zone a2 on the platen base that is covered by the platen when the normal-throw platen is in its default-throw state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118534.3A CN110707578B (en) | 2019-11-15 | 2019-11-15 | Wire spring type pressing plate for marking color on covered area of base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118534.3A CN110707578B (en) | 2019-11-15 | 2019-11-15 | Wire spring type pressing plate for marking color on covered area of base |
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| Publication Number | Publication Date |
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| CN110707578A true CN110707578A (en) | 2020-01-17 |
| CN110707578B CN110707578B (en) | 2020-12-25 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203326208U (en) * | 2013-05-15 | 2013-12-04 | 国家电网公司 | Plug-type protective pressing plate |
| CN204156363U (en) * | 2014-08-29 | 2015-02-11 | 广东电网公司东莞供电局 | A kind of protection pressing plate anti-misoperation tool |
| CN205985754U (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | A prevent maloperation protection casing for protection pressing plate |
| CN107834500A (en) * | 2017-11-29 | 2018-03-23 | 国家电网公司 | A kind of anti-miscarrying pressing plate cover for being used to protect pressing plate |
| CN207409409U (en) * | 2017-10-30 | 2018-05-25 | 贵州电网有限责任公司 | A kind of limiting device for plug-in pressing plate |
| CN207819137U (en) * | 2018-01-30 | 2018-09-04 | 广东电网有限责任公司茂名供电局 | A kind of plug-in type pressing plate |
| CN208461206U (en) * | 2018-05-14 | 2019-02-01 | 国家电网公司 | Prevent protection pressing plate malfunction device |
| CN208489145U (en) * | 2018-06-20 | 2019-02-12 | 国网江苏省电力有限公司泰州供电分公司 | Novel pressboard separation sleeve and Anchor plate kit containing the separation sleeve |
| CN109617233A (en) * | 2018-12-14 | 2019-04-12 | 朱明增 | Protect pressing plate automatic checking method of calibration |
-
2019
- 2019-11-15 CN CN201911118534.3A patent/CN110707578B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203326208U (en) * | 2013-05-15 | 2013-12-04 | 国家电网公司 | Plug-type protective pressing plate |
| CN204156363U (en) * | 2014-08-29 | 2015-02-11 | 广东电网公司东莞供电局 | A kind of protection pressing plate anti-misoperation tool |
| CN205985754U (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | A prevent maloperation protection casing for protection pressing plate |
| CN207409409U (en) * | 2017-10-30 | 2018-05-25 | 贵州电网有限责任公司 | A kind of limiting device for plug-in pressing plate |
| CN107834500A (en) * | 2017-11-29 | 2018-03-23 | 国家电网公司 | A kind of anti-miscarrying pressing plate cover for being used to protect pressing plate |
| CN207819137U (en) * | 2018-01-30 | 2018-09-04 | 广东电网有限责任公司茂名供电局 | A kind of plug-in type pressing plate |
| CN208461206U (en) * | 2018-05-14 | 2019-02-01 | 国家电网公司 | Prevent protection pressing plate malfunction device |
| CN208489145U (en) * | 2018-06-20 | 2019-02-12 | 国网江苏省电力有限公司泰州供电分公司 | Novel pressboard separation sleeve and Anchor plate kit containing the separation sleeve |
| CN109617233A (en) * | 2018-12-14 | 2019-04-12 | 朱明增 | Protect pressing plate automatic checking method of calibration |
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| CN110707578B (en) | 2020-12-25 |
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